Just my 2 cents on LSDs in response to "as a motor sport chap I thought you of all people would of had an lsd"
Well put simply I don't want one. I can only see a negative effect both on road and track.. they're only a real advantage on mixed surfaces. This all being based on part availability and cost over the results
Why no use on road/track?
Well an open diff only becomes useless once 1 tyre has broken traction and put simply if you've broken traction with either wheel you're doing something wrong.
If I apply throttle around a corner and I break traction with either wheel (my most recent case being inside front wheel lift) then you certainly don't want to be pushing on or you'll understeer off the line or worse off the circuit. In my case my cornering speed and grip exceeded the lateral balance of my car itself, judgement made by knowing CoG over Roll centre calculation to give maximum lateral G etc etc (wider track or lower CoG required, hence poly windows)
An open diff will give a momentary stop to the drive on the car, regaining traction and therefore drive ability in a fraction of a second
An LSD on the other hand will push on regardless and act almost as a solid axle and push out as I say off the circuit
Being as I'm a handling fan I try to focus on corners and there's no way I can maximise my cornering ability any more than I already have with an lsd especially considering their current cost. So that's why I dont use one, there's no need for one on road and circuit and quite honestly I'm faster without
Its use is multiple surfaced areas, ie rally's where you may have less grippy gravel under 1 wheel and tarmac under the other, as there's more grip available to the tarmac wheel and open diff would be no good if traction was to break, an lsd makes the best of the situation and cracks on, but you'll still have the cornering problem if they're npt setup. People like to blame suspension for bad handling and in 90% of the cases I see personally its far from ideal, not they the knew it, but in 99% of cases its the drivers ability to handle the car and drive it at its limit. Hard throttle, understeer, blame suspension. Nope, blame the lsd and the driving style. Your still going to understeer if the suspension is incorrect with an open diff but a whole other can of worms
If I was to choose any type of LSD it would be a 1 way type. Why?
Open diffs are superior for corners, locked diffs are good for straights.
If I was to brake into a corner, maintain speed around corner, and power out at the appropriate time I would only want to be applying hard throttle where the wheel was straight
