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low compression b18c/b16

Old 01-18-2018, 01:56 PM
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Default low compression b18c/b16

Hey so today I borrowed a compression gauge from autozone to check my compression and I'm thinking I might have fucked up during the assembly of my engine. The numbers I got are roughly #1-150psi, #2-157psi, #3-160psi, #4-166psi I ran out of time and did a wet test only on cyl #2-225psi, I think I might have poured to much oil I put 1 capful of oil from the big jugs of mobil 1. I was doing research and read that the compression is usually lower than normal after a rebuilt until the rings set also that running big cams lowers the compression. The engine has roughly 40miles so far, and I don't think is burning oil there is no white smoke coming out from the exhaust. Would the compression rise after is done breaking in?
My set up is the following
B18c block sleeved and bored to 82mm
9.0:1 CP pistons
ls crank
B16 head with skunk2 pro2 cams and valve train
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