dave1massey at cs.com
Mon Oct 15 11:14:47 MDT 2018
It's all in the head. The combustion chambers in the later head are larger. Since compression ratio is (Displacement + Combustion Chamber Volume)/Combustion Chamber Volume a larger Combustion Chamber Volume will give you a smaller number.
You can take a later model head and shave it down reducing the Combustion Chamber Volume and increase the CR. It is a fairly common practice among folks who modify their cars for performance.
From: Carl Carlson <actionsl at att.net>
To: triumphs <triumphs at autox.team.net>
Sent: Mon, Oct 15, 2018 11:57 am
Subject: [TR] Compression
Can anyone tell me where the TR250 & early TR6 engine gets it’s high compression as the bore & stroke is the same as the latter engine?Carl** triumphs at autox.team.net **Donate: http://www.team.net/donate.htmlArchive: http://www.team.net/pipermail/triumphs http://www.team.net/archiveUnsubscribe/Manage: http://firstname.lastname@example.org
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