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Message: <blockquote data-quote="Danny" data-source="post: 130014" data-attributes="member: 132">At last, after long hessitation I went to do a dynotune today at N1 (not my no.1 choice but bought something from them so it costs RM100 only). Previous setting on safcthrottle position - low 20% high 70%low : -20% to -15%high - 0 - 5%After dynotunethrottle position - low 30% high 50% (quite a wierd setting)low : -40 to -35high : -8 to +8Boost at 0.9 bar : 172.3 on wheelBoost at 1.2 bar : 187.5 on wheel* Acc to the tuner, the current fuel pump (Evo 3) could be malfunctioning at high boost as there isn't enough fuel even with +8 settings & advised to get a more powerful fuel pump. At 1.2 bar the air/fuel ratio on boost was at 12.8 while at 0.9 bar it was at 11.8.Question - is the diagnosis of the tuner correct? ie. fuel pump needs upgrade? Or would a fuel regulator help? Not going for great guns here... but would like to hit 200 on wheel. Everything is stock standard Vr4 200 with the exception of metal gasket and 510cc injectors.</blockquote>

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