The Ford Barn - Can anybody help with a comp. ratio?

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Vanspeed

07-18-2019 10:20 PM

Can anybody help with a comp. ratio?

I have a head that measures 120cc. From what I have calculated it is around 7.5:1. Stock A engine.

Bruce of MN

07-19-2019 04:27 AM

Re: Can anybody help with a comp. ratio?

What volume of the piston is above the deck? I think that has to be deducted from the 120cc.

Nosetime

07-19-2019 07:32 AM

Re: Can anybody help with a comp. ratio?

Buy Jim Brierly's book.

Dick Steinkamp

07-19-2019 09:51 AM

Re: Can anybody help with a comp. ratio?

You will need these measurements in order to calculate CR...

http://www.csgnetwork.com/compcalc.html

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