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can someone help me out with a compression ratio?
Posted: Sun May 11, 2014 1:57 am
by cj91legss
I googled a compression ratio for an EJ20T short block (usdm 02-05) and 22t heads with 22t gaskets. Anyone wanna shed some light on the compression ratio?
Re: can someone help me out with a compression ratio?
Posted: Sun May 11, 2014 3:06 am
by 86BRATMAN
According to the twe matrix looks like 8.55:1, with 1.9mm quench height.
Re: can someone help me out with a compression ratio?
Posted: Sun May 11, 2014 4:31 am
by cj91legss
Thank you. Noticed my 91 has a bit more "unmph" than my 93 stock ss.
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Re: can someone help me out with a compression ratio?
Posted: Mon May 26, 2014 9:01 pm
by cj91legss
Just to add some information, this build is actually quite nice. I have put down 225 miles on this tank of gas and still have a quarter tank left.
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Re: can someone help me out with a compression ratio?
Posted: Tue May 27, 2014 3:15 am
by mike-tracy
Yeah buddy! Wish my ej20 wasn't already a 9:1 CR shortblock or I'd do the same.