how does this pulley help performance wise if it is the same size as stock??

its lighter...

"Lightened Billet Aluminum Crank Pulley
Designed as the lightest crank pulley
on the market for quicker revs and better
acceleration."

i wouldnt order anything from RSM though. Supposedly they have gone under... i know for a fact they changed the company name to Z-spec. They havent had the best reputation though regardless.

They offered same as stock lightned pulley's and an underdrive veriosn. I have both the alt and crank pulleys, lightned but stock size. The revs build a bit quicker, and accerlartion smoothes out a bit, they're a helper mod and compliment other mods but on their own you won;t feel a huge gain. Nicely machined too. Zspec is the new RSM but is under differnet ownership...I have ordered from Zspec with no problems at all, I dealt with Frank and Zolt and they were helpful.

Well, I agree they make good products. The problem people have is recieving them, and sometimes they have came all @!#$ up.
Forum from general on z-spec rsm.



PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO

so where can we get the pulleys now I am looking into getting one for my 2200. This winter I am doin all my engine work. Any help would be appreciated

I manufacture-n-design pulleys...hence the pulleys in my sig. There should be a couple prototype 2200 pulleys running around here real soon.



PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO

how much are you selling them for. I would love to get one