Thread: hp lost from wheel wieght

who lost hp from changiing ultra lite wheels to normal stock 200sx wheels or some other will i did on my car and i think i lost about 8hp why ithink that its becuase is the only thing i have done to the car

Unsprung weight.. its important.

yes unsprung weight is big thats usually why dynoing on a dyno pack will show more hp than a chasis dyno

I made a post regarding this a while back. Concluded lightweight wheels were as much a performance adder as JWT cams. You just don't see it in your WHP numbers, but you will at the track.

-G

O dont go to the track but yes to the dyno the same one and the car lost 8 hp

mmmm... damn mercado but why did you change wheels or just borrowed some to go to the dyno?

So if i understand correctly means that in my case i haven't done any performance change to my engine or ECU and i pulled 177WHP on stock B13 SE-R Rims. If i buy some lightweight 15" racing rims will add some more power at the dyno?

depending the weight of the stock SE-R rims, the rims are 13 or 14 ?

Surly you meant to say "rotating assembly (drivetrain) mass" is important. =]

14" not too heavy i think with 185/60R14 tires

Joel put them next to an rota or. Konig or any other then you wll see