hp gains w/ FAST intake???
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Teching In
Joined: Oct 2006
Posts: 33
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From: TEXAS
hp gains w/ FAST intake??? Ok so i have a 00 SS with: SLP Air Lid, Pacsetter LT headers, Pacsetter Off-Road Y-pipe, Loudmouth Catback, Shaner3 port and polished TB, ASP UD pulley, LS6 intake manifold, Smooth bellows, FM-13 Cam 113lsa, PRC Dual Valve Springs w/titanium retainers, Chromoloy Pushrods. The car dynod at 385 to the wheels at MTI. My question is what kind of hp gains would i be looking for by putting the FAST intake on.
You lost a good bit going through that 9 inch over the FAST though because from what I have been reading the sap alot of power. So you picked up alot more than that I guess, because your baseline would have been lower.
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I went from 398RWHP/357RWTQ with a ported TB/LS6 intake to 427/380 after adding an ASP U/D pulley, 90/90, and changed the tune a little bit. So if I had to guess I would say around 15-20RWHP for just the 90/90.
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It's been shown a couple times that the ls6 intake can keep up with stock heads pretty well. It's when you go to a better set of heads that the FAST intake will make a difference over the ls6.
TPIS intake I've seen better gains from the modified LS6 intake from TPIS. They cut the stock opening off and epoxy a 90mm opening. They also recommend running a 90mm to get the most out of it. So it shows most of the gains from the Fast intake is from the 90mm opening and a 90mm TB. That's probably why the 78mm Fast doesn't show hardly any gains. Plus the TPIS intake cost less.
But i would think that on a 427 OR larger the Fast with it's 20% more runner volume would be the better choice. And also FI as well.
But i would think that on a 427 OR larger the Fast with it's 20% more runner volume would be the better choice. And also FI as well.
TECH Enthusiast
Joined: Jan 2008
Posts: 504
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From: Michigan
Yep thats why I did the TPIS rought. But if your using any kind of forced induction its better to go with a stronger intake.
I look at it this way you need a good air supply and be able to use it to get the most of of an intake. Hp #'s on a dyno are not going to show you what its going to do at the track but it does make you feal good to see a HP gain for your investment.
I look at it this way you need a good air supply and be able to use it to get the most of of an intake. Hp #'s on a dyno are not going to show you what its going to do at the track but it does make you feal good to see a HP gain for your investment.
