S85 DCT swap

[kolosy]

Originally Posted by amrazM

not looking to make this into a debate but if youre expecting an SMG to drive like an automatic youre going to be disappointed. its a manual transmission at the end of the day which can shift consistently faster than a manual.

i expected it to drive like a DCT

SMG is a crazy cool piece of engineering, but when you drive it back to back with a DCT (which I unfortunately did at the time, since I had the M5 and my E92 at the same time), you see it fall down. That's why it's interesting to me and a fair number of other people to explore a conversion.

[M3SQRD]

Originally Posted by amrazM

SMG more frequently as in they are getting to the age where pumps motor repairs and electric pump repairs are more frequent. if your experience with SMG is limited to an e46 m3 then we are not on the same page here.

I have driven them plenty but never owned a SMG III. Yes, there’s no comparison between the two SMGs. I’ve also driven a SMG I which was abysmal. So SMG III doesn’t have reliability issues? DCTs have been around since 2008 and very few major issues with them.

I believe M owners who bought SMGs and DCTs expecting them to act/perform like a conventional AT and then complained to BMW about them are the reason why BMW eliminated the DCT in the G8x. The G8x ZF 8AT is not even close to a F8x DCT. I’m surprised the F8x DCT made it to production.

[amrazM]

Originally Posted by M3SQRD

I have driven them plenty but never owned a SMG III. Yes, there’s no comparison between the two SMGs. I’ve also driven a SMG I which was abysmal. So SMG III doesn’t have reliability issues? DCTs have been around since 2008 and very few major issues with them.

I believe M owners who bought SMGs and DCTs expecting them to act/perform like a conventional AT and then complained to BMW about them are the reason why BMW eliminated the DCT in the G8x. The G8x ZF 8AT is not even close to a F8x DCT. I’m surprised the F8x DCT made it to production.

like with anything else smg will break down when you neglect it, can you drive a manual with a bad clutch or slave cylinder? if you've worked on a smg youll understand that a failing slave cylinder which will present you with signs for 100s of miles before it grenades the clutch, flywheel and the entire gearbox.

at the end of the day im not a supporter of dct behind the s85, the car drives nice enough with a stick shift for that to be the end all of smg issues/characteristics. people complained about dct because they bought a transmission expecting it to drive smoothly like an auto but shift like a manual, its one or the other. dct is shit, you cant launch it at the track strip, it will overheat on a roadcourse unless you spend $2000 on a pan and a cooler. at the end of the day im not the voice for automated transmissions, I prefer manual

[M3SQRD]

amrazM

So you’re not in favor of SMG to MT seaside to reliably, you just want to get rid of SMGs and DCTs in general

[amrazM]

Originally Posted by M3SQRD

amrazM

So you’re not in favor of SMG to MT seaside to reliably, you just want to get rid of SMGs and DCTs in general

Yes I will die on the "manual is for real drivers" hill

[M3SQRD]

Originally Posted by amrazM

Yes I will die on the "manual is for real drivers" hill

Autocorrect changed “swaps due” to “seaside”

[omgzirra_exe]

Originally Posted by amrazM

Yes I will die on the "manual is for real drivers" hill

I do love a 5/6SPD with dog engagement... there's something about just slamming it into gear. I miss my Evo 9 so much because of that. (made a horrible street car though with dogbox)

Personally, I just can't be bothered with manual anymore. I don't track as often, and I'd rather not sit in traffic with my foot on the clutch.

Although, I'd take a 6SD DG500 on an S85 or S65 any day of the week over a traditional manual.

[Tankslapper]

I was ok with performance of SMG3 on my M5. I couldn’t live with the anxiety of red cog of death so I moved on. I would buy one again in a heartbeat if it had a reliable DCT. Awesome car.