Thread: zzp 3.6 pulley supporting mods

Originally Posted by FordMan77

Take a read through this thread. Should give you all the info you need to safely drop a pulley size.

http://www.grandprixforums.net/safel...car-17482.html

This.

A custom tune with a wideband and a u-bend delete would probably make for a faster car anyways...and relatively cheap too...probably around mid to low 14's on a cold day with enough timing and no knock.