Engine compression and psi variance...
Joined: Oct 2010
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From: North Central
Engine compression and psi variance...
I'm just looking for some insight on the amount of compression ratio in a cylinder and what lowering it for FI does in terms of PSI. If stock compression is 10.3:1 for a 2003 engine - what would it have for a compression test rating in PSI? As we drop the compression ratio in a built motor for FI down to 8.8:1 - what is the expected PSI in this range for a healthy newly built engine. In between these ratios is there a consistent drop in PSI per engine? Thank you, appreciated.
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Mad A
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Dec 8, 2015 01:45 PM
