Mark_ Posted May 12, 2019 Share Posted May 12, 2019 After my disappointment at not being able to donut at Dunsfold, Im now looking at getting a slippy diff.Ive read the whole internet today, a nd it seems like the Titan is regarded as "best" for a 7, but the Quaife appears a little marmite.I like the fit and forget idea of the Quaife vs the Titan servicing requirements.My car is predominately used on the road, I may do the odd track day, but I wouldnt want to compromise road manners for track use if that makes sense ?Id be interested to hear your thoughts on how you felt it improved the handling as well.Id like to have the choice of controlled oversteer at will in addition to the other benefits of a slipper. Link to comment Share on other sites More sharing options...
7 wonders of the world Posted May 12, 2019 Share Posted May 12, 2019 Firstly the titan is not the best out there for a 7 - the Tracsport version knocks this into a cocked hat The Quaife is not an LSD its a torque biasing unit and never offer a lock up at all.If you want the best that's proven, silent and can handle the punishment without cooking its plates or breaking belleviles then this is where you need to go:page 2 on the linky below.https://www.tracsport.com/lsds Link to comment Share on other sites More sharing options...
ECR Posted May 12, 2019 Share Posted May 12, 2019 After many years with a Quaiffe ATB I swapped to a ZF plate type and much prefer it for track work. It seems to have noticeably reduced understeer on my VX which is nice ... For road work the quaiffe unit was fine, but not quite as kind as the ZF unit on track ... Link to comment Share on other sites More sharing options...
Wrightpayne Posted May 12, 2019 Share Posted May 12, 2019 I have a quaiffe ATB and am pleased with it - you can do doughnuts with one :-).I used to do a few track days and it was fine - the only downside I’ve read about is that if you lift a wheel it can snap drive shafts when it lands.If your seven experience was predominantly 10 10ths track work I’d go for a plate type diff. If you just want it more sure footed on the road then the ATB is the fit and forget choice - no special oils, additives, graunchy 3 point turns or rebuilds when the plates wear.Ian Link to comment Share on other sites More sharing options...
7 wonders of the world Posted May 12, 2019 Share Posted May 12, 2019 no special oils, additives, graunchy 3 point turns or rebuilds when the plates wear. If you fit the right plate LSD thats designed and built correctly you get all the benefits but none of the above.....Castrol B373 LSD oil is £8 / Ltr from Opie Link to comment Share on other sites More sharing options...
robert green Posted May 12, 2019 Share Posted May 12, 2019 I agree with wrightpayne. The atb is quiet, fit and forget, and most importantly allows donuts and power slides at will. I’ve not noticed understeer but most of my driving is road based and my track driving some way off ten tenths! Recommended for your usage by the sounds of things. Link to comment Share on other sites More sharing options...
DJ. Posted May 12, 2019 Share Posted May 12, 2019 I've put nearly 40,000 miles on a Titan plate diff. Donuts at Dunsfold were very easy, very enjoyable on a car limits day and the traction in bad conditions on road is much improved. As with all lsds you have to watch out for total loss of traction with too much power, ok when you expect it, but not so easy when it is some mud on the road.Noise wise, the odd clunking noise is nothing compared to all the other sounds from a Seven. I fitted mine on the advice of Phil at Road and Race and it hss been my best upgrade.Duncan Link to comment Share on other sites More sharing options...
Mark_ Posted May 12, 2019 Author Share Posted May 12, 2019 Thanks Robert, it does sound the best option I think.....Need to have a look down the back of the sofa for a spare bag of sand lol..... Link to comment Share on other sites More sharing options...
K7 VCT Posted May 12, 2019 Share Posted May 12, 2019 Interesting article, would like a lsd of sorts, but i have the BMW diff, the quaife atb sounds what i need. Would be nice to try one first however... Link to comment Share on other sites More sharing options...
7 wonders of the world Posted May 12, 2019 Share Posted May 12, 2019 Mark,suggest you do more research and talk to Steve @ Tracsport first, the performance between a Quaife and a decent plate LSD is quite significant.My ZF is silent in operation, Link to comment Share on other sites More sharing options...
Mark_ Posted May 12, 2019 Author Share Posted May 12, 2019 Not bothered about nosie at all tbh, just dont want to get caught out by a plate when a Torsen will give me what I need...Ive read today that this topic is complex, and its not a cheap thing to do, so checking all my options.....Will looks at Tracsport to, thanks. Link to comment Share on other sites More sharing options...
robert green Posted May 12, 2019 Share Posted May 12, 2019 Definitely speak to road and race. They supplied and fitted mine and may have some cost effective options if someone is upgrading... Link to comment Share on other sites More sharing options...
Wrightpayne Posted May 12, 2019 Share Posted May 12, 2019 Some interesting comments to a question I posed a while ago ...https://www.lotus7.club/forum/chitchat/lsd-road-safer-yn Link to comment Share on other sites More sharing options...
p.mole1 Posted May 13, 2019 Share Posted May 13, 2019 Just one thing to consider Burton are selling the Quaiffe diffs for £480. I put one in mine and do track days and it works for me.If you just do track days for fun and are not chasing lap times it will be fine and it is probably a better option for the road. Link to comment Share on other sites More sharing options...
david2 Posted May 13, 2019 Share Posted May 13, 2019 The Tracsport is mightily impressive, doesn't make any noise and sometimes the grip level is just unbelievable. Link to comment Share on other sites More sharing options...
Mark_ Posted May 15, 2019 Author Share Posted May 15, 2019 Hmmm...Having now spoken at length to Road and Race Transmissions, they have "nearly" convinced me that the Titan diff is the favoured option for a 7. Can you tell me what or how you noticed or felt RE handling after having one fitted or driving an open diff and then getting a car with..... Its a lump of cash to spend and find it doesnt suit my style so to speak.. Link to comment Share on other sites More sharing options...
7 wonders of the world Posted May 15, 2019 Share Posted May 15, 2019 Mark,Compared to the Tracsport the design and operation of the Titan is very poor, and has several flaws,I would speak to Steve first at SPC (Tracsport) before parting with your hard earned dosh, several members on here have swapped and found a significant difference.Steve does like a chat so have a wee before you call Link to comment Share on other sites More sharing options...
Ferrino Posted August 23, 2019 Share Posted August 23, 2019 Mark, what did you end up with: ATB or Plate LSD? I'm having the same discussion with Road & Race, who favor the plate type. I am predominantly road use, with a couple of track days per year. The ATB is commonly recommended for road use, but it's not clear to me if that's because it's cheaper/quieter/maintenance-free or if the behavior of the ATB is more predictable/progressive when it does engage. I've seen some folks remark that the ATB is progressive, while plate-type is more on/off. Link to comment Share on other sites More sharing options...
7 wonders of the world Posted August 23, 2019 Share Posted August 23, 2019 plate types if built to your requirements with optionson ramps and preload, Tracsport is the one to go for and ask Steve as SPC to build your finl drive for you too - both will e silent in operation Link to comment Share on other sites More sharing options...
Mark_ Posted August 23, 2019 Author Share Posted August 23, 2019 Hi Ferrino, currently Ive done nothing !Im unhappy with the handling on my 7 and would rather sort that first..... Howverem it is a very interesting subject.... Link to comment Share on other sites More sharing options...
David_B Posted July 25, 2023 Share Posted July 25, 2023 A video from RTQuaifeEngineering with a Quaife in a Caterham 420 : Link to comment Share on other sites More sharing options...
jbcollier Posted July 25, 2023 Share Posted July 25, 2023 Plate diffs can be set up in a myriad of ways from virtually fully-locked to fairly "slippery". This makes direct comparisons and definitive statements problematic. For the track, with a good experienced crew and a bucket full of spares, I think you can get more out of a plate diff. However, just like everything else on a race car, set-up will change with different tracks and different conditions on the same track.An ATB diff is just plain fit and forget. I have fitted ATBs to three cars now and am a big fan of them for road use. While not tuneable for the ultimate performance, the ATB is a consistent performer. I find it especially helpful when "dancing" with the limits in poor conditions. For obvious reasons, I simply do not drive to the limit on public roads in clean, dry conditions.YMMVJohn Link to comment Share on other sites More sharing options...
Drakman Posted July 26, 2023 Share Posted July 26, 2023 If you want an ATB, i think they are a good choice for a road only car, google "Wavetrac" differentials. Wavetrac are an ATB but they incorporate a wave type plate/washer that when the wheel wants to spin it moves to the high point on the wave and locks the diff. Quaife are not the only makers of ATB differentials. That said in the end i went with a drexler diff center built by RRT.My 2 cents spent.Dave Link to comment Share on other sites More sharing options...
K7 VCT Posted July 27, 2023 Share Posted July 27, 2023 Have had a quaife ATB in my BMW diff for 3 years , only road use. Its great and fun....fit and forget most importantly Link to comment Share on other sites More sharing options...
joaofscabrita Posted November 17, 2023 Share Posted November 17, 2023 (edited) On 27/07/2023 at 12:58, K7 VCT said: Have had a quaife ATB in my BMW diff for 3 years , only road use. Its great and fun....fit and forget most importantly Hey K7VCT.. The BMW Diff.. is the 168L right? Which quaife model did you go for? (Which is the right one for Caterhams with bmw diff?) I have a 2016 275S with it and want to go for a LSD.. Thank you in advance, Kind Regards Edited November 17, 2023 by joaofscabrita spell check 1 Link to comment Share on other sites More sharing options...
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