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Stoolz Stoolz is offline
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Default 11-23-2017, 12:24 PM

Quote:
Originally Posted by MHD
We'll try to adapt the F series launch.
But F series don't have a launch problem, it's E series Dct that NEEDS it.


2011 135i Dct coupe Alpine white n blacked out.
VTT DBB,Pure Inlet, JB4,GFB DV+,MHD,Fuel-it Platinum PI with Cm 5 - 50:50 Meth, E85, N20 tmap, Fuel It S2 lpfp, KB Boost A Spark, BMS IC /CP / IT / OCC, SG Boost Pipe, Quaife LSD, Federal RS-RR,M4 Flywheel, SSP R spec clutches, Kw V3 & Pro rolled guards, AR CL **, Bmw PE. Custom mi**ipe kitties. 1000wrms custom audio.
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houtan houtan is offline
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Default 11-23-2017, 12:51 PM

Quote:
Originally Posted by Stoolz
But F series don't have a launch problem, it's E series Dct that NEEDS it.
IMO. Dct launch control is fine. We just need boost by gear at minimum. Adjustable rpm would be nice.
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(#928)
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Stoolz Stoolz is offline
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Default 11-24-2017, 12:43 PM

Quote:
Originally Posted by houtan
IMO. Dct launch control is fine. We just need boost by gear at minimum. Adjustable rpm would be nice.
But we have boost by gear via jb4?
I know of nobody who can launch a dct other than sitting at the tree for 5 seconds after green trying to "catch" the dropping launch rpms.


2011 135i Dct coupe Alpine white n blacked out.
VTT DBB,Pure Inlet, JB4,GFB DV+,MHD,Fuel-it Platinum PI with Cm 5 - 50:50 Meth, E85, N20 tmap, Fuel It S2 lpfp, KB Boost A Spark, BMS IC /CP / IT / OCC, SG Boost Pipe, Quaife LSD, Federal RS-RR,M4 Flywheel, SSP R spec clutches, Kw V3 & Pro rolled guards, AR CL **, Bmw PE. Custom mi**ipe kitties. 1000wrms custom audio.
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(#929)
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Terry @ BMS's Avatar
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Default 11-24-2017, 01:46 PM

On our 135i DCT I normally limit boost in 1st gear to 10psi and launch off that.


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It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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ganque ganque is offline
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Default 11-24-2017, 06:40 PM

This guy was able to build boost on the regular DCT Launch Control on the N55 E Series cars.
https://www.instagram.com/p/BbsJYCug...re_evil_tuning

Is there any way we can get this as an option in MHD?
Also, what's the status on the LC RPM adjustment for DCT cars?
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(#931)
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Stoolz Stoolz is offline
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Default 11-28-2017, 01:21 PM

Quote:
Originally Posted by Terry @ BMS
On our 135i DCT I normally limit boost in 1st gear to 10psi and launch off that.
I don't think I've ever seen any slips posted Terry?
What kind of 60s we're you able to get?
I think you ran vtt on 335 then 135 then swapped out the turbo for the PS2 on that car right.
What kind of et and mph could you get? I remember the 11.4 from the 335 being pretty much the fastest et for an N55 for a long while. (Til F series at least).


2011 135i Dct coupe Alpine white n blacked out.
VTT DBB,Pure Inlet, JB4,GFB DV+,MHD,Fuel-it Platinum PI with Cm 5 - 50:50 Meth, E85, N20 tmap, Fuel It S2 lpfp, KB Boost A Spark, BMS IC /CP / IT / OCC, SG Boost Pipe, Quaife LSD, Federal RS-RR,M4 Flywheel, SSP R spec clutches, Kw V3 & Pro rolled guards, AR CL **, Bmw PE. Custom mi**ipe kitties. 1000wrms custom audio.

Last edited by Stoolz; 11-30-2017 at 12:26 PM..
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(#932)
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Default 12-03-2017, 02:32 PM

Quote:
Originally Posted by houtan
IMO. Dct launch control is fine. We just need boost by gear at minimum. Adjustable rpm would be nice.
The DME can cap the torque by gear and rpm. I'll add a flash option for that (of course it needs to be simpler than the 10x12 DME table).
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houtan houtan is offline
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Default 12-03-2017, 02:43 PM

Quote:
Originally Posted by MHD
The DME can cap the torque by gear and rpm. I'll add a flash option for that (of course it needs to be simpler than the 10x12 DME table).
Nice. Thanks. Will the torque by gear and RPM work in a commanded WGDC map?
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yaboipanda14 yaboipanda14 is offline
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Default chargepipe help - 12-25-2017, 07:48 PM

so im running a jb4 backend and i noticed when i was running map 1 or map 5 and i would do a pull my car would auto kick me back to map 4 could it be ..because i have stock chargepipe?
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(#935)
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Terry @ BMS's Avatar
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Default 12-25-2017, 08:19 PM

Check the "last safety" on the JB4 user adjustment page to see why. Over boost, lean run, etc. Then based on that address the issue.


Burger Motorsports
Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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yaboipanda14 yaboipanda14 is offline
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Default maybe a dumb question - 12-27-2017, 06:12 PM

so im running 93 fuel but i flashed with a backend flash for stock tune should i switch to pump flash?
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(#937)
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JacquesN55 JacquesN55 is offline
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Default 01-02-2018, 01:05 PM

Hi Terry
Do u still have the Single turbo PI flash for n55 e series


2011 135 n55 DCT RHD, MAMBA GTX3576R (5962) single turbo kit. Jb4 FBO. METH KIT WITH cm7 and cm4
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(#938)
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JacquesN55 JacquesN55 is offline
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Default 01-02-2018, 01:08 PM

Also with the hi load for DCT to not slipp


2011 135 n55 DCT RHD, MAMBA GTX3576R (5962) single turbo kit. Jb4 FBO. METH KIT WITH cm7 and cm4
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(#939)
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Terry @ BMS's Avatar
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Default 01-16-2018, 07:56 PM

We're just getting started. The JB4 offers a ton of tuning flexibility that is going to come in really handy especially so now that we can make flash change directly to compliment it. Running both when properly configured gives you tons of tuning options and the best of both worlds.


Burger Motorsports
Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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TDDaryl TDDaryl is offline
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Default 02-24-2018, 08:30 PM

What BEF would benefit most if I was switching from E40 to VP 101 full time?


2012 E82 FBO JB4 (Daily)
2008 335x 6466 ST (being rebuilt and upgraded)

Last edited by TDDaryl; 02-24-2018 at 08:32 PM.. Reason: Misspelling
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(#941)
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Terry @ BMS's Avatar
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Default 02-24-2018, 09:36 PM

Use the normal PUMP one.


Burger Motorsports
Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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(#942)
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Default 02-24-2018, 10:08 PM

Thanks. I appreciate the quick response.


2012 E82 FBO JB4 (Daily)
2008 335x 6466 ST (being rebuilt and upgraded)
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(#943)
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Memphis55 Memphis55 is offline
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Default 2011 E90/JB4/MHD logs - 03-20-2018, 08:25 AM

Could someone review these logs when possible.
Attached Files
File Type: csv 2018-03-16 08_42_40.csv (12.7 KB, 28 views)
File Type: csv 2018-03-16 08_44_05.csv (8.4 KB, 23 views)
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(#944)
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Terry @ BMS's Avatar
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Default 03-20-2018, 08:27 AM

Raise PID gain to 25. But beyond that if you need tuning help post the logs and car details to the support forum.


Burger Motorsports
Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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(#945)
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I M inluv340 I M inluv340 is offline
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Default 03-31-2018, 07:11 AM

Quote:
Originally Posted by keyap
There's been some talk on here of N55 E misfires and errors in the COBB BEFs so I thought it was worth posting how I solved mine as it may support the MHD development.

I do use my own BEF so there are quite a few differences to the BMS and FuelIt versions and I also think, where possible, this means the errors in the COBB OTS maps were corrected. What I've listed below though is the parameter which I think impacts misfires:-

What I found was that with without a BEF the HPFP values under full load show considerably higher than with a high load BEF. This is from memory, so these figures may not be 100% accurate but, without a BEF and the JB targetting say 20 psi the HPFP will be at 14 whereas, with a high load BEF and no other changes the HPFP drops to 11.

The 11 is right on the limit of what works OK so as soon as anything impact this, for example, a loss of traction, the value can drop sub 11 inducing misfires.

By reducing the Load Ceiling Main in the flash and thus reducing the amount of boost seen by the DME, the HPFP increases and can accommodate more fluctuations.

Form memory, the BMS high load flash uses a Load Ceiling Main of 180 and the FuelIt 200. Dropping to 150 increases the HPFP value under load to 12 maybe even 13 and the misfires are gone. For me this even allows traction control to intervene (which the high load BEFs really seemed to not like) and there are no problems.

Lowering the Load Ceiling Main does have other knock on effects though, so for example, fuelling in the BEF needs to be adjusted and for PI I needed to change the JB4 Fuel Bias otherwise trims would be way out.

There's also other things to consider. For DCT guys, DME boost impact DCT plate pressure. Form what I know, DCT plate pressure caps out at around a DME boost figure of 21psi. 200 on the load ceiling main, assuming other tables to do reduce boost, results in this. I think 180 is around 20 and the 150 I quoted above around 14. These are only approx but, what it does mean is that DCT guys may experience slip with a lower Load Ceiling Main value.

150 for me works OK but it does vary car to car and I know for others 150 at high boost results in slip. I am however not running the stock DCT flash so that may also be helping.

There's also something else at play. For example, if I run 140, at around 4 to 5K revs going WOT, the car will quite abruptly back off the power. Exactly the same as if you lift your foot quickly off the accelerator. There are no codes though. In summer, 150 at 23 psi solved this but not a 25psi. 155 at 25 psi solved it, but now the weather's colder and the car produces more power, I'm getting it at 155. Moving to 160 has resolved it but, for me, this is borderline where the misfires start.

There's also been some talk of back pressure, which may be a cause however, I don't think it's ** related. Yes, a c'less ** impacts positively but there was no change in misfires between the one I'm now running and stock.

With the setup as per my signature and a load ceiling main of 150 summer and 160 now the weather's getting colder, I can happily run 25 or 26 psi without issues - this is with 40 to 50% E, whereas the Fuelit and BMS BEFs can result in misfires if the boost target is set to >20psi. As I put at the start, this is based on my own BEF however, I have tried using the reduced Load Ceiling Main value on the BMS and FuelIt maps and it does seem to help.

What would be great, especially for DCT owners, would be a way to increase DME boost, independently control the HPFP value and independently control the DCT clutch pressure. Is that possible?

Hope the above helps.

What DCT flash are you running to help with missfires at higher boost?
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(#946)
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keyap keyap is offline
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Default 04-02-2018, 03:22 PM

Quote:
What DCT flash are you running to help with missfires at higher boost?
Sorry for the late reply - am away on holiday ATM so not much time to look here.

Do you mean DCT flash or BEF? If you're asking which DCT flash, I'm back to the stock 135i version after finding others yielded little to no benefit - here's some info on options available:

http://www.n54tech.com/forums/showthread.php?p=478653

For the BEF, I'm still running my own. TBH though it's not ideal and a bit too close to the edge for my liking when at 25psi. ~20psi is fine but, if everything is not dialled in exactly then I have issues at anything over 21/22psi.

Things have however progressed since I posted what you quoted above, and it looks like the OEM flywheel is the problem. Swopping out with the M4 version seems to solve the high boost misfires. This has been proven by a few early adopters on here and I'm fairly sure Terry recently posted something to support this and mentioned adding to their development car.


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 | MFactory Pro Helical LSD (75% Bias Ratio) | eDiff Disabled Via Coding | MFactory Solid Diff Bushes | Diff Lockdown Bracket | Custom 98G0B BEF | NGK 5992s (0.020")


DD Map 7 at 20psi. Map 6 at 25psi for 'kill mode'
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(#947)
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Phataxe Phataxe is offline
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Default PI bef maps? - 04-13-2018, 11:54 AM

Are there any port injection default Maps available for the n55 like a base to start with


'14 435I RWD MHD/JB4 "Twisted Tuning Custom Tune" | GFB DV+ | Rev9 FMIC | VRSF CP | BMS Intake | HP Down pipe | Borla ATAK Exhaust | Stage 2 LPFP | BMP PI BMS PI controller | EWG Harness Upgrade | e85 | NGK 5992 Plugs "0.020"
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(#948)
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Default 04-13-2018, 12:00 PM

Sorry I posted this in the wrong area could one of the admins move this to the n55 ewg area


'14 435I RWD MHD/JB4 "Twisted Tuning Custom Tune" | GFB DV+ | Rev9 FMIC | VRSF CP | BMS Intake | HP Down pipe | Borla ATAK Exhaust | Stage 2 LPFP | BMP PI BMS PI controller | EWG Harness Upgrade | e85 | NGK 5992 Plugs "0.020"
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(#949)
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fisc0h fisc0h is offline
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Default PUMP_THR - 04-20-2018, 11:13 PM

Hi Terry,

Anyway we could get a THR version of the PUMP BEF?


2011 335i x-drive MSport: MHD PUMP_BEF + JB4 ISO 5.16 / Pure Stage 2 / Stage 2 LPFP (bucketless) / N20 TMAP / BMS Intake / ER CP / VRSF ** / VRSF 7" FMIC
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lazer lazer is offline
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Default 04-25-2018, 07:28 AM

Do you will add the new oil pressure feature?


135i 2012 6speeds n55/FBO/ps1/inlet/stg2 lpfp/bms meth
Pump flash
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