Interesting torque figures for 7Spd Dual Clutch

**gavs** · 07-06-2011, 09:43 AM

Now, straight up, I don't know if the gearboxes are the same but seeing as the more powerfull 125TDI motor can only be had with a 6spd manual, I have my suspicions that they are very similar to the polo GTI gearbox...

This is from Drive.com.au about the new Tiguan

New VW Tiguan (launch drive models only)

155TSI
Engine: 2.0-litre turbo 4-cyl
Power: 155kW at 5300-6200rpm
Torque: 280Nm at 1700-5200rpm
Transmission: 7-spd dual-clutch auto, AWD
Fuel consumption and emissions: 8.6L/100km and 199g/km
0-100km/h: 7.4 seconds (claimed)

125TDI
Engine: 2.0-litre turbo diesel 4-cyl
Power: 125kW at 4200rpm
Torque: 350Nm at 1750-2500rpm
Transmission: 6-spd manual, AWD
Fuel consumption and emissions: 6.0L/100km and 158g/km
0-100km/h: 8.9 seconds (claimed)

132TSI
Engine: 2.0-litre turbo 4-cyl
Power: 132W at 4500-6200rpm
Torque: 280Nm at 1700-4500rpm
Transmission: 6-spd manual or 7-spd dual-clutch auto
Fuel consumption and emissions: 8.6L/100km and 199g/km
0-100km/h: 7.9 seconds (auto, claimed)

Seems the first admission that the 7spd Dual clutcher can indeed handle more than the supposed limit of 250Nm.... I noticed today also the new A1 Sport has 4 more kilowatts of power over the GTI, yet somehow has exactly the same torque figure.....

**kaanage** · 07-06-2011, 09:58 AM

There is an older spec 7 speed DSG that has a lower torque limit than the new one.
I think the Polo uses the older one to save on costs (but I could be wrong)

**Corey_R** · 07-06-2011, 10:34 AM

Sorry... you're both mistaken.

There are two 7sp DSG gearboxes... this has been discussed before, so I'm just going to copy and paste what I wrote then:

There are only 3 DSG models (in order of release).
1) 6sp wet clutch 350Nm
2) 7sp dry clutch 250Nm
3) 7sp wet clutch 550Nm

The "Original" DSG was the 6sp wet clutch DSG. VAG rate it for 350Nm and it has FWD and AWD versions.

Later came the 7sp dry clutch DSG. VAG rate it for 250Nm and it was designed to greatly reduce maintenance cost, weight etc.

Then came the 7sp wet clutch DSG from Audi. VAG rate it for 550Nm. It's said to be very similar in design to the 7sp PDK which Porsche designed and commissioned VF to build for them. It's a monster of a gearbox though...

The two 7sp gearboxes couldn't be further apart. The 7sp dry clutch weighing 70kg with two single plate dry clutches and having a transmission oil system with only 1.7L. The 7sp wet clutch weighing 140kg with a 10 plate clutch and a 12 plate clutch. It then has two separate transmission oil systems. A 7.5L system which lubricates the clutches and mechatronics. And a 4.3L system which lubricates the gears and differentials.

So it's not a case of there being an "older" and "newer" 7sp DSGs. They're COMPLETELY different gearboxes which are engineered for completely different purposes. Considering VW couldn't fit a 6sp manual gearbox into the Polo GTI, there is no way that the 7sp wet-clutch DSG could fit in the Polo GTI. Also, with the weight penalty, you probably wouldn't want it to!

**DoggieHowser** · 07-06-2011, 10:37 AM

I think the OP is aware of this.

But I did recall there was a newer DSG 7 speeder designed for their turbo diesel vehicles and given the price range, it's unlikely to be the monster version used in the Audi ones.

Ps wouldn't the modded R DSGs in danger of busting the limits if the gearbox?

**kaanage** · 07-06-2011, 10:39 AM

Originally Posted by Corey_R

Sorry... you're both mistaken.

Where am I wrong????

The older 7 speed DSG has a lower torque limit and is cheaper (and is lighter/smaller) than the newer one. I never said the designs were similar but they are both 7 speed and DSG

Originally Posted by DoggieHowser

IBut I did recall there was a newer DSG 7 speeder designed for their turbo diesel vehicles and given the price range, it's unlikely to be the monster version used in the Audi ones.

Yes it is an it is only used in the bigger turbo diesel vehicles. That's why the Golf/Jetta use the 6 speed DSG.

The turbo-diesel 6R Polo is relatively gutless so the older 7 speed DSG can handle its output.

Originally Posted by DoggieHowser

Ps wouldn't the modded R DSGs in danger of busting the limits if the gearbox?

That'd be gavs's concern

**DoggieHowser** · 07-06-2011, 10:42 AM

http://www.volkswagenag.com/vwag/vwc...new_dq500.html

**Transporter** · 07-06-2011, 10:45 AM

The Audi Q7 and Q5 has the 7sp longitudinally mounted DSG and it is very long g.box shorter version of it is in new T5's and Tiguans from MY11. It's very unlikely that any of the 7 speed DSG with wet clutch would fit in the Polo.