hey guys ive been doing some mods lately to my car and ive done just about all the easy ones i can do without digging into the internals of the motor but i see that RK sport has an underdrive crank pulley for my car. is it worth the $99. how much hp am i looking to gain by going with it. i was thinking 5hp at the most?i wanted to get it because i like Rk sports stuff its good quality, i currently have their upper and lower motor mounts and they are great


1996 Pontiac Sunfire 2 door 2.2 Automatic. 83,000 miles
Custom cold air intake, RK sport upper and lower motor mounts, Accel 300+ thundersport wires, AC rapid fire plugs, Pacesetter header, Factory cat, Custom 2 1/4" catback with cherrybomb turbo muffler..... more mods to come

The RK Sport pulley is looks identical to the ASP pulley, except it has their name engraved on it. According to ASP's listing for the pulley (2.2L at bottom of frame) it adds 9 HP. This will actually vary depending on what acessories you have and what work you have done. If you have allot of electronics and/or electrical acessories, you may have charging problems. I have the ASP pulley, but only the stock audio and no power windows nor locks and I have no chaging problems. By seat of the pants(this is subjective) it seemed to make a decent gain in the top end power. Pulleys actually don't make power, they restore power lost to the acessory drive.