underdrive pullies ???

[daveeclipse99]

underdrive pullies ?? worth it or waste of money ??

thanks

 

[SeMi380]

If you plan on daily driving the car don't bother. The increase in hp isn't that great and if it doesn't spin your alternator fast enough your car will just keep dying while you're driving. Underdrive pulleys were mainly designed for race cars so they wouldn't burn out their accessory belts. If you only drive the car at the track go for it.

 

[95blackGsTurbo]

Waste of money. You need a balancer for your crankshaft. Unless you plan on getting your rotating assembly balanced with the addition of the pulley.
http://www.dsmtuners.com/forums/newbie-forum/169294-underdrive-pulleys-merged-1-6-07-a.html

 

[BkzProblem]

Don't do it... our motors need the balancer on the crankshaft for a reason... it is possible to cause bearing damage due to the increase vibration... it will also hurt your electrical system since it will not be able to put out as much voltage due to the pullies being "under-driven"