So I had an upgrade done with new turbo's etc by a Sydney builder/tuner.
I'm running into several problems running around Canberra.
1. The car runs rich, so much that it spits out carbon deposits and lots of them.
2. The power FC says it uses up to 100% injector, the sales rep at the tuning place recently told me not to worry about the figures they were not to be trusted (this from the same sales rep that told me that more PSI doesn't kill engines).
3. The car will occasionally and only under light throttle, give a kick like the fuel has been suddenly cut off then reapplied.
4. The fuel usage is very high, 300-330km per 50litres no matter what level of boost I have (11-18 PSI), before the upgrade I was getting 400+km on 15psi.
R33GTR 265kw at 18psi
2860-5 turbo's
Power FC
Boost controller
Cam Gears
Panel filter
Spitfire coils
Still running the same AFM, injectors, fuel pump
I realise that there are differences in climate from Canberra to Sydney, but the tuners claim to be world class. I feel I've been fobbed off by the sales rep many times and I'd like some ideas to ask the tuner etc when I next go down to Sydney. Why the hell should the computer running my car not know the correct injector utilisation. Opinions and ideas please.