i need some advice on whats happening to my car. only just bought my r33 maybe just over 2 months now and i've never really fanged it. i did it once and for some reason when i'm boosting it up (almost flooring it), after about 4,500revs there is a surge of power and boosts up more but then it starts to choke/stutter?
today i got my exhaust put in and decided to give it a good fang and the same thing happened. i would boost it up hard and all of a sudden after about 4,500revs there is a kick in the power and it boosts up more but then starts to stutter. as far as i can remember it happened in all gears from 1st to 3rd. i'll test it out tomorow again.
now i just want to know if this sounds like the ordinary stuffed coilpacks problem? or does it sound like something else? fuel pump?