Mark:
The Mazda pistons are larger in diameter than the TR6 pistons,
so you need to
bore out the block. This is how the displacement goes up.
What you have described will indeed lower the compression ratio,
and will
not increase the displacement. You are correct when you say that
displacement is
swept volume. Compression ratio is one plus the ratio of swept volume to
combustion
chamber volume.
Cheers,
Vance
-----Original Message-----
From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net] On
Behalf Of Mark Hooper
Sent: Tuesday, September 07, 2004 5:59 AM
To: 'Gene Holtzclaw'; 6pack@autox.team.net
Subject: RE: building the TR6 engine
Hi Gene:
I just know I'm going to regret asking this question, but I don't see
how
different pistons could increase the swept area of the engine. I can see
how
lower crowns on the pistons would make volume of the cylinder larger
when
the pistons are at the bottom, but wouldn't that just reduce the
compression
ratio dramatically as well?
Mark
1972 TR6
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