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Re: [TR] Compression

To: triumphs@autox.team.net
Subject: Re: [TR] Compression
From: Mark J Bradakis <mark@bradakis.com>
Date: Mon, 15 Oct 2018 15:58:54 -0600
Delivered-to: mharc@autox.team.net
Delivered-to: triumphs@autox.team.net
References: <D5A97772-C68C-433F-BA5A-259BF30C6107@att.net>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1
On 10/15/18 9:09 AM, Carl Carlson wrote:
> Can anyone tell me where the TR250 & early TR6 engine gets itâ??s high 
> compression as the bore & stroke is the same as the latter engine?
>
Application       CR    Thickness   CC depth   CC volume

GT6 Mk I        9.50
GT6+            9.25     3.450     0.425       34
GT6 Mk III      9.25     3.32       .47        37
(early)
GT6 Mk III      8.0      3.40       .55        44
(late)
TR250, TR6      8.5      3.55       .60        48.5
TR6 middle      7.75     3.54       .68        55
TR6 late        7.5      3.55       .70        57
TR6 race 1     10.25     3.375      .52        41.6
TR6 race 2     12.3      3.295      .44        33
GT6 race 1     10.75     3.31       .385       30
GT6 race 2     12.75     3.22       .300       24.4

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