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keyap keyap is offline
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Default 08-23-2016, 01:58 PM

Quote:
Upgraded clutch packs

Expensive (for now), but they do exist.
Do they improve this situation given the cause is applied pressure? I read a few threads a while ago where upgraded packs did not stop the slip albeit they were referring to the M DCT.


UK 2011 - E82- 135i - N55 - DCT

JB4 | BMS OCC | N20 TMap | Fuel-It! PI | AIC6 PI Controller | Fuel-It! Fuel Lines | Fuel-It! Stage 2 LPFP | Continental In-line E Sensor | ER Charge Pipe | Pure Stage 2 Turbo | Pure High Flow Inlet | GFB DV+ | Richter C'less D/Pipe | Berk Race Full Exhaust | MFactory Pro Helical LSD (75% Bias Ratio) | eDiff Disabled Via Coding | MFactory Solid Diff Bushes | Diff Lockdown Bracket | Custom 98G0B BEF | NGK 5992s | KW3 Coilovers
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007335i 007335i is offline
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Default 08-23-2016, 02:00 PM

Ok for those who bought the "Is" what packages did you get?
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bnk bnk is offline
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Default 08-24-2016, 03:30 AM

What is the torque record for a DCT?
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keyap keyap is offline
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Default 08-25-2016, 01:38 PM

Quote:
Ok for those who bought the "Is" what packages did you get?
I currently running 8606074, which is the 'IS' flash, but am having issues with the torque limiter. Others have seen some success with 8606092 which I'm still to try.

8606074 gives me a few more PSI before slip but I'm still needing to run increased BEF load tables to fully alleviate the problem.

Quote:
What is the torque record for a DCT?
At ~25psi I would guess I'm over 700nM although the car runs at 20psi for most of the time.


UK 2011 - E82- 135i - N55 - DCT

JB4 | BMS OCC | N20 TMap | Fuel-It! PI | AIC6 PI Controller | Fuel-It! Fuel Lines | Fuel-It! Stage 2 LPFP | Continental In-line E Sensor | ER Charge Pipe | Pure Stage 2 Turbo | Pure High Flow Inlet | GFB DV+ | Richter C'less D/Pipe | Berk Race Full Exhaust | MFactory Pro Helical LSD (75% Bias Ratio) | eDiff Disabled Via Coding | MFactory Solid Diff Bushes | Diff Lockdown Bracket | Custom 98G0B BEF | NGK 5992s | KW3 Coilovers
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FL335 FL335 is offline
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Default 08-26-2016, 05:26 AM

Quote:
Originally Posted by keyap
I currently running 8606074, which is the 'IS' flash, but am having issues with the torque limiter. Others have seen some success with 8606092 which I'm still to try.

8606074 gives me a few more PSI before slip but I'm still needing to run increased BEF load tables to fully alleviate the problem.



At ~25psi I would guess I'm over 700nM although the car runs at 20psi for most of the time.
I'm running 8606072 (135is) flash with zero slippage at 550wtq (745nm) and that's on stock turbos. I know of other guys on hybrids with bigger #'s that say the tranny stills hold just fine. But realistically a upgraded DCT clutch should be part of the plan if upgrading turbos.


'13 LMB 335is DCT | MHD/BQ Tuning |
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keyap keyap is offline
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Default 08-26-2016, 06:50 AM

Quote:
I'm running 8606072 (135is) flash with zero slippage at 550wtq (745nm) and that's on stock turbos. I know of other guys on hybrids with bigger #'s that say the tranny stills hold just fine. But realistically a upgraded DCT clutch should be part of the plan if upgrading turbos.
What load and level of boost is seen by the DME? Would love to have a look at a log if you have one?

Thanks


UK 2011 - E82- 135i - N55 - DCT

JB4 | BMS OCC | N20 TMap | Fuel-It! PI | AIC6 PI Controller | Fuel-It! Fuel Lines | Fuel-It! Stage 2 LPFP | Continental In-line E Sensor | ER Charge Pipe | Pure Stage 2 Turbo | Pure High Flow Inlet | GFB DV+ | Richter C'less D/Pipe | Berk Race Full Exhaust | MFactory Pro Helical LSD (75% Bias Ratio) | eDiff Disabled Via Coding | MFactory Solid Diff Bushes | Diff Lockdown Bracket | Custom 98G0B BEF | NGK 5992s | KW3 Coilovers
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Default 08-26-2016, 11:45 AM

Quote:
Originally Posted by keyap
What load and level of boost is seen by the DME? Would love to have a look at a log if you have one?

Thanks
I'll PM you a bit later with a link.


'13 LMB 335is DCT | MHD/BQ Tuning |
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(#33)
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cpwinch cpwinch is offline
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Default 08-29-2016, 10:01 AM

Quote:
Originally Posted by MFactory
MT has it's place for die-hards, but drive (and appreciate) a DCT for long enough on both street and track, and you will start wondering why you even bothered with a 3rd pedal.
Couldn't agree more. Especially on the racetrack. DCT is a ton of fun. I had a 6mt e90 m3 and I absolutely loved it, but after driving a DCT E92 M3 i realized that they are equally fun and the DCT is much much faster. Once we got our 991 GT3 I fell in love with the PDK in that car. Although it is a ton of fun to have a clutch, its even more fun to put down solid lap times without having to think about changing gears before every turn. For the people who love driving MT, there are thousands of older cars in the world that could satisfy the need for a manual. For instance, I am ordering a F82 M4 next month and it will be DCT. We have a 991 GT3 and it is PDk. In order to make up for the lack of a MT car we want to purchase a 964 carrera or maybe an E36 m3. Manuals are fun and amazing but most modern cars are way better performing in their DCT configuration. If you love the connected feeling of a car and having a MT, then you should consider getting a classic car such as e36, e46, 964, 993, s13, r32 etc...
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007335i 007335i is offline
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Default 08-31-2016, 02:54 PM

Is there any bog problems with DCT?
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bigdnno98 bigdnno98 is offline
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Default 09-01-2016, 12:35 PM

Quote:
Originally Posted by 007335i
Is there any bog problems with DCT?
Like what? Shift bog? Only if you lose traction. The DCT cars are very sensitive to tire slip. The DME will aggressively pull boost and timing if there is any tire slip. I have drag radials and turn traction control completely off when I drag race and I have 0 bog issues. If you're talking about on the launch then yes and no. It's all about traction. Mine bogs some when using the 3500 LC and drag radials. That's better than tire spin though.


2011 335is DCT, FBO
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007335i 007335i is offline
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Default 09-01-2016, 12:57 PM

Quote:
Originally Posted by bigdnno98
Like what? Shift bog? Only if you lose traction. The DCT cars are very sensitive to tire slip. The DME will aggressively pull boost and timing if there is any tire slip. I have drag radials and turn traction control completely off when I drag race and I have 0 bog issues. If you're talking about on the launch then yes and no. It's all about traction. Mine bogs some when using the 3500 LC and drag radials. That's better than tire spin though.
Sorry I was referring to shift big. What 1/4 mile times are you running?
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Default 09-01-2016, 03:19 PM

Quote:
Originally Posted by 007335i
Sorry I was referring to shift big. What 1/4 mile times are you running?
Just speaking for me and my setup there's no such thing as shift bog. I don't think my car couldn't shift any faster or harder than it does.

As far as 1/4 mile times, I do high 11's on street tires, no meth, no inlets, and no launch control. I roll off the line to a sh*tty best 60 ft of 2.15. If I get that into the AT/MT range of 1.7-1.8 it's an easy mid 11's car. I've since added inlets/outlets and just waiting for it to cool off before I try again.


'13 LMB 335is DCT | MHD/BQ Tuning |
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007335i 007335i is offline
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Default 09-01-2016, 04:17 PM

Quote:
Originally Posted by FL335
Just speaking for me and my setup there's no such thing as shift bog. I don't think my car couldn't shift any faster or harder than it does.

As far as 1/4 mile times, I do high 11's on street tires, no meth, no inlets, and no launch control. I roll off the line to a sh*tty best 60 ft of 2.15. If I get that into the AT/MT range of 1.7-1.8 it's an easy mid 11's car. I've since added inlets/outlets and just waiting for it to cool off before I try again.
How do the diffs hold up to luanches? And keep me posted on the 1/4 mile times
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(#39)
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bnk bnk is offline
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Default 09-02-2016, 05:23 AM

All DCT diffs are welded so LSD is quite an investment.
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MrDangles MrDangles is offline
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Default 09-02-2016, 06:36 AM

Mfactory post has me confused. Is the DCT trans different than the automatic transmission offered?
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_ink _ink is offline
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Default 09-02-2016, 06:39 AM

Quote:
Originally Posted by keyap
Do they improve this situation given the cause is applied pressure? I read a few threads a while ago where upgraded packs did not stop the slip albeit they were referring to the M DCT.
I'm an N54 DCT, with upgraded Dodson clutch packs - no slip, on ZUB# 8606090

392KW's // +800nm // 25PSI





Last edited by _ink; 09-02-2016 at 06:50 AM..
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