alright im 16 and for christmas my dad says heres the budget make it fast and when ur done u get to be the first to drive it. the first thing that came to mind was a pulley swap.how can i tell what size pulley i have on the the stock eaton on my 04 cobra?? i think i have a 3.10".....i measured the ring at the front of the supercharger. but i wanted to make sure. [/align]

 

th way to know would be to mesure the diameter of the pulley ring. if it was 3.1 that what you have.

 

yea thats what i though just wanted to make sure...thanks alot

 

Is this your dads cobra? or is it yours cause if its yours, i want to know what you do.

 

no its my dads, wish it was mine!! just cant wait to drive it!!