Underdrive Pulley's

[DZEE'S LX]

March makes good pulleys and has a pretty good selection. There are several other brands that I'm sure are fine also. They all pretty much do the same thing. You usually get to choose from steel or aluminum. I would stay away from off-brands or cheap ones though. A bad pulley will waste your accessories or could possibly break causing muxh damage.

As mentioned there are gernerally 3 pulleys in a set but you can use any combination of them - check your belt length though. The crank pulley is smaller and the w/p & alt are bigger. They will sometimes offer "race" sets or "street" sets depending on how bad you want your accessories to work. Slower accessory speed means you don't lose as much h.p.

Be careful of how your car reacts. Like the previous post your charging will most likely suffer without a 130 amp alt. With my March pulleys I don't charge at idle but it does when over about 900 rpm. At night with lights, stereo, heater fan/wipers etc it doesn't charge near as much.
Be VERY careful about cooling. I saw a big difference in the summer. Overheated a little at one of the August autocross events.

Install is fairly straight forward. You will need a allen head socket for the crank pulley because the smaller dia pulley doesn't offer as much clearance for the stock bolts. Might be able to use stock bolts with other brands.

You will free up some h.p. but you may have to beef up either of these systems depending on how your car is set up and how you use it.

Dan