Horsepower & Torque

[gutterslide]

i'm a bit confused about tq and hp. the specs for my engine are:


F20A4 133hp /5300rpm 179lb/ft /5000rpm

Horsepower = torque x rpm / 5252

...below 5252 rpm any engine's torque number will always be higher than its horsepower number, and above 5252 rpm any engine's horsepower number will always be higher than its torque number. At 5252 rpm the horsepower and torque numbers will be exactly the same.

if this is method of calculation is accurate, then i should have 170hp/5000rpm?


also, this is a very torquey engine. is that a good thing? it feels like a good thing. i've heard someone say that a true measure of an engine is torque, not hp. is this true? cause if so, i got a great deal. if not, oh well, it's better than a dead stock engine.

thanks in advance.

[NutBucket]

179 from a Honda 4? You're nuts.

quick google search tells me that engine's got 131 ft-lbs.

http://www.clubaccordquebec.com/CAQ/engine/f20a4.htm

[gutterslide]

Originally posted by NutBucket
179 from a Honda 4? You're nuts.

quick google search tells me that engine's got 131 ft-lbs.

http://www.clubaccordquebec.com/CAQ/engine/f20a4.htm

yah, keep searching. you'll find conflicting numbers.

[accordztech]

http://www.accordinglydone.com/engines.php?Series=F

iono if thats true or not, but it may be..but who knows.

[NutBucket]

That's gotta be one hell of a stroke to get 180 ft-lbs. Maybe you should show us where you found your numbers. The burden of proof is upon you, friend

[gutterslide]

Originally posted by NutBucket
That's gotta be one hell of a stroke to get 180 ft-lbs. Maybe you should show us where you found your numbers. The burden of proof is upon you, friend

i'm not saying these sources are any more or less reliable than your source

i think i found the problem. check this first link...
http://www.google.com/search?q=cache...hl=en&ie=UTF-8

it shows 179/5000 torque, and so does the next link...

http://www.google.com/search?q=cache...hl=en&ie=UTF-8

the above link shows "torque (lb-ft)" above the number, but has Nm (newtons/meter) next to the actual number. when you convert the Nm to lb/ft, you get about 131.

and then there's this

?? 18.2kg-m ?? that's only about 120lb/ft ??http://www.google.com/search?q=cache...hl=en&ie=UTF-8


thanks for helping me find my mistake.

[NutBucket]

Heh. If it really did produce 180 ft-lbs I'd be all over then engine

[gutterslide]

Originally posted by NutBucket
Heh. If it really did produce 180 ft-lbs I'd be all over then engine

i was pretty psyched until you shattered my ignorant dreams


care to donate to my H22 fund?

[DrLove'sKuDang]

here we go, nice wishing with that 180 though

http://www.streettuners.com/curve/en...cs.html#accord

[Jarrett]

131 ft./lbs. sounds more like it. It's a pretty torquey motor but I'm not giving it that much credit. Anyways, to answer your original question, torque is the amount of work a mechanical system(your motor) can do over a given distance. Work being lbs., and distance being feet. There are other units for this measurement but we're dealing with the English system here. So, 131 ft./lbs. of is how much work your engine can do. Horsepower is a unit of rate, or how much work can be done by a mechanical system over time. So, if your motor has 133 hp then your motor can your motor can do max work at 5300 rpm. All in all, horsepower does not really exist(I guess you could argue the same for torque too though). It is just a way to show where you're doing the most work. Do a search on the Sport Compact Car website. They did a great article on this a while back. Sorry, if I didn't help.

[Sho Nuff]

You have an f20? Don't you mean f22.