Hi, i have a r33 s2 capable of running 10psi+. It has full 3"exhaust,huge fmic,air intake etc.. I used to have it running 10psi but now i put it down to 7psi and the car seems much more sluggish and won't boost as well.
Feels like the car is struggling to use more power because it stops boosting to a point then nothing, is it best to put it up to 10+psi again, because it felt much smoother when it was higher for some reason?
i only reduced it because it was getting lots of wheelspin lol, even with 255/40/17s .