here is how my rear diff looks after 15k miles...

 

DAMN!!!! how did u manage to do that?

 

wow, under what conditions ?

 

The car have approx 400hp (engine, not whp) with torque limiters rised approx. 20%, and was street driven, with approx. 30km on track. I think a few months ago when I started with lunch control at race track something went wrong, because of the very grippy road and the transmission made a bang noise. Then I driven the car until 2 weeks ago when the left rear wheel locked with the rear right wheel.

 

I am thinking to buy a Cusco rear LSD 1.5 way to handle more power

 

There is a drag X around here that has gone through 2 rear ends. It's pretty hard on them. If you're going to be launching a lot, I'd get a mechanical rear.

 

not much power thats sure but definately those launches did not help, but who know you migh have a had a defective unit to begin with and the track killed it quick.

this right here is another reason i like to change the oils sooner than normal because i can see if something is going on wrong, the issue is sometimes they can happen fast and you didnt catch is in the last oil change.

 

the stock rear diff looks weak compared to the front LSD...
The problem was the mechanical part of the rear diff. not the AWC
I had over 100 launches with the car and some drifts, but with the stock clutch! Now I have installed a carbonetic twin-disc clutch.

 

In the oil I could not see any metal particles!! just after I have dissasembled the rear diff there was metal particles in the LSD

 

100 launches and some "drifting" and you wonder why this happened, lol.

 

After 100 launches, I'd say that the diff is durable

 

I have a friend with subaru and he did more than 3 times the launches I did with my evo, and it does not have any problem...

 

Get a mechanical rear diff and give up SAYC then. That's the difference.

 

Or your friend knows how to launch, maybe you are doing something wrong...

 

sweet photo, lol