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what compression ratio to run in a b18c1?

Old 06-26-2003, 01:26 PM
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Default what compression ratio to run in a b18c1?

We're puttign our GSR block back together now, we've pinned the sleeves, have a new crank (the old one got taken out by a bearing), we have eagle H-beam stock length rods, and will be going with some ross pistons, the head is going to be basically stock right now, maybe a little porting for more flow, we want to aim for about 300-325 Bhp in the near future, and then go from there, what is a good comp ratio to go with? 8.5, 8.8, or 9? we're going to be using a t3/t4 setup, we just haven't figured out the exact trim yet, thanks in advance, adn also if anyoen has any suggestins or cmments, feel free to lend them
Old 06-26-2003, 06:14 PM
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Default Re: what compression ratio to run in a b18c1? (FBTuning)

I wouldn't go any lower than 9, unless you wanna feel pretty slow when ur not under boost... just my .02
Old 06-26-2003, 06:18 PM
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Default Re: what compression ratio to run in a b18c1? (FBTuning)

9 - 9.5 will work great for your HP goals and not kill you out of boost...
Old 06-26-2003, 06:25 PM
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Default Re: what compression ratio to run in a b18c1? (GSR_Hacker)

go with 9.5:1
Old 06-26-2003, 08:51 PM
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Default Re: what compression ratio to run in a b18c1? (9psiTurboSI)

I like 10:1, if you have a good tuner, I wouldn't worry running 10:1 CR


stan
Old 06-26-2003, 08:56 PM
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Default Re: what compression ratio to run in a b18c1? (Flamenco-T)

also a modified combustion chamber ala endyn mods & rollerwaves wouldn't hurt to reduce detonation problems
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