2006 KB Stang GT

[Rafa]

What size pulley are you running? What size crank pulley? Motor specs? Forgive me if these have been answered in other threads.

Scott

Stock motor. I put back stock crank. KB pulley is stock 4''.

[Lone Star Performance]

The problem is you have the 2.6L at too low of an RPM to be in its efficiency range. 6.5 (crank pulley size) / 4 (blower pulley size) X 6000 (engine rpm) is only 9750 rpm on the blower. You just need a smaller puller for it to do its job more effectively. I'm spinning my 2.1L a little over 14000 rpm

[Rick Modena]

That's what I told him, pulley down to a needle, lol!