ATB or Titan LSD for BMW diff? -last chance to decide.

[rotorwings]

I have a 2012 R300 Duratec with an open BMW diff and want to order an LSD or ATB replacement this week.

I have found that Birds in the UK can supply a Quaife ATB to fit the BMW diff used in the current cars. Has anyone out there tried one of these with the BMW diff?

The other option is to go with the standard Titan diff. Either diff would end up costing me around £1500 fitted.

My car is probably never going to see a track, so I am looking for something safe, predictable and lower maintenance. 10ths of a second around a course will never concern me. My research suggest that the ATB would be the better bet.

I'd be interested in all opinions and experiences.

[downsman]

As you haven't had any replies, I will say that I researched this on Blatchat and the consensus seemed to be to go for a plate type LSD as long as it has been set up for a Seven. I went for a Titan from Road and Race in a Ford diff, and I have been very pleased with it, donuts at Dunsfold were easy and I have felt it helping out several times on the road too.

ATB diffs aren't the same thing at all according to what I've been told.

[DCL]

I've run both the Quaife ATB and Titan and for road use I doubt you'd notice the difference. The ATB weakness is that, if the torque reduces suddenly (eg wheels leave the ground), it can revert to an open type behavior. The Tiatn works much better on track where you are using kerbs.

For a road car, the ATB is a 'fit and forget' solution and would be my choice. The Titan uses friction material and will require rebuilds to maintain it's performance in the longer term.

[rotorwings]

Thanks DCL, this confirms by research so far and it's great to hear from someone who has run both. It looks like the ATB fits my needs.

Spinning off a bit of power might not be such a bad thing if wheels are getting airborne on the road.

Downsman - thanks for your input and research, much appreciated. If I were spending any time on a track I think I would give the Titan more careful consideration.

Edited by rotorwings on Friday 27th June 10:14

[thequietone]

I had an ATB in my R300 k-series, great for the road especially in the wet. Wanted plates for trackdays but at the time most of my mileage was on the road. Great unit.