Hmmmm noticed substantial mpg increase with nst pulley...

[lilredrocket]

Dallas read this:

http://www.yarisworld.com/forums/showthread.php?t=4737

Then you may want to re-think your statement about the effects to the a/c, alt, w/p, and the damping. I know you picked the underdrive pully but did you do the research before you bought it or do it because everyone else was doing it? If you don't want to read the thread then I'll help you out. NST did all the R&D to have minimal effect on all acc. and have thousands of reviews on different sites with great reviews and no problems. So when if at all do these so called shortcommings happen or feel the effect of them?

[dallas]

I don't research from manufacturers claims, they want to sell you a product. There are a tons of Underdrive pulley mfg around with Unorhodox being the big one. Pulleys are not new or rocket science, there are downsides to this mod, just very hard to qualify both ways. If you go do some research specifically from S.A.E test papers on this subject you will be enlightended. I'm just saying I did the mod for the extra H.p at the sacrifice of other things.

Originally Posted by lilredrocket

Dallas read this:

http://www.yarisworld.com/forums/showthread.php?t=4737

Then you may want to re-think your statement about the effects to the a/c, alt, w/p, and the damping. I know you picked the underdrive pully but did you do the research before you bought it or do it because everyone else was doing it? If you don't want to read the thread then I'll help you out. NST did all the R&D to have minimal effect on all acc. and have thousands of reviews on different sites with great reviews and no problems. So when if at all do these so called shortcommings happen or feel the effect of them?