Well ive been building a drifter for the past few months, i bought it as a completely stock r32, didn't even have a fmic or a boost gauge. Since starting the build ive done the mods below.
Hks Split dump into 3" Kakimoto ( ill be running strait of dumps on track anyway )
Fmic
Welded diff
Pod filter
Tune up ( plugs, oil, timing belt, thermostat, water pump )
52mm Alloy rad ( stock clutch fan and electric thermo fan setup )
Boost and temp gauges
Hdi Boost controller
Safc
vg30 op6 Turbo
My next thoughts were to get a better exhaust and intake manifolds then go for a tune before hitting the track. When reading about the vg30 turbo i assumed that a safc would be enough to play around with to get the car running nicely with the new turbo, But have since been advised i need to spend another grand or two getting nistune installed and a tune with it before getting any benefits out of the new turbo, So im slightly annoyed and confused.
So far i have test ran the car with the new turbo @ 15 psi, Pressure holds @ 15 on stock rb20 actuator from around 3500 to 7000 and doesnt drop off at all, ive not been able to give it a really good test because i dont wannt be speeding around in an unregistered drifter.
But so far it does feel that the stock rb20 turbo @ 15 psi pushed me into my seat more than the vg30 one at 15psi, again ive not got it tuned yet.
Any thoughts / opinions are welcome!