[Fot] LSD diffs, what specs to choose?

[Alexandre Camoletti]

Dear FOTers,

Have to install a LSD in my TR3. As the diff needs to be rebuilt, I take the
opportunity to install a LSD.

It will be a (very) fast road car, fully prepped for long distance road
rallies in various conditions  (Winter, Summer, dry, wet, snow).

I would like the car to remain predictable and driveable in all sorts of
real road situations, so it has to be some compromise I suppose, but I do
not know the influence of the set up parameters.

I know little about LSDs, hence a couple of questions:

1)      Quaife (gear driven) or Salisbury (disc type)? I know the Quaife
does not work with one wheel lifted, but has not the problems associated
with disc type (oil quantity and heat)

2)      If Salisbury type: what ramp angles? I heard of 45/45, 45/60, 30/60

3)      Re Salisbury again: the locking should be lightweight or fully
interlocking?

4)      Salisbury still: looks like TRAN-X in the UK is the one
manufacturing them or did any one of you have good experience with another
Salisbury type LSD manufacturer?

5)      Still Salisbury; should the RACETORATIONS finned cover be fitted to
increase cooling and oil capacity, or is not critical in a fast road
application?

6)      There is also the PHANTOM GRIP possibility , what is it and is it
worthwhile?

Thank you in advance for your feedback!

With kind regards

Alex Camoletti