9:1 IS already low compression, at least by normal American hot rod
standards. I'm more familiar from a muscle car viewpoint (as opposed to
putting superchargers on a B engine) but on American hot rod engines, they
sometimes run as high as 12 and even 13.5:1 compression ratios on a normally
aspirated hot rod engine. When putting a GMC 671 supercharger on, say a
small block Chevy engine, a 9:1 compression ratio is deemed acceptable. This
is an easily verifiable fact. Why wouldn't the same hold true on a stout,
well built B engine?
-Jerry Erbesfield
73 B Black Beauty roadster
jerbesfield@mediaone.net
website- http://people.atl.mediaone.net/jerbesfield
-----Original Message-----
From: owner-mgs@autox.team.net [mailto:owner-mgs@autox.team.net]On
Behalf Of Maynard Hirsch
Sent: Sunday, February 10, 2002 4:39 PM
To: mgs@autox.team.net
Subject: RE: Supercharger
If I was planning to put a supercharger on an engine, I would want to make
sure that the comression ratio is correct. I believe (may be wrong) that
you
have to use low compression pistons so that you w't blow the headgasket.
The
compression with the supercharger will be way above stock anyway.
Maynard HIrsch
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