hi all
i get this strange "choking/fluttering" feeling between approx 4500 and 6000rpm with my rb25det.
under and over this range the car feels strong as normal.
at 6000, it comes good again with a noticable increase in power.
First i thought it might just be the factory boost solenoid doing its thing because of the change at 6000 but now thats been disconnected - no change.
happens at standard and slightly raised (9psi) boost. same deal.
only mods are 3" cat back exhaust.
standard ecu/afm etc
i recently changed plugs to NGK PFR6A-11 ones re-gapped to 0.70mm
could this be my problem, too small a gap?
help!