How much HP differance between LS6 Intake &TB and a Fast 90/90 or 92/92 Setup?
03-25-2009, 04:12 PM
#1
How much HP differance between LS6 Intake &TB and a Fast 90/90 or 92/92 Setup? I was woundering how much differance there is HP wise between the LS6 stock intake and a Fast 90/90 or 92/92. Is it really worth the extra Cash to drop 1,000 bucks on? What also are the differance in ET's?
03-26-2009, 02:00 AM
#3
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What is the application? On a stock motor, it is minimal. As with most things, the bigger you go with heads, cubes, cam etc. the more crap like that starts to make bigger differences. It is all about finding the bottleneck. For a stock cam motor with headers, an LS6 intake is great. IMO not worth going FAST unless you really have to have ever last little bit of HP.
03-26-2009, 07:11 AM
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gains on a moderate cam only engine
was as damn close to an apples-to-apples comparison as i could get.
i say it was worth it!!
5-10hp and tq over the entire rpm range
~18hp and 12ftlbs of torque peak
lowered my peak torque by 500rpm
hp still peaked at 6300rpm
was as damn close to an apples-to-apples comparison as i could get.
i say it was worth it!!
5-10hp and tq over the entire rpm range
~18hp and 12ftlbs of torque peak
lowered my peak torque by 500rpm
hp still peaked at 6300rpm
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03-26-2009, 11:10 PM
#11
What is the application? On a stock motor, it is minimal. As with most things, the bigger you go with heads, cubes, cam etc. the more crap like that starts to make bigger differences. It is all about finding the bottleneck. For a stock cam motor with headers, an LS6 intake is great. IMO not worth going FAST unless you really have to have ever last little bit of HP.
gains on a moderate cam only engine
was as damn close to an apples-to-apples comparison as i could get.
i say it was worth it!!
5-10hp and tq over the entire rpm range
~18hp and 12ftlbs of torque peak
lowered my peak torque by 500rpm
hp still peaked at 6300rpm
was as damn close to an apples-to-apples comparison as i could get.
i say it was worth it!!
5-10hp and tq over the entire rpm range
~18hp and 12ftlbs of torque peak
lowered my peak torque by 500rpm
hp still peaked at 6300rpm
03-27-2009, 08:11 AM
#17
So lets just say I wanted to keep my car strictly a bolt-on car only.
I have the stock cube'd LS1-
LT headers, A nice cat-back, lid, larger maf and maybe some gears.
Which intake manifold would be the best for me? What can I expect from the 92/92?
I have the stock cube'd LS1-
LT headers, A nice cat-back, lid, larger maf and maybe some gears.
Which intake manifold would be the best for me? What can I expect from the 92/92?
03-27-2009, 10:50 AM
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tough to answer.
you'd probably be fine with just going the LS6 and ported stock TB route. they are dyno proven 7-10rwhp on a bolt on car. and the ls6 can be had for ~$300.
if you have the coin...the FAST might not be a bad upgrade. but stock cubes and stock cam might not show the gains that are proven with cam only and h/c engines.
there are only a few dyno tests to show real world gains by swapping on a stock cam engine.
i think someone did it on a vette and gained 20hp...but i'm not sure that was same day/same dyno.
for an educated guess, i would say on a bolt on, stock cammed car...you'd see 7-10rwhp with an LS6, and probably only about 5-7hp more with the FAST over the LS6.
my ported FAST on a cam only engine really didn't start to shine untill >5500rpm. and my cam peaks at 6300.
while i DID pick up power across the entire rpm band (both hp and torque) it was small, 5-10hp or torque. but in the peak rpm i gained almost 20hp.
i'm guessing this shows the rpm range of the LS6, but since you're stock cam you're not really reving much past 6100 or 6200rpm.