What all needs to be changed besides the crank and supercharger pulley? I'm assuming i'll need a new tensioner arm pulley but will i need a new tensioner or just swap out the pulley?

Also i have a 12rib crank pulley from a tpi car can i just use the spacer from my 8rib setup? BTW this is for a p600b model

thanks
Travis

 

From ATI, you get:

new blower pulley
new tensioner pulley
new crank pulley
keyway for blower pulley
12-rib belt

Also, I've been waiting on mine forever. Hell, I ordered it several months ago.

 

Did you call them? I bought a used system and was missing a few peices. I placed the order on Monday and the parts arrived by the weekend? I was impressed how quickly they sent the stuff out.

 

Yep, that sounds about right. You will have to grind the cooling fans a little bit to make it fit. Other than that, it is a piece of cake.

 

Is there somewhere else besides ATI that i can order?

Thanks for the replies

travis

 

Also is the upgrade worth it? Right now with a homemade 4"intake,huge K&N and the 12psi pulleys i'm only seeing around 8 maybe 9 psi.

Has anyone that upgraded from 8rib to 12rib and noticed a pickup in boost?

thanks
Travis

 

I called Lonnie Pavtis and ordered it from Him. He got them for me in like 3 days and gave me an awesome price too. Mabee you should contact him. Here is his info:

http://www.westol.com/lpavtis/

Hope that helps,
Claude

 

I bought the pullies through Ramchargers. It took a month to get them originally, only to find they were the wrong ones(maybe for a P1SC or D1. I sent them back several weeks ago and nothing.

I probably should've just called Lonnie and been done with it.

 

Need to knwo more about your setup...Are you striked?, ported heads?. My friend had a 12 rib setup running a 12lb pulley and usually saw 12-14lbs on stock heads LT1.

 

I have used 7, 9, and 12 pound pulleys, with the 12 pound/12 rib putting out the most power by far. It is a big difference from the 8 ribber.

 

My setup is a 355, stock heads and CC 218/230 cam.

Thanks Claude i'll give Lonnie a call and see what he can do.

-Travis

 

i ordered mine through a local shop(for a friends car) and they were here in about a week. install was straight forward, had to do a little fan trimming.