civic type R compression

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Sep 14, 2005 | 06:45 PM

ganjafarmer143

Thread Starter

Joined: May 2005

Posts: 72

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From: Miami, FL, USA

civic type R compression

hey what is the stock compression on the civic type R (B16b engine)? and also if your compression goes to 12.5 to 1 do u have to use race gas? how true is this?

Sep 14, 2005 | 08:53 PM

RudeBwaiSi

Junior Member

Joined: Jul 2005

Posts: 774

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From: Palm Beach, FL, US

That CR I believe is 10.8:1. If you run a CR of 12.5:1, you could perhaps use at least 93 octane with a good tune. That is pushing the limits in my opinion still.

Sep 14, 2005 | 09:06 PM

2k.civic.si

Honda-Tech Member

Joined: Jun 2004

Posts: 3,915

Likes: 1

From: los banos, ca

Re: (RudeBwaiSi)

i ran 12.7:1 on 91 with stock timing maps from a p30 ecu...this was with ctr cams so i know cylinder pressures were high due to low overlap as compared to aftermarket cams