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Re: A question for the experts.....

To: "Hugh Barber" <tr6nut@sbcglobal.net>, <fot@autox.team.net>
Subject: Re: A question for the experts.....
From: "kas kastner" <kaskas@cox.net>
Date: Thu, 24 Feb 2005 20:15:08 -0800
You must add the gasket volume to the head combustion chamber volume.
  ----- Original Message -----
  From: Hugh Barber
  To: fot@autox.team.net
  Sent: Thursday, February 24, 2005 7:49 PM
  Subject: A question for the experts.....


  Over on one of the other Triumph lists, we've been having a discussion
about
  compression ratios and cylinder volumes. There has been a question raised
  that I thought I would bring to this list for a more definitive answer.  In
  the Triumph TR-250/TR-6 Competition Prep Manual, page 14, there is a
  paragraph that reads:

  "The cylinder head gasket, when compressed, has a volume of approximately
  3.7 cc.  The finished cylinder head with valves seated should have a volume
  of 41.6 cc for 10.25 C.R. with zero deck clearance.  The cylinder volume
for
  12.3 to 1 C.R. with zero deck clearance is 33 cc."

  The question is: Do the cylinder head volumes quoted in the paragraph (41.6
  cc and 33 cc) include the referenced 3.7 cc for the head gasket? (or is
that
  added onto the quoted volumes?)

  Thanks,

  Hugh Barber
  Hollister, CA
  '73 TR6

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