DCT Transmission Build Project

allmotor_2000 · 08-29-2016, 02:15 PM

With the existing power levels of 1000ft-lb torque and 1000hp and projected power levels in the 1500hp range, the DCT needs some updates. Given the success with the SSP clutches so far, I have decided to have Kris over at SSP build the DCT transmission.

Details, pictures and more info to follow but I wanted to start a thread up.

Like a few other people I also suffer from the Gearshift Rod 5-7 issue (not related to the clutch... rather something inherent in this transmission design). This is occurring on WOT 4th gear upshift to 5th gear where it throws a DTML and you effectively lose 5th gear until the engine is re-started. It is not fully clear what the root cause is, but there are theories. I expect taking the transmission apart and re-building it will shed more clues. I believe it is a matter of time more folks will start seeing this issue as the gears start wearing down.

Anyways, car should have the trans out this week and shipped over to Kris to work his magic.

KMORGSM5 · 08-29-2016, 02:40 PM

I'm really looking forward to this tread!

Used2be · 08-29-2016, 02:59 PM

[QUOTE=allmotor_2000;20484708]Like a few other people I also suffer from the Gearshift Rod 5-7 issue (not related to the clutch... rather something inherent in this transmission design). This is occurring on WOT 4th gear upshift to 5th gear where it throws a DTML and you effectively lose 5th gear until the engine is re-started. It is not fully clear what the root cause is, but there are theories.QUOTE]

If there is no damage to the transmission gears, wouldn't the cause most likely be with the electronics? Since in the DCT the gears are already engaged before the shift, unlike the old 4 or 5 speed manual gearboxes, what mechanical malfunction would cause a DTML? Is the high torque twisting something it shouldn't? But with a restart all is well, so I wouldn't think there is any structural damage. Following this with interest also.

lunden · 08-29-2016, 03:53 PM

Ram, I told you what to do on this.. You need to clean it inside, either by flushing oil through or magnets. BMW does NOT do this and they most likely replace the trans.

allmotor_2000 · 08-29-2016, 06:36 PM

Quote:

Originally Posted by lunden

Ram, I told you what to do on this.. You need to clean it inside, either by flushing oil through or magnets. BMW does NOT do this and they most likely replace the trans.

Yes cleaning the magnets is part of the rebuild among other things. Any which way the tranny has to come out!

Msizzle · 08-29-2016, 07:35 PM

subd

ur20v · 08-29-2016, 08:36 PM

Great thread... I liked similar threads done on GTR's so this soud be good and informative

SSPKris · 08-29-2016, 10:48 PM

This is going to be an informative and straight forward transmission build for everyone to follow. We will document the entire build over a 2-4 week period. Trinity Auto will be doing the initial removal of the transmission within the next week. Our goal on this build is 1000ft/lb. torque. We will be installing some very new products that are not yet available. We have been doing some extensive testing behind the scenes.

We will also show you how to do some of this preventative maintenance to save yourself some dollars from the dealerships.

SSP

m5 guy · 08-29-2016, 11:24 PM

Subscribed!

m5james · 08-30-2016, 12:35 AM

Quote:

Originally Posted by SSPKris

This is going to be an informative and straight forward transmission build for everyone to follow. We will document the entire build over a 2-4 week period. Trinity Auto will be doing the initial removal of the transmission within the next week. Our goal on this build is 1000ft/lb. torque. We will be installing some very new products that are not yet available. We have been doing some extensive testing behind the scenes.

We will also show you how to do some of this preventative maintenance to save yourself some dollars from the dealerships.

SSP

S63 powered X's are slipping around 670hp, do you have anything for the 6HP26S?

ur20v · 08-30-2016, 04:51 AM

^^^LOTS of pictures!

fhaze3 · 08-30-2016, 07:29 AM

It would be ok if this gets tagged with DCTPorn. Just sayin'.

SSPKris · 08-30-2016, 08:19 AM

Quote:

Originally Posted by m5james

S63 powered X's are slipping around 670hp, do you have anything for the 6HP26S?

Sorry we are not building automatic transmissions at this time. This transmission was designed for 440 ft/lbs. of torque.

SSP

lexlueger · 08-30-2016, 08:23 AM

Sub'd

TheHouseWon · 08-30-2016, 02:53 PM

Subscribing

BPMSport · 08-30-2016, 04:11 PM

Looking forward to this

Ram look for an email from me tomorrow w/ the file. Sounds like I need to raise max clutch torque again

allmotor_2000 · 08-30-2016, 04:53 PM

Quote:

Originally Posted by Mike Benvo

Looking forward to this

Ram look for an email from me tomorrow w/ the file. Sounds like I need to raise max clutch torque again

Thx - need to raise the bar

allmotor_2000 · 08-31-2016, 10:35 AM

Step #1 - Get the car to Trinity Autosport and in the capable hands of Joe Yang. Tow company just picked her up...

TheHouseWon · 08-31-2016, 11:38 AM

Looks like the ultimate sleeper !

allmotor_2000 · 08-31-2016, 12:19 PM

Quote:

Originally Posted by TheHouseWon

Looks like the ultimate sleeper !

She is bone stock... lol

luis_hp64 · 08-31-2016, 07:44 PM

Looking forward to see this!!!! Best of luck guys, and thanks for being the pioneers, putting the time, and effort in order to make it easier for all of us!

ur20v · 08-31-2016, 09:21 PM

Ram, did your DTC give up, blow up, start slipping or is this just ready for the next push in the power war I think you are allready wining?

08-29-2016, 02:15 PM	#1
allmotor_2000 F10 1/4 WR: 9.9s / 142.5mph 1/2 WR: 175.5mph 1087 Rep 1,968 Posts Drives: 2018 RS3, 991 Turbo Join Date: Jul 2014 Location: Westlake Village, CA iTrader: (0)	DCT Transmission Build Project With the existing power levels of 1000ft-lb torque and 1000hp and projected power levels in the 1500hp range, the DCT needs some updates. Given the success with the SSP clutches so far, I have decided to have Kris over at SSP build the DCT transmission. Details, pictures and more info to follow but I wanted to start a thread up. Like a few other people I also suffer from the Gearshift Rod 5-7 issue (not related to the clutch... rather something inherent in this transmission design). This is occurring on WOT 4th gear upshift to 5th gear where it throws a DTML and you effectively lose 5th gear until the engine is re-started. It is not fully clear what the root cause is, but there are theories. I expect taking the transmission apart and re-building it will shed more clues. I believe it is a matter of time more folks will start seeing this issue as the gears start wearing down. Anyways, car should have the trans out this week and shipped over to Kris to work his magic.
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08-29-2016, 02:40 PM	#2
KMORGSM5 Captain 320 Rep 843 Posts Drives: 14 CP M5 Join Date: Feb 2016 Location: South Florida iTrader: (0)	I'm really looking forward to this tread!
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08-29-2016, 02:59 PM	#3
Used2be Perennial PFC 336 Rep 1,274 Posts Drives: F90 M5 DG/Aragon Join Date: Oct 2012 Location: Michigan, USA iTrader: (0)	[QUOTE=allmotor_2000;20484708]Like a few other people I also suffer from the Gearshift Rod 5-7 issue (not related to the clutch... rather something inherent in this transmission design). This is occurring on WOT 4th gear upshift to 5th gear where it throws a DTML and you effectively lose 5th gear until the engine is re-started. It is not fully clear what the root cause is, but there are theories.QUOTE] If there is no damage to the transmission gears, wouldn't the cause most likely be with the electronics? Since in the DCT the gears are already engaged before the shift, unlike the old 4 or 5 speed manual gearboxes, what mechanical malfunction would cause a DTML? Is the high torque twisting something it shouldn't? But with a restart all is well, so I wouldn't think there is any structural damage. Following this with interest also.
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08-29-2016, 03:53 PM	#4
lunden Banned 32 Rep 140 Posts Drives: BMW M6 F13 800RR Join Date: Mar 2016 Location: Europe iTrader: (0)	Ram, I told you what to do on this.. You need to clean it inside, either by flushing oil through or magnets. BMW does NOT do this and they most likely replace the trans.
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08-29-2016, 07:35 PM	#6
Msizzle Lieutenant 165 Rep 402 Posts Drives: 2013 M6 Coupe Join Date: Mar 2015 Location: Long Island, NY iTrader: (0)	subd
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08-29-2016, 08:36 PM	#7
ur20v Captain 184 Rep 788 Posts Drives: F10 M5 Join Date: Apr 2016 Location: WA Australia iTrader: (0)	Great thread... I liked similar threads done on GTR's so this soud be good and informative
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08-29-2016, 10:48 PM	#8
SSPKris Lieutenant 200 Rep 466 Posts Drives: Nissan GTR Join Date: Feb 2012 Location: USA iTrader: (0)	This is going to be an informative and straight forward transmission build for everyone to follow. We will document the entire build over a 2-4 week period. Trinity Auto will be doing the initial removal of the transmission within the next week. Our goal on this build is 1000ft/lb. torque. We will be installing some very new products that are not yet available. We have been doing some extensive testing behind the scenes. We will also show you how to do some of this preventative maintenance to save yourself some dollars from the dealerships. SSP
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08-29-2016, 11:24 PM	#9
m5 guy Brigadier General 1692 Rep 3,200 Posts Drives: 2020 M5 Comp Join Date: Apr 2012 Location: Hawaii iTrader: (14)	Subscribed! __________________ 2020 F90 M5 Comp Oxford Green Metallic II-Aragon JOURNAL 2016 F10 M5 Space Gray-Black SOLD 2012 E70 X5M Monte Carlo Blue-Silverstone SOLD 2001 E46 M3 Oxford Green Metallic II-Cinnamon SOLD
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08-30-2016, 04:51 AM	#11
ur20v Captain 184 Rep 788 Posts Drives: F10 M5 Join Date: Apr 2016 Location: WA Australia iTrader: (0)	^^^LOTS of pictures!
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08-30-2016, 07:29 AM	#12
fhaze3 GLG-20 185 Rep 369 Posts Drives: 18 Ram 2500 Ltd,e30 M52 Track Join Date: Mar 2014 Location: North Georgia iTrader: (1)	It would be ok if this gets tagged with DCTPorn. Just sayin'.
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08-30-2016, 08:23 AM	#14
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08-30-2016, 02:53 PM	#15
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08-30-2016, 04:11 PM	#16
BPMSport 3387 Rep 7,541 Posts Drives: Harrop M3 / F10 M5 / F82 M4 Join Date: Apr 2008 Location: SoCal iTrader: (9) Garage List 2000 BMW M5 [0.00] 1990 BMW 735i Turbo [0.00] 2008 BMW M3 [7.50] 2015 BMW M3 [0.00] 2015 BMW M5 [0.00]	Looking forward to this Ram look for an email from me tomorrow w/ the file. Sounds like I need to raise max clutch torque again __________________ -----\| Like us on Facebook \| Instagram \|\| Tuning Information \| Remote Coding \|----- ----Visit us at www.BPMSport.com - Emotion. Driven. \| Toll Free: (888) 557-5133----
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08-31-2016, 10:35 AM	#18
allmotor_2000 F10 1/4 WR: 9.9s / 142.5mph 1/2 WR: 175.5mph 1087 Rep 1,968 Posts Drives: 2018 RS3, 991 Turbo Join Date: Jul 2014 Location: Westlake Village, CA iTrader: (0)	Step #1 - Get the car to Trinity Autosport and in the capable hands of Joe Yang. Tow company just picked her up... Attached Images
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08-31-2016, 11:38 AM	#19
TheHouseWon Colonel 644 Rep 2,039 Posts Drives: 2013 M5 Join Date: Nov 2015 Location: SoCal iTrader: (10)	Looks like the ultimate sleeper !
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08-31-2016, 07:44 PM	#21
luis_hp64 Enlisted Member 4 Rep 33 Posts Drives: '16 ///M5 & '10 Jeep Wrangler Join Date: May 2016 Location: Miami iTrader: (0)	Looking forward to see this!!!! Best of luck guys, and thanks for being the pioneers, putting the time, and effort in order to make it easier for all of us! __________________ ///M Powaaaa!!! IG: _luis_gomez_
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08-31-2016, 09:21 PM	#22
ur20v Captain 184 Rep 788 Posts Drives: F10 M5 Join Date: Apr 2016 Location: WA Australia iTrader: (0)	Ram, did your DTC give up, blow up, start slipping or is this just ready for the next push in the power war I think you are allready wining?
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