US standard conversion chart for lbs -> HP :-)

[glenahan@notes.cc.bellcore.com]

>>I seem to remember a insructor at the BMWCCA drivers school explaining to
the
>>class the 7 pounds was equivilent to 1 hp.  IE, a car that was 70 lbs
lighter
>>would seem to have 10 more hp.
>>Kwattro

Let's do some math.  We'll assume a 2500 lb auto with a 1-HP motor.
According to this instructor, lightening the car to 2430 lbs would make
essentially the same difference as raising the HP to 11, correct?

Lessee:
We have 3 options:

#1 = 2500 lbs / 1 hp = 2500 lb/hp
#2 = 2430 lbs / 1 hp = 2430 lb/hp
#3 = 2500 lbs / 11 hp = 227 lb / hp

Clearly the rule of thumb only applies to the specific car he was
describing, within a very narrow range of change.  You cannot generalize,
as shown above.

Grant