Yes bro, well i'm not saying that i'm losing fuel it is something thta it's cutting off the accelaration. then it turns back after a few secs. I just use a BKR7E plugs.
That's the speed limiter. My GTI-R eccu did it also. I got a speed limit defender from HKS and it solved the problem. You can contact John @JKTUNING and he can chip your ECU for around the same price with a basic tune.
92' SER -Pulsar/VVL combo on E85, 11.31 ET @134mph, Full weight, street car, A/C and sunroof, PTE 6262 at 19 psi (low boost) Now running Nismotronic SA
73' Datsun 510 with SR20DET (project)
73' Datsun Drag Car in the works
hello kevwal thanks for your response, i already have b13 basic ecu from JKTuning but currently i having problem to make it work just yet. so this could be speed limiter issue.