question on HP and how its measured (LAC)

[Tony Lum]

Hi gang,

Since we have a discussion on horsepower today, I was wondering where
manufacturers are specifying the rating.  Is it at the crankshaft or at the
wheel?  If its at the crankshaft are the manufacturers measuring the output
on a test stand?

For reference, some of you may recall that I ran my urq on the 4 wheel dyno
at ATP a while ago and recorded a max of 152.2 HP at the wheel.  In
contrast, a stock A4 1.8T rated 150HP, measures only 99 at the wheel.  On
the other hand a modified S4 (2.7 V6 bi-turbo) measured 295 HP at the wheels.

Regards,

-Tony
urq #900302