Hi guys, I need some help.

Can anyone tell me the diameter of the crank pulley?
I can't get good clearance to measure myself and the darn original pulley that I pulled out during supercharger install cannot be located.

Thank you very much.

 

I have my original pulley at home, I'll measure it if no one replies.

 

Yeah Wes, please help if you can. Preferably asap

Gotta give this info to my fabricator who is going to work on the new blower pulley.

Thanks bud!

 

I won't be able to measure it until tonight.

As you know, I'm very interested in a pulley too, please keep me updated.

 

ME TOO!!! BTW, are you guys installing an aftercooler?

 

add me too, I will have a front mount soon so hopefully I wont need to change to the aftercooler !!

 

Although I'm not ready yet to up the boost, I'd be willing to buy a pulley now if I thought it was going to be cheaper to do so...ie group buy.

 

Come on guys,

I am still waiting. Wes, you are my only hope......

 

Is this at all related to the new aftercooled Vortec V2 unit coming on the market real soon? I here it's pretty strong .

Utah

 

Randy- I don't know if this will help you out .

Supercharger Internal Step Up Ratio = 3.54

Max Impeller Speed = 55,000 rpm ~12lbs of boost


Impeller speed = Max engine rpm x (Crank Pulley)/(Supercharger Pulley)x 3.54.



** If anybody sees something in error please speak up.