Quaife LSD fitted & RR results

[Vtec Abuser]

What clutch worries do you have mate?

Ask Hurdy about that! 

Torque figures aren't huge, but it's a beauty of a flat torque curve and holds it all the way.. 

Hmmmm . . . the torque curve may be flat, but what kills the DSG clutches is the rapid rise of the torque curve, and Neil's plot is showing that.

Neil, if your remap is a custom one, I'd be tempted to ask them for a "softer" rise to the torque curve, rather than the instant "full-on" curve that you have at the mo.

TT if you think that is a rapid rise in his torque curve, you wanna see mine...  Neils is like a flatlinner compared to mine..  , if that kills the clutch, then i'm fooked (although it has been fine for 15k, I may add) 

[chungster]

Did they really do that run in 6th gear??   

[Hurdy]

ok call me a knob but are those figures flywheel hp or whp?

Top of the graph says engine power and torque.

DSG clutch issues are very much a hit and miss affair. One box will be okay for 400lbft - the next will struggle over 280lbft. You pays your money and takes your chance Neil

Mine is running okay at the moment 333bhp and 335lbft@fly. Thanks to Sean's (T_T) suggestion to get the DSG service done

If anything fitting an ATB diff should give you more control of the traction, which in turn means less activation of the traction control - so less instances of cutting the power and the suddenly re-delivering it.

[Teutonic_Tamer]

What clutch worries do you have mate?

Ask Hurdy about that! 

Torque figures aren't huge, but it's a beauty of a flat torque curve and holds it all the way.. 

Hmmmm . . . the torque curve may be flat, but what kills the DSG clutches is the rapid rise of the torque curve, and Neil's plot is showing that.

Neil, if your remap is a custom one, I'd be tempted to ask them for a "softer" rise to the torque curve, rather than the instant "full-on" curve that you have at the mo.

TT if you think that is a rapid rise in his torque curve, you wanna see mine...  Neils is like a flatlinner compared to mine..  , if that kills the clutch, then i'm fooked (although it has been fine for 15k, I may add) 

A "flatline" torque curve isn't really the most desireable for a DSG.  What you really need is a progressive, gradual rise - which shouldn't put too much of a sudden rush on the clutch.  And another thing, flatline torque is really meant to be desireable for diesels - petrols do better with a humped shaped torque curve.

[Teutonic_Tamer]

DSG clutch issues are very much a hit and miss affair. One box will be okay for 400lbft - the next will struggle over 280lbft. You pays your money and takes your chance Neil

I think it is more on how you actually drive which determines the life of the clutch.  No different to a conventional manual clutch in that respect.

Mine is running okay at the moment 333bhp and 335lbft@fly. Thanks to Sean's (T_T) suggestion to get the DSG service done

What did you do to resolve it then - just a fluid and filter change, or did you replace the clutch pack too?

If anything fitting an ATB diff should give you more control of the traction, which in turn means less activation of the traction control - so less instances of cutting the power and the suddenly re-delivering it.

Correct.  It is the grip-slip-grip syndrome which can put tremendous changes in stress on the clutch, as well as all the driveline components and engine mounts.  Smooth out the traction issues, and your clutch will also benefit.

[E30M3]

Congrats on the mod, its definalty something i want to do ! Let us know how it goes at Silverstone, i have a feeling it will make the car a much sharper driving tool , something ot go scare the Porsches /M3s !

[Vtec Abuser]

A "flatline" torque curve isn't really the most desireable for a DSG.  What you really need is a progressive, gradual rise - which shouldn't put too much of a sudden rush on the clutch.  And another thing, flatline torque is really meant to be desireable for diesels - petrols do better with a humped shaped torque curve.

Not like this then... 
http://www.awesome-gti.co.uk/rollingroad/graph/rr.scn_260408/ryan.jpg

Flatline torque curves are normally on big V8's etc also aren't they?

[Hurdy]

Mine is running okay at the moment 333bhp and 335lbft@fly. Thanks to Sean's (T_T) suggestion to get the DSG service done

What did you do to resolve it then - just a fluid and filter change, or did you replace the clutch pack too?

Took it in for the DSG service - They thought I was mental coming in at 10k miles

Once I'd explained and they had given me a semi-lecture about warranty and how I'd have to pay for the service (DUH!) as my service pack doesn't cover it, they got on with the job.

Afterwards they said the oil looked fine and they didn't find any trace of bits or burning of the oil. The car did feel a bit "odd" once I took it out after - as if the change-up points were different and changed up slightly later in D, but I must have got used to it (or it to me!) now as I don't notice it.

I didn't have the plates replaced as I thought I'd see how the service went first I still want to go for an uprated clutchpack and Quaife, but just haven't got the time to spare at the moment (earning instead of spending!).

I haven't noticed any surging since, so (crossed fingers!) I'm hoping it'll carry on this way

Sorry for the slight thread hijack Neil - but it is slightly relevant

[RedRobin]

....

At £1500 from AmD, that's now 4 different prices, all within about £30 of each other.

Even without going on the track or driving very enthusiastically, I'm finding the Quaife ATB seriously beneficial. Last night I drove home about 100 miles in torrential rain and the diff just added to the feeling of being very sure-footed. Even through roads partly awash and wet leaves. I was taking it steady but was aware of it helping.

On my trip to Cardiff earlier in the week, it was bright and sunny conditions - I had to strongly boot it onto a big roundabout and she did that scrabbling judder trying to find grip, but it felt much 'softer' than before I had the ATB and the judder was over very quickly.

Expensive (relatively), subtle, but very good mod imo.

The points made about it reducing instances of ESP kicking in etc are actually easy to overlook as being beneficial.