if any of you have them, what differences have you noticed? any probs with the alternator, power steering, or AC at low RPMs? Thanks guys.

 

yea i'd like to kno to

 

 

anyone?

 

I have heard (not experienced myself) that they AC may not blow as hard at idle.

 

Well, I have one on the car, but my idler pulley broke when I tried to tension up the larger belt so All I have on it are power steering til saturday... I just carry a charger and extension cord! I noticed a difference BUT that's most likely due to the fact that I'm not spinning all the belts. Shifting feels different, not sure how else to put it...

 

I have an UDP, and nothing changed in regards to AC not blowing as hard. As far as power goes, I think I felt a minimal difference, it revs faster, and when the car downshifts after flooring it, it seems to pick-up faster. It may be all in my head knowing that I just added another mod. It would be better if someone had a before & after dyno.

 

yea i didnt notice any difference at all, no lights dimming, steering is fine, ect ect

 

i have had my underdrive pulley on for about a year now. i experienced a little more responsiveness in the throttle. the only problem i have with it is now for some reason my volts seemed to drop at idle but they picked back up immediatly when i hit the gas

 

Mine does that before I got UDP but I was thinking it was the battery, but this driving around without the alternater(sp?) makes me reconsider because it's holding up great so far...

 

no change/ no worries