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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > MHD N55 E-Series - general discussion



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      08-13-2019, 11:48 PM   #8053
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Quote:
Originally Posted by maddmatth View Post
Quote:
Originally Posted by Sevelyth View Post
I have dealt with over boosting on my car for over a year now and it's honestly so frustrating. I messaged MHD and they had twisted send me over a revised stage 2+ tune that was intended to fix my over boosting and in the email, they said the BMS intake I have is crap and I should uninstall it which I did.
I don't know why you're trying to use a tune to fix a problem with your car? Obviously something is wrong with the car that needs to be fixed.
The OTS maps are optimized to work for the vast majority of cars in a majority of conditions, but not every single one. Sometimes there's minor differences that may require slight modifications to the map to run exactly as intended. In these situations there isn't necessarily something physical that's "broken" that can be "fixed".
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      08-14-2019, 01:18 AM   #8054
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Quote:
Originally Posted by Sevelyth View Post
I have dealt with over boosting on my car for over a year now and it's honestly so frustrating. I messaged MHD and they had twisted send me over a revised stage 2+ tune that was intended to fix my over boosting and in the email, they said the BMS intake I have is crap and I should uninstall it which I did.

Thanks
it's not unusual for OTS maps to get overboost in higher gears, though it shouldnt be that high as yours. Concentrate in logging 3.gear first.
Looking at your third gear pull , you are getting more corrections the higher the rpm, should be vise-vesa, in this case I would start with adding more oct. In your fuel, or use better fuel, and let car adopt.
If issue not solved, try going back to map zero and log from there, if not already done.
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      08-14-2019, 12:51 PM   #8055
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Hey guys. My girl just got mhd flash on her n55 after she had the dme flashed. She put mhd burble on aggressive and it doesn’t make a sound. She also put the option to quiet her car on startup. Has anyone else experienced this issue and found any resolutions? Thanks
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      08-14-2019, 03:30 PM   #8056
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Quote:
Originally Posted by jyjimenez3 View Post
Hey guys. My girl just got mhd flash on her n55 after she had the dme flashed. She put mhd burble on aggressive and it doesn’t make a sound. She also put the option to quiet her car on startup. Has anyone else experienced this issue and found any resolutions? Thanks
Did it flash successfully? Maybe try flashing it again? Did you turn the car off, wait a few seconds and start back up?
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      08-14-2019, 03:56 PM   #8057
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Quote:
Originally Posted by jyjimenez3 View Post
Hey guys. My girl just got mhd flash on her n55 after she had the dme flashed. She put mhd burble on aggressive and it doesn’t make a sound. She also put the option to quiet her car on startup. Has anyone else experienced this issue and found any resolutions? Thanks
Did you set the duration for "base", "sport", or both? Mine didn't burble at all with just the sport setting so I had to set base too
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      08-14-2019, 04:06 PM   #8058
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Quote:
Originally Posted by jyjimenez3 View Post
Hey guys. My girl just got mhd flash on her n55 after she had the dme flashed. She put mhd burble on aggressive and it doesn’t make a sound. She also put the option to quiet her car on startup. Has anyone else experienced this issue and found any resolutions? Thanks

Look for YOURVIN_flashoptions.xml under MHD N55 directory and post it,

possibly ExhaustBurbles_MinRPM is set too high, set it to 650, and you should hear burbles all the way to halt .

My settings, stock exhaust no DP, sounds great, you can try but no guarantee every car is different;

<startupRoarLvl>0</startupRoarLvl>
<ExhaustBurbles_On>true</ExhaustBurbles_On>
<ExhaustBurbles_Agressiveness>1</ExhaustBurbles_Agressiveness>
<ExhaustBurbles_Duration>7</ExhaustBurbles_Duration>
<ExhaustBurbles_DurationSport>10</ExhaustBurbles_DurationSport>
<ExhaustBurbles_MinRPM>400</ExhaustBurbles_MinRPM>
<ExhaustBurbles_MinSpeed>0</ExhaustBurbles_MinSpeed>
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      08-14-2019, 06:44 PM   #8059
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Hey guys my boost seems to be overshooting then dropping too low then up and down again. is this a possible MHD thing? im running stage 1 on 92 oct fuel.

I have already checked for boost leaks replaced my boost solenoid and vac lines.

also today i checked vacuum down at the wastegate and its 8inhg at idle.

i also checked to see if my wastegate is moving in and out properly with a vac pump and the wastegate arm doesnt move untill 4inhg then it maxes out at 8 inhg.

does any of this sound off?? or should i flash back to stock map?

https://datazap.me/u/erzenble/log-af....89&tmax=98.84
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      08-14-2019, 08:33 PM   #8060
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Quote:
Originally Posted by TeinBMW View Post
Did it flash successfully? Maybe try flashing it again? Did you turn the car off, wait a few seconds and start back up?
It flashed successfully and the quiet on start up is working. It’s been like this for three days. I heard other people had to wait a couple days for it to work or something but still nothing yet. She’s going to take off burble and then reflash it and see.
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      08-16-2019, 12:03 AM   #8061
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Could someone please take a look at this log?

https://datazap.me/u/slowtrooper/superknock?log=0&data=4-13

Was running E50 but was getting misfires. Regapped to .020 and added 91 and remapped to E30 (even though HPFP didn't drop below 1650). Running NGK one step colder.

Now I'm getting a super knock and cylinder 4 shutoff consistently. Was thinking of swapping plugs to see if the code follows.

Bosch ignition coils with about 20k on them. Plugs have about 7500 on them.

Thanks!
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      08-16-2019, 01:26 AM   #8062
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Quote:
Originally Posted by amexile View Post
Could someone please take a look at this log?

https://datazap.me/u/slowtrooper/superknock?log=0&data=4-13

Was running E50 but was getting misfires. Regapped to .020 and added 91 and remapped to E30 (even though HPFP didn't drop below 1650). Running NGK one step colder.

Now I'm getting a super knock and cylinder 4 shutoff consistently. Was thinking of swapping plugs to see if the code follows.

Bosch ignition coils with about 20k on them. Plugs have about 7500 on them.

Thanks!
So tried swapping coils and still got cylinder 4. Swapped them back, swapped the plugs then got cylinder 3 instead. Leaning towards a bad plug.
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      08-16-2019, 07:14 PM   #8063
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Quote:
Originally Posted by lucasmiller2015 View Post
Did you set the duration for "base", "sport", or both? Mine didn't burble at all with just the sport setting so I had to set base too
Ah. Was wondering if that would affect it. Do you have the same setting burble for base and sport? Or does base just have to be on for it to work in sport too?
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      08-16-2019, 07:23 PM   #8064
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Quote:
Originally Posted by Keyless77 View Post
Look for YOURVIN_flashoptions.xml under MHD N55 directory and post it,

possibly ExhaustBurbles_MinRPM is set too high, set it to 650, and you should hear burbles all the way to halt .

My settings, stock exhaust no DP, sounds great, you can try but no guarantee every car is different;

<startupRoarLvl>0</startupRoarLvl>
<ExhaustBurbles_On>true</ExhaustBurbles_On>
<ExhaustBurbles_Agressiveness>1</ExhaustBurbles_Agressiveness>
<ExhaustBurbles_Duration>7</ExhaustBurbles_Duration>
<ExhaustBurbles_DurationSport>10</ExhaustBurbles_DurationSport>
<ExhaustBurbles_MinRPM>400</ExhaustBurbles_MinRPM>
<ExhaustBurbles_MinSpeed>0</ExhaustBurbles_MinSpeed>
The rpm is at 0. Only turned on in sport tho. Imma try turning it on for base and sport and see from there. Thanks.
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      08-16-2019, 07:36 PM   #8065
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Quote:
Originally Posted by jyjimenez3 View Post
Quote:
Originally Posted by lucasmiller2015 View Post
Did you set the duration for "base", "sport", or both? Mine didn't burble at all with just the sport setting so I had to set base too
Ah. Was wondering if that would affect it. Do you have the same setting burble for base and sport? Or does base just have to be on for it to work in sport too?
Yep, I have both set to the max duration. I think the sport setting might just be for the sport button that the 135i has (different from sliding the shifter over to S/M).
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      08-16-2019, 08:10 PM   #8066
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Quote:
Originally Posted by lucasmiller2015 View Post
Yep, I have both set to the max duration. I think the sport setting might just be for the sport button that the 135i has (different from sliding the shifter over to S/M).
Thanks for the help man. Will definitely look into it!
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      08-16-2019, 11:48 PM   #8067
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jyjimenez3 Is there car an automatic and is she just trying to get burble from free-revving? A lot of user like me who have automatic don't get any burble while revving in neutral or park. I only get some when the car is actually rolling.
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      08-17-2019, 01:36 PM   #8068
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Quote:
Originally Posted by TheGoodTheBadTheUgly View Post
jyjimenez3 Is there car an automatic and is she just trying to get burble from free-revving? A lot of user like me who have automatic don't get any burble while revving in neutral or park. I only get some when the car is actually rolling.
Im auto and i get burbles in Park. My MHD settings are 0 mph and 0 min RPM
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      08-17-2019, 10:55 PM   #8069
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Quote:
Originally Posted by Sevelyth View Post
I have dealt with over boosting on my car for over a year now and it's honestly so frustrating. I messaged MHD and they had twisted send me over a revised stage 2+ tune that was intended to fix my over boosting and in the email, they said the BMS intake I have is crap and I should uninstall it which I did.

I've taken logs of my car religiously and let it adapt and the tune he sent over fixed the overboost in 2nd gear but not 3rd or 4th. It's the worst in 4th as it just hits a ceiling of 23.1 PSI and holds it while only giving me about 40% throttle.
Here is a log of 2nd gear and 4th gear so you can see the STUPID amount of overboosting my car does in 4th
https://datazap.me/u/mbowie100/stage...og=0&data=3-13
Here is a log of 3rd gear 3000RPM to redline log
https://datazap.me/u/mbowie100/stage...og=0&data=3-13
Notice in 3rd less overboosting than in fourth but I still get throttle closures.
Twisted hasn't answered my email with logs for 4 days and I'm afraid they just don't want to deal with me . Does anyone have advice?
Thanks
There’s something not right about the car than the tune. Check the pressure converters or vacuum line setup.
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      08-20-2019, 08:34 AM   #8070
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Quote:
Originally Posted by TheGoodTheBadTheUgly View Post
jyjimenez3 Is there car an automatic and is she just trying to get burble from free-revving? A lot of user like me who have automatic don't get any burble while revving in neutral or park. I only get some when the car is actually rolling.
I have automatic too and it backfires when I am in park. Mine also backfires a lotttttt and I can control it with the gas pedal. She gets literally one back fire and that's it. Maybe its the N54 vs. N55 ?
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      08-20-2019, 08:37 AM   #8071
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Quote:
Originally Posted by xxMike61 View Post
Im auto and i get burbles in Park. My MHD settings are 0 mph and 0 min RPM
you have an n55?
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      08-23-2019, 09:10 AM   #8072
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Quote:
Originally Posted by Jdub679 View Post
There has always been a shift bog between 1st to 2nd when I had the JB4. Seemed like almost everyone with a manual had it. I guess I just assumed it was going to be there again after flashing. I'll be honest though, I haven't driven the MHD flash enough to even know if it's still there. I'll drive more and try to get some logs for you guys too. Thanks.
Hey folks,
was wondering about MT shift bog with the N55 and possibly solving this with MHD. Haven't driven a stock N54 so I can't tell what it really feels like but mine for sure has some hesitation before it pulls again after a shift regardless of engine speed before/after shift with stock software?
Has this been absolutely verified that the TrqLim is not active after shifts with MT6 in N55? Couldn't find anything recent about this topic around this or other threads.
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      08-23-2019, 09:56 AM   #8073
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Quote:
Originally Posted by renizer View Post
Hey folks,
was wondering about MT shift bog with the N55 and possibly solving this with MHD. Haven't driven a stock N54 so I can't tell what it really feels like but mine for sure has some hesitation before it pulls again after a shift regardless of engine speed before/after shift with stock software?
Has this been absolutely verified that the TrqLim is not active after shifts with MT6 in N55? Couldn't find anything recent about this topic around this or other threads.
MHD solved the 2048 shift bog on the N54. It required re-writing DME logic.

The fix hasn't been carried over to the N55 DME, unfortunately. You can log the torque limiter pids to see if this is the limiter you are experiencing... There could be plenty of other things happening post shift so can't really assume its any kind of torque limiter without a log showing the pids active.
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