The economy on my 80 is killing me offroad. It's a 96 4.5 auto. I have upgraded the valvebody on the auto (less slippage) and upgraded the ecu. Yeah iut goes heaps better, but still crappy economy. I runs mostly 285 x 75 x 16's. Currently 4.1 ratios. I do heaps of long trips as well and currently at 100kph (by the gps) doing about 2200rpm. I figure i'll end up doing about 2500rpm at 100kph. However am i going to pick up any economy. Has anyone done and give some feedback. I t would be most appreciated. I searched but couldn't find anything on improved economy. I love the auto but if changing the ratios won't help, then I'll have to swao in a manual.
Cheers GReg
Cheers GReg