I understand that the stock pulley that comes with the AP2 CTSC kit is the same sized pulley that people who have AP1s buy to increase the boost levels with their cars. Is that correct?

So where is the best place to get this pulley (besides Comptech, which is no longer in business), and what size is it exactly? I'm going to buy an AP1 kit but use it for my AP2 (MY2004), and it's my understanding that as long as I get the right sized pulley, I'm good to go.

Basically I need the best place to buy a AP1 7lbs pulley or AP2 stock CTSC pulley.

Thanks in advance!

 

I believe so.

Pully's can be found here:
http://automotivespeed.com/product_i...roducts_id=251

or on eBay.

 

AP2 pulley is a 4.25 inch pulley.
I own this pulley on my AP1 and it was bought through Comptech.
I made 8 lbs of boost on the dyno (Non aftercooled)
304 HP. It is definitely a worthy upgrade!
Buy your belt through summitracing. Its super cheap!
Pulleys can be bought through many like ASP or automotive speed which have a belt/pulley combo.

 

So the 4.25" AP2 pulley is the same as the AP1 7lb pulley? For some reason I thought the AP1 7lb pulley was 4"?

 

With so many SC'd cars out there it seems like we would have definite answers on questions like this, but no one seems to agree. When looking for a 7 pound pulley for my AP1 I searched forever to find the size of an AP2, which is suposedly 7psi (what I wanted). So here's what I've got...

Ap1 = 4.3" = 5psi
Ap2 on Ap1 = 7psi
Ap2 = 4.25"
4" on AP1 = 7psi

So.... somebody is lying.

If it was me, I'd go with a 4" pulley. You know for certain that it'll put you between 5 and 7 psi, both of which you can run on the stock ecu. Just don't forget to check the AFR before you go beating on it.