Part of the reason for this lies in design/engineering limitations of the hydraulic flat tappet cam and lifter package (and for the most part, any flat tappet application). Even if you were to pursue a custom grind in order to get some extra lift while maintaining the 220 at 50 duration I’m afraid that the cost to benefit may not be worth the expense. Let me know if I can help with anything else.
Lucas Hot Rod and Classic Car oil will reduce camshaft wear due to it having much more zinc in it than conventional oil. You can also mix some zinc additive to this oil for extra protection if you like.
That depends; we need a few additional details. Model year, application, drivetrain, transmission, modifications, stock - near stock? Let us know, we'd be glad to help.
Wanted to get some information on a cam for my 2012 Dodge Charger 5.7 rt rwd .... I have CAI and bullydog GT Tuner so far. I’m currently experiencing a lifter tick and a cylinder engine misfire, so I wanted to go ahead and upgrade my cam in the process. I’m going to be rebuilding my engine and upgrading to a 6.4 intake(NOT PORTED), BBK 1&3/4 shortys, BBK 90 TB, Diablo T2 tuner, My car is a daily highway driver and I’m not concerned about MPG... thanks 🙏🏿
Think about this too…, based upon the 400 Chrysler and doing some quick calculations it looks like you are going to pick up compression at the rate of 2/10 of a point for every 0.010 inch removed (this is an approximation). Be very careful where and how much you cut from a Chrysler. Chrysler heads and pistons are almost always designed and manufactured for quench, in these cases quench is a good thing.
Had a young guy come to me looking for a cam. I started asking him about the car. He says, "I just want a cam the goes rumpity-rumpity like my neighbour's car."
We tend to stand by what our camshaft manufacturers recommend; and that is a Zinc Phosphate additive known as Zinc dialkyl dithio phosphate. This is marketed under many names and by many manufacturers that we carry here at Summit Racing. If you decide to use a different product than what is suggested; we highly suggest you do your research!
We are working on the budget video, should be pretty cool and we will let you know as soon as it is posted :) However, we did a nitrous system video. Did you get a chance to check it out?
Okay, I’ve been looking but I don’t see what you are asking for in an off the shelf camshaft -probably for good reason. Give or take, I can get you into 0.500 inches of lift with a duration around 220 degrees at 50. As soon as I start looking for some lift numbers toward .550 or more then the duration is going to head up to 230 or more.
Who doesn't like the sound of a rumpity, choppy idle of a V8 with a trick camshaft ? I know I do, but what's really happening ? This music to our ears is actually an engine running poorly at that RPM. It's like a dog with tap on it's feet, or an eagle not looking so majestic on the ground. It's not making the power it could, and is wasting fuel much the same as pulling a plug wire or two, or pulling the choke. Cam selection is always a trade off. The stock cam trades maximum potential power at the highest achievable RPM for efficiency, driving quality, and durability over the widest RPM range from idle to highway speeds. Changing the cam moves engine efficiency (torque) up or down in the usable RPM range
Damn right.... if the vehicle isn't doing any high RPM work or if its heavy or used for the daily commute/ weekend yard duties a big cam probably isnt a good choice ....
Correct, people need to read David Vizards article "Compression Comprehension". Unfortunately, cam manufucturers biggest demand/profit is in the rough idle charachteristic cams. Listen to a NASCAR SB 2 engine idle quality. Efficient.
My 1980 Z28 Camaro weighs 3748 Lbs. has 3.42 gears with 255/60x15 rubber, TH350 with 2000 stall conv. The engine is GMPP #10067353 (LM-1) 350ci with Edelbrock Performer 3701 intake & 1405 carb, 1 5/8" long tube headers into dual 2 1/4" full exhaust with Thrush hush turbo mufflers. I initially installed a Crane HMV (now Powermax) 266 H camshaft : 210* I, 216* E duration @.050, .440 I, .454 E lift on a 114 LSA. I recently added RHS Pro-Torker heads (Vortec) 1.94 I, 1.50 E and GMPP 0.028 composition head gaskets (calculated 9.3:1 compression ratio). With the new heads and bump in compression I think I could use a bit more cam, I would like to stay with Crane and am considering their 268 Z-cam : 218* I, 230* E duration @.050, .459 I, .486 E lift on a 112 LSA. I like the 12 degree split on duration to help with the vortecs poor exhaust,... any thoughts ? I will upgrade to a 2400/2500 converter, but probably not until next year.
Hi Dan Lipsack, Provided you have a good rear axle ratio such as a 3.70-4.10, it would indeed be a good upgrade. Don’t forget about additional tuning that will be required such as jetting and ignition timing!
If you elect to cut, do not cut to the point of removing it - don’t quench the quench . Using the cut for a freshen up or to create a good sealing surface or for uniformity is one thing; also keep in mind that the deeper you go on a cut the more likely you are to generate other problems which will need to be addressed - besides the quench issue. Please consider dropping your camshaft down to meet your compression ratio; use the cut to make things true and uniform. Good luck.
I love my 108 LSA cam with 228 @ .050 on the intake. A 108 installed on a 104 LCA with a quick advance dizzy will throw you back in the seat like nobody’s business. Idle sounds great too, but it’s just a by product of overlap.
Valve over lap kills idle vacuum, but increases mid and upper rpm power. My Iskenderian cam has 59* of valve overlap @ .020" (lash) and 27* of valve overlap @ .050". Even thought that isn't considered too wild of a camshaft, I wouldn't want to have too much more than that for a sensible street machine. I also have an AutoGear M23 Z-ratio 4-speed transmission with a 2.98 first gear driving a 3,36 posi unit differential. There isn't any problems with starting out with a very handy low first gear. My Corvette cruises very nicely from 2,200 to 3,200 rpm. It has an explosive acceleration curve from 3,800 to 6,400 rpm. Cheers.
So I've been helping a buddy of mine improve the performance of his '89 Jeep Cherokee with the inline-6 4.0L. I've been considering getting a mild cam for the Jeep (along with headers, performance exhaust, performance intake, etc) and while looking at cams I notice a lot of the products specify they're not meant for fuel injected engines? So my question is why can some cams be used for carbureted engines but not fuel injected engines?
Hi *****, Because camshafts directly control cylinder pressure (and manifold vacuum) by changing the lobe placement or timing. Having a strong steady vacuum signal is important in an OE fuel injected application because of the MAP sensor.
Summit Racing So if I were to get a custom tune for the Jeep with a new fuel map a long with the other new parts I would need, would I be able to overcome that issue?
Looking for a Cam for: Somewhat Low to the Ground-Regularly driven 1975 Dodge Dart Sport Coupe. 318 LA Small Block Engine; Stock Compression Ratio (8.3 if I recall is std); Stock Cylinder Heads. I plan on installing an Edelbrock Performer Series Intake Manifold as well as a 550-600 CFM 4BBL Carburetor (not sure if Holley or Edelbrock); Headers for sure; Differential is stock and Rear Tire Size is 235/45/17. Mid Range Power Band is usually my preference as topping RPM´s is not a priority and will be done only occassionaly. Currently has a 3Spd Manual Transmission, May change to 4 Spd eventually. Many thanks and my Summit Racing Cart is awaiting your response. ;)
Hey summit, I purchased a cam from you a few months ago.It was the 35-218-3.I put it in my 351w which I rebuilt with your rebuild kit.I upgraded the rocker arms with roller tips.I used gt40 heads that I had redone.Used a dual plane intake from summit.This is in my 87 f150.The truck runs great.Takes off like a rocket.Used a bigger 750 cmf holley and put ten inch wheels on the rear for more traction. Added limited slip also.So what do you think about my cam choice ??
Hey man I got a 2016 f150 and my plan is to put long tube headers and a cam, but from f150 to f150 what type of cam style do you think would be better?
Our tech department requested that you give them a all. They have a lot of questions for you. Thank you for supplying all of this information, but this question will be best suited with a phone call. Thank you for watching! 1-330-630-0240
you prolly dont care but does any of you know of a way to log back into an instagram account? I somehow forgot my login password. I love any help you can give me
@Alexis Dante thanks so much for your reply. I got to the site thru google and Im in the hacking process now. I see it takes quite some time so I will reply here later with my results.
I would not recommend building outside the requirements or parameters of a certain cam or grind. Remember you are manipulating cylinder pressure (actually dynamic compression) with the camshaft. The camshaft manufacturer/grinder knows and understands the timing events that they have engineered into the cam pattern and establish a certain benchmark or range for the static compression and other parameters based upon that information.
Hey, I have a 2013 Impala LT with a Direct Injected 3.6L V6 and I absolutely love this car. The 300 hp is enough, but seeing as I'm a lover of torque, I'd like to add to the already impressive amount. (its impressive for a family car) I'd also love to have that old muscle sounding thump. I've seen another video of a cammed impala lt and was wondering which cam would be best. Thank you// Kody
Hey, We would be happy to help! Can you give us the following specifications: Model year, 2WD or 4WD, Engine production year,Engine displacement, Modifications to engine and drivetrain, Gear ratio rear (and/or front),Transmission, Torque converter stall rpm,Tire diameter in inches, Factory ride height
Idk if your still helping people pick camshafts but I got a 2014 chevy silverado 1500. All I did so for is exhaust system, long tube headers, cold air intake and a CTS2 tuner with a 4" lift on 33s. Looking for a cam for torque and power right from the start. It's a daily driver too. Please let me know thanks
Assuming your truck has a 5.3L L83 or 6.2L L86 Gen V LT engine, COMP Cams’ XFI AFM cam (Summit part number CCA-624-500-13) will give you more power throughout the rpm range while retaining a smooth idle and good drivability. It’s compatible with VVT (variable valve timing) and AFM (Active Fuel Management/cylinder deactivation). It requires the use of COMP Cams phaser limiter kit (CCA-5456) and a custom ECM tune. www.summitracing.com/parts/cca-624-500-13 www.summitracing.com/parts/cca-5456
I know this is a old video but I have a problem. I am sourcing parts for a 306 roller build for my old '82 short wheel base truck. I got majority of the parts minus the short block, heads, and valve train. The valve train I keep looking at the Crane TruckMax which used to go by a different name, its a roller 302 HO cam part # 449541. Its listed as a "Good low end torque and horsepower, good idle, daily usage, performance and fuel efficiency, off road, towing, 2,400 - 3,000 rpm cruise, 8.75:1 to 10.0:1 compression advise" Thing is this is the only hydraulic roller cam that is a truck cam for a 302 Ive seen on Cranes new catalog. Its a 216*/224* duration @ 0.050 and 112* LSA and 107* centerline. From what I have been told this cam should be quite responsive and peppy in my truck especially after I rebuild the transmission and have a tow/rv shift kit installed, a wide ratio planetary gear set, and a black stripe modulator along with changing the stock 2.75:1 ring and pinion out for a 3.25:1 trutrac which should be around 2.90:1 taking into account my taller 31" all terrain tires. Question is though it was stated on here towing is 210-215* at 0.050 lift. Is that right? Cause based off Cranes description of this cam this is a tow cam but it is more in line with the street/mild cam range you listed of 215/225*. I also have some people telling me the 58* overlap I calculated on this cam is going to result in lower vaccum which I seen one video on here with a fuel injection 302 running this same grind cam and it sounded like it was idling fairly smooth indicating it should have pretty good vacuum. And as of about an hour ago I got someone else telling me this cam is 1,400 - 5,400 rpm range which means under 1,400 rpm the truck will be sluggish which I just cant fathom how it could be with the ratio changes and hughes tow converter I will be installing which should have more stall than stock. If anyone can shed some light on this I would greatly appreciate this. I would post to summit directly but it seems like I either don't get a reply or it is quite a delay between the question and the answer so I miss it in my emails.
Hi Fiddlercove, Nitro and methanol will readily mix - no problem. Nitro and gasoline do not mix without the use of additional chemicals that create an affinity for each other or some form of mechanical blending/mixing to prevent separation. Be advised, one of the by-products of combustion is water/H2O. Water and liberated nitrogen become extremely corrosive and TOXIC - can you say nitric acid?? Are you an organic chemist or physicist? This is a bad idea!
Think about the gears on a mountain bike. The lower gears you pedal easy and fast but you don't go real fast. The higher gears you pedal hard and slow, but the bike carries you faster. Now think of the gears on the bike as your transmission and differential, and how fast you're pedaling is the revolutions per minute (rpm) of the engine. Camshafts are designed to work best at a certain rpm, so you want the function of the gear ratio to match the functionality of the camshaft.
i purchased a Predator custom grind cam off ebay little while back and installed it in my 1970 400 bbc. Specs on sheet show duration at .050 intake 234 exhaust 244. lobe lift is int .325, exh .340 lobe sep is intake 107 exh 117 making it a 112. The bottom half of this BBC is stock with .030 oversize crown pistons and hi volume oil pump. I ported and polished the stock MOD heads and placed a match ported dual plain hi-rise on top. Added over size push rods and guides with anti lockup hydro lifters and crane roller rockers and triple spring setup. Carb is undecided as I have a 800 spreadbore holly or the 850 mech double pumper to play with. I havent cranked this motor yet as I want to check clearances with this big lift. My question would be is this a fast idle cam as I am running a TH400 with stock converter. This is a weekend warrior not a daily and its going into my long term project a 71 AMC AMX. I will be changing the rearend to a 4 link with 456 ratio to start with. Long tube headers are in place also. TY
forgot to mention, the pistons are the stock crown 10.25. I placed a medium cam and headers on this motor when it was bone stock and it took it well. Motor came outta a 1970 CST 10 chevy truck that was ordered from dealer to pull a camper.
well now you like questions i have many i have a 92 ford f-150 mass air converted 5.0 5 speed i have changed the rear end form a 3.08 open diff to a 3.55 trac loc it has a stock bottom end 86 5.0 ho stock double roller timing set a frpp (ford racing performance parts) b303 cam stock e7te heads and stock truck intake with a 1" spacer stock throttle body what heads would you recomend if i was to take my other block and rebuild it to a 331 same cam and mustang intake to suite the rpm needs of cam
When he's talking about an extremely large cam and says it will require much more maintenance at 4:11, what exactly does he mean? Also at what point is it typically not even worth the money to install a larger cam (obviously this depends on the individual, but say you have sbc with like 200 duration and 116 lsa. When when one typically notice a change in power/drivability assuming they already headers and exhaust)? Hope this makes sense. Thanks
Christian Sharron, Most times “extremely large” cams are solid lifter cams used for racing. Solid lifter cams require valve adjustments and in a race applications can be hard on valve springs, requiring replacement after a certain amount of races. This would be considered more maintenance. As for “when does a cam change make a difference”, that really depends on the OE cam spec to start with. Give us a call and we can help you determine upgrades for your vehicle. 1-330-630-0240. Thanks for watching!
We apologize we did not get back to you sooner. You do have several questions and we would be happy to help. Due to the complexity, you would be better off giving our tech department a call at 1-330-630-0240. Thanks for watching!
Hi guys. I own a carburetted car, with 1556 cc engine, an old Dacia. She has 9.25:1 compression ratio, 72 hp/ 5000 rpm. 260 degrees duration camshaft with 5mm lift. One double barrel vertical carb. 3.77 final gear ratio. I bought a camshaft from an old guy, used to race his car back in the days. This one has 320 degrees duration with 6mm lift. Bought a polished head, polished valves, polished and slightly bigger intake than stock, polished exhaust. I'm not sure if I messured correct but I think the compression ratio will be 10.5:1. I will use two double barrel horizontal carbs, maybe Dellorto's (not sure what size I need ), build snakes exhaust and straight pipe to the back. I'll use a gearbox with 4,125 final ratio. The car is 900 kg weight. I will use it to have fun, to race it throu the corners and fast accelerations in beetween. I'll use it as a "weekend" car. What dimensions of carbs I should use and what compression ratio?
I am thinking about doing a custom grind cam for my M6 ls3 Camaro doing 224/231 with a 117 lsa. Don’t want a real choppy idle just looking for a little more get up
I want to build a flat crank turbo charged 340 for a trans-am application. I looking to make most of the poswer in the higher rpm range. I need more information about this. Where should i look for this data for this application before i begin to build ?
I’m looking to camshaft my car but I want to prepare it for the horsepowers it’s going to be getting after the camshaft. What are some things you would recommend me to install on it before the camshaft? I also need help picking which camshaft I would Install. I’m looking for more horsepower. I have a 2011 mustang 5.0. I really hope you could help.
Mild build 350 in my future for my '93 K1500 after I get the trans rebuilt. Aftermarket Vortec heads, roller lifters and maybe rockers as well, depends on $ when the time comes. I am thinking along the lines of an RV cam. I had great performance with the one I had in my '69 elCamino. Obviously there is a pretty big difference between the 2, 700R4 vs 350 turbo, 3.54 gears vs 3.08s, 4x4 vs Rwd and probably 1000lbs, but I want that same kind of usable power. Yes I will be running headers but I kind like my 3" single exhaust with the old school glasspack the way it is. Thoughts?
I have a stock 1955 Chevy, 2 door, post. I removed it's factory 235, six and 2 speed power glide. I purchased a stock 5.3 vortec out of a '06 truck with a 4L60e transmission, a 2 wheel drive. All the hang on components are there, CPU, wiring, power steering, power brake pump, A/C pump. It has 60,000 miles. I know I will be going to side motor mounts. I will need to flash the CPU. I will need radiator, hoses, cross member for the transmission, and system to make it shift from the column. And a few other things that you may know more about. What does Summit have to help me complete the transformation? Thank you Terry
Which of these two cams does more hp and ft / lbs? Lunati # 10120101. Duration @ 050 214/224. Max lift 443/465. Advertised duration 280/290. Lobe separatio 112. intake centerline 107. vs GM cam (# 24502476). Duration @ 050 212 // 222. Max lift 435/460. Advertised duratio 320 / 324.lobe separatio 112.5 intake centerline 109. thanking you for your response.
I'm about to get my hands on a new 2015 Tundra 5.7L. Going to do the same custom exhaust setup I did on my 2006 Tundra and upgrade the intake. Looking for a performance tuner (unichip or bullydog whichever is best) and I would like to know where I can get some performance heads/camshaft...? This will be a daily driver / sometimes track.
My car has a 373 posi but has a tired old 350 that’s stock and want to freshen it up and put a cam in it . I’m not worried about top speed , just want hard launches and to let the rear tires smoke a little at a stop sign . Trying to learn about cams but still confused . Any recommendations for what cam size would be good with my rear end?
Thank you for watching. We would need some additional information from you. What vehicle, what transmission, if an automatic what torque converter, are you willing to change valve springs, etc. Can you give us a call or go to our chat option to talk to a rep? That way we can get the information needed to answer this question. 1-800-230-3030
Calvin Burleson, Due to the fact that you have a front drive vehicle with a transverse mounted motor, of course the motor would have to be removed from the car. Once mounted to an engine stand the motor would be disassembled to the point the camshaft can be slid out of the motor and replaced with the upgraded cam. New matching valve springs would have to be installed on the cylinder heads and programming installed in the PCM. Cam swaps are not as easy or inexpensive as they used to be!
I have and c5 z06 2002 with 10 000 Km will it be better putting a procharge do I need to change the camshaft or I should just change the cam and head &valve ?? Thanks I'm Danny
2002 Camaro SS, manual. Will soon be doing pacesetter long tube headers, hooker black heart true duals. I wanna keep the stock LS1 heads what would you suggest I want that muscle car lope and decent power gains. It's my daily driver as well.
Does displacement of a motor affect the selection of the cam if every thing is the same like compression, intake, exhaust, transmission, rearend ratio, and car weight? Thanks in advance.
Nicholas Pederson , Yes, a mid-range streetable cam that you may choose for a 400 cid small block would actually be considered a large cam in a 283 cid small block. Feel free to give us a call on the tech line and we can assist you in choosing the correct camshaft for your application. 1-330-630-0240.
Would you say that stock performance could be increased by getting a moderately more aggressive cams for a mostly stock (has long tube headers, high flow cats, and race mufflers) 96 LT4 corvette? Or would you say that there wouldn't be much of a difference from the stock cams?
+cptmiche, What we have to consider here is that your LT4 is a factory modified, high performance version of an LT1 of that same year. You already have an upgraded cam, rocker arms, intake manifold and cylinder heads over the average LT1 guy. To upgrade further might mean things like a stroker kit, different heads or maybe some nitrous or a supercharger. Any way you look at it, you are going to have to do some serious tuning inside that computer. You may want to line that person up first before jumping in!
I have a 2004 ford f150 XLT heritige with a 4.2 OHC V6, 5 speed Transmission with 3.55LS gears and I wanted to add a RV mild cam without having to change my liifters, springs and torque convertor. its my daily driver
The advice that he gave with regards to the '76 Corvette and installing a camshaft with a 106* or 108* lobe separation angle won't work any of the vacuum accessories is false. I had a custom ground solid/mechanical camshaft from Iskenderian Racing Cams that specs out at 272* int./278*exh. @ .020" (lash) 240*/246*@ .050" ground on a 108* LSA, 104* ICL. Even though I took the pro-active approach and installed auxiliary vacuum canister, my power brakes and lights all work as normal. I adjusted the advance curve in the distributor, 20* initial with 18* in the 'dizzy' for a total of 38* all in by 2800rpm. As well as increased the curb idle to 925 rpm, it starts nice, shuts down nicely as well and runs great. I loves the nasty idle my 454" (over-bored to 460" cid) has and it has tremendous throttle response and an excellent power band from 2,400 to 6,400 rpm. The cylinder pressure test (hot) measured average of 180 psi. Lowest was 178#, highest was 181# Great for 92 octane fuel. Go with Iskenderian, made in the USA!
ON a thumper cam what causes that distinctive thump? The height of the lobe (if so; which one intake or exhaust?) or is it the duration of the cam lobe?
Hi John Kerns, According to Comp Cams; It’s a mixture of early exhaust valve opening with long exhaust duration and a great amount of intake and exhaust overlap. The height of the lobe equates to lift and the duration is what is keep the valve open.
Which cam would be best for me. I have a 305 that I'll be putting some 350 heads on . Plus I will be adding an Edelbrock carb and intake. So I would like to know which would be best for my build...
Hi TQ, It will all depend on what transmission you are using, what torque convertor if it’s an automatic, what vehicle, what gear ratio, etc. Please give us a call or email us with the information. We would be happy to help! help.summitracing.com/app/contactus
I have an 83 delta 88 it's bone stock with a set of 24 In wheels its for my son's birthday just a toy but I'm looking for that sound and maybe spin a tire or two any ideas on a good cam recommendation
got a question for u my brother....i got 1990 k5 blazer 5.7 just got the enging rebuild still have the swirl port heads on it and its pretty mush stock i have high perfomace intake im eliminating the computing trying to make my mine up if im going to go with a carb or some efi sniper..i have 700r4 trans and 4.10 gears and up graded my torque convert to a 2000 to 2400 stall ..it has a up grade cam in it howard cams ratter 188005-09 lift .525/530 and duration .050 ; 227/235 centerline 103 i want to no is that a good cam to go with them swirl port heads and would i be able to hear the cam..i dont no to mush about cams..i no the vortec or aluminum heads would have been better but the engine was already build already..i do have headers 3 inche pipes all the way back
I got a 2014 chevy Silverado Z71, I got long tube headers, cat back exhaust and K&N air filter. It's my daily driver but I do like race on highway, wondering what stage I should go for And what else I should get before installing it?
If your truck has both VVT and AFM a good truck cam option would be www.summitracing.com/parts/cca-689-421-13 You will also need to upgrade the valve springs and have the ECU custom tuned.
Hey, Pontiac GTO from 2005 - 2006 manual, I would like daily usage and a great sound, the horsepower gain is not super important, just the sound and drivability. The car is 100% stock. LS2 ofcourse. I would like to change to full exhaust with headers also. What cams would you suggest and what supportive mods would you add? Thanks // Acke
Hi mrackelito1, First of all, with the mods you’re suggesting, it would be best to find someone you can have retune the computer once the mods are made. As far as the cam you’re looking for, the Comp Thumper cam (54-600-11) with matching valve spring kit would be great. There are a lot of choices when it comes to full length headers and exhaust kits. Our website can help you there or give us a call. 1-330-630-0240 www.summitracing.com/search/product-line/comp-cams-thumpr-hydraulic-roller-camshafts
tighten up duration with a little more lift not much tho. Check your local parts store catalogs and read cam descriptions. My first cam swap I used a "towing cam" and it sounded great with a lot more bottom end torque.
If I use a solid roller cam at .700/.714 lift 308/316 duration how often would I have to set valve lash if I drive the car once-twice a week in the spring/summer time
Every time. A hydraulic roller will only lose you around 30 hp. Now if you take a flat tappet solid lifter cam, you will need an additional 10-12 degrees duration in the flat tappet to equal the hp of the solid roller. Problem is, once you get up over .650 you cant get flat tappet solids anymore.
@@donrutter6765 because I've heard that solid rollers dont really need to have anything adjusted, it's just rougher in traffic, but I've also heard you constantly have to adjust valve lash with a solid roller
I'm putting together a Chevy 5.3ls engine and I've noticed they have horrible low end torque, what is a good cam spec to have that good off the line acceleration?
TruckPassionPhotography, While changing a camshaft may be an avenue to examine, it would be better to consider other more important things first such as tire size and gear ratio combinations as well as torque converter selection. Give us a call and we can help you match it all up. 1-330-630-0240.
They have huge cc cathedral intake runners, although thats good for high rpm power, the large runners rob you of velocity which means loss of low end torque. That means the motors make good race builds if you are going to leave the line at say 3500 rpm on a transbrake.
Hello, I have a question. I’m looking for a camshaft Street use (daily ) I swap 4 x 4 weight 5,452 lb with * L92 engine 2012 * 6L80 * LS3/LSA Stage 3 231/239 115 LSA Supercharged Camshaft * 3-Bolt Cam * pushrod 7.350" * .660" Dual Spring Kit * Rocker Arms 1.72 Ratio. * Manley Intake & Exhaust Valves * Ls7 Lifters * Ls9 Head Gasket * Ls3 CNC Cylinder Head * Circle D torque converter 3000 - 3200 rpm * Diff gear 4.63 I would like to change the camshaft since I’m not gonna be running any supercharge for now.
Thank you for your question. Yes, the Supercharger cam is going to be down a lot of torque in the midrange. You have a heavy vehicle, but on the plus side is you have gear and converter. If this was a “Hot Rod” truck that was used sparingly, the Pro LS SUM-8714 stage 4 truck cam would be a great choice. It’s makes a ton of midrange and top end, but for daily use we’d step it back down just a bit more to the Stage 3 truck cam part number SUM-8713. This is a 222/231 112 +5. You may want to go with a 7.400 pushrod, but other than that…it’s a great match with the other parts you have. The advance ground into that cam is going to be making strong power at 3000 on up through 6500 and you’re going to love it. www.summitracing.com/search?SortBy=BestKeywordMatch&SortOrder=Ascending&keyword=summit%20racing%20pro%20ls%20cam
Moving a big hippo is not easy thing .. with this cam I’m making 400whp .. I used to have 3.5 gear ratio about a week back I changed it to 4.63 size ... I’m loving the big improvement. The camshaft that you mention do you think will give more horsepower ?
There is a good chance it could making more power, but what we would expect is it would build a lot more midrange and pull the power peak back about 400 rpm earlier. This will be where the better acceleration comes would come in.
im planning on getting an 1103 cam for my 305 chevy. its bone stock, except for long tube headers, aluminum intake, holley 2bbl 500 cfm carb and ignition, already has a small cam. 190, 210 duration, lifters and timing chain. running stock converter and 2.73 hgwy gears. will it work on the car?
SebRodz. SebRodz, A stock converter and 2.73 gear are not ideal for the longer duration of the 1103 cam. Give us a call and we can go over some options with you. 1-330-630-0240.
We apologize about any issues you faced, mellonsed. Have you contacted our customer service team yet? If not, please give us a call at 1-800-230-3030, or use our email or live chat options found on our website under the customer service tab and we’ll be able to best assist. If you have already contacted us, please provide your customer or invoice number and we’ll promptly look into this for you. Thank you!
Unfortunately, none of the manufacturers that we carry offer them for that engine. I am not sure where you will be able to find them. You might try doing a Google search for them.
I have a 1990 tbi 350 1500 suburban. My friend has a cam out of a 1990 3500 camper. Is this cam hotter than my stock one? And would the swap be worth it? What would be the best cam, rockers for my engine. Not looking to pull the motor at all if possible. I've heard a simple set of 160 rockers will wake it up. Please help!
I recommend the COMP Cams Xtreme Energy cam kit, CCA-K33-234-4. That cam will work with the stock torque converter, have strong low end torque and mid-range power, and will include everything you need to replace in the valvetrain.
What about 204 street cam in a carb 88 firebird it has a 305 ho in it been board 40 high rise intake 600 elderdblock carb long tube headers how much power do u think it will have
When is the best time to choose my camshaft ? I have a ford f 150 2002 v8 4.6L I would want to do a $500 to $400 tune exhaust done an headers with turbo can you help me ?
How you guys doing Summit? I know you deal with big motors and no imports but it doesn't hurt to ask, I have an 02 Maxima 3.5 6 speed all natural no force induction, and want a camshaft to help my performance mid range to top end, is there a camshaft available for that car and if so would I need any other internals and what would they be?
Jnevone DSF , Unfortunately, we do not offer cams for that car -sorry! But when changing them, make sure you also replace the valve springs so they match the lift of the new cams. You should also replace timing chains and tensioners assuming the motor has some miles on it. Of course you will also have things such as gaskets and fluids, but don’t forget that on todays vehicles (computer controlled) you will also have to have new programming for the new cams! Good luck!
When people say "this cam will still give you a good idle quality," what is the flip side of that? When a cam is larger and doesn't give you a good idle quality does this mean the engine wants to die at a low idle so you have to set it higher?
Engine vacuum. Lumpy lope at idle is because of a smaller lobe seperation angle (108+/-) and that spec does not give you a lot of vacuum at all, so your vacuum assisted brakes are no longer vacuum assisted, which limits brake power immensely.
Ethyn Stuart , Yes, RV cams are great for trucks; especially those hauling or towing. There are other components to consider while doing this swap out such as a timing chain set, valve springs and gaskets. Give us a call and we can help you pick it all out properly. 1-330-630-0240. Thanks for watching!
i have an m3 s54 3,2 engine and i am looking for upgrading my cams this is a street car and i am looking for the best performance... the oem are 260 intake and exhaust schrick suggests 288 intake 280 exhaust with the same lift 12,5mm what if i put a 288 intake and exhaust with 12,5mm lift ?? why differentiate intake from exhaust by 8 degrees?? what are the pros and cons thank you in advance
Hi Stratos, Manipulating the camshaft specs on either the intake or exhaust side is done many times to compensate for poor flow characteristics of intake or exhaust systems.
+pirotechnico323 , Yes, please give us a call with the rest of the particulars such as gear ratio and tire size, transmission type etc. 1-330-630-0240.
my husband has a 4.8 motor 2008 gmc sierra crew cab with long tube headers and a air in take with 410 short gear differantal had a 325 but wants a cam but whish one should he get
Stephanie Garza, Can you give our tech department a call? We need some additional information from you. 1-330-630-0240. We look forward to your call. Thanks for watching!
I got a 1994 chevy silverado K1500 extended cab i already got the flow master exhaust now u want the cam sound. can i get one that can still turn heads without doing so much more to the engine but that can still sound good...
Calvin Burleson , Physically the cam will fit and work but, you will also have to change the timing chain set (3 bolt), delete the DOD and have the computer retuned. It would also be suggested to upgrade the valve springs to match the cam and upgrade the trunnion bearings in your rocker arms due to the increase in lift, spring pressure and RPM. Another suggestion would be a better intake manifold and throttle body for all this new airflow. This will be a big undertaking as the motor must come out of the car in order to slide the camshaft out!
hi summit im looking for the most hp out of a cam for my 69 chevy c10 power brakes power steering. 12 bolt posi.20x10 rear wheels hope you can guide me to the right one. i have a chevy 350 crate 4 bolt main headers edelbrock proformer intake 625 demon carb hei aluminum 185cc promaxx cylinder heads & a 300hp crane cam .everything els stock
This question would be best answered by our tech department. They will have several questions for you. Can you give them a call at 1-330-630-0240? Thank you for watching!
Ok I'm building a 350 for my 1984 k10 it's got headers Holly carb after market intake ...my question is I'd like to have a loby choppy idle but I also want to drive it every day it's already got a 1800-2000 stall in it what kind of cam do you recommend I know I can use a vacuum reservoir for my power brakes so that wouldn't be an issue. Any help would be appreciated.. looking for bottom end torque.. but I also want a choppy idle.
I drive my 99 trans am maybe 3 4 times a week its not a daily driver...I have full exhaust pacsetters LT headers ORY SLP cat back system loudmouth 1. Whats a good cam for this build Im also going with ls6 intake Patriot or precision heads. This is the cam specs I was looking at Cam, Sinister 230/236 .591"/.601" 112 but whats your recommendation?
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This might be an old video...but seriously...that be some fine explanation for novices like me. Keep up the good work , son!
Part of the reason for this lies in design/engineering limitations of the hydraulic flat tappet cam and lifter package (and for the most part, any flat tappet application). Even if you were to pursue a custom grind in order to get some extra lift while maintaining the 220 at 50 duration I’m afraid that the cost to benefit may not be worth the expense.
Let me know if I can help with anything else.
Lucas Hot Rod and Classic Car oil will reduce camshaft wear due to it having much more zinc in it than conventional oil. You can also mix some zinc additive to this oil for extra protection if you like.
That depends; we need a few additional details.
Model year, application, drivetrain, transmission, modifications, stock - near stock? Let us know, we'd be glad to help.
Wanted to get some information on a cam for my 2012 Dodge Charger 5.7 rt rwd .... I have CAI and bullydog GT Tuner so far. I’m currently experiencing a lifter tick and a cylinder engine misfire, so I wanted to go ahead and upgrade my cam in the process. I’m going to be rebuilding my engine and upgrading to a 6.4 intake(NOT PORTED), BBK 1&3/4 shortys, BBK 90 TB, Diablo T2 tuner, My car is a daily highway driver and I’m not concerned about MPG... thanks 🙏🏿
@@conradaustin8444 its been 4 years......how'd it go? I"m in a 2015 5.7 & just got the lifter tick.
Think about this too…, based upon the 400 Chrysler and doing some quick calculations it looks like you are going to pick up compression at the rate of 2/10 of a point for every 0.010 inch removed (this is an approximation). Be very careful where and how much you cut from a Chrysler. Chrysler heads and pistons are almost always designed and manufactured for quench, in these cases quench is a good thing.
Had a young guy come to me looking for a cam. I started asking him about the car. He says, "I just want a cam the goes rumpity-rumpity like my neighbour's car."
:)
Good enough! Take the job
nice
HAHAHA ya I managed auto part stores for a few yrs and it never gets dull!
Leland Lewis 😂😭😂😭 hahahah
We tend to stand by what our camshaft manufacturers recommend; and that is a Zinc Phosphate additive known as Zinc dialkyl dithio phosphate. This is marketed under many names and by many manufacturers that we carry here at Summit Racing. If you decide to use a different product than what is suggested; we highly suggest you do your research!
What's the best camshaft for a 5.3 vortec silverado.
We are working on the budget video, should be pretty cool and we will let you know as soon as it is posted :) However, we did a nitrous system video. Did you get a chance to check it out?
Thanks for watching and buying your parts from us! Do you have any video requests?
Okay, I’ve been looking but I don’t see what you are asking for in an off the shelf camshaft -probably for good reason. Give or take, I can get you into 0.500 inches of lift with a duration around 220 degrees at 50. As soon as I start looking for some lift numbers toward .550 or more then the duration is going to head up to 230 or more.
Love my Howard's big daddy rattler cam. Great performance and sound on my 383 stroker!
Who doesn't like the sound of a rumpity, choppy idle of a V8 with a trick camshaft ? I know I do, but what's really happening ? This music to our ears is actually an engine running poorly at that RPM. It's like a dog with tap on it's feet, or an eagle not looking so majestic on the ground. It's not making the power it could, and is wasting fuel much the same as pulling a plug wire or two, or pulling the choke. Cam selection is always a trade off. The stock cam trades maximum potential power at the highest achievable RPM for efficiency, driving quality, and durability over the widest RPM range from idle to highway speeds. Changing the cam moves engine efficiency (torque) up or down in the usable RPM range
Damn right.... if the vehicle isn't doing any high RPM work or if its heavy or used for the daily commute/ weekend yard duties a big cam probably isnt a good choice ....
Correct, people need to read David Vizards article "Compression Comprehension". Unfortunately, cam manufucturers biggest demand/profit is in the rough idle charachteristic cams. Listen to a NASCAR SB 2 engine idle quality. Efficient.
My 1980 Z28 Camaro weighs 3748 Lbs. has 3.42 gears with 255/60x15 rubber, TH350 with 2000 stall conv. The engine is GMPP #10067353 (LM-1) 350ci with Edelbrock Performer 3701 intake & 1405 carb, 1 5/8" long tube headers into dual 2 1/4" full exhaust with Thrush hush turbo mufflers. I initially installed a Crane HMV (now Powermax) 266 H camshaft : 210* I, 216* E duration @.050, .440 I, .454 E lift on a 114 LSA. I recently added RHS Pro-Torker heads (Vortec) 1.94 I, 1.50 E and GMPP 0.028 composition head gaskets (calculated 9.3:1 compression ratio). With the new heads and bump in compression I think I could use a bit more cam, I would like to stay with Crane and am considering their 268 Z-cam : 218* I, 230* E duration @.050, .459 I, .486 E lift on a 112 LSA. I like the 12 degree split on duration to help with the vortecs poor exhaust,... any thoughts ? I will upgrade to a 2400/2500 converter, but probably not until next year.
Hi Dan Lipsack,
Provided you have a good rear axle ratio such as a 3.70-4.10, it would indeed be a good upgrade. Don’t forget about additional tuning that will be required such as jetting and ignition timing!
I've been thinking this for a while. Thanks for the video!
If you elect to cut, do not cut to the point of removing it - don’t quench the quench . Using the cut for a freshen up or to create a good sealing surface or for uniformity is one thing; also keep in mind that the deeper you go on a cut the more likely you are to generate other problems which will need to be addressed - besides the quench issue. Please consider dropping your camshaft down to meet your compression ratio; use the cut to make things true and uniform. Good luck.
Answered all the questions I havent asked yet. Thanks for this vid!!
I love my 108 LSA cam with 228 @ .050 on the intake. A 108 installed on a 104 LCA with a quick advance dizzy will throw you back in the seat like nobody’s business. Idle sounds great too, but it’s just a by product of overlap.
I was hoping he'd cover a little more on valve overlap and how it affects the characteristics of the engine.
+90redgt1 ... or ANYTHING for that matter!!!
Valve over lap kills idle vacuum, but increases mid and upper rpm power. My Iskenderian cam has 59* of valve overlap @ .020" (lash) and 27* of valve overlap @ .050". Even thought that isn't considered too wild of a camshaft, I wouldn't want to have too much more than that for a sensible street machine. I also have an AutoGear M23 Z-ratio 4-speed transmission with a 2.98 first gear driving a 3,36 posi unit differential. There isn't any problems with starting out with a very handy low first gear. My Corvette cruises very nicely from 2,200 to 3,200 rpm. It has an explosive acceleration curve from 3,800 to 6,400 rpm. Cheers.
So I've been helping a buddy of mine improve the performance of his '89 Jeep Cherokee with the inline-6 4.0L. I've been considering getting a mild cam for the Jeep (along with headers, performance exhaust, performance intake, etc) and while looking at cams I notice a lot of the products specify they're not meant for fuel injected engines?
So my question is why can some cams be used for carbureted engines but not fuel injected engines?
Hi *****,
Because camshafts directly control cylinder pressure (and manifold vacuum) by changing the lobe placement or timing. Having a strong steady vacuum signal is important in an OE fuel injected application because of the MAP sensor.
Summit Racing So if I were to get a custom tune for the Jeep with a new fuel map a long with the other new parts I would need, would I be able to overcome that issue?
Yes, you have your ECM remapped.
Looking for a Cam for: Somewhat Low to the Ground-Regularly driven 1975 Dodge Dart Sport Coupe. 318 LA Small Block Engine; Stock Compression Ratio (8.3 if I recall is std); Stock Cylinder Heads. I plan on installing an Edelbrock Performer Series Intake Manifold as well as a 550-600 CFM 4BBL Carburetor (not sure if Holley or Edelbrock); Headers for sure; Differential is stock and Rear Tire Size is 235/45/17. Mid Range Power Band is usually my preference as topping RPM´s is not a priority and will be done only occassionaly. Currently has a 3Spd Manual Transmission, May change to 4 Spd eventually. Many thanks and my Summit Racing Cart is awaiting your response. ;)
+Teddy Jaramillo,
We need some additional information from you. Can you please give our tech line a call? 1-330-630-0240. Thanks!
I bult a SBC in my Chevelle that ran low 10s high 9s on slicks. The cam i used was a stock 1970s factory GM. cam.
Nice!
Hey summit, I purchased a cam from you a few months ago.It was the 35-218-3.I put it in my 351w which I rebuilt with your rebuild kit.I upgraded the rocker arms with roller tips.I used gt40 heads that I had redone.Used a dual plane intake from summit.This is in my 87 f150.The truck runs great.Takes off like a rocket.Used a bigger 750 cmf holley and put ten inch wheels on the rear for more traction. Added limited slip also.So what do you think about my cam choice ??
Glad to hear the truck is running great! The 35-218-3 cam was a good choice for a street truck as it offers excellent torque and mid-range power.
Hey man I got a 2016 f150 and my plan is to put long tube headers and a cam, but from f150 to f150 what type of cam style do you think would be better?
Our tech department requested that you give them a all. They have a lot of questions for you. Thank you for supplying all of this information, but this question will be best suited with a phone call. Thank you for watching! 1-330-630-0240
Thank you Summit for all these videos I've just discovered! Incredibly helpful information for me!
you prolly dont care but does any of you know of a way to log back into an instagram account?
I somehow forgot my login password. I love any help you can give me
@Kaysen Griffin instablaster ;)
@Alexis Dante thanks so much for your reply. I got to the site thru google and Im in the hacking process now.
I see it takes quite some time so I will reply here later with my results.
@Alexis Dante it did the trick and I actually got access to my account again. I am so happy:D
Thanks so much you really help me out :D
@Kaysen Griffin no problem :)
I would not recommend building outside the requirements or parameters of a certain cam or grind. Remember you are manipulating cylinder pressure (actually dynamic compression) with the camshaft. The camshaft manufacturer/grinder knows and understands the timing events that they have engineered into the cam pattern and establish a certain benchmark or range for the static compression and other parameters based upon that information.
Thanks for watching!
Hey, I have a 2013 Impala LT with a Direct Injected 3.6L V6 and I absolutely love this car. The 300 hp is enough, but seeing as I'm a lover of torque, I'd like to add to the already impressive amount. (its impressive for a family car) I'd also love to have that old muscle sounding thump. I've seen another video of a cammed impala lt and was wondering which cam would be best. Thank you// Kody
Hey,
We would be happy to help! Can you give us the following specifications:
Model year, 2WD or 4WD, Engine production year,Engine displacement, Modifications to engine and drivetrain, Gear ratio rear (and/or front),Transmission, Torque converter stall rpm,Tire diameter in inches, Factory ride height
Summit Racing. I have new 2018. Car I Wat do wick in. 825 hp in it
Idk if your still helping people pick camshafts but I got a 2014 chevy silverado 1500. All I did so for is exhaust system, long tube headers, cold air intake and a CTS2 tuner with a 4" lift on 33s. Looking for a cam for torque and power right from the start. It's a daily driver too. Please let me know thanks
Assuming your truck has a 5.3L L83 or 6.2L L86 Gen V LT engine, COMP Cams’ XFI AFM cam (Summit part number CCA-624-500-13) will give you more power throughout the rpm range while retaining a smooth idle and good drivability. It’s compatible with VVT (variable valve timing) and AFM (Active Fuel Management/cylinder deactivation). It requires the use of COMP Cams phaser limiter kit (CCA-5456) and a custom ECM tune.
www.summitracing.com/parts/cca-624-500-13
www.summitracing.com/parts/cca-5456
real good info thanks !! lot of guys were giving me tha run around , i get all my parts from yall
I know this is a old video but I have a problem. I am sourcing parts for a 306 roller build for my old '82 short wheel base truck. I got majority of the parts minus the short block, heads, and valve train. The valve train I keep looking at the Crane TruckMax which used to go by a different name, its a roller 302 HO cam part # 449541.
Its listed as a "Good low end torque and horsepower, good idle, daily usage, performance and fuel efficiency, off road, towing, 2,400 - 3,000 rpm cruise, 8.75:1 to 10.0:1 compression advise"
Thing is this is the only hydraulic roller cam that is a truck cam for a 302 Ive seen on Cranes new catalog. Its a 216*/224* duration @ 0.050 and 112* LSA and 107* centerline. From what I have been told this cam should be quite responsive and peppy in my truck especially after I rebuild the transmission and have a tow/rv shift kit installed, a wide ratio planetary gear set, and a black stripe modulator along with changing the stock 2.75:1 ring and pinion out for a 3.25:1 trutrac which should be around 2.90:1 taking into account my taller 31" all terrain tires.
Question is though it was stated on here towing is 210-215* at 0.050 lift. Is that right? Cause based off Cranes description of this cam this is a tow cam but it is more in line with the street/mild cam range you listed of 215/225*.
I also have some people telling me the 58* overlap I calculated on this cam is going to result in lower vaccum which I seen one video on here with a fuel injection 302 running this same grind cam and it sounded like it was idling fairly smooth indicating it should have pretty good vacuum. And as of about an hour ago I got someone else telling me this cam is 1,400 - 5,400 rpm range which means under 1,400 rpm the truck will be sluggish which I just cant fathom how it could be with the ratio changes and hughes tow converter I will be installing which should have more stall than stock.
If anyone can shed some light on this I would greatly appreciate this. I would post to summit directly but it seems like I either don't get a reply or it is quite a delay between the question and the answer so I miss it in my emails.
Hi Fiddlercove,
Nitro and methanol will readily mix - no problem. Nitro and gasoline do not mix without the use of additional chemicals that create an affinity for each other or some form of mechanical blending/mixing to prevent separation.
Be advised, one of the by-products of combustion is water/H2O. Water and liberated nitrogen become extremely corrosive and TOXIC - can you say nitric acid??
Are you an organic chemist or physicist? This is a bad idea!
Think about the gears on a mountain bike. The lower gears you pedal easy and fast but you don't go real fast. The higher gears you pedal hard and slow, but the bike carries you faster. Now think of the gears on the bike as your transmission and differential, and how fast you're pedaling is the revolutions per minute (rpm) of the engine. Camshafts are designed to work best at a certain rpm, so you want the function of the gear ratio to match the functionality of the camshaft.
i purchased a Predator custom grind cam off ebay little while back and installed it in my 1970 400 bbc. Specs on sheet show duration at .050 intake 234 exhaust 244. lobe lift is int .325, exh .340 lobe sep is intake 107 exh 117 making it a 112. The bottom half of this BBC is stock with .030 oversize crown pistons and hi volume oil pump. I ported and polished the stock MOD heads and placed a match ported dual plain hi-rise on top. Added over size push rods and guides with anti lockup hydro lifters and crane roller rockers and triple spring setup. Carb is undecided as I have a 800 spreadbore holly or the 850 mech double pumper to play with. I havent cranked this motor yet as I want to check clearances with this big lift. My question would be is this a fast idle cam as I am running a TH400 with stock converter. This is a weekend warrior not a daily and its going into my long term project a 71 AMC AMX. I will be changing the rearend to a 4 link with 456 ratio to start with. Long tube headers are in place also. TY
forgot to mention, the pistons are the stock crown 10.25. I placed a medium cam and headers on this motor when it was bone stock and it took it well. Motor came outta a 1970 CST 10 chevy truck that was ordered from dealer to pull a camper.
Stock 351w. I'm wanting around 400 hp at the flywheel. What do I need? Heads cam enough?
Just a cam.
LS swap
well now you like questions i have many i have a 92 ford f-150 mass air converted 5.0 5 speed i have changed the rear end form a 3.08 open diff to a 3.55 trac loc it has a stock bottom end 86 5.0 ho stock double roller timing set a frpp (ford racing performance parts) b303 cam stock e7te heads and stock truck intake with a 1" spacer stock throttle body what heads would you recomend if i was to take my other block and rebuild it to a 331 same cam and mustang intake to suite the rpm needs of cam
When he's talking about an extremely large cam and says it will require much more maintenance at 4:11, what exactly does he mean? Also at what point is it typically not even worth the money to install a larger cam (obviously this depends on the individual, but say you have sbc with like 200 duration and 116 lsa. When when one typically notice a change in power/drivability assuming they already headers and exhaust)? Hope this makes sense. Thanks
Christian Sharron,
Most times “extremely large” cams are solid lifter cams used for racing. Solid lifter cams require valve adjustments and in a race applications can be hard on valve springs, requiring replacement after a certain amount of races. This would be considered more maintenance. As for “when does a cam change make a difference”, that really depends on the OE cam spec to start with. Give us a call and we can help you determine upgrades for your vehicle. 1-330-630-0240. Thanks for watching!
Summit: so what are you looking to achieve from your camshaft?
Me: makes chopping sounds into the phone
Cranes cam 274. 218/218 274/274 450 lift 106lsa good vacuum for power breaks good low end power good choppy idle
We apologize we did not get back to you sooner. You do have several questions and we would be happy to help. Due to the complexity, you would be better off giving our tech department a call at 1-330-630-0240. Thanks for watching!
Whats the best cam i can put into a stock vortec 305 engine .. only got intake and headers and im sprayin 100 shots
Hi guys. I own a carburetted car, with 1556 cc engine, an old Dacia. She has 9.25:1 compression ratio, 72 hp/ 5000 rpm. 260 degrees duration camshaft with 5mm lift. One double barrel vertical carb. 3.77 final gear ratio. I bought a camshaft from an old guy, used to race his car back in the days. This one has 320 degrees duration with 6mm lift. Bought a polished head, polished valves, polished and slightly bigger intake than stock, polished exhaust. I'm not sure if I messured correct but I think the compression ratio will be 10.5:1. I will use two double barrel horizontal carbs, maybe Dellorto's (not sure what size I need ), build snakes exhaust and straight pipe to the back. I'll use a gearbox with 4,125 final ratio. The car is 900 kg weight. I will use it to have fun, to race it throu the corners and fast accelerations in beetween. I'll use it as a "weekend" car. What dimensions of carbs I should use and what compression ratio?
It's a str8t 4 cylinder.
I am thinking about doing a custom grind cam for my M6 ls3 Camaro doing 224/231 with a 117 lsa. Don’t want a real choppy idle just looking for a little more get up
I want to build a flat crank turbo charged 340 for a trans-am application. I looking to make most of the poswer in the higher rpm range. I need more information about this. Where should i look for this data for this application before i begin to build ?
I’m looking to camshaft my car but I want to prepare it for the horsepowers it’s going to be getting after the camshaft. What are some things you would recommend me to install on it before the camshaft? I also need help picking which camshaft I would Install. I’m looking for more horsepower. I have a 2011 mustang 5.0. I really hope you could help.
Mild build 350 in my future for my '93 K1500 after I get the trans rebuilt. Aftermarket Vortec heads, roller lifters and maybe rockers as well, depends on $ when the time comes. I am thinking along the lines of an RV cam. I had great performance with the one I had in my '69 elCamino. Obviously there is a pretty big difference between the 2, 700R4 vs 350 turbo, 3.54 gears vs 3.08s, 4x4 vs Rwd and probably 1000lbs, but I want that same kind of usable power. Yes I will be running headers but I kind like my 3" single exhaust with the old school glasspack the way it is. Thoughts?
I have a stock 1955 Chevy, 2 door, post. I removed it's factory 235, six and 2 speed power glide. I purchased a stock 5.3 vortec out of a '06 truck with a 4L60e transmission, a 2 wheel drive. All the hang on components are there, CPU, wiring, power steering, power brake pump, A/C pump. It has 60,000 miles. I know I will be going to side motor mounts. I will need to flash the CPU. I will need radiator, hoses, cross member for the transmission, and system to make it shift from the column. And a few other things that you may know more about. What does Summit have to help me complete the transformation?
Thank you
Terry
Hi Terry, Can you give us a all? 1-800-230-3030. We look forward to hearing from you.
Do the summit circle track cams actually last? Im torn between tje ct109, ct102, or an isky 201549
Which of these two cams does more hp and ft / lbs? Lunati # 10120101. Duration @ 050 214/224. Max lift 443/465. Advertised duration 280/290. Lobe separatio 112. intake centerline 107. vs GM cam (# 24502476). Duration @ 050 212 // 222. Max lift 435/460. Advertised duratio 320 / 324.lobe separatio 112.5 intake centerline 109. thanking you for your response.
I'm about to get my hands on a new 2015 Tundra 5.7L. Going to do the same custom exhaust setup I did on my 2006 Tundra and upgrade the intake. Looking for a performance tuner (unichip or bullydog whichever is best) and I would like to know where I can get some performance heads/camshaft...? This will be a daily driver / sometimes track.
My car has a 373 posi but has a tired old 350 that’s stock and want to freshen it up and put a cam in it . I’m not worried about top speed , just want hard launches and to let the rear tires smoke a little at a stop sign . Trying to learn about cams but still confused . Any recommendations for what cam size would be good with my rear end?
Thank you for watching. We would need some additional information from you. What vehicle, what transmission, if an automatic what torque converter, are you willing to change valve springs, etc. Can you give us a call or go to our chat option to talk to a rep? That way we can get the information needed to answer this question. 1-800-230-3030
I have a 2007 Chevy Monte Carlo SS. What needs to be done to the car in order for a Camshaft to work compatibly?
Calvin Burleson,
Due to the fact that you have a front drive vehicle with a transverse mounted motor, of course the motor would have to be removed from the car. Once mounted to an engine stand the motor would be disassembled to the point the camshaft can be slid out of the motor and replaced with the upgraded cam. New matching valve springs would have to be installed on the cylinder heads and programming installed in the PCM.
Cam swaps are not as easy or inexpensive as they used to be!
Ok thanks
I have and c5 z06 2002 with 10 000
Km will it be better putting a procharge do I need to change the camshaft or I should just change the cam and head &valve ??
Thanks I'm Danny
2002 Camaro SS, manual. Will soon be doing pacesetter long tube headers, hooker black heart true duals. I wanna keep the stock LS1 heads what would you suggest I want that muscle car lope and decent power gains. It's my daily driver as well.
Does displacement of a motor affect the selection of the cam if every thing is the same like compression, intake, exhaust, transmission, rearend ratio, and car weight?
Thanks in advance.
Nicholas Pederson , Yes, a mid-range streetable cam that you may choose for a 400 cid small block would actually be considered a large cam in a 283 cid small block. Feel free to give us a call on the tech line and we can assist you in choosing the correct camshaft for your application. 1-330-630-0240.
Would you say that stock performance could be increased by getting a moderately more aggressive cams for a mostly stock (has long tube headers, high flow cats, and race mufflers) 96 LT4 corvette? Or would you say that there wouldn't be much of a difference from the stock cams?
+cptmiche,
What we have to consider here is that your LT4 is a factory modified, high performance version of an LT1 of that same year. You already have an upgraded cam, rocker arms, intake manifold and cylinder heads over the average LT1 guy. To upgrade further might mean things like a stroker kit, different heads or maybe some nitrous or a supercharger. Any way you look at it, you are going to have to do some serious tuning inside that computer. You may want to line that person up first before jumping in!
what would you recommend for a 3.8L V6, auto, stock drivetrain, 20x8 wheels and just near stock motor
I have a 2004 ford f150 XLT heritige with a 4.2 OHC V6, 5 speed Transmission with 3.55LS gears and I wanted to add a RV mild cam without having to change my liifters, springs and torque convertor. its my daily driver
The advice that he gave with regards to the '76 Corvette and installing a camshaft with a 106* or 108* lobe separation angle won't work any of the vacuum accessories is false. I had a custom ground solid/mechanical camshaft from Iskenderian Racing Cams that specs out at 272* int./278*exh. @ .020" (lash) 240*/246*@ .050" ground on a 108* LSA, 104* ICL. Even though I took the pro-active approach and installed auxiliary vacuum canister, my power brakes and lights all work as normal. I adjusted the advance curve in the distributor, 20* initial with 18* in the 'dizzy' for a total of 38* all in by 2800rpm. As well as increased the curb idle to 925 rpm, it starts nice, shuts down nicely as well and runs great. I loves the nasty idle my 454" (over-bored to 460" cid) has and it has tremendous throttle response and an excellent power band from 2,400 to 6,400 rpm. The cylinder pressure test (hot) measured average of 180 psi. Lowest was 178#, highest was 181# Great for 92 octane fuel. Go with Iskenderian, made in the USA!
Yes, now bump your duration up to around 295-305 and watch your vacuum fall off to 5 psi.
@@donrutter6765 since when is vacuum measured in psi?
ON a thumper cam what causes that distinctive thump? The height of the lobe (if so; which one intake or exhaust?) or is it the duration of the cam lobe?
Hi John Kerns,
According to Comp Cams; It’s a mixture of early exhaust valve opening with long exhaust duration and a great amount of intake and exhaust overlap. The height of the lobe equates to lift and the duration is what is keep the valve open.
ok thanx; I was just wandering.
Which cam would be best for me. I have a 305 that I'll be putting some 350 heads on . Plus I will be adding an Edelbrock carb and intake. So I would like to know which would be best for my build...
Hi TQ,
It will all depend on what transmission you are using, what torque convertor if it’s an automatic, what vehicle, what gear ratio, etc. Please give us a call or email us with the information. We would be happy to help! help.summitracing.com/app/contactus
Biggest cam to use on my 74 sbc 350 1103 ? Would i need new valve springs
What would you recommend for a 2011 Dodge Charger R/T 5.7L V8 RWD?
Not much mods, just mopar air intake & Flow Master exhaust system.
Zeyad Hassanin,
Can you give our tech line a call? 1-330-630-0240. You have a few options available to you. Thanks for watching!
You still own the 11’?
I have an 83 delta 88 it's bone stock with a set of 24 In wheels its for my son's birthday just a toy but I'm looking for that sound and maybe spin a tire or two any ideas on a good cam recommendation
Thank you for watching! Please let us know if you have any questions :)
got a question for u my brother....i got 1990 k5 blazer 5.7 just got the enging rebuild still have the swirl port heads on it and its pretty mush stock i have high perfomace intake im eliminating the computing trying to make my mine up if im going to go with a carb or some efi sniper..i have 700r4 trans and 4.10 gears and up graded my torque convert to a 2000 to 2400 stall ..it has a up grade cam in it howard cams ratter 188005-09 lift .525/530 and duration .050 ; 227/235 centerline 103 i want to no is that a good cam to go with them swirl port heads and would i be able to hear the cam..i dont no to mush about cams..i no the vortec or aluminum heads would have been better but the engine was already build already..i do have headers 3 inche pipes all the way back
hey will lucas help with wear any? and also can you mix zinc with lucas
I got a 2014 chevy Silverado Z71, I got long tube headers, cat back exhaust and K&N air filter. It's my daily driver but I do like race on highway, wondering what stage I should go for And what else I should get before installing it?
If your truck has both VVT and AFM a good truck cam option would be www.summitracing.com/parts/cca-689-421-13 You will also need to upgrade the valve springs and have the ECU custom tuned.
Hey, Pontiac GTO from 2005 - 2006 manual, I would like daily usage and a great sound, the horsepower gain is not super important, just the sound and drivability. The car is 100% stock. LS2 ofcourse. I would like to change to full exhaust with headers also. What cams would you suggest and what supportive mods would you add? Thanks // Acke
Hi mrackelito1,
First of all, with the mods you’re suggesting, it would be best to find someone you can have retune the computer once the mods are made. As far as the cam you’re looking for, the Comp Thumper cam (54-600-11) with matching valve spring kit would be great. There are a lot of choices when it comes to full length headers and exhaust kits. Our website can help you there or give us a call. 1-330-630-0240 www.summitracing.com/search/product-line/comp-cams-thumpr-hydraulic-roller-camshafts
What’s the best cam for 1979 Camaro
just wondering if there is a stock cam that sounds like a big cam at idle .
tighten up duration with a little more lift not much tho. Check your local parts store catalogs and read cam descriptions. My first cam swap I used a "towing cam" and it sounded great with a lot more bottom end torque.
Old GM LT-1 cam sounded pretty rude. L-79 350hp 327 cam sounded pretty mean also.
LiquiMoly works great after breakin.. use ZDDP during breakin then at 6000 miles you can use the MOS2... I use it in my Vette, Lexus, Jeep and harley
If I use a solid roller cam at .700/.714 lift 308/316 duration how often would I have to set valve lash if I drive the car once-twice a week in the spring/summer time
Every time. A hydraulic roller will only lose you around 30 hp. Now if you take a flat tappet solid lifter cam, you will need an additional 10-12 degrees duration in the flat tappet to equal the hp of the solid roller. Problem is, once you get up over .650 you cant get flat tappet solids anymore.
@@donrutter6765 because I've heard that solid rollers dont really need to have anything adjusted, it's just rougher in traffic, but I've also heard you constantly have to adjust valve lash with a solid roller
@@donrutter6765 so your tellin me every time I take it out I have to adjust valve lash???
I'm putting together a Chevy 5.3ls engine and I've noticed they have horrible low end torque, what is a good cam spec to have that good off the line acceleration?
TruckPassionPhotography, While changing a camshaft may be an avenue to examine, it would be better to consider other more important things first such as tire size and gear ratio combinations as well as torque converter selection. Give us a call and we can help you match it all up. 1-330-630-0240.
They have huge cc cathedral intake runners, although thats good for high rpm power, the large runners rob you of velocity which means loss of low end torque. That means the motors make good race builds if you are going to leave the line at say 3500 rpm on a transbrake.
Hello, I have a question.
I’m looking for a camshaft Street use (daily ) I swap 4 x 4 weight 5,452 lb with
* L92 engine 2012
* 6L80
* LS3/LSA Stage 3 231/239 115 LSA Supercharged Camshaft
* 3-Bolt Cam
* pushrod 7.350"
* .660" Dual Spring Kit
* Rocker Arms 1.72 Ratio.
* Manley Intake & Exhaust Valves
* Ls7 Lifters
* Ls9 Head Gasket
* Ls3 CNC Cylinder Head
* Circle D torque converter 3000 - 3200 rpm
* Diff gear 4.63
I would like to change the camshaft since I’m not gonna be running any supercharge for now.
Thank you for your question. Yes, the Supercharger cam is going to be down a lot of torque in the midrange. You have a heavy vehicle, but on the plus side is you have gear and converter. If this was a “Hot Rod” truck that was used sparingly, the Pro LS SUM-8714 stage 4 truck cam would be a great choice. It’s makes a ton of midrange and top end, but for daily use we’d step it back down just a bit more to the Stage 3 truck cam part number SUM-8713. This is a 222/231 112 +5. You may want to go with a 7.400 pushrod, but other than that…it’s a great match with the other parts you have. The advance ground into that cam is going to be making strong power at 3000 on up through 6500 and you’re going to love it.
www.summitracing.com/search?SortBy=BestKeywordMatch&SortOrder=Ascending&keyword=summit%20racing%20pro%20ls%20cam
Moving a big hippo is not easy thing .. with this cam I’m making 400whp .. I used to have 3.5 gear ratio about a week back I changed it to 4.63 size ... I’m loving the big improvement. The camshaft that you mention do you think will give more horsepower ?
There is a good chance it could making more power, but what we would expect is it would build a lot more midrange and pull the power peak back about 400 rpm earlier. This will be where the better acceleration comes would come in.
Excellent, thanks for the advice
im planning on getting an 1103 cam for my 305 chevy. its bone stock, except for long tube headers, aluminum intake, holley 2bbl 500 cfm carb and ignition, already has a small cam. 190, 210 duration, lifters and timing chain. running stock converter and 2.73 hgwy gears. will it work on the car?
SebRodz. SebRodz,
A stock converter and 2.73 gear are not ideal for the longer duration of the 1103 cam. Give us a call and we can go over some options with you. 1-330-630-0240.
We apologize about any issues you faced, mellonsed. Have you contacted our customer service team yet? If not, please give us a call at 1-800-230-3030, or use our email or live chat options found on our website under the customer service tab and we’ll be able to best assist.
If you have already contacted us, please provide your customer or invoice number and we’ll promptly look into this for you. Thank you!
when in doubt, use less duration. keep LSA on point for engine spec.
Do you have any cam for Ford Duratec 2.5 i4? I'm looking for more low-end to mid power which means accelerations.
Unfortunately, none of the manufacturers that we carry offer them for that engine. I am not sure where you will be able to find them. You might try doing a Google search for them.
I have a 1990 tbi 350 1500 suburban. My friend has a cam out of a 1990 3500 camper. Is this cam hotter than my stock one? And would the swap be worth it? What would be the best cam, rockers for my engine. Not looking to pull the motor at all if possible. I've heard a simple set of 160 rockers will wake it up. Please help!
i got a ford 390 fe with stock heads flat tap lifters stock converter in a1965 galaxie with 4 bar carb what i need for street
I recommend the COMP Cams Xtreme Energy cam kit, CCA-K33-234-4. That cam will work with the stock torque converter, have strong low end torque and mid-range power, and will include everything you need to replace in the valvetrain.
What about 204 street cam in a carb 88 firebird it has a 305 ho in it been board 40 high rise intake 600 elderdblock carb long tube headers how much power do u think it will have
When is the best time to choose my camshaft ? I have a ford f 150 2002 v8 4.6L I would want to do a $500 to $400 tune exhaust done an headers with turbo can you help me ?
You guys still sale sports visors and cab visor and would it feet on a 2000 check astro
How you guys doing Summit? I know you deal with big motors and no imports but it doesn't hurt to ask, I have an 02 Maxima 3.5 6 speed all natural no force induction, and want a camshaft to help my performance mid range to top end, is there a camshaft available for that car and if so would I need any other internals and what would they be?
Jnevone DSF , Unfortunately, we do not offer cams for that car -sorry! But when changing them, make sure you also replace the valve springs so they match the lift of the new cams. You should also replace timing chains and tensioners assuming the motor has some miles on it. Of course you will also have things such as gaskets and fluids, but don’t forget that on todays vehicles (computer controlled) you will also have to have new programming for the new cams! Good luck!
Summit Racing Thank you I appreciate that,.
What's the best aggressive cam for the 2019 Dodge Charger RT?
Hi Hooch,
Can you give us a call? 1-800-230-3030. We need some additional information we would need. Cam selection can be complex.
When people say "this cam will still give you a good idle quality," what is the flip side of that? When a cam is larger and doesn't give you a good idle quality does this mean the engine wants to die at a low idle so you have to set it higher?
Engine vacuum. Lumpy lope at idle is because of a smaller lobe seperation angle (108+/-) and that spec does not give you a lot of vacuum at all, so your vacuum assisted brakes are no longer vacuum assisted, which limits brake power immensely.
Hi i have a 76 gmc sierra grande with a 350 sbc with a edelbrock 4 barrell carb with stock intake and do you think a rv cam would work
Ethyn Stuart ,
Yes, RV cams are great for trucks; especially those hauling or towing. There are other components to consider while doing this swap out such as a timing chain set, valve springs and gaskets. Give us a call and we can help you pick it all out properly. 1-330-630-0240. Thanks for watching!
+Summit Racing turns out the gmc i commented about a year ago, already hsd a rv cam
need some help, I have cam but I don't know what Brand it is and all that is on the cam for #s is te-24721 any thoughts?
i have an m3 s54 3,2 engine and i am looking for upgrading my cams this is a street car and i am looking for the best performance...
the oem are 260 intake and exhaust
schrick suggests 288 intake 280 exhaust with the same lift 12,5mm
what if i put a 288 intake and exhaust with 12,5mm lift ??
why differentiate intake from exhaust by 8 degrees??
what are the pros and cons
thank you in advance
Hi Stratos,
Manipulating the camshaft specs on either the intake or exhaust side is done many times to compensate for poor flow characteristics of intake or exhaust systems.
I have an 88 jeep comanche 4.0litre I6 would u be able to recommend a camshaft that will best fit my truck
+pirotechnico323 ,
Yes, please give us a call with the rest of the particulars such as gear ratio and tire size, transmission type etc. 1-330-630-0240.
my husband has a 4.8 motor 2008 gmc sierra crew cab with long tube headers and a air in take with 410 short gear differantal had a 325 but wants a cam but whish one should he get
Stephanie Garza,
Can you give our tech department a call? We need some additional information from you. 1-330-630-0240. We look forward to your call. Thanks for watching!
I got a 1994 chevy silverado K1500 extended cab i already got the flow master exhaust now u want the cam sound. can i get one that can still turn heads without doing so much more to the engine but that can still sound good...
Will a LS2 cam fit and work properly in my 2007 Chevy Monte Carlo SS 5.3L?
Calvin Burleson , Physically the cam will fit and work but, you will also have to change the timing chain set (3 bolt), delete the DOD and have the computer retuned. It would also be suggested to upgrade the valve springs to match the cam and upgrade the trunnion bearings in your rocker arms due to the increase in lift, spring pressure and RPM. Another suggestion would be a better intake manifold and throttle body for all this new airflow. This will be a big undertaking as the motor must come out of the car in order to slide the camshaft out!
I think u may have a 4.8 in a M.C. ss.
hi summit im looking for the most hp out of a cam for my 69 chevy c10 power brakes power steering. 12 bolt posi.20x10 rear wheels hope you can guide me to the right one. i have a chevy 350 crate 4 bolt main headers edelbrock proformer intake 625 demon carb hei aluminum 185cc promaxx cylinder heads & a 300hp crane cam .everything els stock
Hi Jason,
We need some additional information from you. Can you please give our tech line a call? 1-330-630-0240. Thanks!
This question would be best answered by our tech department. They will have several questions for you. Can you give them a call at 1-330-630-0240? Thank you for watching!
Ok I'm building a 350 for my 1984 k10 it's got headers Holly carb after market intake ...my question is I'd like to have a loby choppy idle but I also want to drive it every day it's already got a 1800-2000 stall in it what kind of cam do you recommend I know I can use a vacuum reservoir for my power brakes so that wouldn't be an issue. Any help would be appreciated.. looking for bottom end torque.. but I also want a choppy idle.
can i request a truck pull video? like street stock era. how can i get the most rpms out of my motor?
I drive my 99 trans am maybe 3 4 times a week its not a daily driver...I have full exhaust pacsetters LT headers ORY SLP cat back system loudmouth 1. Whats a good cam for this build Im also going with ls6 intake Patriot or precision heads. This is the cam specs I was looking at Cam, Sinister 230/236 .591"/.601" 112 but whats your recommendation?
i have a 2003 2.0l dual cam zetec ford focus with air intake and dual ground spark plugs with automatic transmission wich its the best for my car???
Hi Jan,
Can you please give our tech line a call? 1-330-630-0240. We need some additional information from you. Thanks for watching!