what effects does an underdrive pulley have on the rest of the engine and car components (a.c., alternator, total power for the car, etc.) and what kind of gain are you looking at (off the line and total horsepower)?

 

probably like 5hp and they arent suppose to affect any of the other stuff. unless you have a massive sound system..then its probably not a good idea.

 

Here check this site. just chose which engine you have and it gives you all the good info.
http://www.vmptuning.com/store/index...ent=4&pg=1

 

I have a 42% reduction UDP and the only real difference you will see is the AC not blowing as cold of air. As far as gains go its noticeable. One of the better things ive done thus far.
The top end speed will increase a lil but it doesnt effect accel too much. I dont use my AC much so it doesnt matter to me.

 

Your accessories will last longer too because they arent working as much as they were.

With the 42% UDP's you might run into a problem with your electrical charging system causing your battery to die over the course of several months. This almost always kills the battery dead, no charging will bring it back. So check with the seller for alt suggestions.

25% UDP's dont yeild as much power but you will have much cooler ac (Not cooler than stock) and you wont have charging problems.


Omnis where did you get your 42% from? How much did it cost?

 

Thereare no ill effects with 24%, now with 42% I've heard both ways.

 

no effects maybe some charging problems which are minimal

 

I got mine from RPM outlet, and i havent had a single problem with it. AC blows just a lil bit warmer.....so little its almost hard to tell.

 

no real effects, still worth the money. unless u have a huge sound system then u will just need some power converters to run it