There are a few to choose from.

Few Questions

What does each one do?

Pros and Cons?

I heard that with piston engines, if u use a pulley, it slowly damages the internals of the engine. I have no further details.

Do you sacrafice something to gain HP?

What are the HP gains?

 

I'm using:



from Pettit. It's the only one (I think) that's not made for air pump removal.

I've never heard any horror stories of pulley kits on the FD aside from the people that do the unorthodox pulley install incorrectly.

As far as HP gain, you won't gain a whole heck of a lot, but every little bit helps.

 

Im using the Pettit underdrive lightened power pulley, its suppsosed to give you a little more power than there normal kit. Main reason I bought it is because the Unorthodox kit requires you to take out the ecentric shaft bolt ( big pain in the *** ) I also have the Greddy pulley kit too, I wanted the airpump outa my engine bay. It took about 30 minutes to install both kits. And it looks really good too.

 

Did u guys feel HP increases?

 

Unfortunately I did my SMIC at the same time so it's hard to tell if the pulleys did anything on their own.