ScottR400D Posted August 20, 2020 Author Share Posted August 20, 2020 As standard? As far as I know everything has the Titan LSD, even the 620, though that is in a Ford housing and may be bigger?I stand to be corrected.With 180bhp the Titan probably copes reasonably well. Link to comment Share on other sites More sharing options...
John Vine Posted August 20, 2020 Share Posted August 20, 2020 Sanity check, please, chaps....Do all these tales of woe apply to the Quaife ATB? That's what's in my R400D (with Ford diff), as supplied in 2008.JV Link to comment Share on other sites More sharing options...
Doctor Posted August 20, 2020 Share Posted August 20, 2020 John - no it doesn't. ATB stands for automatic torque bias and is the same as Torsen - torque sensitive. It has gears inside, not plates, so just regular oil changes. It is OK for gentle road use (Audi used to use it in its longitudinal engine vehicles as central differential), but useles on the track. It doesn't lock fully, it just transfers a portion of the torque to the outer wheel (usually the one with more traction). The problem is that if your inner wheel hits the bump and (even momentarily) gets airborne, the car looses the drive as portion of zero is still zero. Link to comment Share on other sites More sharing options...
John Vine Posted August 21, 2020 Share Posted August 21, 2020 Thanks for that, Doctor. I must admit that I haven't noticed the behaviour you describe on either road or track. Perhaps I don't drive hard enough!JV Link to comment Share on other sites More sharing options...
Doctor Posted August 21, 2020 Share Posted August 21, 2020 *thumbup*Perhaps. Link to comment Share on other sites More sharing options...
Alan Reeves Posted August 21, 2020 Share Posted August 21, 2020 Thanks for that Scott, best answer Ive had for a LSDsounds like a cheque book move....John I think yours is safe for a few more years...A Link to comment Share on other sites More sharing options...
Nigel B Posted August 22, 2020 Share Posted August 22, 2020 /sites/default/files/images/users/1318/7667026D-77F6-4DCD-B806-071DDE15F6B7.jpeg I fitted mine this morning & went for a (gentle-ish!) blat this afternoon. I haven't checked to see if it's collected anything unpleasant yet though... Link to comment Share on other sites More sharing options...
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