S4 Now avaialbe only with automatic torque converter
01-05-2019, 10:48 AM
#11
AudiWorld Member
no worries, just clarifying so we can complain about the rs5's torque converter. haha.
I can't really fault the zf8 in the b9 S4, it fits, but I would prefer a rougher-around-the-edges feel (raw performance) for RS cars. they won't offer a rs4 sedan, so it doesn't really matter to me anyways I guess.
I can't really fault the zf8 in the b9 S4, it fits, but I would prefer a rougher-around-the-edges feel (raw performance) for RS cars. they won't offer a rs4 sedan, so it doesn't really matter to me anyways I guess.
Last edited by will13k7; 01-05-2019 at 10:53 AM.
01-05-2019, 01:40 PM
#12
AudiWorld Senior Member
The A4 is my first auto tranny in over 30 years, I'm very relieved that I haven't made the clutch mistake with this car.
01-05-2019, 07:49 PM
#13
The S tronic could not handle the amount of torque generated by the new 3.0T motor at such a low RPM. As such, a Tiptronic transmission was used. It also improved low speed smoothness and drivability. There is really no downside and only upsides. The shifts when in the DSP mode (launch mode) are almost as fast as the S tronic as well.
01-06-2019, 08:23 AM
#14
AudiWorld Junior Member
Thread Starter
Join Date: May 2018
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
As to the the non reflective members such as quoted above, this is why: When going downhill on an icy road, the Torsen system still in the S4 requires a load to activate the torque transfer against, If the the torque converter is idling, there is no load and the torque transfer will not occur. Having a DSG keeps the engine under load and enables torque transfer. The 2017 3.0 T was available briefly with DSG so I was considering purchasing one, but not now.
Further, with the upcoming ZF tranny and the Ultra torque vectoring in the B9 successor, the new generation Audi drive train will be essentially no different than the last generation ATS. If you don’t care that old an generation Detroit Product has essentially the same drive train as your new generation. ‘Bahn Burner, have at it. Enjoy the expensive purchase price, expensive parts and expensive service for essentially no performance gain while I travel, eat well and drink well with the money I saved.
01-06-2019, 08:47 AM
#15
AudiWorld Super User
Further, with the upcoming ZF tranny and the Ultra torque vectoring in the B9 successor, the new generation Audi drive train will be essentially no different than the last generation ATS. If you don’t care that old an generation Detroit Product has essentially the same drive train as your new generation. ‘Bahn Burner, have at it. Enjoy the expensive purchase price, expensive parts and expensive service for essentially no performance gain while I travel, eat well and drink well with the money I saved.
How is the B10 drivetrain relevant to the B9? Also, the S4 no longer uses a Torsen center differential.
Last edited by JD15; 01-06-2019 at 08:51 AM.
01-06-2019, 09:18 AM
#16
AudiWorld Junior Member
Thread Starter
Join Date: May 2018
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
01-06-2019, 09:48 AM
#17
AudiWorld Super User
Um, no. The B9 uses a crown gear differential, which is a full-time AWD system and nothing like the Haldex system used in the ATS. Why are you so obsessed with the ATS anyway?
Last edited by JD15; 01-06-2019 at 09:50 AM.
01-07-2019, 08:46 AM
#18
AudiWorld Member
I feel they might switch to a standard torque converter auto, considering the new M5 ditched the Dual clutch and now has a 8 Speed auto with a TQ converter
01-07-2019, 09:35 AM
#19
AudiWorld Super User
Last edited by superswiss; 01-07-2019 at 09:38 AM.
01-07-2019, 11:49 AM
#20
AudiWorld Super User
Not trying to get invovled, but just wanted to correct the wrong information. The B9 doesn't use the crown gear differential. The crown gear was short lived. It made its debut in the RS5, then found its way into the B8.5 S4/5 S-tronic, but then pretty much disappeared. Audi went back to a planetary gear design. It's actually pretty much the same as the Torsen T3, but not sure what the licensing situation is. Audi no longer uses the Torsen name, but the design of the Audi diff is the same as the Torsen T3. It functions similar to the crown-gear differential. It also uses clutch packs, but as said it's a planetary gear design.