Spotty

If my 97 Gt has 215 hp and a 99 Gt has 260 hp, but the 99 weighs 600 pounds more, can you equate how much that "lowers" the Hp. on the 99? I'm speaking relatively here, I know the Hp. still stays the same.

Jeff

stangman94

you still lose

josh.davis

Lay off the Big Macs. LOL

NaughtyGeek

Hp divided by weight gives you your power to weight ratio. Who ever has the higher power to weight ratio wins all other things being equal ie. driver, gearing, etc....

ponysnake99

600 lbs? Exactly how sure of that are you?MAYBE 200-300lbsandMAYBE 300-400 lbs vs. 03-04 cobras but a 97 gt vs a 99 gt is 600 lbs? The 99 Gt is like 3300-3400 lbs, i know your not a factory sub-3000 lb mustang.

But to your original question, while its far from accurate, i think this is what your looking for:
100 lbs = .10 second in a quarter mile
.10 second in a quater mile = roughly 15 hp
100 lbs = roughly 15 hp
So its equivalent to 90 hp difference in the two, but franky it doesn't work like that

Spotty

Thanks for the replies, the info. is appreciated.

Jeff

cammed99gt

There only a 100 or 200 pounds diff. between the npi and pi cars.The npi runs really high 14's and the pi runs really low 14's

golferjoe11

Don't ask me where I got it, but I read somewhere that for every 7lbs lost of a car it frees up about 1hp...

99gtstang

i weigh 255= that's instant 36 HP lost when i get in <- you must have got them from somewhere special

i can say when i drive my car by myself it will break loose in 2nd and bark 3rd w/ passenger it will bark 2nd only, 3rd wont bark

72MachOne99GT

The numbers are off, and to say "frees up hp" is VERY misleading.

No weight reduction will "make hp"... you might get the same result from losing weight as you would adding hp.

generally, in cars that run 12's-14's or so, 100 pounds, or 10 hp, SHOULD equate to about a tenth, or .1, of a second.

This is all general though, there are many factors to a race that can offset 10 hp, OR 100 pounds or both, for instance, a worse 60'