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RE: Compression Ratios

To: "'Alan Lemen'" <ralemen@cableone.net>, <spitfires@autox.team.net>,
Subject: RE: Compression Ratios
From: "Gene Eighmy" <w4eae@netzero.net>
Date: Wed, 26 May 2004 10:46:58 -0500
I don't think the '76 US market 1500 had a 9:1 compression.  It did use
a flat top piston which is where the confusion lies, but the cylinder
head was higher to lower the compression.  Compression had to be lowered
to meet US emissions.  Can someone from the old country confirm this?  

Gene Eighmy

> Flat top pistons and emissions are the answers I believe. I have a 76
> myself.
> 
> On Wed, 26 May 2004 14:11 , drsnydr@comcast.net sent:
> 
> >Does anyone know why the '76 Spitfire 1500 (fed.) had a comp. ratio
of
> 9.00:1
> and all of the others from '73-80 were 7.50:1?  How'd they accomplish
that
> and
> why go back?





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