HOW TO: TURBO LS CAMS. TRUCK NORRIS VS SLOPPY STAGE 2-IT'S ON! WHICH ONE IS BETTER WITH BOOST?
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- Опубликовано: 5 сен 2024
- HOW WELL DOES THE TRUCK NORRIS CAM WORK WITH BOOST? IS THE TRUCK NORRIS CAM BETTER THAN THE SLOPPY STAGE 2? DOES THE SLOPPY STAGE 2 CAM MAKE GOOD LOW SPEED TORQUE? CAN I RUN A TRUCK NORRIS CAM WITH A TURBO? IS EVERY CAM A TURBO CAM? DOES LOW-SPEED TORQUE IMPROVE TURBO RESPONSE? CHECK OUT THIS VIDEO WHERE I COMPARED THE TRUCK NORRIS CAM FROM BRIAN TOOLEY RACING TO THE SLOPPY STAGE 2. THE CAMS WERE COMPARED BOTH NA AND WITH A SINGLE S475 (T6) TURBO FROM SUMMIT RACING. THE GOAL WAS TO MEASURE THE POWER DIFFERENCES AND CHANGE IN BOOST RESPONSE OFFERED BY THE TWO DIFFERENT CAM PROFILES.
This is test is absolute gold. Thank you!
WOW The Truck Norris cam did pretty good. Very impressed.
thank you for answering my stupid questions with exact testing of the cam I was interested in. thank you so much I am ordering cam right after I leave this comment. Your testing and videos have more influence on people than you know. Once again thank you so much.
Glad I could help!
@@richardholdener1727Richard would a 4.8 with truck Norris cam ls6 intake and 7665 .96 turbo be a good combo? Its for a drift car that weight 2400-2600 lbs
Truck Norris going on the 6.0 2009 2500 HD extended cab 8ft tomorrow. Needed the torque for such a heavy rig and what we tow. Plus real life use below 3,000.Thanks you so much,
Whatever you do DONT BUY THE WRONG CAM. I made that mistake 25 years ago on a 350 and I was miserable. Im SO grateful for this channel and being able to see what the good stuff is.
What would you describe as the wrong cam?
@@cars_and_stuff One thats way to big is the wrong cam. I didn't do my homework and lost a shitload of bottom end. I was a kid and did what kids do.
Thanks! I selected a smaller cam for my engine I'm currently building. 219/225 in a LS1. I had to use a lot of restraint to not pick the bigger 230/240 cams
Love that shirt, hahaha! That's great! Excellent to see this. You answered my question about this on the last live chat - the reason I was asking was because I had read a 20+ year old article that was saying overlap was terrible for boost, and with the Truck Norris at 107 LSA, that had me worried. But like you said, and exactly like this here video showed, boost just does what the cam does N/A, only with bigger numbers. Awesome!! Thanks Richard! 👍🍻
the lsa doesn't determine overlap-this is a mild cam
@@richardholdener1727 Thanks for that clarification. I had misunderstood the effect of LSA in a mild cam. Makes sense now that I slow down and think about it. 👍
@@SmittySmithsonite you had the concept correct, but It doesn’t bleed of boost or any of the other commonly repeated inaccurate “facts.”
How does it affect performance?
Combined with Duration, the LSA determines Valve Overlap. This overlap has a significant impact on Engine Vacuum and idle quality.
Camshafts with a "tight" LSA (106° - 109°) will usually have more overlap.
Camshafts with a "wide" LSA (110° - 118°) will have less overlap.
That’s from an article about cam lobe separation angle on Sunmit racing’s website.
@@Mattvardaman A lot of these rules of thumb of what you want for lobe separation while kind of ignoring the actual duration stem from older engines when they had flat tappets. Because the cam ramp angles were not as steep, the "rules" were a lot easier to go by as you would always have overlap with tighter lobe separation angles because you could only ramp down one valve and ramp up the other valve so fast.
So fast forward 50 years away from that old technology to what we have today and we are snapping the valves open and closed so much faster that you can have a tighter lobe separation angle with more duration on the valve and still have less overlap.
We live in good times.
@@TravisFabel I swapped so many hydraulic flat tappet cams in gen 1 sbc engines that I lost count. I’ve had a few modern LS engines, and I’ve done a small handful of cam swaps on truck motors. The power from my current truck’s 5.3 with a stage one pro ls truck cam, long tube headers, support mods, and the tune dialed in with the wideband is outstanding! I’m looking forward to feeling the power of a turbo on the 5.3 in the next year.
I will say that the cam technology is vastly improved along with cylinder head design/flow. With a modern roller cam My 5.3 with a small duration camshaft 205/217 @ .050” .500/.500 lift 112+2 lsa has more “idle lope” than my 355 sbc with a 224/234 .456/.488 lift 112lsa flat tappet cam. The 5.3 makes more power too. The modern performance age is awesome! I support anyone trying to make some horsepower.
Rebuilding my gen 4 5.3l block rite now, had to go with the ss2 bc of price point, replacing everything so spent the cash on parts that aren't as easily done later. Gen 3 706 heads,pac 1218s, gen 4 intake with flex fuel injectors, all new bearings and rings. Engine has flat tops in it factory so hoping for a reliable lil ripper. The ss2 I put in my 6l (decked 243s, and gen 4 intake) was very impressive, hope to have the same with the 5.3, just can't beat the power gain from the ss2 , especially since it's half the price of about every other cam out there
Love to see them harbor freight color coded sockets on the table!!
only the best
I vote for the Truck Norris cam, with all the extra torque down low up to 5200 your vehicle will pull harder and be faster than the Sloppy with only a relatively small increase in power over the next 1200 rpm or so. I'm currently running a Texas Speed High lift Stage 2 cam a 5.3 in my '68 C10, IMHO similar to the Norris cam and I love the response up to my red line of 6200.
So would a Sloppy Best split the lines of these two cams seeing as it’s sized more or less between them? Sacrifice some bottom end compared to the TN, but maybe not as much as the SS2?
Now you are getting it
@@richardholdener1727 glad I got the best cam. Can’t wait to install it. Gotta get the chop!
One of your best carguy brainfood videos Richard, thanks!!
Personally I blame squirrels
This was funny the first 1,000 times. Now it is just pathetic.
@@MrZX1206 squirrel sympathizer.
@@MrZX1206 😃👉🏻🐿🐿🐿✅
My squirrel's name is Digger. She likes to dig! That's her in my profile picture🐿️
Richard a lot like the success using OEM GSR cam profile in turbo application on the Hondas back in the day…
THE TYPE R MADE MORE
SS2 cam makes managing traction on a 10" tire with little to no prep much easier, snubbing off some bottom end torque can be a good thing, and you still have better topend power.
Edit: just an opinion.
one of these is not a race cam, pick your cam based on usage and rpm
I'd like to see a truck norris 5.3 dyno of the difference between the 3 bolt truck intake and throttle body vs. a bigger 4 bolt tb and TBSS intake (I know it's a good difference one a stock cam) and maybe a performer RPM & carb for S&G
the tbss vs truck has been tested many times
Richard, how much more power do you think the tbss would make on this combo with the ss2 then?
@@MrLs1racer the tbss intake is going to give about the same additional power increase ni matter what can you use.
Issue with boost response on my turbo LS setups has always been traction. You have to limit the speed at which the power comes on. You must regulate the power at this point progressively with timing and/or boost control to get a tire to plant on a street. And I'm talking about a drag radial or slick. With a standard radial tire having instant response it useless. Having boost at 3k or below is useless as well. Much more practical to have a larger turbo and cam that brings in the power later.
For performance cars, absolutely. But for truck engines that happen to still be in trucks that tow things, a Norris cam and small turbo like an S366 will do a much better job around town and through mountains. A successful LS build plan depends heavily on application and purpose.
the great thing about information is you get to chose to do with it what you want
Electronic boost control can be your friend. Get one where you can program in multiple boost control curves.
@@boost1728 Just keep the stock camshaft for towing, It makes better power 3000 RPM and lower.
That’s if your racing but not if you want a daily
Gotta do more supercharger comparisons. Preferably an LSA type supercharger for us truck guys looking for more work/tow/hauling torque.
LOTS OF BLOWER VIDS UP
@@richardholdener1727 yes but not low end performance specific. Its all top end power. Lots of guys have these 6.0 truck motors in thier trucks formwork and hauling. I don't remember seeing a video for max low end torque with an LSA type supercharger.
Watching "Fastest cars" right now! I thought I recognized you!!!! I was like "hey I know that face"
IT WAS FUN
Great video! I Have been waiting for this. Also Richard we would love to see you test the two new Summit Racing Torkinator LS cams 🙏🙏🙏🙏🙏😍
The new Test should be Truck Norris vs Summit 8720 cam. Honestly these cams are sisters!
Summit just came out with the 8728R1 torkinator cam. Very similar. Hopefully he does a comparison at some point yet!
Hope we see more l33 testing!!!
Doing my first build when I get home from deployment. Recently bought my dads old 1996 impala ss. I just bought a used LQ9 still all factory. And bought some 823 heads but watching your videos got me thinking about TF heads. And I'm lost on what cam to get. I'm not doing Nos or turbo. Can you give some advice on where to start with this build. Thanks for all your great videos and service.
use the 823 heads if you have them and check out the many 6.0l cam videos-choose the power curve you want (a Truck Norris cam for a milder application, a Comp 54-469-11 if you want lots of power
Man that vtec cross over at about the 1:00 mark is no joke lol
I bet the stock cam would not offer the same or better boost response as the truck Norris cam…
Just order it.. never been so happy to blow $1000 truck Norris cam $354 , top end kit $391 and some other goodies .. 2 to 3 weeks out .. and use I can wait ..
Richard, I’ve been following most of your LS videos for years and love them! Excellent work. Maybe I missed it but have you ever changed the cam timing. In theory could the timing in the sloppy cam be slightly adjusted to more closely match the truck norris and produce more low end torque? I assume more expensive parts are needed to do this so not much experimentation has been done on you channel or I’ve just missed it. Maybe an idea for a future test.
IT TAKES MORE THAN ADVANCING OR RETARDING THE CAM TMING TO MAKE THE SS2 CAM DO WHAT THE TN CAM DOES OR VICE VERSA
Useful info, quick and to the point, thank you!
Be nice to see a Yote ran N/A with a few different cams for us Ford guys. Especially be interesting if they are worth the money or if you're just throwing it away.$300 LS cam shootout is nice but is only $300 where as buying the wrong Coyote cams will set you back well over 1000 bucks
There are coyote cams out there that make no power difference be careful yolo says to use comp cam stage 3 NA cams and he works for lund so I would go with those and get tuned by lund as well or get ahold of lund and ask them what they recommend for your year of coyote because each generation is a little different
I have tested a few Coyote cams (gen 1), they definitely added power
Excellent video. You probably already have a video somewhere on this but now I'm curious about the differences between roots blower and turbo boost curves.
those vids are up-check out the modular ford video where I ran every form of forced induction
@@richardholdener1727 I found the video, ruclips.net/video/h4OHdC3nAFk/видео.html That is a jewel of info there. Thanks
Truck norris, works better for the street, that's where I drive.
I sure wish you had run the stock cam with boost so we could have seen how much more torque down low it made than the Truck Norris cam. That's where a truck pulling a trailer operates!!
Well the stage 2 truck cam make more power down low than a stock cam. It works the same way for boost applications so you’ll get more power with that aftermarket mild cam with boost. Stock cams from Chevy are pretty wimpy out the box if you compare them to what ford or dodge uses for the same displacement
I've watched you enuff that I already know the conclusion, but I'm like a kid circling what he wants Santa to bring him in Montgomery Ward catalog, I don't have the cam or a turbo "yet" 🎶 But I've got a 6.0 and that's a start 🎵 Yes I'm gunna be a star. Any... thanks again Richard, your effort is greatly appreciated. Beats the heck out of a blind taste test ✌
So if we take that 26 lb ft Tq difference and look at what it does at the tire, it is a huge gain. So say you are running a 3000 stall converter with a turbo 400 and a 4.11 rear gear. The difference at the tire would be a gain of 661 ib ft. You have to remember you can multiply the TQ but the only way you can multiply the HP is with more RPM.
The same can be said for the higher torque of the ss2 up top? You are trying to use gear ratios to show a difference when those would be the same no matter what. The reason hp is higher is because tq is higher at the same rpm. That’s how hp is calculated by torque and rpm…
@@kyletice811 What I am trying to say is that you are better off making more Tq , than making more Hp. Because you can multiply the Tq, you cannot multiply the Hp. If it was a stick shift car and you could leave at 7000 rpm then Hp would be in your favor. But a converter car needs Tq, not Hp. Tq makes ET Hp makes MPH.
@@racerd9669 horsepower is just a calculated number based on torque and rpm. They are not separate things. If its making more hp its making more tq at that rpm. Maybe you mean low end torque is more valuable than top end torque? But that’s only the case if gearing is long and the converter stalls low. The amount of time spent at the low rpm is negligible in a race car where you should never be under 4-5k rpm anyway.
@@kyletice811 Lets be real very few people that watch these videos are building pro stock engines, they build street engines or bracket engines. So most of these engines will never see over 6000 rpm. If you study the usable power band of any engine it is very hard to make power over a 3000 rpm spreed. So a street engine making peak Tq at 5000 rpm will not have any power down low to move the car. That is why I am saying you work on TQ not HP. Try to make your peak TQ at 3000 rpm, then multiply that w gear ratio. That will accelerate the mass.
Awesome videos as always! Would love to see the truck Norris cam with a PD blower and see what you think.
it will work fine-just like lots of other cams
When you watch the first dyno pull in the video, You can see the dipstick pop up and then all of the blow by shooting out of it. LOL
because there was no breather-we put one on-all of the blow by was gone
I always see "Party Boy" dancing in his banana hammock when Richards videos first start lol
Wow. I see 200k coming 🔥
A 107 to 112 LSA ... a 212 to 228 duration ? IMO as far as NA goes this is not an apples to apples comparison ... but still a great test ...Richard did a video on LSA comparison a lil while back 108/112/120 LSA the 116 didn’t come in ... and if I remember correctly Richard was puzzled when the 108 LSA cam made the most low and midrange torque and I think the most hp but I am old so my memory might not be as good as it used to be ... so go watch it for yourself please ... I would like to see the correct LSA.test revisited with a stock 5.3 and then a 6.0 ... I like the TN cam and I think the specs are more for what any LS truck needs in NA form ... more low end torque... that 107ish LSA increases cylinder pressure (dynamic compression) and helps increase torque ... yes it has a grumpy idle because of that LSA but it works ...Richard I’ve heard you say many times who drives at WOT at 2K-3K rpm .. you press the pedal it downshifts and is above 3k almost instantly and out of that extra torque range .. or you have a 3600 rpm stall and flashes to 4K rpm and you’re out of the rpm range again ... I’m not saying the SS2 is better but I am saying “PICK THE RIGHT CAM FOR YOUR APPLICATION “ ... a 5500lb truck won’t run like you think it should with a 228 and above duration cam with a 112-115 LSA without all the “extras to go with it “... it’ll idle nasty but run like a 🐌 ... now be careful everyone some cam “companies” /retailers will only try to sell you what they have in stock even if they know the DURATION /LSA doesn’t match your combo or maybe they don’t know it doesn’t match IDK but I see a lot of over cammed pickups thru the shop ... but it sounds nasty at idle... now if a nasty idle is all you want then go for it by all means ... someone tell me how sweet it is to outrun your race buddy with the same truck he has and he knows you have a smaller cam ... Great work Richard .. I appreciate the fact that you have blown so many “old wives tales” from the hot rod world out of the water ... btw I’ll buy one of the cams for the LSA test if you revisit it again .. thanks
Great Video Richard! How about showing us the higher boost levels? Are you trying to tease us? ;-)
we already know what adding more boost does
@@richardholdener1727 You’re right!
down low the bigger cam sucks id rather have the Truck Norris cam i can turn the boost up to make the power numbers
I was thinking the same. Truck Norris wakes up the turbo sooner. The turbo can carry the top end.
I will keep the sloppy stage two never race below 3 grand so it's ez an the money help fund something else
Great testing! Wonder if you could go one step further and test the turbo theory. Smaller cam shaft with the same turbo and actually find the limit of the combination. Basically putting the theory to the test. I've heard many say the theory but haven't ever seen the proof. I like seeing the railroad tracks, but let's see a turbo get maxed out. Everytime I've been to a dyno session we found all the power.
finding all the power is not a test-we already know what boost does
@@richardholdener1727 have you done a test between the Truck Norris cam and the Truck Norris NSR cam for boost? It would be nice to see what power is lost from the lack of lift on the NSR can down low with boost.
I have both cams in different rigs and the TC has way more bottom end grunt than the SS2
TN?
@@richardholdener1727 typo, yes the Truck Norris
So running the truck norris cam at 1.5psi+ its gona make the same hp on top, yet be more responsive in the low end?
Yes
Or run a stock cam +5psi and make more than the Norris…
Or run variable cam timing, gain a ton more horsepower/torque down low, And a bit more on top....
Now it time to add some ring gap and turn that little knob and shoot for the moon. Chop chop Richard! We want boost! Lol!
If only we already knew what more boost does!
@@richardholdener1727 oh yeah we know. I kinda wanna see that Truck Norris cam with about 15 psi... 800hp maybe? Lol. The Richie boost math says so! Lol!
Truck Norris for the WIN!!!!! Once sloppy named a cam "Best" cam. I black balled installing any sloppy products.
But didn’t they jokingly name it because people always asked “what’s the best cam?”
ask where they go the name
@@jakewise2033 Yup but sick of hearing people asking for it. Alot of people take that name seriously. And above is my response. Their on the list with decaps and fast injectors for me
@@heavyschevys7333 ha gay
I am running an L33 with the truck norris and a 7875 in my nova. How much ignition timing under boost were you running in this video?
we ran 20 degrees with e85 at the hp peak
@@richardholdener1727 thanks!
Been reading about Whipple gen 5 supercharger for LS being very efficientespecially at low speed. Might make a good comparison.
Ok, so can some one help me out here to understand it a bit better. I got 98 c1500 extended cab, which are pretty heavy. From my understanding the truck Norris is a better option do to the weight of the truck and more TQ down low?
yes
@@richardholdener1727 i see 🤔
Thank you.
im thinking the bigger can an slower boost responce may help with wheel spin ?
I should have put Truck Norris in my Jimmy.
I’m installing my new 6.0 with the TN cam with 862 heads. Was kinda curious on your thoughts with a LSA supercharger with this combo?
That thing would be a low end torque monster
Need Gen 3/4 Hemi cam tests. Well more 3 than 4 :D
I have hemi cam tests up
Im curious how the sloppy stage 1 (1838) compares to the truck Norris since its a closer spec.
I just dont see a lot of info out there on the sloppy stage 1
I put the ss1 1838p cam in my 5.3 7875 silverado 1500 and I'm pleased. The specs are close to the TN cam, except 114* lsa. No test for the ss1 on Holdener's channel.
I've used it on hilly roads, with almost 2k lbs in the bed and it does the job, like a good work truck (3.73/4l80e swap w/stock converter).
It's a shame that there's not much out there on the ss1. Probably one of the "best" cams for a street 4.8 or a heavy 5.3.
Great video as always
The choice would come down to drivability....
What about running variable valve timing and seeing how much you pick up down low to get on the boost quicker?
that can help
Did i see driver side waste gate moving????🧐🧐🧐🧐🤔🤔🤔🤔
Richard I got a 4.8 single cab silverado and ordered the btr TN cam with beehive .625 springs Texas engineering headers 1 7/8’s I was wondering what else I can do for this 4.8 to get around 400whp not crank any help would be appreciated thank you!!! Love your videos.
you won't be anywhere near that number with that cam
@@richardholdener1727 what would you recommend to get to that number
Have you did a video on a stock 5.3 with a LS6 Power Max Camshaft?
WHAT IS AN LS6 POWER MAX CAM?
Is there anyway you could do this test with a centri blower at LOW BOOST please I have a feeling overlap would play a bigger role then in a turbo set up that has more back pressure.as a lot of people will not go for 1000hp
the results would be the same as a turbo-boost just adds to what is there
Kinda wanna see this test on a centrifugal blower
SAME RESULTS
Was waiting for this video lol 😆 😂
I wonder how both will work on a truck boosted ?
SAME AS THE DID HERE
@@richardholdener1727 ok guess my 4.8 is going to go boosted then thank you Richard
Ever test the Elgin 1839 vs the 1840 (SS1 vs SS2)? Or the 1839 on anything? Almost identical other than a 8 degrees less duration on intake side and 6 on exhaust, but same 112 LSA. I have both of the elgins on hand for a turbo 5.3 with a high rear gear and am leaning towards the 1839 for more low end.
pick the smaller one
I predict wider lsa = more power on boost
Can you test upgrades on a 2V 5.4l Mod?
Edit: then compare it to a modded 4V 5.4l Mod?
Boost response is better known as "time to torque". It's not just measuring wot torque or boost. Both cams have the same response above 4k
If only everyone started every driving situation above 4000 at wot!
Have you done the chopacabra cam with boost
same a TN with boost
@@richardholdener1727 ok thank you
Richard have you ever tried a dual carb set up with a turbo going to each carb ?
have not
Under turbo...the same but Everso much, moreso!
Richard, could you please help! I bough a awd sierra that had a 6.0 but now has a 5.3. It has a sloppy 2 with a 88/83 .75 afr turbo. It has no low end torque and boost dosent kick in till after 4000rpm. From what i understand i could possibly benefit from a smaller cam. For my application would you do the truck norris or sloppy best? Thanks!
YOU NEED A SMALLER CAM AND SMALLER TURBO
@@richardholdener1727 I agree completely. I didnt build the setup but it was made for a more capable 6.0. Ill do some research and find a better cam and turbo setup. Thank you for replying back!
How would this work with a positive displacement pa like a whipple????
works well
So to verify with both these cams under boost you didn’t have to change the springs ? So you ran stock springs in those 799 heads ?
both needed and had spring upgrades
Wonder how the truck Norris will do with 1.9 rockers against ss2
you just gunna jump right past 1.8 rockers?
Good work
How would the TN cam idle in a 6.0(lq9). Not really looking for a chop, just more low end torque and avg power.
It idles nasty if you don’t want to much chop stay away from it I heard it in person and it’s major lope and chop actually doesn’t sound good to me try Texas speed 216 -225 600 600 lots of down low for towing and burn outs and will make good hp and with 111 lsa it’s not to aggressive of a idle
The idle is not nasty, especially on a 6.0L, the TN is a mild cam and works well on a 6.0L
The all caps info block under your videos is hard to read. We have two different cases of letters for a reason. Aside from that, love the channel.
why are bigger letters harder to read?
@@richardholdener1727 because that's not how people are used to reading and it screws with the pattern recognition. If you need bigger letters what you need is glasses, not a capslock.
Hopefully you test the Truck Norris came in the same LY6 you last tested the SS2. On that motor, the sloppy stage 2 gained power everywhere on the curve. Which made me want that cam for an off road Jeep with a LY6. So curious how the Truck Norris will do on that combo, as they both lost power over a stock cam down low during this test.
the SS2 did not gain power everywhere-we never ran that test down at a lower engine speed-a 228-degree cam will lose torque compared to a smaller one (especially stock)
@@richardholdener1727 your right, the other cams started lower at 2500, yet the SS2 started at 3000. But did make gains start to finish. Either way, curious how the Truck Norris cam would also do in the same set up 6.0.
Has Richard ever tested the ss3 aka 1841p cam?
no he has not-mostly because it won't fit stock p-v
Which one would be better with stock 317 heads and stock truck intake manifold for a lq4?
BETTER FOR WHAT
@@richardholdener1727 horses 🐎
hay do you have anything for the gen 3 hemi thats comparable to this
I HAVE HEMI VIDS UP
An who is that person that would not get rectangul port heads then try to suck all air you can't it doesn't matter
The truck Norris cam had a 108 LSA the Sloppy stage 2 has a 112 LSA there is the difference you are seeing on bottom end . Tighten up the LSA on the Sloppy stage 2 and you'll see a big difference in the bottom end .
it's more than that
At what displacement is/are these good at? 4.8 , 5.3 , 6.0 or 6.2… or all the above.
Yes. 😎
But seriously, the biggest difference displacement makes is that more of it means more power, within the limits of the supporting parts (intake, injectors, head flow, etc). That said, with all the support pieces the same, more displacement shifts the power curve downward in the Rev range. A 6.0l will make it's torque a few hundred rpm earlier than a 5.3l.
Do remember that horsepower is based on rpm - so the later the torque peak the higher the horsepower. But if it's too late the engine feels underpowered as you wait for that torque - the old feeling of "coming into the cam".
Torque down low for street/daily drivers, top end for weekend/strip cars. 😉
the cams will work in any displacement LS
Hi Richard, I have watched a ton of your videos. I was wondering if you have ever done a test on cams with similar duration but different lift? So for example I have run the COMP NSR drift cam which is a 233/243 .554/.554 and now I am running a Summit stage 3 which is like 232/242 .612/.612. The car feels like it lost some mid range. 5.3 stock bottom N/A in a drift car. Just wondering if you have played with that and what the correlation is.
not those specific cams
@@richardholdener1727 I didn’t mean that specifically. Just giving an example of two cams that are close. I know you have tested LSA changes only. Just wondering if you have tested lift only changes s
Honestly Richard always recommends stage 1-2 truck cams for the 5.3. Anything after that it’s starts losing low end torque. Even at stage 4 it’s not even as aggressive as what you have which is like 224 intake 228 exhaust vs 232/242.
Such a big cam on a smaller motor and you’ll have no low end power
Did you ever do a Texas speed bdf cam?(chop monster)
no sir
@@richardholdener1727 maybe a future video?
Richard, how do you think they'd compare supercharged?
same
Truck norris for torque
Are these cams being used on stock rods, springs, and rockers? Just a straight cam swap?
BOTH REQUIRE SPRINGS
@@richardholdener1727 thanks for the quick reply, I knew I liked your channel for a reason. Just got a subscriber!
Can the Holley control cam advance on those engines factory equipped? I know that's often one of the first things removed along with cylinder deactivation but I think it would be VERY interesting to see what moving the cam around could do for low end toque and top end power!
no
Is the TN cam the torqueist cam u have tested?
not sure what that description means-it provided the torque curve shown
How much boost is safe for a stock cam 6.0? 9psi?
THAT IS EASY-NEEDS RING GAP
@@richardholdener1727 so stock motor will need a tear down to gap the ring for low boost?, or 7 psi is good on all stock?
What's the take away? Either get the truck norris cam and nitrous on the top end or SS2 cam and nitrous on the low end 🤔 🤣🤣🤣
The truck cam will probably help you more at a dig and on the street where the engine is at a Low RPM.
@@BoHorror consider traction being a limiting factor- some people pick their combinations in such a way to intentionally bring in power later in the RPM range so as not to blow the tires off down low. Same reason for slow boost ramps, etc on the street.
@@boost1728 consider modern rubber and all-wheel drive.
@@TravisFabel how many AWD mustangs, corvettes, trans ams, and camaros have you seen in the past 6 months? Uhhhh 0
You can disagree with the theory, but the truth is that people do take power AWAY down low in order to maintain traction in street raced cars. Like I said- boost ramps, boost by gear, timing ramps, 2nd gear leave, big converters, running low 3.XX gears instead of the old school idea of running 4.10’s in everything… low end is great for mild builds and tow rigs, but big cams do have an advantage at some power level or another
@@boost1728 yes I have traction problems 5.3 N/A, ss2 cam and 2.73 gears it just roast the tires down low lol
That graph of the SS2 is very different from a previous video you did on it. In the previous video, I was amazed at how much low end torque the SS2 had. Something amiss here.
Do you remember if it was same engine displacement?
It was on a 6.0. The video was titled “how to pick a junkyard 6.0 cam” or something like that.
Check it out.
@@jakewade7388 ok, this was a 5.3 so that may be where the inconsistency shows up
The SS2 bested the stock LQ4 6.0 camshaft down low in that previous video.
I think cubic inches make a big difference that’s why in a 6.0 sloppy all day 4.8 5.3 don’t have as much torque so they need help in that department
The truck norris cam one. Why does he act like it didnt
👍💪
Sloppy for the win as less boost more power means less chance of detonation. in my opinion the tn seems like a really rough idle when I heard it in person not my first choice 5.7 6.0 sloppy smaller engines need help down low
so what was all the hype about sloppy best if no testing is really being done. and ls 6.0
I already tested that cam
Wait found even cheaper 118