R33 Gts25t

[Mattw_83]

Hi,

With say 1/4 throttle etc (or even less) basically under normal driving conditions ive noticed the car surges up the revs instead of a steady smooth increase. annoying. Seems ok when i lay the boot in however... but its not that often i do and its harder to really tell on the street.

Any ideas what could really be causing this??

Ive been told wastegate issue? (ie spend more cash please first). Due to limited knowledge on the subject (basically f**k all), wouldnt this only be whilst in positive boost?? Didnt do it before i had z32 AFM and fuel pump installed and retuned....

Last attempt to sort this car out. About to cut my losses, f**k it off even though i still really like it and its in great condition, and buy a new f6. Or maybe a 135i. Something that runs 13's out of the box and not have it played with....

Skyline ran flawlessly when it was stock.

Stock Turbo 13psi makes about 210rwkw

FMIC

3inch

z32 Ecu

z32 AFM

EBC

SPLITFIRE COILS

NEW SPARK PLUGS

Cheers,

Matt

[Crans]

Give the AFM a clean, Also look at the tune, there has been a bit of discussion on the Nistune forums regarding drive quality when using the Z32 ECU on the RB25. Pretty sure STATUS had a map he used as a base for tuning these cars that sorted out these issues