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Message: <blockquote data-quote="k3nny" data-source="post: 645746" data-attributes="member: 5697">The DSG gearbox was designed by BorgWarner. The difference between the DSG box and other boxes is that the DSG uses 2 clutches. 1 for the odd gears and 1 for the even gears therefore enabling it to shift much faster and smoother than conventional gearboxes. This is good in theory but in practice, upshifts are very fast, as fast as 8ms per upshift in order which is faster than BMW's present SMG II which clocks in at 80ms however downshifts are a different story.The speed with upshifts are mostly attributed to the fact that while an odd gear clutch is engaged, ie:first gear, the even gear clutch is already on standby ready to shove itself in with the 2nd gear. However with downshifts, this gearbox can take up to 600ms because it has to wait for the computer to blip the throttle to match the engine speed to the gearbox speed.In the event that you want to change from 4th to 2nd or even 6th -2nd when approaching a sharp corner at a track, this can take up to 900ms. This is because the computer has to shift into an odd gear first with the other clutch before engaging the gear required/selected.As it needed to package 2 clutches into a limited space, BorgWarner mutiplate clutches which are smaller in diameter than conventional clutches and such a complex assembly can be questionable with it comes to frequent track use or possibly high powers such as modifying the TT 3.2 to make higher powers.</blockquote>

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