|
When you plug your numbers into your simulator for the pulley, do they reflect that the UD pulley adds nothing at idle, maybe 5 of its 10 rwhp at 4200 rpm, and the full 10 rwhp not until 8400 rpm? When you do it for the 4.10 diff, does it reflect that the diff multiplies torque 5% better at every rpm? This may not be relevant when you are armed and ready as you drive around in the right gear at the right rpm waiting for your speed contest, but it is relevant in daily driving at mid rpm where you feel the 5% more torque multiplication -- the equivalent of 12 lbs -- more than you feel the 5 rwhp of the underdrive pulley. This reality is why the 4.10 diff blows away the underdrive pulley in your daily driving simulations for 30-50, 50-70 and 60-130 mph runs in any gear other than the absolutely perfect gear and perfect rpm (which we know you are always in, at least on your computer).
|