TwinTurbo.NET: Nissan 300ZX forum - Compression test results
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Subject Compression test results
     
Posted by Bankruptbirch7 on March 26, 2026 at 12:47 PM
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Message I did a compression test on my motor the other day. My results are the following.

Cyl 1: 120pis
Cyl 2: 140psi
Cyl 3: 165psi
Cyl 4: 155psi
Cyl 5: 135psi
Cyl 6: 150psi

I know some of those numbers ARENT great, especially since I wanted to see if I could boost my NA motor. I haven't done a wet test yet but just in regard to the lower numbers, would it be worth rebuilding to hold boost? or just buying a TT motor with all the other parts id need to run it?

     
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