just curious....

previously i posted a thread that my ECU is causing me running pig rich and have studdering at high RPM...

the amazing thing is that.... when i was down the track without any after market AF adjustment..... the studdering disappeared.... the car pulled strong from 2K to 7.5 K..... boosting at 0.9 BAR solid. no jerking....

just wonder why....





any quite some while ago i posted i have a sudden boost drop to 0.5 BAR in my first few track event... after about 3 laps....

what i did was changed to twin oil coolers from the R1 specs... and running water wetter and 25 % coolant.... my car runs cool 95 degrees celcius solid no matter how hard i whack the babe....