S6 C7 TRANS RELIABILITY/MAX HP

[qantus747]

Hi guys just curious to know how many ppl have had trans probs on there s6s and if they were related to tuning / power mods and if so what hp have ppl pushed through these trans before any issues what is max power rating?

[97B518TQM]

I don't have exact numbers for the absolute limits of the dsg but I can share my experience - 97k miles on my S6, Stage 3 for the last year or so (20k miles), about 530awhp on a mustang dyno (about 650 crank hp), no problems at all.
034MS put a big turbo on an A3 with the 3.2L engine and on stock DSG. It made over 600awhp with no trans failure or issues. This was also on a 2009 A3, so pretty old dsg.
I personally am not comfortable pushing mine any further by adding any more power and going with bigger turbos. Seems like the clutches start slipping at some point.

[nvygw171]

Hi guys just curious to know how many ppl have had trans probs on there s6s and if they were related to tuning / power mods and if so what hp have ppl pushed through these trans before any issues what is max power rating?

For me my clutch went as soon as I turned up to about the 750-800 torque range. This is with a DSG tune and hybrid gtx3071 turbos at 26 psi.
The trans seems to be happy at stage 2/3 race gas octane levels of power (low 700’s torque).

That being said the trans could be capable of more power holding but I was having mechatronic and I believe solenoid issues. I will be finishing up the upgraded clutch and solenoids when I’m back in town and will turn the boost up more until the next thing breaks.

[gk1]

It look like nvygw171 found the limits.
The only advertised limit I've ever seen is a torque limit of 550NM(406 ft-lbs) unsurprisingly exactly the max torque of a stock C7 4.0T however this is @ 9000RPM which implies maybe it can handle more at lower RPMs which it obviously can.

[vrod]

According to multiple sources (and my local gearbox-autoshop), the S-Tronic transmission is rated for 600nm and is the weakest link in the chain. The RS6 uses the 8-speed auto since it’s rated higher.

Many people have done stage 1 without issues but some have also lost the gearbox on it.. you gotta ask yourself if it’s worth the risk. I def. wouldn’t do it if the car was still within warranty. I have considered it myself though when mine is completely paid off. :D