Well I drove a little today. The good news is that it will go into boost to about 135-145 kpa. Roughly about 3-4 psi. The bad news is that it still will fall on face. The bosot goes higher then it did before you changed the Tun, but it still does it? My timing is staying between 10 to 15 degrees. Not sure why, as I have a commanded 18 degree setting on the high octane table??? I did notice two things. It is capping out at 4000 rpm across the board. That is the highest it revs. Also, if my wideband is correct, I am seeing about 9.0:1 AFR above 105 kpa, 105 kpa and below that, it is about 11.5:1. That AFR is way to rich and from 115 kpa to 145 kpa, AFR drops from 9.3 to 9.0. I am thinking it is just falling on its face from being too rich. Would this cause it to suddenly stop revving above 4000 rpm though? This is pretty wierd.
Unfortunatly I only get about 10 minutes per day to tune. Every time I fire up the laptop, I have to make it count. My next step will be drastically leaning it out. Have any ideas about the 4000 rpm cap? It will accelerate like a bat out of hell untill it falls on its face. Feels like hitting the rev limiter. Someday I will figure this out! :?