Engine Dyno Testing LS3 Intakes INSIDE!!
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Engine Dyno Testing LS3 Intakes INSIDE!! After swapping intakes for the last 3 days we finally have some data for you guys. These tests were run 2 different ways, once with a maf in place & the test I'm posting which was speed density. The speed density showed power gains that the 85mm MAF was holding back. As a result I'm only posting the Speed density results. If your getting a upgraded intake you really should consider a 100mm maf or speed density tune to see decent power gains.
Here's a few pics of the intake testing:
Results:
Differences:
For the 2010 guys these results should be pretty close to what they'll see. Using the speed density best simulates the large MAF the LS3 cars ship with!!!
Engine was a stock head LS3 with TSP 233/240 112+2 camshaft.
Here's a few pics of the intake testing:
Results:
Differences:
For the 2010 guys these results should be pretty close to what they'll see. Using the speed density best simulates the large MAF the LS3 cars ship with!!!
Engine was a stock head LS3 with TSP 233/240 112+2 camshaft.
__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Last edited by Jason 98 TA; Sep 28, 2009 at 09:33 AM.
Good job Jason, we need them clearer if you can. Not the most impressive numbers for a new intake, at least on a small cube engine.
Perhaps some bigger engines will benefit more from this, the 6.2L and 6.0L look like they work best with intake porting, a 100mm MAF and a cam. Heck a cam, MAF and porting are cheaper if you can do the cam yourself and pay you for the intake porting.
I guess I could just spray mine and call it good or build a bigger engine.
Perhaps some bigger engines will benefit more from this, the 6.2L and 6.0L look like they work best with intake porting, a 100mm MAF and a cam. Heck a cam, MAF and porting are cheaper if you can do the cam yourself and pay you for the intake porting.
I guess I could just spray mine and call it good or build a bigger engine.
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You can see in the pics with the stock intake its def rectangular port aka l92.
So the motor IS at least a 6.0,probably a 6.2 as they come in all the new Vettes and all the high end trucks(Denali,Escalade,etc)
Def need to see how a truck l92 compares though!!!
So the motor IS at least a 6.0,probably a 6.2 as they come in all the new Vettes and all the high end trucks(Denali,Escalade,etc)
Def need to see how a truck l92 compares though!!!
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Thanks for posting and that is EASILY the best price available on this intake.
But I have to ask am I reading it right and making the statement that the gains vs the ported LS3 were minimal under the curve and very marginal above?
But I have to ask am I reading it right and making the statement that the gains vs the ported LS3 were minimal under the curve and very marginal above?
Ls3 and l92 are the same head,different intake valves.....at least thats what TEA told me when I ordered my CNC l92's.I did upgrade to the ls3 intake valve
Its still at least a 6.0 as you have to have a 4" or larger bore with the l92 or the l92's with better valves aka ls3.
Joined: Nov 2001
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From: Texas and Qatar
GM Intake has a 90mm cable TB
FAST Intake has the 102mm FAST TB
Wanted to use the 90 for both to better simulate the LS3 TB but after bolting it on, there was a small spot at the bottom where the larger intake inlet would not seal with the 90mm completely.
I'm pretty sure the MAF was a small restriction, just more apparent with the ported intake and FAST intake.
FAST Intake has the 102mm FAST TB
Wanted to use the 90 for both to better simulate the LS3 TB but after bolting it on, there was a small spot at the bottom where the larger intake inlet would not seal with the 90mm completely.
I'm pretty sure the MAF was a small restriction, just more apparent with the ported intake and FAST intake.
Its a difference graph, its easier to see the differences. It basically says:
FAST LSXR: 16.6 ft lb peak gain and 15.20 peak HP gain.
Ported LS3: 11.6 ft lb peak gain and 13.25 peak HP gain.
It also shows the FAST is up about ~10HP and ~10 ft lbs(on average) through the mid range(3600-5500 RPM) over stock LS3 intake. And ~5HP and ~5 ft lbs(on average) over the Ported LS3 in the same area. At the end of the pull both intakes are gaining over the stock one.
Does that help out explaining the 2nd graph and how to read it? Seems like everyone is concentrated on the top graph only trying to read between the lines.
Last edited by SweetS10V8; Sep 27, 2009 at 12:20 AM.
The graph is large, look at the 2nd graph..
Its a difference graph, its easier to see the differences. It basically says:
FAST LSXR: 16.6 ft lb peak gain and 15.20 peak HP gain.
Ported LS3: 11.6 ft lb peak gain and 13.25 peak HP gain.
It also shows the FAST is up about ~10HP and ~10 ft lbs(on average) through the mid range(3600-5500 RPM) over stock LS3 intake. And ~5HP and ~5 ft lbs(on average) over the Ported LS3 in the same area. At the end of the pull both intakes are gaining over the stock one.
Does that help out explaining the 2nd graph and how to read it? Seems like everyone is concentrated on the top graph only trying to read between the lines.
Its a difference graph, its easier to see the differences. It basically says:
FAST LSXR: 16.6 ft lb peak gain and 15.20 peak HP gain.
Ported LS3: 11.6 ft lb peak gain and 13.25 peak HP gain.
It also shows the FAST is up about ~10HP and ~10 ft lbs(on average) through the mid range(3600-5500 RPM) over stock LS3 intake. And ~5HP and ~5 ft lbs(on average) over the Ported LS3 in the same area. At the end of the pull both intakes are gaining over the stock one.
Does that help out explaining the 2nd graph and how to read it? Seems like everyone is concentrated on the top graph only trying to read between the lines.