Hydrotrack or Cone Diff which to use ?
Discussion
I have a standard cone type Diff fitted and the LSD seems to have become rather ineffective. There is a coupling between the two wheels but not a lot. With one wheel on the ground the other can fairly easily be turned.
On the road this is fine but when competing it is very easy to spin up the inside wheel and seems to have become easier towards the end of the year. Question is should I simply give the Diff to the appropriate fixer and ask them to increase the LSD coupling (presumably this is just a case of setting a spring rate on the cones). Or should I seek out a Hydrotrack version and fit that.
Some people seem to think the Hydrotrack is better and some can’t get on with it, any body got actual experience of comparing the two and also what is principle of operation. Is it the type where the torque differential drives a pump that increases the coupling forces ?
On the road this is fine but when competing it is very easy to spin up the inside wheel and seems to have become easier towards the end of the year. Question is should I simply give the Diff to the appropriate fixer and ask them to increase the LSD coupling (presumably this is just a case of setting a spring rate on the cones). Or should I seek out a Hydrotrack version and fit that.
Some people seem to think the Hydrotrack is better and some can’t get on with it, any body got actual experience of comparing the two and also what is principle of operation. Is it the type where the torque differential drives a pump that increases the coupling forces ?
My V8S came with a viscous diff which was so apathetic that I was sure it was knackered. When the diff eventually wore out I had it replaced with a similar unit, and the brand new one was just as useless as the old worn. Next time I had it replaced I went for a conventional friction plate diff and it transformed the car - I can get traction out of slow cars without spinning the inside wheel, the car is more predictable and easier to control on the throttle. Viscous diffs are IMO the work of the devil.
Quaife would be the way to go, see here - http://www.pistonheads.com/gassing/topic.asp?h=0&a...
May need someone to place a new group buy
May need someone to place a new group buy
OK so I have spoken to the Gearboxman and to Quafe and it seems a sensible route is to have the Diff that is sitting at the back of my garage rebuilt with new bearings and Quafe innards, the thing I need to decide however is the gear ratio.
The one I have in the car came from a breakers and gives me an overall higher gearing than the original which when I fitted it was good as it allowed 1st gear starts without scrabbling for grip. I am undecided about whether to have the Quafe innards put in the one in the car which seems to be 3.25:1 or the original one which is probably closer to 3.75 :1 what are you lot running ?
The one I have in the car came from a breakers and gives me an overall higher gearing than the original which when I fitted it was good as it allowed 1st gear starts without scrabbling for grip. I am undecided about whether to have the Quafe innards put in the one in the car which seems to be 3.25:1 or the original one which is probably closer to 3.75 :1 what are you lot running ?
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