Chuck_Harbert@arkwright.com wrote:

Paul, I've been reading the correspondence on peripheral ports with
interest. I talked to Skip Gorman who raced this type of engine and he said
that this was a full race type application, if you're planning on making
250hp. It barely runs under 6,000 rpm, makes a tremendous amount of noise,
and gulps fuel like there's no tomorrow. It also takes very tuned intake
and exhaust systems to get this kind of HP. The torque also is not much
under 6K. I thought Everitt was using a PP engine and that he was looking
at about 200 hp using butterfly valves to make it idle. He spent a bunch of
time developing a compatible airplane engine.

All this doesn't sound to me like a good (reliable, econmical, reasonably
priced) airplane engine. If you want 250 hp out  of a 13B, why don't you
just turbo it? Then it's good for altitude speed, as well. Couldn't stand
to keep quiet.

I don't totally agree but Robin is bugging me to go out to dinner.
More later. :-) 

Paul Lamar
 
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