Thread: Pulley drop time?

Originally Posted by Matt Palm

so you dont run it lean and chip a piston or it runs too rich and fuel wash it

That's so completely wrong.

The stock tune isn't lean by any stretch of the imagination.

The canned tunes tend to run around the same or richer.

Changing the pulley doesn't affect the required MAF calibration. Changing your intake does. And that's about the only thing the PCM cares about when you go WOT.

Just scan, and adjust pulley accordingly.

Thanks for the info!