Built motor Compression test results

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Sep 5, 2013, 02:25 PM

fabcas311

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Built motor Compression test results

We just did a compression test on my built 2.0 motor 9:5:1 results came out cylinder # 1 = 150 # 2 150 # 3 160 # 4 150 Is my motor good? Btw was done on a cold motor....Thanks!

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Sep 6, 2013, 04:23 AM

Fast_Freddie

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numbers sound good for a cold motor... 10% rule...

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Sep 6, 2013, 09:10 AM

TreatsIX

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^ I always heard 15, but regardless looks good!

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Sep 6, 2013, 09:15 AM

badev0

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Mine was 170 cold before first start on new built motor, about 180 after some miles... 10.5ish compression. All within 1 psi of each other.

All depends on the style piston rings you run though.

Last edited by badev0; Sep 6, 2013 at 09:22 AM.