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Old 03-20-2013, 12:35 PM   #11
TerraPhantm
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Join Date: Feb 2008
Location: Mountain Top
Posts: 5,977
My Ride: 2005 M3 Coupe
Quote:
Originally Posted by lab rat View Post
I just tested my compression/leakdown. Now I'm trying to find some comparison numbers that will help me estimate my compression ratio.
What numbers did you get, dry/wet, cold/warmed up?
Compression tests don't really match the theoretical compression values. At sea level, an engine with a 10.2:1 compression ratio should theoretically achieve 370psi. I've never seen a compression test register much above 200 psi
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