FAST LSXR INTAKE-IS IT WORTH $1000? HOW MUCH HP DOES IT ADD? LSXR VS CHEAP, JUNKYARD TRUCK INTAKE
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- Опубликовано: 9 фев 2025
- LOW-BUCK, CHEAP, JUNKYARD TRUCK INTAKE VS BIG BUCKS FAST LSXR! HOW MUCH POWER IS THE FAST LSXR INTAKE WORTH ON MY LS? SHOULD I BUY IT FOR MY STOCK 4.8L OR 5.3L? FAST VS TRUCK INTAKE-WHO WINS? HOW MUCH POWER IS THE INTAKE UPGRADE WORTH ON A MODIFIED LS MOTOR? HOW TO GAIN, 10 HP, 20 HP OR EVEN 30+ HP WITH AN INTAKE UPGRADE! HOW HARD IS THE FAST INTAKE TO INSTALL? CAN THE FIRST TIMER PERFORM AN INTAKE SWAP? CHECK OUT THIS VIDEO WHERE I COMPARED THE FAST LSXR INTAKE AND 102-MM THROTTLE BODY TO THE STOCK (EARLY) TRUCK INTAKE (FROM THE JUNKYARD) AND MATCHING MANUAL THROTTLE BODY. HOW MUCH POWER WAS THE FAST INTAKE UPGRADE WORTH ON THE BTR-CAMMED 5.3L L33?
![Testing LS Intakes! Which LS3 Intake Makes the Most Power? [Can Stock Keep Up?]](http://i.ytimg.com/vi/uMYlKeNmFuI/mqdefault.jpg)
Thank you for this test. This is almost identical to my Silverado. I just can't justify the money for a intake manifold. However who doesn't love the look of a aftermarket manifold.
Same takeaway I came up with. For a street rod or street truck application you will rarely see over 4500RPM anyway. In this test there was virtually no difference in HP or torque clear to 5,000. That $1,000+ will go a long way in other areas of your project build. Just my opinion and as always YMMV.
My takeaway from the test is that you really have to be honest with yourself about how often you’re going to be above 5000 rpm. For vehicles that see 90% street time, I would argue it’s not worth it. Of course if you’re racing, the FAST is the way to go.
in this case, it's more a case that the stock intake/tb just isn't a huge restriction on the small 5.3. But it is equally impressive that the FAST intake loses nothing at the low end, so it is a win win for those who are seeking to grow further down the line
Even w/my 04 Z06 and 6 speed used as a toy.. I really don't go full throttle over 5500 rpms all that often. It's gotta be like less than 1% of the time. ANd due to traction.. its only in 2nd and 3rd gear when on the street.
People spend more than $1k on wheels alone, that's nothing compared to a $1k intake upgrade thay actually offers performance.
@@sepg5084 ya-but... that performance is only seen a few times. That is... unless your like I was when I was 16yrs old 😆
My 03 Silverado sees over 5k very often lol
Don't forget the Fast just looks nicer as well so more power, better looks and more room to grow made it worth while to me. I was guessing about 20 HP on my 5.3 with a cam.
So a modified 5.3L, $1,000 intake, $514 for throttle body, $398 for cam & lifters, you gain HP & torque = $633 per 3 hp, 42 lbs ft torque is very small gain! Got it.
My 1,510 house is valued at $440.000 which includes a 10 X 12' shed is covered for $44,000. Makes sense to me to pay $428 per month on homeowners even though it hasn't grown larger! Since 92.
Excise me while I throw up..
$2000 + for 30 hp just turbo it . Love your work . Thank you saves people tons of money and work .
Is it $2000 I thought he said it was $1000 which is about what I have seen
1200 for the intake all new gaskets tuning and all the extras to add the intake
Idk bout that, with the turbo gonna need more gas going through injectors from forced induction so would need bigger injectors which 80lb injectors are already $1k+ plus however much the turbo setup is. Typically the stock intake doesn’t perform near aswell under boost as the 102mm lsxr intake due to stock fuel rail and injectors and not enough air to breath, the acceleration on a forced induction engine with the stock intake compared to the 102mm lsxr and some even put another 102mm throttle body spacer on is like walking and riding a bike. In the end huge difference if you go all out compared to cheap.
Literally just went full bore heads, cams, 102mm intake could weeks back. Looks like it was a good choice. Thanks for the test and all your hard work man!
Multiple cam LS? Interesting
Cams lol
It's too bad the price of the Dorman LS2 skyrocketed. If I recall correctly, it made damn good power, not quite what the FAST makes, but close enough considering the cost, at the time anyway. Now they're almost as expensive as this intake if you can even find one.
if you've got this engine in a truck you would be better off going with a NBSS/TBSS intake, much cheaper than the dorman LS2 and makes the same power. In fact there's really no point in even considering the Dorman anymore since the price is over a grand now..if you're spending that much you might as well spend the extra couple hundred and buy the significantly better FAST 102.
Damn. I could make money on my dorman. I bought one early on. Think I paid under $300. Anything more than that is a ripoff. It’s really a piece of shit.
A
The faces you make bruh,. LMAO.. #priceless ! Merry Christmas to you and yours Rich.
You are the man brother.... God bless for all that you do for your community... Love all your videos...
I appreciate that
TBSS intake would have been an interesting comparison.
Eeexxxaaactly what I was thinking
He has done that already in another video
The 2007-14 NBS truck manifold is the same as the TBSS manifold.
And then port the TBSS
You mean Gen 4 Truck Intake
I wouldn't spend the money on the TB, Intake, and Fuel rails until you already maximized your combo with cam, valve springs, converters, gears, tune. Doing this intake/tb/fuel rail on a mostly stock setup that maybe only has headers and a y-pipe this would be money well spent elsewhere and you'd get gapped by a cammed truck or one with a higher stall converter. This would be a good upgrade if you already have the other stuff and just want a little more out of your combo, but I'd probably get a set of ported heads and swap it all on at the same time. Also, can get good gains from a TBSS / later model truck intake swap and you can find those in a junkyard and get it for under $100 if you can find one and remove it yourself.
A grand for gains only over 5150? Yeah, nah. Not for a daily.
Thanks again Richard. Giving us the best info in where to spend our hard earned monies.
Yet another great comparison video. I believe this video is another example to show where to spend your money based on your end result of the combination you want to do.
I cut the mounting tabs off of a stock truck fuel rail and made some brackets to hold the rails down, LS7 injectors with spacers.
I've got a 5.3 in my 84 camaro. The stock truck intake doesn't fit well under the stock hood.
This intake fits great, also the power gain doesn't hurt. Since this is a track car, the high rpms are where it likes to live
Or where U make it live i dought it Likes it lol
Thanks to you Richard I don't have to invest my money into an intake I will keep my stock I heard you saying one of your videos you didn't know how deep lake Tahoe 1,644ft
👍
I did a tbss intake for less than 100. Not as good as the fast but its still an upgrade over the gen 3. Think thats the value play. If you need the best of the best then fast is your manifold.
I love all your videos on all vehicle platforms
Seems like this manifold would be better spent on a 6.0 or a 5.3 punched out too a 5.7 where there would be a bigger requirement for more air volume and flow, a tbss is still the best manifold for a 5.3, considering that you can get ls1 pistons from summit racing for 800 bucks Canadian your money is way better spent increasing your displacement and getting the manifold later
Great test... This shows it'll shine up top and not kill street manners. And if it's not going to live in the upper RPMs, then it's not necessary...
That's where a good TBSS intake would shine great at.
This intake would definitely be great on a bigger motor with good flowing heads as well. But then you get to the point of, when do you just go turbo and keep it more budget friendly. 😁
The fast manifold at $1000 is $41.66/hp for 24hp. Nitrous is about $350-500 for 125/200hp. I don’t have the budget for the fast. I’ve just recently started welding so I can make my own aluminized mild steel turbo kit. I drive a truck with cam, springs, and long tube headers on e85.
no need for fast with boost
I say a LS 3 style manifold has major benefits if you want to keep your old hood in some of the lower profile hoods
THE LS3 INTAKE WORKS WELL ON REC PORT HEADS
make a video about the 300-500 dollar intakes on Ebay and JEGS
Truck intake < TBSS (NNBS) intake < LSXRT
Truck intake will be good for most people. LSXRT is for people pushing the limits of their build. TBSS will increase power across the room range and increase the efficiency of the mods that were already completed and give you most of the gains from the LSXRT without the cost.
TESTED ALL OF THEM MANY TIMES
For the money you can get springs and a cam. Might even be able to still get lifters and more
Also never shown on a dyno graph is Looks and Hood clerance . But the dorman Ls6 does that . If it ever goes back into mass production .
I kind of had an idea where this was going to go because my son swapped out the truck manifold for a fast manifold and the results are very similar. One thing I believe I noticed, or maybe it was in my head, but did anyone else seem to observe the fast manifold and larger throttle body made it louder? Perhaps it was just me or varying placement of the microphone or did I observe the setup becoming louder with the fast? No big deal either way as most people really don't mind a little bit of extra noise if the performance is increased as advertised. Thanks for the test Richard!
change in mic placement and volume during editing
Always a good dyno day when you see Richards Grrrr face
Scary face
I would have liked to have seen the tbss/gen iv intake thrown in to the mix. I considered a lsxrt intake, but you can pick up an lh6 out of a trailblazer cheap with a bad cam, and you get a set of 799 heads, tbss intake, and resell the aluminum 5.3l short block to get most of your money back making the heads and intake almost free.
That test like that exists on his channel, although it's from a few years ago and on a 6.0. ruclips.net/video/a2M10LiwE7Q/видео.html&ab_channel=RichardHoldener
@@wheelbasemedia5814 I've seen that test, but as you pointed out, that was a 6.0l, and one that is more heavily modded than most go. It would have been nice to have seen the tbss thrown in to the mix on a cam only 5.3l like so many like myself are doing.
Thanks for the time and effort you put on these videos for is boss appreciate it.
Blaster! Since 1957. Master Blaster since July 1985
I been waiting on this
My take away is that again cfm demand has told the story, the Fast manifold was more efficient in letting the heads flow their potential with the given lift of the camshaft 👍
you spelled intake design and reflected wave incorrectly
@@richardholdener1727 no I didn’t, it’s spelt “efficient” 🤷♂️
Fast is definitely worth it!
Be interesting to see the results on a 6.0 or 6.2 with a truck manifold vs the lsxrt manifold
LSXRT MAKES THE SAME POWER AS LSXR-SEE THE BIG INTAKE TEST VIDEO (RUN ON A 6.0L)
@@richardholdener1727 Is it essentially that same intake manifold? Same runner length? Just different TB locations to clear the belt drive in each application?
I agree with the others, it's not needed for that build. Your not racing cammed a truck on a track, and if a cammed 5.3L is going in your project car, a wet nitrous kit would be alot better hp/$ for the occasional drag racing.
I noticed when tb was open all the way @ 5:11 into video, @ 5:14 closes slightly, and stays there, have you noticed this, or does that cause variations/power loses?
you are seeing things
@@richardholdener1727 Yes, Im seeing things that are actually happening. Did you go back and watch this same video, @ the times i previously mentioned? You did not see the angle change to the throttle body blade? Please take a closer look, between 5:11 and 5:15 into this video. I just showed someone else, and they seen the throttle body blade change its angle aswell.
Richard have a fantastic Christmas buddy see you 😁💙♥️
YOU TOO
Hmm 🤔since I am porting my heads along with a cam and headers.....🤔 YUP!!! SOLD👍🏁🏁🏁🏁
& 3in exh.
Great video, you definitely should have included the gen4/tbss intake in the test though.
He has done that test already, in his previous videos.
@@allanb3222 on a more heavily modified 6.0. It's not exactly the same.
@@SwS_Motorsports He did it on a 5.3 as well.
Ever test the stock smaller throttle body on something like this or the TBSS just to see what happens? It would be nice to see if there is a loss of power between the two since it is expensive to go with an aftermarket throttle body or OBD Link adapter harness.
the stock tbss tb is dbw
@@richardholdener1727 I know. I meant that the 3 and 4 bolt throttle bodies aren't electrically interchangeable and require an X-Link to make them work. The DBC guys have to run an cheap adapter or an expensive aftermarket throttle body with known Idle issues. I am going to run the TBSS manifold on my 03 6.0 w/ DBW, and use the 3 to 4 bolt adapter. I am just curious if there is HP left on the table with the stock, smaller throttle body. Thanks for the reply.
Great show sir
I love watching your videos they make want to try new things on my Challenger. Richard I would love to see this test done with the gen 3 hemi and eagle heads running comps 201-428-17 cam to compare the Charger/ Challenger intake to the Holley intake.
Ever tried a edelbrock cross ram on one of these using the adapters? I know that manifold has done very well in all the testing I have seen of it. I wondered if the transitions of shape really hurt it that bad.
YES-THOSE TESTS ARE UP-BUT THAT INTAKE WAS FOR A REC-PORT HEAD-SEE THE LS3 INTAKE TEST VIDEO
@@richardholdener1727 Yes I have seen your testing with it before, was just wondeing if you had ever run one adapted back to the old engines to see if it still worked well or if the adapting killed its performance.
I had a fast 102 on my boosted 383 ls , great intake but it kept leaking water, ended replacing it with a btr intake ,
Leaking water? How
Another awesome video 👍👍
Like I said before intake mods make more power now a 6pack ported TBIs is in order think the magic gain will be in the 40hp range n/a and better coil near plug
what is a 6 pack ported tbi?
@@richardholdener1727 TBIs with butterfly porting so they match and are flowing better than stock and venturi effect
2016 and 2017 mustang gt injectors fit a fast manifold and rail with just a o ring change
was hoping for the early truck intake AND the tbss intake vs the fast lsxr.
that video is up
I have to go back to your old cathedral port intake manifold test and see how badly the TBSS manifold beats the gen 3 truck manifold... And then there's the topic of how much is the throttle body worth in this power range/how big of a TB can you fit on a TBSS manifold with a bit of porting, or a reasonable adapter..
I think the Gen 3 truck manifold was 78mm and the Gen 4 truck manifold 87mm. You can fit a ls2 or LS3/7 90mm (some say it's 92mm after porting) throttle body depending on what color blade you have silver blade 07-08 or gold blade 09-14
A lot of time and money just to get the Gen 4 intake to work on a Gen 3 truck.
@@shadowopsairman1583 It has nothing to do with a truck for me.
@@DeathStalkerAlpha Interesting, thanks!
Have you ever done a traditional old school roots blower on gen3 hemi ? Maybe vs other superchargers / blowers
NOT ON A GEN 3 HEMI-YES ON AN LS
Maybe even a hellcat blower vs a 6-71 , 👍🏻
Fast might only make 10hp more than tbss intake, and they can be had for $200
I'm assuming it would be even more of a gain on similar build 6.0 litre.
I'd like to see if a heatshield under the manifold would make a difference like the internet says it is
ty
I wonder if shaving all the extra stuff growing out of the Truck Intake would make it look cool
It does not. Shaved truck intakes look like ass.
I’m sure it’s been said, but I really wish you could have done a Tbss manifold with same throttle body.
LOTS OF THOSE TESTS UP ON THE CHANNEL
So glad that you talked about the timing and fuel adjustments. Great test once again. You're actually the person who talked me into a FAST LSXRT through your videos.
However, now I am on the fence... do I use my ported cathedral port heads and FAST LSXRT? Or use my recently acquired LS3 heads with a rec port truck intake? I'm pretty sure I could sell the PRC Stg 2.5s and FAST pretty easily. Regardless of what I use, I'll be buying a camshaft - so that is a wash.
if you have ported cath heads-keep those with a fast
@@richardholdener1727 I do, they are PRC Stg 2.5 ported 706/862 castings.
Cathedral gang!!! That fast is a baaad unit. Yes I bought a new one but I understand it’s not for everyone. Thanks Richard
@@baby-sharkgto4902 I bought a new one as well, got a crackhead deal on it. It was hard to say no.
@@bluecollarhotrods9781 nice! They work great
I was really hoping you would have thrown in an overlay of the tbss manifold with those two
usually more than truck but less than fast
@@richardholdener1727 yeah I understand that. Anything smaller than a 6.0 I tell everybody not to even bother changing the manifold unless they have a massive cam
Richard I’ll try to catch you in a live but I need someone smarter than me to answer this pondering thought. In a bbc tall deck block could I use a 3.76 stroke with a very long rod would this be counter intuitive? I’m looking at a 477 4.5 bore 3.76 stroke. I know valve train is the limit to rpm but I want to eliminate any detriment to engine speed.
YOU DON'T NEED TO DO THAT-ESPECIALLY WITH A 3.76 STROKE
@@richardholdener1727 too short of stroke for a tall deck? Or the short stroke doesn’t help
I don’t find much info on the 5.3 ls in impala ss on its intake do you have any idea if it cathedral and what kind of power loss you get using it thanks great show by the way .
see the ls4 intake test video
Trying to decide on a rod mod and ported tb. Or just taking it in the bank and getting a fast 102 and tb. Bolt on ls2 with a Norris cam made 438 wheel 480tq
is this an automatic?
manual gto, appreciate the reply
I have yet to see any manifold beat the FAST in that operating range
I know Richard tested a 102 vs 92 throttle body on a FAST 102 intake, but I’m curious what the difference is between a FAST 92 and FAST 102 intake. I’ve only been able to find tests comparing the old FAST 78 and the FAST 102. The only reason I care is because it’s my understanding that my stock LS1 fuel rails will bolt up to the FAST 92, but I will need LS2 rails with the FAST 102.
I HAVE A VIDEO UP ON 92 VS 102
@@richardholdener1727 I guess I’m no good at Google or something. ruclips.net/video/ZO6iQRes74E/видео.html This is the only 92 vs 102 video of yours I can find which, when I wrote my comment last night, I thought you had run on a FAST 102 intake. Would you mind pointing me in the right direction for a FAST 92 intake test?
id like to see the fast lsxr vs the new holley ultra low ram. i know they tested all the holley intakes with each other the the ultra low ram wasnt too bad compared to the high ram. i have a stock hood i want to clear so its either a fast intake or the ultra low ram
Unless you plan on shifting well past 8,000 RPM, The fast manifold will have a WAY better power curve than the low ram.
a low ram won't even be close-til very high rpm (above 7000)
I have some sort of ported heads on a 5-3 truck intake still working on getting HP tuner to fix the tune has a BTR stage 3 camshaft do you have a video with the fast intake on that setup something with upgraded heads and intake but not Pistons bottom end all that kind of stuff. This build is going to definitely be stages my next major purchase if any would be the Trailblazer SS setup flex fuel unless you say that's not worth it before a turbo
this was a cammed 5.3L with a fast-both numbers would be up slightly with properly ported heads
@@richardholdener1727 I guess then what would be your expectations of a good tune on a 5-3 with properly ported heads the stage 3 Brian Tilley Truck cam and stock injectors fuel pump air intake I was thinking ones properly tuned 450 crank 300 wheel? 2500 stall converter stage one 4l60 GM performance. Shorty headers okay let the converters.
This is not a TBSS style intake. The later model TBSS or Dorman of it Richard has proven is a better intake than the old style one. Id like to see that test against the Fast one
PLEASE SEE THE MANY TBSS INTAKE TESTS (EVEN 1 VIDEO WITH FAST VS TBSS VS TRUCK)
I have a 5.3 lm7 with TSP 216/220 stage 3 camshaft. 1 7/8 long tube headers that turn into 3 inch exhaust straight out to the back bumper. LS7 lifters and springs kit and a new oil pump...K &N filter of course With a custom tune from the shop that I had do the install. I am asking for your advice on what size LSXRT intake I should get. What's the best combo for what I currently have done on my truck. I know there is a sweet spot between to much air flow and a little restriction. Your the master bro! Tell me what's up. And also if I do the LSXRT install myself will it need to be re-tuned? Should I also get a new fuel rail and injectors if there is a kit that LSxRT comes with ?
the lsxr or rt version make the same power-get the 102mm version
@@richardholdener1727 thank you!
@@richardholdener1727same question but I have the stage 2 cam, and I haul a trailer. What intake will give me the best low end torque? And if a new manifold isn’t the best way to do it what is? Thanks for these videos Richard!
So is there a better looking option over the stock ones that achieves the same power?
What was the gains for the valve train & cam upgrade and at what cost? How much would a shop charge to do a cam swap?
NO IDEA ON SHOP PRICES
That throttle body looked ported on the stock truck intake, I know because mine looked very similar, who knows if it’s worth power
IT WAS NOT
If, you hand ported the stock truck intake, would that close the FAST Intake increase gap????
never tried
How would an LS6 intake with ported throttle body fair in this comparison?
Exactly what I want to know. I have the ls6 on my 04 gto and if it’s over 20hp gain that’s worth it.
ls6 should be like or just below tbss-so between these two
Have you done a test with running a 78 vs 87 vs 90 vs 92 vs 102mm (or some combination) of throttle body’s on that Fast intake. I’d be curious if say you swapped from a TBSS to a Fast and could save some coin by running the factory TB if going to the 102 wasn’t necessary to maximize your application.
THE SMALLER TB WOULD BE FINE FOR MANY APPLICATIONS-LIKE THIS 5.3L
Any difference w no air filters,to having one....
How would the truck intake do with a larger throttle body? If you could get close to the one on the fast intake you could possibly get +24 or more.
the throttle body size is not why the Fast intake made more power
@@richardholdener1727 no doubt and better hood clearance. That truck manifold isn't very attractive next to the fast intake. A larger throttle body would definitely help the truck intake if it would fit on it.
Would have been cool to see it with the nbss/tbss intake, I'm sure you've done the test in some shape or form
I agree, I have a ported TBSS on my 408, and I wonder what I’m leaving on the table.
WATCH THE BIG CATH INTAKE TEST VIDEO
@@richardholdener1727 sorry i should have said that you've probably shown us that test in the past. thanks!
Morning Richard
On my 5.7ls1 would a tbss truck manifold work height is not an issue hood wise.
From your videos the tbss is better than the ls6?.
What is the throttle body size also on the tbss.
Thank-you
Aaron.
The TBSS is only marginally better than the LS6
so im middle of the road herer.....having a pretty decent texas cam, with ls6 intake,long tubes in a manual BUT stock 243 heads. Would i be wasting money going to the 102? or would or should do head work along with the intake swap?
LS6 INTAKE WON'T ACCEPT A 102 TB
@@richardholdener1727i understand that, just asking if i went all in with the upgrade intake and TB , would it be a waste of money with stock 243's thanks
Don't ask me what happens w POS FAST intake and rails, when you install the rails per FAST instructions and the rails pull up almost off the injectors. You can watch your fuel gauge go down..BTW, FAST will not acknowledge this..Design sucks.
I gained 45 to the wheels on my old heads cam 5.7 build switching from a ls1 intake to the fast. Big gains. The square port one isn't worth it. Only buy it if you have cathedral heads
The original LS1 intake sucks. The only thing worse is the LS4. A stock early truck intake blows the LS1 intake out of the water.
@gofastparts4u agree. I didn't believe it was worth 1200$ but it sure was. It's now on my 383 making 570 to the wheels
Please test vband versus t4 exhaust housing....like VS racing .96 t4 against .96 v band. Matt happel made a comment on a recent video that v band makes greatly reduced power due to reduced compressor housing volume
If i had a deal on a i take instead of 1500 it was 500 maybe. But at that price i would just save a little nore and get a twin turbo kit for 3600.
How much is the TBSS intake worth over the “older” truck intake?
BETWEEN THE TRUCK AND FAST
I know you said at 7:00 p.m. you get on live talking people got questions for you to answer but I won't be able to get on at that time I was wondering first does anybody know any good tuners close to Lexington North Carolina second I have a 2013 Chevrolet suburban with the truck norris cam LC9 and all I did was put LS3 springs obviously DOD delete and the guy that tuned it just don't just don't seem right and I was told that's is how all cammed ls drives . But I've seen better drivability out of this setup off of other people on RUclips and I was wondering since you do so many different setup what kind of horsepower do you think it may have. Once it is dialed in right
it should drive well with that cam-is it a 6.0L?
@@richardholdener1727 it is a 5.3 lc9 I talked little about it in live feed
@@richardholdener1727 it's in a 2013 suburban ltz
STILL SHOULD BE FINE IN A 5.3L
@@richardholdener1727 I think it's the tune it just surges a low rpm speed and then it sometimes will stall and getting terrible gas mileage just need to find a good street tuner in my area I went with a mail order tune and it does the same thing as the first guy just not as bad oh and first guy said I needed to get my abs serviced I have a service brakes soon message sometime I read it could have something to do with vacuum but thanks for talking with me and keep up the content it's a learning experience
I have a 76mm throttle body on my 6.0 can I swap to 92 mm without any issues
what size is the opening in your intake?
@@richardholdener1727 the 92 fits perfectly but I just did a check fit
Doesn't the lsxr require that a hole be drilled for the MAP sensor?
IT HAS THAT PROVISION, BUT WE JUST USED ONE OF THE NIPPLES
Ok someone get me up to speed here. I really don't know much about cathedral port intakes. I know you have the LS1 and LS6 for the car style intakes. And for the truck intakes there is the Trail Blazer SS intake and.... This is where I'm lost. Are all other cathedral port truck intakes the same? 4.8, 5.3 and 6.0 Gen 3, and 4.8 and 5.3 gen 4?
early truck
@@richardholdener1727 can you elaborate? The one you tested was early truck? And what would be the difference in early and late truck?
Looking for a intake manifold for my Sierra 2500hd which one would you recommend
fast or tbss
Sooo which runners were you running in the fast then? I'd assume long runners.
THIS FAST MANIFOLD WAS NOT ADJUSTABLE
I'm looking for a efi ls3 duel plain intake.. I want the torque power
The truck manifold will make more torque than a dual plane.
Can you get a carburetor application match the Fast?
NO SIR
what was the water pump your using in this video?
meziere
Couple questions if you don’t mind. How much tq does this cam lose over stock around 3000-3500rpm? Any idea what rpm it would idle at and the vacuum at idle? My son has a super clean awd 2004 Silverado regular cab 5.3 and we are trying to decide on cam. The FTI stall I just put in is rated at 3200 and will stall 3500 in 4wd on the foot brake. Truck leaves hard as hell, he has race star drag wheels on it. It’s a stop light terror but needs more power. Stock cam right now.
it does lose power below 3500 (25 lb-ft), a better choice would be the BTR Hot Rod cam
I can't wait until we can 3D print an intake manifold. I understand R&D costs but how FAST charges a grand for an injection molded piece of plastic seems insane to me. If they charged four hundred they'd sell three times as many and make more money.
I don't think that business plan is sound
So is it more cost effective to upgrade the heads or get the fancy fast intake?
fast is cheaper than heads
@@richardholdener1727 how about porting
@@joseiracheta3817 you can probably pick of a pair of heads from the wrecking yard for pennies on the dollar and port them yourself for like 50 bucks, ported 706 heads rock on a budget
What did you figure for the lsxr102 manifold volume?
I don't ever calculate it
With bigger displacement, a bigger cam, and better cylinder heads, it's well worth it IMO. My heads/cam/intake 5.7 beat up on a lot of cars that didn't expect it
Start with a Truck Norris cam and go from there. Just to go from a Gen 3 to Gen 4 Truck intake is a lot of time and money.
Curious how the lsxr compares to the lsxrt under na applications and boosted applications.
tested many times-they are the same
Have a link to the cam?
BTR web site
Im looking to put this on my 2007-13 model silverado 4.8, but its not driven by wire throttle body. Can i still put the fast big mouth throttle body on it with no cable and would it work?
you would need a dbw throttle body -but I don't recommend the FAST on the smaller 4.8L, unless you have lots of mods