CARBON PTR INTAKE TEST! HOW WELL DOES THE ADJUSTABLE, CARBON FIBER INTAKE REALLY WORK? RUNNER TEST!
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- Опубликовано: 8 апр 2024
- WHO MAKES A CARBON FIBER, ADJUSTABLE LS INTAKE? DOES THE CARBON FIBER INTAKE MAKE BIG POWER? WHAT HAPPENS WHEN YOU CHANGE THE RUNNER LENGTH IN AN INTAKE MANIFOLD? CAN I RUN A CARBON FIBER INTAKE ON MY LS? DO I NEED TO ADJUST THE RUNNER LENGTH ON MY LS? DOES A SHORTER RUNNER ADD ANY POWER? DOES A LONGER RUNNER LOSE ANY POWER? CHECK OUT THIS VIDEO WHERE I RAN THE CARBON PTR INTAKE FROM PERFORMANCE DESIGN ON A HEALTHY 5.3L. CHECK OUT HOW TO SWAP RUNNER LENGTHS ON THE CARBON PTR INTAKE, AS WELL AS WHAT CHANGES ARE MADE TOT HE POWER CURVE WHEN YOU SHORTEN THE RUNNERS.
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Next, try four short runners on the center cylinders and four long runners on the outer four cylinders!
I did that-it makes less power
That's a pretty... healthy... cam for a 5.3 (it's a 233/25X .636/.636 for those wondering).
I'm running basically the same cam in my LS7 lol
A lot of lift for a short period of time keeps power down low and I'm sure makes fine vacuum and idles well.
Stage 4 na! Works great in an LS1 camaro.
I am running the BTR Redhot cam in my Ls3. 221/24X .617/.619 113 LSA. Stage 4 in a 5.3? Yea that's a big cam!!!! Lol
@@GrandPitoVichow?
Motorcycles have this same kind of intake with movable runners except they are ecu operated
It would be pretty easy to build a plenum spacer so you can put on really long runners.
Love the short format
Superb, fresh vid on the morning of Eid Al Fitr. 🎉
It wouldve been nice if you had brought up the dyno graphs from the other intakes that you ran on that motor for comparison. Like the highram, trinity and im sure a few others also.
Given the amount of guys switching to EFI it would be great to see what sort of A/F variations we see across all cylinders with common carb type manifolds which have fuel injectors at the head ports (MPI), adapted to them. Probably some common ones would be a victor, super victor and RPM air gap dual plane.
Are people tempting fate by using these manifolds with EFI and creating very lean cylinders ?????
see the carb vs efi video on a single plane ls
AYY this is a cool video, i have one of these ill be putting on my Lt1 but i need to rebuild the shortblock first
This intake is the same as the lsxhr intake. Makes a little more down low and a little less up top then the holley. Thats with the long pieces.
that an awesome intake!
I wish I wouldn't have to cut the cowl on my Corvette to fit this manifold.
Good upload! 👌🏾👌🏾
I like that intake.
Fwiw
I love the tq with and without manifold top
Surprised there wasn’t more difference.
Nice
like to see you do some testing on the 6.6 gas job bore stroke compression cam Factory to built
I run this on intake on a dart ls7, 445, shorts made more power over longs with it too.
shorts might make more peak power than longs, but will loose elsewhere
If you were to set your Rev limiter would it be 72 or 7300?
Hi Richard can you do some testing on a sbf 363 efi motor
I have those vids up
have you done a test comparison with the fast manifolds and std manifold against the carbon ptr intake
This information is why I'm here, how bout it Richard? Is the carbon ptr worth the extra 300$? Are the lowers identical and bought from the same injection moulder?
Do you think the runner length doesn't matter as much on an EFI intake vs. a wet flow intake?
it matters on every intake
What is the différence whit stock ls6 , STD truc or fait intake ?
SEE THE LS3 INTAKE TEST VID
Hi Richard at the moment iam doing a custom manifold on a sbf 363 efi motor
I have a holley hi rise manifold and I extended the runners by 5.5 inch and the manifold has 6.5 runners that makes 12 inch runners with a custom made lid the cam is 227 234 .063 lift at 112 what your throught on this peter
did you make a spacer for the lid to fit the runners
@richardholdener1727 yes it run a 90mm throttle body and the runner have belmouths on them
@richardholdener1727 also I have flow the manifold set up with my set of heads afr 190 comp with the 90mm throttle body and a belmouth
The flow fig ar
550th 267.2 600th 275.7
650 th 279.4 700th 281.7
With out the lid on the manifold it flow at
.600th 282.9 650th 288.9
700th 291.1
Yo
Quick question what would be the best intake for a 5.7 hemi ????
To achieve what?
On a turbo or supercharger build?
Question new to boost. I have lq4 with the 54 454 11 cam and sheet metal inatke and ported 243 heads made 430rwhp now been trying to install turbo kit and 7875 want to make good power at 14lbs what do you think would? make and people said the cam is to big for back pressure with small turbo. So bigger turbo or different cam?
a 7875 would work well on that
@richardholdener1727 Thank you! Also does fuel regulator need to be before or after fuel rails?
@@joshbrunet9079better to have after fuel rails but will still work before if needed.
@horsefly1020 perfect thank you!
I remember you made more power with the holley Hiram NA, when you were doing the M90 tests. Probably needs far more cubes to be effective.
I wonder what it would do with long, short by the firing order.
I have tried mixing and matching previously
@@richardholdener1727 I missed it, did it do as expected
@@richardholdener1727
That was my question, if you had staggered the runners, but by also swapping long for short both ways.
I would think that the front cylinders would be losing air to the back due to plenum design.
And with taller runners up towards the throttle body they would have better chances of actually being balanced to a better degree.
Did you have sensors on each to read afr and egt's per cylinder to verify they were as close to equal as possible?
As I always felt that with to common plenum designs, that the further back the ports were the better flow, because of the air being forced into them, due to air hitting the back of the plenum.
That and just with velocity coming in through the throttle body being blasted past the lead runners, and doesn't appear to be enough area to allow for it to equalize the pressure with the design sloping towards the rear as it does.
Be interesting to see actual flow characteristics done with a clear mockup with smoke and all the proper meters for reading CFM's velocity static pressure.
That'd be the truest form of designing how the runners and plenum needs to be designed and then play on the dyno.
Yes Sir I am sure that they never thought of going to such detailed analysis, because that's not cheap do, and small smoke grenades are so expensive 😊
I wonder how this compares to the MSD Atomic, although I doubt it would fit under the hood of my C6Z
Didn’t really seem to be a big enough difference in runner length to have mattered that much. How much longer do you consider the longer runner with that taper from front to back?
I say again: I have not seen anyone do a test where they change not only length, but DIAMETER of the intake runners.
My theory is that with a long enough runner with a large enough cross-section, you could have a little bit of the best of both worlds: length for low-RPM but cross-section for higher RPM, so one would not completely defeat the otherr.
A super-long-runner with super-small cross-section would dramatically sacrifice mid- and top-end power for low-RPM torque.
A super-short-and-fat set of runners would do the opposite.
A fat-and long set of runners may find a middle ground, as it were. more low-rpm torque boosted a little bit and high-rpm power raised a bit.
But, the question is: "Can a fat runner's higher RPM potential still be found if it is a long, fat runner?
Note: the Holley Sky-Ram's runners were just too small in diameter and choked off the motor, in my opinion, which is why I never liked the overall results of that somewhat humorous test. Super-long runners need to be super-fat, too to not choke the engine out.
reflected wave and flow don't do the same thing
You need to change your color lines per engine instead per output to see the comparisons better. We know which is torque and which is HP.
I can't
Which color is torque and ummm which ones horsepower? 😂
I'm color blind, I'm fu***d
Not really enough to say solid gains really
Really how you said really. But really