Could be a lot more or a lot less, and that's the problem with rear wheel
dynos. It's not predictable and therefore can't be adjusted for. Beyond
tire slip, hysterisis loss in the tires, and drivetrain losses there is
also little control over engine temperature. There's no good way to relate
them, for that matter there's not much value to looking at two different
cars on two different dynos with two different specific densities of the
surrounding air. Other than bragging rights.
-----Original Message-----
From: racespit@mail.netzero.net [mailto:racespit@mail.netzero.net]
Sent: Thursday, August 09, 2001 2:16 PM
To: eisandiego@aol.com; fot@autox.team.net
Subject: RE: Basic Question...Expected Hp Difference
I have heard you lose about 15% from flywheel to rear wheels, but of
course I am sure that varies due to car, weight of driveshaft components,
etc.
Keep Triumphing,
Susan :)
Original Message:
-----------------
From: EISANDIEGO@aol.com
Date: Thu, 9 Aug 2001 15:23:47 EDT
To: fot@autox.team.net
Subject: Basic Question...Expected Hp Difference
What would be the typical expected % difference in hp from a engine
tested by itself in the lab dyno verses one tested as installed in the car
at
the rear wheels?
Cary
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