taken from IJ thread over in SM....
How it ships
Only two grooves. One for Atl/Water pump. And the power steering groove.
A/C or NO A/C?? Your choice.
SFI approval
no more messing with welding crank trigger and praying they DO NOT fly off.
specs
Fully damped and tuneable for specific rpm ranges (from 6k to 9k+ rpm)
3 lbs lighter as seen in the crank trigger photo. 4 lbs lighter than oem without A/C pulley.
SFI approved (meaning you are legal for drag racing)
Good to about 600+ hp.
questions?
How it ships
Only two grooves. One for Atl/Water pump. And the power steering groove.
A/C or NO A/C?? Your choice.
SFI approval
no more messing with welding crank trigger and praying they DO NOT fly off.
specs
Fully damped and tuneable for specific rpm ranges (from 6k to 9k+ rpm)
3 lbs lighter as seen in the crank trigger photo. 4 lbs lighter than oem without A/C pulley.
SFI approved (meaning you are legal for drag racing)
Good to about 600+ hp.
questions?