Not to stir up any $hit, bu I'm kindda doubting the 8ms thing, actually. I mean, that's mighty impressive and everything, but how are they measuring that?

Is it the time where no connection exists between the engine and the output shaft? In other words, the time where neither clutch is, to any degree, engaged? Surely there must be some time allowed for things to slow down in the engine and so forth and 8ms is a really short time for all that inertia to change velocity.

btw, EVOgasmIX, the DSG will be proprietary stuff no doubt. But other than voiding the warranty, there's nothing to prevent anyone from, for example, making different ratio sets or clutches to fit the gearbox. The same goes for the ECU that controls the 'box itself. As far as I'm aware, their clutches are based on conventional technology (just strangely shaped) so there's nothing to stop Exedy making a clutch that fits that particular hole and can be actuated in the same way as the oem clutch. I don't know if they'd do that, but they could. In fact, you could make any part for it as long as each individual part does not use or contain patented technology owned by BW or anyone else. Since most of the gearbox is based on conventional technology, it's kindda open. (the patent for a dual clutch goes back to something like the 1940's).

The only problem with this is that not many people are familiar with it's design and operation and blowing one up would be really expensive, i bet.

 

Well, to me that sounds impossible, as you say they use two clutches and when you are in 1'st gear 2'nd gear is already in place and the 2'nd clutch is ready to go. But say that you are in 3'rd gear and 4'th is already ready but then you suddenly decide to down shift instead then 4'th is in place and 3'rd is engaged but you want 2'nd?

 

Well, let me say that there is a lag (power outage) at times with the down shifting. That makes me think it might not be as good as a MT for the tracks , when you want total control of the gears/revs/clutch. All in all though, the VW/Audi DSG is light years ahead of anything else we have seen on the street markets yet. As far as the question of its power handling capability, check out this GTI with DSG (W12 VW Phaeton engine in it), WOW!!

http://www.cartoday.com/content/news...ge.asp?in=8542

 

I think that the system has to be strong and shift as well if not better than the DSG in vws or mitsubishi will not sell my evos with them

 

after all the evo is not an M3 or RS4

 

There is a computer that makes excellent guesses in this regard. I have caught the transmission with its pants down, so to speak, rarely, and even on those occasions it still shifts faster than I do with a manual.

 

When you're in fourth and you want to go to second you would pull on the shift down paddle twice to go to second, simple as that.

 

i imagine thats why it takes longer than .8ms to downshift.

 

In the process of going from lets say sixth gear to second gear, you will have to go through fifth, fourth, and third to get into second. You cannot skip gears in a sequential transmission. You have to go from one gear to another gear sequentially up and sequentially down.

 

^ It doens't quite do that, in fact. It goes from 6th->5th->2nd (in a DSG). Mainly it needs to do this 'cos both 6th and 2nd (and 4th for that matter) are on the same shaft. One imagines that 6th->3rd could happen considerably quicker.

Curiously, the 'new' dsg has 7 speed. Perhaps it's trying to leap-frog this problem. Perhaps by having a closer ratio you can perhaps somehow set the ratios so that you skip 2 gears rather than one(?). So, a 6th->2nd would be substitued by 7th->2nd or something.

see: http://www.autozine.org/technical_sc...ear_manual.htm 2nd paragraph from the bottom.