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re: TR4 compression ratio

To: triumphs@autox.team.net
Subject: re: TR4 compression ratio
From: Silikal@aol.com
Date: Wed, 4 Sep 1996 12:37:36 -0400
David Rupert writes:
>my little shareware compression calculator program says that I
>can go up to a 10.3 compression ratio and get away with 94 octane fuel.
>However, an article published in Grassroots Motorsports magazine last
>month said that their VW GTI detonated a set of pistons at a 10.0 comp.
>ratio because they were running less than 100 octane.

I noticed that, too.  They also said the Rabbit runs fine on Amoco Premium.
I think it's probably more due to fuel/air ratio (too lean) and timing (too
far
advanced).  Since you can control both of these on the TR, I wouldn't worry.

Dave Williamson  (silikal@aol.com)  Spits in bits


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