hey guys i have 94 model r33 it has a hybrid front mount 3 inch turbo back xorst bov pod filter and is running on 10 psi. my problem is that when i give it a hit and the revs are at around 4-4500rpm its makes this spattering noise and seems to loose alot of power as i cant rev it out anymore if anyone can help with what this could be would be much appriciated

I had the same problem, ignition coil pack and wrong heat range of spark plug.