Trouble selecting Pistons for Comptech Setup (CR)
#21
Why has nobody mentioned that using the thicker head gasket will make less power at 9:1 than a stock headgasket and 9:1 pistons. It will also be more prone to detonation than the stock headgasket and 9:1 pistons. The quench will be much better with the stock headgasket, etc... The thicker headgasket is a bad idea in general, and is only used if you have no other option when compared to a motor built for the right compression.
9-9.5 to 1 would be perfect and should give a lot of trouble free miles at 12psi and leave you with some amount of headroom for slightly off tunes, etc...
FYI this is what I building the racecar to be. (9:1 and 12psi max). This isn't a bad combination at all. A lot of factory turbos are 9:1 and about that boost.
Bill
9-9.5 to 1 would be perfect and should give a lot of trouble free miles at 12psi and leave you with some amount of headroom for slightly off tunes, etc...
FYI this is what I building the racecar to be. (9:1 and 12psi max). This isn't a bad combination at all. A lot of factory turbos are 9:1 and about that boost.
Bill
#23
really? various individuals, as well as inlinepro, have been telling me that 10psi on stock compression is pushing it.
As far as power drop off-boost, YES, you will feel it with 9:1 CR.
What sleeves are you going with? I hope not the stock FRM, as your piston selection will be greatly limited...
I believe you can get CP pistons in whatever CR you want from Laskey Racing... Note the "Honda Custom bore and compression ratios" category.
http://www.laskeyracing.com/shop/cppistons.htm
John
#24
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I love this forum, and the people who contribute to it.
My set of JE 9:1's will be here this week. I am trying to get in contact with a member on here who offered to sell me a set of JE 9.8:1's, but if that falls through, I'll go with the 9:1's.
My set of JE 9:1's will be here this week. I am trying to get in contact with a member on here who offered to sell me a set of JE 9.8:1's, but if that falls through, I'll go with the 9:1's.
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Originally Posted by jwa4378,May 5 2008, 11:15 AM
What sleeves are you going with? I hope not the stock FRM, as your piston selection will be greatly limited...
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