Will going from a 1.5mm metal headgasket to a 1.1 make a big difference in comp?
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JimmyJames1
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Will going from a 1.5mm metal headgasket to a 1.1 make a big difference in comp?
Going to be going with a FPBig28 for my SR and I'm wondering if I should ditch the 1.5mm metal headgasket and get a 1.1 since I'm not running a huge turbo? Will it raise compression significantly?
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s13sr20chris
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Re: Will going from a 1.5mm metal headgasket to a 1.1 make a b ... (JimmyJames1)
stock gasket =1.1mmstock comp =8.5to1new gasket =1.5mmnew comp =8.2to1this assumes stock bores, pistons, and stuff.
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s13sr20chris
- Posts: 4148
- Joined: Tue Jun 10, 2003 9:32 am
- Car: '89 Nissan S13 w/redtop running 13psi and not leaking fuel anymore
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Re: Will going from a 1.5mm metal headgaske ... (s13sr20chris)
i guess i should add that i think 8.5to1 is plenty low. i would never ever go lower than stock compression on a sr20det. i know the gtir has lower compression but i would not want that personally. i intend to have 9.0to1 when my motor is built. i also dont like thick head gaskets. personally i say get a good metal gasket as thin as you can get and set your comp the right way with pistons.
Re: Will going from a 1.5mm metal headgaske ... (s13sr20chris)
s13sr20chris wrote:i guess i should add that i think 8.5to1 is plenty low. i would never ever go lower than stock compression on a sr20det. i know the gtir has lower compression but i would not want that personally. i intend to have 9.0to1 when my motor is built. i also dont like thick head gaskets. personally i say get a good metal gasket as thin as you can get and set your comp the right way with pistons.