Hey Roy,
Love the build up, very inspiring, most brisbane and GC based RB20s get pulled out for 25s or 30s, ive always wanted to keep mine, nothing like the work gone int your tho.
Some thougths on your brakes locking up, id say the front needs corner weighting, did it lock the right front on other corners, when it was inside wheel? It maybe that your ride heights are causing corner weights to be far to light on the passenger side causing the lock ups.
How do you find the power, even after all of your experiments, it looks wuite drivable, power band of 4500 to 8000 i doubt you would drop off boost, so shoud be ok. Does it come on too strong for corner exit traction on faster corners in 3rd and 4th or only in 2nd gear lower speed corners?
Keep up the good work, love it. Just wish I had the money to do what I dream of doing to mine.
I want 250rwkw so a healthy 400 flwhp and then suspension and handling more than more power. My goal is for a set of MCA coilovers, I know his son so support should be good, and go from there.