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!!!
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!!!
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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 09:34 AM.
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Camshaft was a TSP 233/240 112+2. Basically it was the last camshaft in the motor so we just left it in! 
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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
So modist gains over a ported Ls3 intake, How do you think this would work on a larger cam with ported heads?
I just put one one my car ill be getting it tuned this weekend if the rain holds out
then im going to try to get to the track next week for a few passes
I just put one one my car ill be getting it tuned this weekend if the rain holds out
then im going to try to get to the track next week for a few passes
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So from the looks of it.... its not worth the $8-900 asking price..
It looks to have a lil better flow from 3700-4700, but up top about the same with out being able to zoom in on the graph... I think ill just port an LS3 and save the othere $5-600.
Kyle
BTW this is external Gen IV
It looks to have a lil better flow from 3700-4700, but up top about the same with out being able to zoom in on the graph... I think ill just port an LS3 and save the othere $5-600.
Kyle
BTW this is external Gen IV
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If you have a stock car or maybe just a cam than yeah I guess it's not worth it.. but we are yet to see results on any of the bigger cube motors or even one with ported heads
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I'm definitely on the fence also. I'm keeping my ported LS3 for now.
__________________
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
Can't wait for a bigger (402ci+)engine to try this thing out, That'll make it or break it for me anyways. My situation is a bit diff though... I don't have an intake at all right now. So I spend what $200 if I got a good deal on an Ls3 then have it ported $300, only about $300 more or so diff to get the Fast. You guys over at Texas Speed don't have any of your 418's you can throw one of these on lol. I'm sure it's just a matter of days before someone has some numbers on a bigger engine. Patiently waiting....
Every single result I've seen shows that the L76/LS3 intake works fairly well on 6.0 engines but becomes a limiting factor on the larger builds. The smaller motors consistently pull 500 more RPM than the larger builds all things being equal. FAST is going to have one HUGE pile of plastic on the shelves if the intake doesn't perform better on thet 402+ builds. 
I would port it for now and save the cash. You can always sell it and get a FAST if it proves to be noticeably better on modded engines.
Every single result I've seen shows that the L76/LS3 intake works fairly well on 6.0 engines but becomes a limiting factor on the larger builds. The smaller motors consistently pull 500 more RPM than the larger builds all things being equal. FAST is going to have one HUGE pile of plastic on the shelves if the intake doesn't perform better on thet 402+ builds.
After all, it's called the FAST 102 for LS3's. You would have thought they would have spent their R&D budget around results produced on a 6.2L engine.
Someone with a modded LS2 or LS3 will eventually get one-but for now based on the initial results, I don't think anyone including myself is ready to bite the bullet.