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      10-27-2018, 12:10 AM   #11
upsidedownfunnel
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Drives: 2014 335i
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2014 BMW 335i  [0.00]
Quote:
Originally Posted by agentrnge View Post
How solidly do the ZF8's torque converters lock while in gear? Im sure there is variation in the tunes for all the various standard/sport/m-sport/m-performance/full-blown-M/etc configurations ( and modes )
When in manual mode will the TC still slip a little when you are on/off/on throttle, whether than be heavy or light throttle. Even if you are in one gear "manually" that wobbly slip that I associate with every normal automatic i have ever driven is annoying. Curious how it will be.
The TC is basically only open when starting and stopping. In normal driving while the car is moving, the torque converter pretty much stays locked.

When I'm driving my wife's car in Sport+ mode, the shifts are really fast, responsive to manual shift requests, and shifts hard. If you want an automatic, it shouldn't matter whether you get a ZF 8HP or a DCT. It's basically the same thing now.

A lot of the reason supercars use DCTs is because mid-rear engine designs cannot easily fit a torque converted automatic. Even the RS4 and the Alfa Giulia QV use the ZF 8HP. From now on, I doubt you'll be seeing many DCTs on front longitudinally mounted engine cars. There's just no practical reason for it. The ZF 8HP has basically the same performance as a DCT and can transform from a hard shifting sporty transmission to a luxuriously smooth transmission with the touch of a button. It's overall far superior to a DCT.
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