At first, I thought I was having a misfire issue, but after some data logging I am running crazy rich (10.5 to below 9.6) in the 3000rpm to 4500rpm range which is causing a major stutter that won't let me get past 4500rpm. I was using my GT30R custom map w/ 680cc. Is this something you see w/ bigger GT35R's? Do I have other problems or is it OK to take out a bunch -10 to -14 out of the map in those regions? BTW, the turbo is a RX6 TCW77L. Does this seem normal to you?

 

It's normal to take away a bunch of fuel during spool-up.. esp with a laggy turbo. Just monitor things carefully and make small changes at a time.

Shiv

 

What do you consider small increments? I just can't believe that it would be this much different that it would cause a stutter when going from the GT3076.

 

1 fuel point at a time is nice and small.

 

Sounds good. BTW, SMART rocks.