I'm not sure if your box is different to mine but if it says S1 S2 etc then you've enabled manual shifting - it should say SD.
Ignore that - your box is different to mine!
Ignore that - your box is different to mine!
DCT Gearbox better NOT in sport?
- Thread starter PixelPeepZ4
- Start date
I know nothing about gearboxes, so this is more of a showerthought, but in mind it seems logical so hear me out. (Also, I have the ZF so I don't 100% know the gearing of the DCT, so my source is AutoTopNL videos 
)
DCT's have a separate clutch system for odd and even gears (i.e. R, 1, 3, 5, 7 / 2, 4, 6)
Firstly, let's talk about doing it in comfort mode:
As one gear is odd and the other is even (5 to 2), all the odd clutch system has to do is disengage 5th. At the same time it is doing that, the even clutch system can be preparing to engage 2nd. As soon as 5th is disengaged, 2nd can be engaged, with almost no delay.
Now let's talk about doing it in sport mode:
As both gears are even (4 to 2), the same clutch system has to deal with everything. It can't even think about finding 2nd let alone engage it until it has disengaged 6th. This is why I think the pickup is faster in normal mode.
TL;DR: Odd to even or even to odd = Fast. Odd to odd or even to even = Not as fast. But I might be wrong, in which case bring me out back and shoot me
)DCT's have a separate clutch system for odd and even gears (i.e. R, 1, 3, 5, 7 / 2, 4, 6)
- 40mph in comfort will be 5th gear
- 40mph in sport will be 4th gear
- Flooring it would drop it down to 2nd
Firstly, let's talk about doing it in comfort mode:
As one gear is odd and the other is even (5 to 2), all the odd clutch system has to do is disengage 5th. At the same time it is doing that, the even clutch system can be preparing to engage 2nd. As soon as 5th is disengaged, 2nd can be engaged, with almost no delay.
Now let's talk about doing it in sport mode:
As both gears are even (4 to 2), the same clutch system has to deal with everything. It can't even think about finding 2nd let alone engage it until it has disengaged 6th. This is why I think the pickup is faster in normal mode.
TL;DR: Odd to even or even to odd = Fast. Odd to odd or even to even = Not as fast. But I might be wrong, in which case bring me out back and shoot me
On mine, if I select Sport and S, it turns it into a nutter. I do this wherever I get to an exciting bit of twisty road with short straights. As soon as I get behind someone again I put it back to D.
Occasionally I’ll use Sport+ and S but in reality there is very little difference on the road.
Occasionally I’ll use Sport+ and S but in reality there is very little difference on the road.
Mine is the older five speed box but I nearly always drive it in SD (pushed over to the left). If I leave it in D then it feels sluggish and too eager to change up. SD makes it change down one or two gears and it feels a whole lot more responsive. If I press the sport button as well I find it quite difficult to get the car moving without smacking my head against the head rest! I tend to set off then press S as it’s just smoother like that. I don’t like the extra weight it gives the steering though so I don’t use it that often.
Attleborough, Norfolk
Rockhopper said:
OK, off at a bit of a tangent, but this does relate to wifey's 2.5i auto............... what exactly is the difference between pushing it over to the left and leaving it there, or pushing the sport button? Both actions show SD on the dash. I thought pushing it over just gave you the option to manually control it, but essentially it was still in Sport?
YES it certainly does despite what people might tell you, this is noticeable over long trips especially. After driving around 340 miles sedately to this years national meet my DCT in normal was changing so gently you could hardly tell and into 7th at just over 40mph! It was a delight (but boring). After Sundays madness it was a completely different experience, not changing gear till around 3100rpm!!!. Again after the return trip it was nice, gentle and quiet.Pbondar said:
enuff_zed said:
Pushing the sport button does the same as pushing the gear lever to the left - but - it also makes the throttle more responsive (so you have to press it less to get the same amount of go - it doesn't give you more power) and it stiffens up the steering (which i don't like).
Yes, thats what seems to happen.
mcbutler said:
I hate to bring facts to the discussion but I have a copy of all the shift points pulled straight out of the code running in the DCT and they are set in stone (ROM). There's 21 individual tables but only about 10 are actually used, they don't change depending on how fast you drove last Sunday.
A
Anonymous
Guest
A
Anonymous
Guest
mcbutler said:
Both to be specific it referred to the DCT as in 35i 35is and ZF6HP fitted to 23i and 30i