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(searched) stock b18b compression ratio?

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Old 04-06-2007, 04:16 AM
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Default (searched) stock b18b compression ratio?

stock b18b compression ratio?
Old 04-06-2007, 05:38 AM
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Default Re: (searched) stock b18b compression ratio? (youknowimwhite)

145Hp 127Trq 9.4 Compression (JDM)
142Hp 127Trq 9.2 Compression (USDM)


Pulled the numbers off of hmotorsonline.
Old 04-06-2007, 02:10 PM
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Default Re: (searched) stock b18b compression ratio? (CleanLikeJdm)

im looking more for psi when i go to do a leak down test
Old 04-06-2007, 02:24 PM
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Default Re: (searched) stock b18b compression ratio? (youknowimwhite)

then you didnt ask the right question

anywhere from 0-10% leakdown is acceptible
Old 04-06-2007, 04:39 PM
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Default Re: (searched) stock b18b compression ratio? (youknowimwhite)

ok lets simplify my question... how many psi should it be reading?
Old 04-06-2007, 05:16 PM
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Default Re: (searched) stock b18b compression ratio? (youknowimwhite)

are you doing a compression or leakdown test?

a compression test the numbers themselves arent as important as the numbers from each cylinder being within 10-20psi of each other. just make sure you do the test with the engine warm and throttle wide open.
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