Discussion on the best rear differential for an all out road race car? Torsion, clutch, locker?

[darkostoj]

We converted a 1977 Rolls Royce into an all out race car and we are having a problem getting traction in the corner exit and trying to figure out what to do in terms of the diff.

It has a 9" axle with a fully adjustable 3 link and we can't get the inside rear wheel to stop spinning on corner exit no matter what we do. We have tried jacking up the anti squat until we get too much brake dive in corners, removed rear sway bar, and softer springs. I think the only thing left for us to try is swapping out the diff.

It currently has a wavetrac torsen type diff.

So what are the advantages and disadvantages of

1. Torsen Diff
2. Clutch Diff
3. Locking Diff (like detroit locker)

Are there any other styles I'm missing?

Would be nice to get a discussion going on the pro's/con's of each