OK, I'll start searching.
But one thing to keep in mind about these engines, is they were essentially
designed to run in a pretty narrow RPM range. They found that manifold,
both intake and exhaust, and valve design was very important. In those
areas in particular, they set the standards in that time period. Sometimes
in the testing phase, running at low RPM's the gas mix spewed out the carbs
so badly they were concerned about blowing up the engine/dyno test room!
New standards in cam/valve overlap???
Paul A
----- Original Message -----
From: "Robert E. Shlafer" <pilotrob@webtv.net>
To: "Paul Asgeirsson" <PAsgeirsson@worldnet.att.net>; "derf"
<derf247@gmail.com>; "Jacques Le Clainche" <hobbycars@cox.net>
Cc: "Spridgeteers" <spridgets@autox.team.net>
Sent: Sunday, March 11, 2007 3:37 AM
Subject: Re: Electronic ignition question
> Paul....
>
> Aircraft piston engines which powered the Beech Barons I used to fly had
fixed timing
> set at 28 degrees BTDC & used a "vibrator" (retarded spark) for starting.
>
> If you ever drag out that number where they settled on a timing figure for
the Climax motor, I'd love to know what it was.
>
> Cap'n. Bob '60 :{)
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