i am not saying i am gonna go to the track. i was just asking, "what if". i gave up the idea with the limited slip diff, coz my car has 105k miles, and i think its pointles to invest the money. besides, why open the tranny and change just the diff. if i do that, i have to change the shift forks and what not..so i decided it be much easier to get an entire tranny...
and no one ever answered my question. which breaks the diff?? the wheel hop or the launch @ 4000rpm (assuming there's no wheel hop). i am just curious.

thanks for the advices all. you helped a lot