DeTomaso Mailing List: April 98, Message #180

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From: JDeRyke <JDeRyke@aol.com>
Subject:Re: Re: Fuel octane boosters
Date: Thu, 2 Apr 1998 23:37:21 +0000

Avgas works to control detonation on 8" dia cylinders in airplane engines by
having a very slow burn rate. In smaller dia, high-revving motors, its still
burning nicely when the exhaust valve opens! I saw an early Triumph 650
running 115/145 avgas, trailing a 5 foot flame from both straight pipes. This
did not endear him to the cops, needless to say. The slow burn rate seems to
cause overheating and tempts you to over-advance the ignition. Plus, if the
Law catches you, they'll likely nail you for estimated unpaid road taxes on
the for-airplane-use-only avgas. Other than that,....         J DeRyke
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