Thank you Jacob, for taking the time out of your day, to tell me the cam specs. That way can get a transmission built to handle one of your motors. I look forward to ordering from y’all in the future. 👍 👍 Extreme automatics and Smeding performance, great combo
I’ve done a few ls motors with hi ram and dual dbw throttle bodies on the top. Buy a blank carb top and it’ll pick up more from smoothing out the air and slowing it down.
I have a CID LS3 intake as well as a GM performance parts LS3 dual plane. I've only seen this dual plane appear in an engine Masters competition where it did well , but I've never seen anyone else test the thing. If you plan on doing another LS3 intake manifold video within the next 2 months I would gladly send you those manifolds to see the results.
I'm really surprised by how hard the BTR and PTR intakes fell off, I was thinking it was a valve control issue until the Highram test. I thought they would carry much better than that
I have those same heads going on a 427. If that’s all the power it makes I would be disappointed. I’m Going with a bigger cam and a cid . We shall see.
Is that a 4.125" stroker or is it a 4.185 x4" engine? Really surprised at the power curve! I expected to see 7500 rpm powerband especially with a super short runner like the BTR Trinity. Until the Hi-ram run I thought there was something goofy going on with the hydraulic lifters maybe it nosedives HARD.
I'm definitely seeing the cubic inches in the torque figures 665 ft lb is stout. My 12.5:1 compression 427 made 608 ft lb at 5800 with a CID intake, and peaked 746hp at 7100 rpm. Duration was not far off, but I used a much higher lift lobe .775"/.751" lift. With torque peak coming in at 5300 you can definitely use more duration - will be an exciting comparison.
Ah yes. The MSD Atomic Air Force intake for the LS7. It's a great intake once you sort out all the QC shortcomings. It's no surprise there are design oversights that did not allow for use of a 4 corner steam vent configuration. Too bad really, there are a lot of guys running them and MSD has yet to add a few much needed improvements.
As always, great video, you guys provide really good information. Probably need a camshaft like a 284/ 298 at least 750 lift with those big heads. I think it’s going to make 800 hp or more.
that is debatable there are many variables just remember the PTR CF intake does not heat soak anywhere close to the Holley Hi Ram plus makes more TQ and weighs less so depending on your car a Max effort street car seems like the PTR is the way to go just have to either buy a 4" cowl hood or custom cut yours either way great testing great job
@omegasquad868 Yes it is debateable. For the drag strip the Holley over the Carbon. That extra torque on the drag strip is only usable in a narrow window. On a street car it's fine. The Holley is cheaper and I would trust it more in a high boost application.
It's an 8000+RPM race intake, it wasn't intended for this sort of application. Still a good data point for reference though(don't buy the wrong intake for your combo lol).
@@RyTrapp0 yet the Holly High Ram had no issue maintaining its power at the higher RPM and barely starts to drop off. The Cam is also quiet big so its clearly not the issue.
Questions about your engine build? Book a call with me via my Tazet profile - shorturl.at/oKLQR
Thank you Jacob, for taking the time out of your day, to tell me the cam specs. That way can get a transmission built to handle one of your motors. I look forward to ordering from y’all in the future. 👍 👍
Extreme automatics and Smeding performance, great combo
yes i have so many questions, looks like ill be signing up xD
Ur video is cut right from Richard Holdners bunghole lol
just did ;)
Prefect timing for this, I too am a new to me C6Z06 owner
Would've been cool to see a ls7 CID intake on there to compare with a 4500 throttle body
My car with a ported 112 trinity made 671 wheel. Not a lot of torque but on the street I was seeing over 100 KPA with my ram air intake
I’ve done a few ls motors with hi ram and dual dbw throttle bodies on the top. Buy a blank carb top and it’ll pick up more from smoothing out the air and slowing it down.
Euh ... What should be the best intake manifold for a stock Ls7. I just want more torq every where for my c6 z06 🙂
I have a CID LS3 intake as well as a GM performance parts LS3 dual plane. I've only seen this dual plane appear in an engine Masters competition where it did well , but I've never seen anyone else test the thing. If you plan on doing another LS3 intake manifold video within the next 2 months I would gladly send you those manifolds to see the results.
Well, what's the problem with writing the engine configuration right away in the video description?
I'm really surprised by how hard the BTR and PTR intakes fell off, I was thinking it was a valve control issue until the Highram test. I thought they would carry much better than that
I have those same heads going on a 427. If that’s all the power it makes I would be disappointed. I’m Going with a bigger cam and a cid . We shall see.
Awesome video! Interesting to see 40 extra ci gives you about 50 extra ft-lb of torque compared to your personal engine
Any update on this engine with the new cam combo?
Curious to see how the CID 4500 would perform on that same engine.
The LS platform has gone way past what I ever thought it would. And every day it seems like there’s something new for it! 👌
How close are the fast lsxhr and the carbon ptr?
Your testing what Richard Holdner tested already tho , it was done at westech performance
I can’t seem to find where he tested on the LS7?
I wonder how much a build like this
Is that a 4.125" stroker or is it a 4.185 x4" engine? Really surprised at the power curve! I expected to see 7500 rpm powerband especially with a super short runner like the BTR Trinity. Until the Hi-ram run I thought there was something goofy going on with the hydraulic lifters maybe it nosedives HARD.
I'm definitely seeing the cubic inches in the torque figures 665 ft lb is stout. My 12.5:1 compression 427 made 608 ft lb at 5800 with a CID intake, and peaked 746hp at 7100 rpm. Duration was not far off, but I used a much higher lift lobe .775"/.751" lift. With torque peak coming in at 5300 you can definitely use more duration - will be an exciting comparison.
What heads? I have a 427 as well with mast heads with same compression and a new 4.5csa cid to put on @MPbdy
Agree this test needed to go up in rpm for btr to shine. The msd would have done well on this test especially with work done from iron mask
@@CLEEPER1 BES ported 280 or 285CC stock castings can't remember what the port volume was. I've got a youtube "short" of my dyno pull in my profile
Cam specs would be very cool as a data point. Must have been very conservative
Am I seeing the engine losing some cylinder pressure?
Should make 800+ HP with a good cam. Get a Cam Motion low lash solid roller for it.
How much ignition timing did you end up running with the f710 heads?
Ah yes. The MSD Atomic Air Force intake for the LS7. It's a great intake once you sort out all the QC shortcomings. It's no surprise there are design oversights that did not allow for use of a 4 corner steam vent configuration. Too bad really, there are a lot of guys running them and MSD has yet to add a few much needed improvements.
As always, great video, you guys provide really good information. Probably need a camshaft like a 284/ 298 at least 750 lift with those big heads. I think it’s going to make 800 hp or more.
Turn them 8000 to see what btr does
Why, it already started to roll over before 7000 lol
@@modifiedz0695 wrong cam for it
@@CLEEPER1there’s no right cam
@@modifiedz0695 mine doesn't lay over at 7000
Cam is already pretty big as it is and it already started to tapper off at 6.9k
SBC powaaaa!!😍😍😍🇺🇲🇺🇲🇺🇲💪💪💪
Get the new cam with 110 lobe
Frankenstein heads 👍
Hard to beat the Holley Hi Ram. Those heads are salami's .
that is debatable there are many variables just remember the PTR CF intake does not heat soak anywhere close to the Holley Hi Ram plus makes more TQ and weighs less so depending on your car a Max effort street car seems like the PTR is the way to go just have to either buy a 4" cowl hood or custom cut yours either way great testing great job
@omegasquad868 Yes it is debateable. For the drag strip the Holley over the Carbon. That extra torque on the drag strip is only usable in a narrow window. On a street car it's fine. The Holley is cheaper and I would trust it more in a high boost application.
263/275!
pfft. 404 gone do your 416 nasty son.
I’m not impressed with the BTR Al all. It’s making factory LS3 numbers.
It's an 8000+RPM race intake, it wasn't intended for this sort of application. Still a good data point for reference though(don't buy the wrong intake for your combo lol).
@@RyTrapp0shit was dipping at 6.7k rpm. How will it help anymore to go to 8k lmao
@@granddya5323 Because of the camshaft...
@@RyTrapp0 yet the Holly High Ram had no issue maintaining its power at the higher RPM and barely starts to drop off. The Cam is also quiet big so its clearly not the issue.
Thank you for your knowledge and videos USA 🇺🇸 TRUMP
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