HP what is it ?

[LostInTheSouth]

I was looking in the back of my JBG catalog and it says that my 73 bronco with the 302 only has 138 hp is this true ? Pretty sorry for a V8 if you ask me some one inlighten me thanks. ??? ??? ??? ??? ??? ??? ??? :-*

 

[saddlebronc]

I believe that's the year they had to start to put all that pollution control crap on all vehicles. So that's what takes away lots of horsepower from the stock motors.

 

[ken75ranger]

I think they mean at the rear wheels. Better but still not good.

 

[wildbill]

;D ;D ;D You just need to find a stock 69 351W 4V it is 290 from ford and then a cam and headers and ing. ;D ;D ;D Bill 8) :

 

[Henrietta]

This question made me think of something. When did they stop measuring rear wheel horsepower, and go to the flywheel measurement? or was it the other way around? I just remeber that they did it one way years ago and now they do it different.

 

[Skuzzlebutt]

It was right about '73 when they switched from measuring at the flywheel to measuring at the drive wheels. Why did they switch? Maybe a rare moment of honesty from the marketing departments? Maybe people couldn't understand why a luxury model with A/T and A/C was slower than a stripper model with the same HP engine? People wanted real world performance numbers instead of empirical lab data? Or maybe it was 'cause the muscle car wars of the '60s were being replaced by the energy crissis fighters of the '70s.

 

[Broncobowsher]

HP = torque (ft/lb) x RPM
5252

That's the formula. Hore Hp either with RPM (rice) or turque (yankee)

 

[Nuke]

I thought it was the other way around: that they use to quote HP at the wheels and they now quote at the flyweel. Did the switch again, because I'm almost certain most numbers you hear today are at the flywheel.

 

[Skuzzlebutt]

Sometimes in an ad they will say they put a 250 HP engine in their car, but the S.A.E. HP rating for that car will be alot lower. It will not be a 250 HP car.
FWIW, There is no one "legal" way to measure HP. but measuring at the drive wheels IS the industry standard.