Just try a center torsen one. You'll be impressed.

Ciao,
Daniele

ok guys your right 50mph is to much for bashing with this now realized(i should have realized it sooner) i will just go with the sliperential for racing and if i do want more speed for speed runs i can put i higher pinion on the motor(i will email mike and see what size slipperential pinion goes up to) this sounds the most reasonable because it gives me the performance of the slipperential and i realized i do not need that speed after all -but fo SOME reason i do think i might want to do like 46mph i will just use the 20t pinion and i should get there. THis sounds like a plan what do you guys think. thanks for helping me realize -it seemed last night all i was thinking about was speed.

You could see if mike would make you a big pinion for it. If you go 3.31 diffs.
2.2 slipperntial and 24 40 pinion. It should run in the 40s. If you go with the
stock diffs. You will run in the 40s on 20 38 pinion spur. Just a few calculations
to go by.

Btw. I was going for mid 40s.

I ran a dual hvmaxx set up on a truck. I think the 7xl was more powerful than that. Just to let you know.