<VV> Corvair tuning

Dennis Pleau dpleau at wavecable.com
Sun Nov 8 23:08:30 EST 2015


I realized it is easy to compute.  Assuming, the heads haven't been milled
and the engine hasn't been bored, you will have increased the compression
ratio by 0.2%. With my assumption, your compression ratio went from 8 to 1
to 8.16 to 1.

dp

-----Original Message-----
From: VirtualVairs [mailto:virtualvairs-bounces at corvair.org] On Behalf Of
Dennis Pleau via VirtualVairs
Sent: Sunday, November 08, 2015 7:47 PM
To: virtualvairs at corvair.org
Subject: Re: <VV> Corvair tuning

The '61 is a 145 CID engine. '64 engines are 164 CDI.  Off the top of my
head without doing some research and math, I'm guessing you didn't change
the compression ratio much by switching those heads.  What you need to do is
find the individual cylinder head volume for each head and see how they
match up.

dp 





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