Originally Posted by
Caddyshack
It is supposed to make it accelerate faster.
We do need to consider that Cossies have wide spaces between ratios so the turbo can drop off boost, the perfect solution would be a close ratio box. By lowering the final drive you are making all the gears lower BUT the ratios are still wide apart.
I will let you know when mine is finally back on the road...albeit with the skyline box.
My track car too will be skyline 4x4 box and 3.9:1 supra rear diff with 3.9:1 escos front diff ratios. Most parts easier to get here in OZ.