Pretty common stuff with a camshaft with lots of overlap. Good set of
velocity stacks usually helps retain that standoff a bunch.
----- Original Message -----
From: "Jack W. Drews" <vinttr4@geneseo.net>
To: <fot@autox.team.net>
Sent: Tuesday, April 09, 2002 4:10 AM
Subject: standoff
> "Standoff" is the term used to describe the condition of a cloud of
> gasses hanging outside the inlet of the carburetors. We most often see
> it on SU and Weber-carbureted cars on cool, foggy mornings. It is
> usually attributed to sonic resonance in exhaust systems, where the wave
> bounces back and hits the exhaust valve at the moment of overlap.
>
> I had a TR4 on the chassis dyno recently that experienced a higher
> degree of this than I have seen before.
>
> Has anyone else experienced this and / or dealt with it?
>
> --
>
> uncle jack
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