Sender: <marv@lancaironline.net> (Marvin Kaye)
To: flyrotary
Date: Fri, 23 May 2003 02:24:17 -0400
Message-ID: <redirect-2360234@logan.com>
Reply-To: <alventures@email.msn.com>
From: "Al Gietzen" <alventures@email.msn.com>
Subject: RE: [FlyRotary] Re: FS: New Turrentine built 13b FS- great deal!
Organization: ALVentures
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Very very
reliable 190-200 hp.
---------
And where does this number come from?

Al
---------------

===>  Bruce recently reworked my engine, with 9.7 rotors, and a street
port.
He estimated 200 HP at 6200 RPM, and 230 HP at 7500 RPM.  He doesn't
dyno
the engines when he builds them, but customers have likely tested a few.
It's all a bit of an estimate, but the numbers sound pretty reasonable
to
me.    

Pardon my questioning, but until you see the dyno data, it is just a
guess.  I'm sure it's possible, I just don't think it's helpful tossing
numbers around that haven't been measured.  Personally, I can't quite
imagine being an engine supplier without having access to dyno to test
the product.

Of course you can lie with data too.  I have a dyno chart from Altrudyne
showing torque, hp, and BSFC where the hp curve was apparently
arbitrarily raise so the hp peaked out at 100 hp per rotor at 6000.
Computing the hp from the corresponding torque gives 89.  Go figure.

Al