Anyone have any info on if this is a possibility. This is from an old post from Neil M. about the 2 different ZF trannies used in A4/S4.

The following specs apply to both the quattro (5 HP 19 FLA) and FWD (5 HP 19 FL) tiptronics:

Transmission capacity:
T(max) Engine at 3500 rpm = 310 Nm
P(max) at 5500 rpm = 169 kW
(230 HP)
n(max) in 1st to 4th gear = 6540 rpm
n(max) in 5th gear = 5000 rpm
n(max) KD shift = 6000 rpm
T(max) Turbine = 540 Nm

Converter:
W 254 S with controlled converter clutch
T(p) = 90 -230 Nm at n(p) = 2000 rpm

Ratios:
1st gear 3.67
2nd gear 2.00
3rd gear 1.41
4th gear 1.00
5th gear 0.74
Rev. gear 4.10
Constant 2.2 ... 3.7

I contacted ZF Getriebe GmbH for information on the 5 HP 24 tiptronic transmission they supply for the S4 and A6 2.7T. The Tip in these cars is a 5-speed auto transmission with integrated center torsen differential and a front axle differential.

The Tip can handle 308 hp and 310 ft-lbs. They show 313 HP, but that doesn't follow the math I used:

HP = kW x 1.341
ft-lbs = Nm x .73756

Doesn't look like the Tip will be able to handle a chip upgrade with it only rated for 310 ft-lbs, but my A4 Tip is only rated for 228 ft-lbs and it seems to handle the PES with 265 ft-lbs with no trouble so far.

Transmission capacity:
T(max) Engine at 3500 rpm = 420 Nm
P(max) at 5500 rpm = 230 kW (313 HP)
n(max) in 1st to 4th gear = 7200 rpm
n(max) in 5th gear = 6200 rpm
n(max) KD shift = 7000 rpm
T(max) Turbine foward/reverse = 800 Nm/500 Nm
Converter:
W 260 S with 2 controlled converter clutches
T(p) = 78 -281 Nm at n(p) = 2000 rpm
Ratios:
1st gear 3.57
2nd gear 2.20
3rd gear 1.51
4th gear 1.00
5th gear 0.80
Rev. gear 4.10
Constant 2.63 ... 3.73

Weight with oil 141.1 kg

OH- you said Tip..... nevermind ;p<ul><li><a href="http://forums.audiworld.com/performance/msgs/43065.phtml">http://forums.audiworld.com/performance/msgs/43065.phtml</a</li></ul>

If you could make the S4 6speed to to the 1.8T, than I don't see a reason you couldn't do the same to the S4 tip tranny. Whatever was done to make the surfaces mount wouldnt have to be done I'd gather.

Altho.. from the specs I posted, there are some integrated pieces on the S4 tranny (integrated center torsen differential and a front axle differential) that I'm not sure if they are in the A4 tip tranny

Hopefully someone who knows about this can help

more like i posted it, then realized it said TIP
so i edited it




oops.. didnt mean to come off as a jerk ;p

An auto transmission's torque converter mounts to a flexplate, not a flywheel, I think that will be part of the problem.

Besides why do this? If youre looking to APR Stage III or PES T-28 upgrade, why not do the Level 10 transmission upgrade.

So there would be a flexplate in either car.

The Level 10 upgrade is far from proven as a capable upgrade. The S4 tip tranny is proven to handle the 300/300'ish power. You can get junked trannies with a 90 day warranty for $1500-3500, so depending on what you find, it's the same cost of the L10 upgrade.

it's a different flexplate, likely. Do you know,is the flexplate in a 1.8 the same part # as in the S4? I'm thinking not likely, but any of the Etka's out there could take a look and help you.

Good Luck