Horse Power Ratings.

[Beebe]

I'm curious how horse power is rated now days. For example, a Z06 Corvette has something like 500 hp. Is that to the rear wheels? If I remember correctly, hp was measured off the crank back in the day. I believe I read it somewhere and because my dad has a 1967 Corvette with a 327 cu in V8. It claims to have 300 hp. I have driven it, and Rossane Bahr could walk it of the line after an ice cream truck. My dad's Vette is SLOW!!! It does however only have a 2spd Powerglide Auto tranny, but if it had 300 hp it should be quicker. I owned a 1996 TA and it was at 285 hp, and that hauled pretty good.

Just curious if cars now days are rated to the rear wheels, or some other formula.

Thanks,

Dave

[rattrod30]

The 327 was rated at the crank , as are modern engines , but now all accessories have to be running full tilt to get the ratings.