View Poll Results: which heads is better
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AFR or ETP for the APS setup ?
04-15-2008, 07:23 AM
#1
Staging Lane
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AFR or ETP for the APS setup ? my buddy has a TT APS setup in his LS1 with piston and cam only and he want a 700+ rwhp so which heads is better AFR or ETP and what is the best size for the intake and exhaust ?
04-15-2008, 07:32 AM
#2
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Man..................That's like saying here are two beautiful women, which do you want? The red head or the blond. Both are fine choices and you can't go wrong with either.
Last edited by CuNfUzEd; 04-15-2008 at 07:37 AM.
04-15-2008, 07:38 AM
#4
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I am using AFR 225's on a 346" D1SC @ 15.5#'s, car is making 805 rwhp SAE.
Pretty hard to beat. See post by Tony Mamo (AFR)
"Boosted 346" cracks 800 rwhp".
https://ls1tech.com/forums/dynamometer-results-comparisons/897012-boosted-346-w-afr-225-s-cracks-800-rwhp.html
Pretty hard to beat. See post by Tony Mamo (AFR)
"Boosted 346" cracks 800 rwhp".
https://ls1tech.com/forums/dynamometer-results-comparisons/897012-boosted-346-w-afr-225-s-cracks-800-rwhp.html
Last edited by glennd; 08-07-2008 at 07:21 AM.
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04-15-2008, 10:13 AM
#9
I went with afr ,thicker deck supposed to be better for higher boost. Don't plan to go past 20psi ever but a bit of insurance maybe. Also seen lots of fast running boosted cars running the same afr heads. And seen good results on aps test mule with the afr 225s. And afr has links on their website to two big turbo builds shooting for 1000 engine hp both using afr 225s.
04-15-2008, 04:09 PM
#10
I voted for the ETP's, but they have ended up costing more than I originally imagined. The swipe pattern with the stock rockers and ETP pedestall was off, and the use of shims didn't seem to help much. I had to order the Crower rocker arms made for ETP heads, but had to use valve cover spacers to raise the valvecovers, and now will have to clearance a couple of the rocker arms, or take a belt sander to the head.
04-18-2008, 01:14 AM
#14
If you want to make some serious power, these flow 240-260 on the exh
https://ls1tech.com/forums/lsx-parts-sale/899912-new-box-all-pro-race-prepped-heads.html
https://ls1tech.com/forums/lsx-parts-sale/899912-new-box-all-pro-race-prepped-heads.html
04-18-2008, 10:07 AM
#16
If we get some more specs on the bottom end, and what "you" are looking to do with the motor i am sure you will be geting some more responses.
