recently took my car to the tracks and noticed some issues which were not there when it was tuned about a year ago (not putting the blame on anyone here)
at idle, when you tap the throttle, it feels like the revs drop momentarily. Even when you rev the car in neutral, it feels like there is hesitation below the revs pick up. any idea what this is?
also at wide open throttle (WOT) the top of 3 gear is splattering. is this lack of spark? i have a big fuel system in the car and on the dyno it was fine, but im sure real life situations are different to dyno.
and last thing is at wakefield, as i come in fast to a corner and brake (turn 2, fish hook and last corner) the car doesn't rev or do anything! it drops to neautral for about 2-4seconds then picks back up again. I've tried to rev match and downshift but nothing worked! Car drives on the street fine but this is concerning me.
Is it a Tune? Spark? Fuel?