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(Jack accidentally sent this only to me
but asked me to forward it to the group.)
From: J.M. Hirsch
[mailto:[EMAIL PROTECTED]
Sent: Friday, August 04, 2006 8:31
AM
To:
Subject: Re: [COUPERS-TECH] HALT
testing
Interesting Ed,
I am looking at the Continental Operator's manual. I do not see a torque
curve, only HP and BMEP (in PSI) . If I assume BMEP is related to peak
pressure in the cylinder, perhaps it is equivalent to torque. In my C 85
peak HP is at 2550 RPM - where it reaches 85 HP and the curve stops - it is
pretty linearly increasing up to that point. Peak BMEP is at 2450 RPM but
is essentially flat from 2300 to 2550. From this I might conclude that
torque is also flat over this RPM range and therefore the HALT exercise is not
a big deal.
BUT - I am not a mechanical engineer so I am full of speculation on this - if
there are any out there that really understand torque and BMEP please chime in.
Jack Hirsch
N3667Q - 415 C
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