B27 to 325i whats the compression

Bimmer_man

E30 Fanatic

Join Date: Jan 2013

Posts: 1477
#1

B27 to 325i whats the compression

02-08-2013, 10:37 PM

I am wanting to know the compression ratio with a "i" head swap on an ETA engine? I am not looking to turbo the car its just something i have been wondering.

Float like a cadillac sting like a Bimmer!:)

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MR 325

Moderator

Join Date: Oct 2003

Posts: 37813
#2

02-09-2013, 02:00 AM

You will get varying responses. I say 8:1.

BimmerHeads
Classic BMW Specialists
Santa Clarita, CA
www.BimmerHeads.com
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jlevie

R3V OG

Join Date: Nov 2006

Posts: 13530
#3

02-09-2013, 10:56 AM

8:1 sounds right.

The car makes it possible, but the driver makes it happen.
Jim Levie, Huntsville, AL
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darvo

E30 Addict

Join Date: Dec 2010

Posts: 407
#4

02-09-2013, 04:42 PM

What about with completely flat top pistons and .040 cometic gasket??
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