----- Forwarded Message -----
From: "Greg Solow" <Gregmogdoc@surfnetusa.com>
To: "davehogye" <dlhogye@comcast.net>
Sent: Wednesday, September 12, 2012 3:01:40 PM
Subject: Fw: [Fot] Never be beaten by equipment
----- Original Message -----
From: "Greg Solow" <gregmogdoc@surfnetusa.com>
To: <jhhasty@gdhs.com>; <tr4racing@googlemail.com>; <fot@autox.team.net>;
"fubog1" <fubog1@aol.com>
Sent: Wednesday, September 12, 2012 1:06 AM
Subject: Re: [Fot] Never be beaten by equipment
> AE "Hepolyte" pressure cast 87mm pistons were set up by AE with .005"
> clearance at the bottom of the skirt at 90 degrees to the pin. Most
> forged pistons will require more than that.
> Kas has mentioned his technique of warming the piston in boiling water,
> measuring the skirt diameter at that temperature, then adding (if I
> remember correctly) .003" to the "hot size" of the piston to determine the
> correct bore size.
> In the engine we built that scuffed skirts 3 times in succession, it
> always ran fine on the dyno and it high rpm. It scuffed the skirts idling
> in the garage, running slowly around the pits, and after a hard run on
> curvy mountain roads, driving slowly on city streets, then pulling into a
> parking low. The culprit was the low rpm not putting enough oil onto the
> cylinder walls of an engine with "steel billet rods" that had no provision
> for squirting oil onto the cylinder walls at low rpm.
>
> Greg Solow
>
> The Engine Room
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