jeremy1

I did a search already for a thread that talked about a pulley kit for 100 bux that increased hp substantially.
The link went to a website with dyno graphs to back it up and everything. Just can't find it anymore. Thanx again!
-Jeremy

JerryLH3

iTrader: (11)

http://www.mazdaracing.com/pulley.htm

There you go.

mazdaspeed7

14 hp from pulleys....uh huh. MY RB pulleys are lighter(doesnt have the a/c or p/s pulleys), and have exactly the same amount of underdrive. I didnt even notice a difference. Except for the alternator failures because it cent keep up with the demands of my car. I dont have a big stereo or anything either, just a head unit and 4 speakers. With my car idling, and headlights and e fan on, my battery will go dead within 20 min.

I think a main UD pulley is a good idea, but havign the alternator underdriven 35%(identical to my RB set) is a bad idea for a street car. Im putting on my Atkins serpentine set today, and Im very happy that is does not udnerdrive the alternator.

jeremy1

thanks so much for the response that is exactly what i was lookin for
and thank you m7 too
I was not planning on underdriving my alternator though