[Dee1979]

Having a problem with my R33 gts-t.
At 4500 - 5000 rpm i'm having a loss of power and it's the car is jumpimg if like i would red line it.
I cant seem to find the problem can can any one help????

 

[anthonymcgrath]

is it a misfire thing? I only ask as at 5000rpm upward on full grunt the car made a 'brrrrr' sound and felt like it had hit a wall. Turned out to be faulty coilpacks. I got some splitfires and its so smooth now.
take coilpacks out and check the condition. check sparkplugs too whilst there.

 

[Nismosis]

could it be overboosting and the fuel cut is coming in?:bawling: