Hey guys have a quick question,

What is the measurment of a stock pulley on the 03-04 cobra eaton supercharger? and what part are you measuring from?
THanks

 

3.65" is the stock pulley size.

It is measured by the OD of the pulley.

 

ok, so the pulley i have is about 2.8 out side diameter... so i take it that its a smaller puelly...
There are no referance #'s on the pulley, and it looks like a plane pulley. I was thinking maybe its a UPR styel? any thoughts

 

I am pretty sure the 2.8 is made by Steeda. Indeed that is a smaller pulley.

 

ok cool, I got the engine for my fox (in pictue) and the guy that was parting it out had no idea about what was going on with it

 

...Post a pic!

 

well the brands is not as important as the size is just so you have an idea on how much boost u have.

 

thats why im gona get me a boost guage hahah

it looks like it is in the 2.8" range... no idea if it has a lower pulley or not

 

if the car has a lower it will not have the steel cage on the front of the crank pulley.