Hello Guys,

We offer the full line up of Unorthodox Racing.

Underdrive kits:

Our most popular pulleys sets, they increase performance by reducing the engines spinning weight and also because they underdrive all the accessories (a/c, alternator, p/s & w/p). We are very careful not to overdue the amount of underdrive for two main reasons. We do this to maximize the weight loss on the crankshaft where most of the horsepower gains are realized. We are very careful not to overdue the amount of underdrive very little horsepower is gained from extreme underdriving over 20%. We always keep our underdrive percentage under 20% allowing us to maintain factory specified outputs for the accessories (a/c, alternator, power steering & water pump). Our designs allow you to upgrade your stereo to a system of up to 600 watts (RMS) and not have any charging problems. Underdriving gives you 10-15% more power than our stock diameter pulley sets

Stock diameter kits:

Some customers asked for pulley sets without underdrive. They want to keep the stock speed for their alternators, superchargers and water pumps. UR developed this version because the performance benefits of weight reduction outweigh the need for underdrive, especially for audio enthusiasts as some audio competitions require voltage to remain at a specific level. Stock diameter is also important for factory or aftermarket superchargers. Superchargers need the stock diameter to keep the same boost you had with the factory crank pulley. The big weight loss gets you a lot more power to the wheels.

Full Pulley kits




Crank pulleys:



Cam Gears:


Check there website for applications:
Unorthodox Racing

Then shared_pm me for best pricing.

Thanks
Charles