Originally Posted by
Marc sierra
But yours is a 4x4 with 66% of the power going to the rear. So that's comparable with a 310 bhp rwd, which is normally not a problem for the standard 7.5" diff either.
My subconscious worked out what I was thinking. It is actually not the same.
In the same scenario the 4wd car at 469 bhp has the other 159 bhp and a chunk of torque still pulling at the front for the same weight, therefore the power to weight and torque to weight of the 310 bhp at the back is significantly different. The 310 rear on the rwd car has more weight to push against (more inertia) so in theory the 310 on the 4wd car has much less work to do to propel the car so with limited grip / excess power the 2wd car is still more likely to spin initially to overcome the inertia of the more work (weight to push).
Playing devils advocate to my argument the 4wd car has less weight in terms of power to weight to push the rear tyres in to the Tarmac so could be more grip limited than the 2wd car.
Also weight transfer on the 2wd would be greater giving more grip. My head hurts now