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Curious about compression ratios
Posted: Tue Jul 06, 2010 7:02 am
by cj91legss
So here's my setup. 22T block, Matching Cometic Head Gaskets 0.51 thickness, and 96 20H TT Heads. I was curious what the compression raio was.
I looked at the EJCALCS page and didn't see that setup on there.
Re: Curious about compression ratios
Posted: Mon Jul 12, 2010 10:37 pm
by wtdash
Did you mean .051 vs. .51 thickness? Or is that mm vs. cm?
Most of the stock EJ turbos make 8-8.5 CR, from what I've seen online. From the EJCALCS "Custom Configurations" list this is probably closest to yours:
Thin SOHC head gasket
Block: MY91 EJ22T
Heads: MY98 EJ25
CR: 8.0:1
My EJ22T/EJ25D project (stock EJ22T HG) is in the 7.4:1 CR range, according to the chart.
Td