How Much Of A Difference To Pullys Make

[BombSquad]

I've never had any experience with underdrive pullys but i figured since my belts are sqeaking and it sounds like my bearings in my idler are shot, i might as well upgrade. I just wanted to know if you guys had any advice or input.

[tomctx]

Originally posted by BombSquad@Apr 20 2005, 07:55 PM
I've never had any experience with underdrive pullys but i figured since my belts are sqeaking and it sounds like my bearings in my idler are shot, i might as well upgrade. I just wanted to know if you guys had any advice or input.

[snapback]335708[/snapback]

As I understand it, about 3 to 5 hp. But it's across the rpm range, not just peak.
www.uucmotorwerks.com has a dyno chart and info on pulleys, as do others, I'm sure.

[B_w.]

i just picked up some eurosport pullies. i will give my impression when i get them installed after finals are finished.

[chr328is]

yeah, I know more than a couple of you have some sweet fixed up bimmers. Please answer us this. I am going to get pulleys, but I still want to know what I am going to (ornot going to feel). I heard from like 1-3 horses. Also, how easy is it to install?????????????????

[B_w.]

here is a link to a dyno of a 328 with a eurosport camkit and eurosport pullies
pullies dyno
and then camkit without pullies

[Rooz]

I have been supposed to receive mine from UUC for over a month now, they have been backorered, but as soon as they get here and I put them on, I'll let ya know how they go...