I bough a 165A alternator for my itr. I had a aem pulley on my old one and was wondering what the underdrive pulley will do to this one. Will it lower output or just lower output at different RPM's? Is it even worth putting the pulley on?

 

Is it just the Alternator pulley? If so, you won't see any real gains IMO.

 

Im not looking for hp gains. I have my ps underdriven too. Just wondering about output. I dont know...stupid question now that I think about it. By the way Dave, Motors assembled just waiting to get a clutch and it'll be ready to be put back in.

 

Good deal.

My suggestion though, if you want to underdrive things... get the CTR N1 crank pully as well.