Finally past the break-in period on my new 245 DSG and this rather helpfully coincided with a visit to the Highlands, so I have been giving the car a bit of exercise. I've noticed the car seems to "attenuate" the power in 1st and 2nd gears? It's presumably deliberate as it doesn't spin the wheels at all, but there's a noticeable surge in power when it gets to 3rd gear. I've not been using launch control or deactivating the traction control . . . is this why?

 

Cheers

 

Rob

Torque limiter in 1st and 2nd gears to keep within the specified torque limit of the gearbox?

DQ380 DSG is rated at 380NM and the 245 has 370NM so within spec.

 

But I wouldn't be surprised if there's some protection of components in 1st and 2nd (Especially clutches) so there maybe some torque limiting going on.

 

Quite common on Ford's 

 

Bizarrely BMW are known to do it to ensure model placement.

Remember that the larger the gear ratio the more the input torque from the engine will be multiplied at the gearbox output shaft, so the bearings on the output shaft have a harder job in the lower gears. Hence why most car manufacturers use torque limiting in the lowest gears.

5 hours ago, yashicamat_returns said:

Finally past the break-in period on my new 245 DSG and this rather helpfully coincided with a visit to the Highlands, so I have been giving the car a bit of exercise. I've noticed the car seems to "attenuate" the power in 1st and 2nd gears? It's presumably deliberate as it doesn't spin the wheels at all, but there's a noticeable surge in power when it gets to 3rd gear. I've not been using launch control or deactivating the traction control . . . is this why?

 

Cheers

 

Rob

Tends to reduce the "wheel hop" until you really go for it but, you'll never really rid a VAG car of wheel hop. 

2 hours ago, themanwithnoaim said:

Tends to reduce the "wheel hop" until you really go for it but, you'll never really rid a VAG car of wheel hop. 

 

True, Passat, Superb, Golf, Octavia, Yeti, Fabia have all done it, even the lower powered stuff in the wet.

 

There is torque limiting and it's possible to remove it with OBD11 or VCDS. Also any good remap will remove the torque limiter.

6 minutes ago, StealthRS245 said:

There is torque limiting and it's possible to remove it with OBD11 or VCDS. Also any good remap will remove the torque limiter.

Just to ask a silly question....

Why risk the gearbox and front tyres with too much torque?

 

It's not risking the gearbox at all, it's there to stop the wheel hop. In fact the adaptation on OBD11 is called "starting vibration reduction" or something to that effect. Good springs, engine mounts and tyres go a long way towards limiting wheel hop so you can actually transfer that extra torque to the ground if you so desire.

Edited 24 February, 20206 yr by StealthRS245

2 minutes ago, JD52 said:

Just to ask a silly question....

Why risk the gearbox and front tyres with too much torque?

 

To drive faster, it's not rocket science generally, motor enthusiasts like to drive faster