Aluminum intake?
Thread Starter
Pro
Joined: Aug 2010
Posts: 578
Likes: 0
From: Texarkana Ar
Aluminum intake?
Been trying to decide on which intake to go with for my boosted 99 FRC, expected horsepower after engine build should be around 900hp. Seen the Holley aluminum intake for the LS1 and havent heard many people using them. Any one have any experience with these intake manifolds? http://www.jegs.com/i/Weiand/925/300-111/10002/-1
AMP Racing
Joined: Aug 2006
Posts: 10,756
Likes: 589
From: Washington TWP NJ
2023 C5 of the Year Finalist - Modified
2017 C5 of Year Finalist
St. Jude Donor '09-'10-'11-'12
People don't use them because they are heat sinks and they don't perform any better than a FAST.
Pro
Joined: Dec 2003
Posts: 654
Likes: 1
From: chandler az
See GM High-Tech Performance Sept 2011 page 26. Jay McCardle's mid-8 second vette. They make no mention of the intake in the article, but from the picture it looks like an LS2 manifold with a 90 mm Nick William's throttle body (throttle body is mentioned). I've heard of LS2 manifolds being opened (they are two pieces) and ported out, but you can't tell from the picture if the manifold is modified. To me, it just proves that on a FI car the intake is not as critical.
I've also read that the FAST cannot take a backfire. One healthy backfire and the manifold is done.
I've also read that the FAST cannot take a backfire. One healthy backfire and the manifold is done.
