lowering compression via headgasket
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Joined: Sep 2001
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From: San Diego, CA, usa
lowering compression via headgasket
Yo,
My ls integra has been built up to 10.5:1 compressoin. Now I want to go turbo because without vtec the N/A power is just not there. Is there a rule of thumb for decreasing compressoin with head gaskets? What increase in gasket thickness equals what reduction in compression? If I can get my compression down to 10 give or take a few thenths of a point, the motor will be very boostable. Advice please?
My ls integra has been built up to 10.5:1 compressoin. Now I want to go turbo because without vtec the N/A power is just not there. Is there a rule of thumb for decreasing compressoin with head gaskets? What increase in gasket thickness equals what reduction in compression? If I can get my compression down to 10 give or take a few thenths of a point, the motor will be very boostable. Advice please?
Honda-Tech Member
Joined: Jan 2000
Posts: 14,500
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From: Sacramento, CA
Re: lowering compression via headgasket (type autox)
You are going to just want to put lower compression pistons back in. High comp pistons + thick headgasket is not the right way to reach a lower compression ratio.
B18C head quench area is more resistant to detonation than the LS head, so do not think 10.0:1 in an LS is necessarily a good idea because GSRs can do it.
Dustin
B18C head quench area is more resistant to detonation than the LS head, so do not think 10.0:1 in an LS is necessarily a good idea because GSRs can do it.
Dustin
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