So I'm thinking of doing this mod but slightly concerned that no ECU tuning is required.
I would think the ratios would need to be adjust slightly but I'm no expert.

So I'm wondering those who have been running this pulley for a bit, you have not encountered any issues at all without tuning? No detonation? etc etc

Thanks for the input.

 

I was curious about this upgrade as well. Can this really stand alone or is belt slipping a concern?

What about an 8 rib pulley?

 

No issues here w/ the 3# pulley swap......been like 6 months w/ it......soon to port/polish blower, and get it tuned....

 

Riski, did you notice any power increase with the #3 pulley (?) I tread the Eaton112 is at max efficiency in stock trim?

 

big gain through the whole power band.....it is not maxed out atleast not yet.....will dyno itagain to see hp gain w/ the pulley and exhaust, then will do the port/polish and tne dyno....