[rabbitsmell]

Is it possible with trans tuning software or bimmer code to switch the transmission to neutral when pulling both paddles, and into drive when pulling the + paddle ?

It’s a feature I liked in Ferraris and wondering if it could be adopted here.

[robopp]

Originally Posted by rabbitsmell

Is it possible with trans tuning software or bimmer code to switch the transmission to neutral when pulling both paddles, and into drive when pulling the + paddle ?

It’s a feature I liked in Ferraris and wondering if it could be adopted here.

Those are dual clutch. M2 is a ZF8 slushbox. Is true neutral even possible in the ZF8?

[Geighty7]

Originally Posted by robopp

Those are dual clutch. M2 is a ZF8 slushbox. Is true neutral even possible in the ZF8?

This ^^^ there is no true neutral since it’s all turbine fan lol.

[KC87ZB]

I’m going to speak out of my butt a bit on this specific transmission and disagree with you, the torque converter does not provide the neutral selection of the transmission otherwise you could not rev it in neutral. Neutral is provided by disconnecting the input shaft from the output shaft by not selecting any gears.

Not exactly sure of the zf8 on input versus output shaft but it is not the torque converter that provides the neutral function.

[Geighty7]

Originally Posted by KC87ZB

I’m going to speak out of my butt a bit on this specific transmission and disagree with you, the torque converter does not provide the neutral selection of the transmission otherwise you could not rev it in neutral. Neutral is provided by disconnecting the input shaft from the output shaft by not selecting any gears.

Not exactly sure of the zf8 on input versus output shaft but it is not the torque converter that provides the neutral function.

Not trying to be rude what so ever, in fact I did this same thing. You are right in a sense, but pretty wrong here. Check out on YouTube how a ZF8 TC works and come back and reread his post. It’s actually super interesting how they work.

[fangelov]

NIC (Neutral Idle Control) is not a simple disengagement of the TC (Torque Converter), which we’d notice like depressing a clutch. It is a mechanism for reducing the converter residual torque.

We need to picture the gearbox rotational parts coming to a halt when we are stationary, (no output), with the engine still idling. This means in a conventional arrangement the TC has 100% slip, the source of any creep and drag losses.

The idle control system is designed to reduce the engine idle torque through the TC, reduce the slip down to something like 10%. While stationary with the foot on the brake, one of the gearbox brake packs (‘B’ in any ZF 8-speed schematic) is released, the brake pack is designed for continuous duty in idle control mode. Some of the gear train therefore rotates, ‘idling’ without output drive. It is quite a simple solution, using parts already in the gearbox.

As we ease off the foot brake and the brake pack engages again, (increasing TC slip) we will clearly feel the creep as if the whole operation is not working.

If you try a quick release of the foot brake, you may notice you can get a split second where there appears no engagement, virtually no TC induced creep.

[LydiaFritsche]

Thank you for the advice, I appreciate it.

[BroDoze]

If one wanted to rev their engine while they were rolling, in an MT, that’s easy - just push the clutch in and tap the gas.
Is that possible with a ZF8? Or does it have to be stopped, in park?

[gondolafanclub]

You just gotta turn off traction control and light up those wheels brother

[OneTwo3]

Can’t you just throw it in N while it’s rolling and rev it?

[rabbitsmell]

Originally Posted by OneTwo3

Can’t you just throw it in N while it’s rolling and rev it?

You can but you will need to press firmly on the brake to put back in gear

[Tag]

Originally Posted by rabbitsmell

You can but you will need to press firmly on the brake to put back in gear

...and you must be under 30yrs of age for this to even be remotely acceptable by society or risk being perceived as a douchepump.

[BroDoze]

Originally Posted by Tag

douchepump

[reallymarkedup]

Originally Posted by rabbitsmell

You can but you will need to press firmly on the brake to put back in gear

You really can't go from neutral to gear without using the brake? For park that makes sense, but not for neutral. I haven't driven a huge number of automatic torque converter transmissions but every single one I have driven has always let you go in and out of neutral.