Tuning options for the other AWD car's..

[THE ASH]

I will need to do something about tuning my VR4 shortly due to already hitting fuel cut & wanting a bigger turbo. I Live in Townsville, north Queensland - AWD dyno's aren't exactly available. (try Brisbane, 1200km away!) Has anyone got their AWD car chipped/tuned without a dyno and what did you do? I was planning on either a remapped stock ECU (VR4's are about the last Mitsu chipable) or an interceptor such as a unichip or S-afc due to funds. (I can't afford a decent standalone or the turbo to need it) In the states, most VR4/DSM owners use S-AFC's and tune themselves so I have/can get a lot of info on this. Any thoughts?

[Forg]

Can you disconnect or disable the rear wheels on those, somehow? Maybe pull the entire tailshaft?

[THE ASH]

not without rooting the viscous centre diff. If I had a locker in there it would be a piece of piss. The Jap VR4's actually have the option to run FWD without pulling everything apart but alas, I dont have that option.