11-18-2020, 09:00 AM | #1 |
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MHD Tune advise
Hi there.
My 1M is completely stock besides the necessary aluminum charge pipe mod. I only have 23K KMs on the clock. I already have the MHD wireless adapter and was planning on some tuning to increase performance. Not looking for all out tuning as there are some other mods pending (bigger intercooler, downpipes) in order to be able to extract the full potential of the tuning. What should be the order of mods I should follow and stages of tuning packages to install in order to gradually increase performance? Appreciate your advise. |
11-18-2020, 09:07 AM | #2 |
Commander ;)
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As someone who has run through all MHD stages on N54...
Even stage 1 is a big difference from stock and would be recommended without the IC and DPs. I would just install the IC and DPs in one shot and go straight to 2+. One of the great things about MHD is you don't lose everyday drivability, no matter what stage you choose. |
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11-18-2020, 11:06 AM | #3 |
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Drives: e82 1M, f87 M2cs
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You can experiment with a lot of settings. I find the "linear throttle" setting to be very non linear and now leave it off for better drivability. I am using a custom tune, which also improved the part-throttle drivability significantly compared to the OTS maps.
An Intercooler will make the biggest difference in power gains since high intake temps will result in lower load targets after 1 pull on the stock intercooler. The stock IC is quickly overwhelmed with any increase in boost, including stage 1.
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1M track toy mods: BMS chargepipe, BMS OCC, ADE FMIC, ADE motor mounts, MadDad/Lightweight Ti exhaust, ADE custom oil thermostat/cooler, custom MHD tune, F10 550i clutch, Ohlins R+T, Vorschlag camber plates, M3 'vert FSB with Turner endlinks, Stoptech Trophy BBK.
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11-18-2020, 01:12 PM | #4 |
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Thank you both for your opinions. That is exactly what I was looking for: First hand experience opinions and suggestions.
Will do an Intercooler next. Ive been doing a lot of reading regarding the best fit Intercooler without having to cut and modify for the install. Still undecided. |
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11-18-2020, 01:50 PM | #5 |
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Whatever else you decide to do, I highly encourage starting your MHD experience by purchasing the Monitoring Module first.
I know everybody wants to go straight to the fun stuff, but it's better to log and be sure all is well, then add parts or a tune, then monitor some more to be sure all is well. From the App Store: ═══ Monitor module ═══ - Extensive logging values list, up to 30 values at the same time. - Save logging session to .CSV files - Integrated csv log viewer - Up to 8 configurable gauges - Automatic or manual log session start.
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1and1
135i - E82.N54 2009 BSM - MHD / xHP / DCI, PR CP & 7.5" Race IC / N55 mid & Borla . . WL RSFI, Koni, Eibach & Dinan CP's, M3 CA's / EBC Red's & Firehawk 500's X1 - E84.N20 2013 MGM - JB4 - The Wife's, now with new turbo & ewg |
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11-18-2020, 07:31 PM | #6 |
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There are FB groups for MHD and N54 tuning in general with a lot more traffic, but I am happy to help here if you run into any trouble.
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1M track toy mods: BMS chargepipe, BMS OCC, ADE FMIC, ADE motor mounts, MadDad/Lightweight Ti exhaust, ADE custom oil thermostat/cooler, custom MHD tune, F10 550i clutch, Ohlins R+T, Vorschlag camber plates, M3 'vert FSB with Turner endlinks, Stoptech Trophy BBK.
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11-19-2020, 09:59 PM | #7 |
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Thanks a lot to all of you. Appreciate all of the above mentioned suggestions
I am pretty familiar with HPTuners but MHD is completely new to me. I am a little scared to do a PCM flash with a wireless connection during such a long time. I guess I will start by doing some logging and monitoring first like 1and1 suggested. Just to get the feel of the system. For now I Signed in to MHD and am just about to start purchasing licenses. Do you have to do a stock calibration backup before trying to flash any tunes into the PCM? |
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11-20-2020, 12:48 PM | #8 |
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Drives: e82 1M, f87 M2cs
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MHD automatically saves a stock calibration and will revert you to that if you ever decide to uninstall. If you flash stage 0, the car will run stock parameters.
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1M track toy mods: BMS chargepipe, BMS OCC, ADE FMIC, ADE motor mounts, MadDad/Lightweight Ti exhaust, ADE custom oil thermostat/cooler, custom MHD tune, F10 550i clutch, Ohlins R+T, Vorschlag camber plates, M3 'vert FSB with Turner endlinks, Stoptech Trophy BBK.
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12-27-2020, 04:50 PM | #9 | |
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Quote:
1. BMS charge pipe w/Tial BOV 2. YCW carbon fiber driveshaft 3. MadDad mid-pipe 4. 128i performance shift lever 5. OEM valve cover, HPFP, and injectors 6. BMS low-side catch can 7. Wagner intercooler 8. MHD stage 1+ I will probably do inlets, and cp-e cat-less downpipes after this to move up to stage 2/2+. I think a custom tune might be a good option in this arena, also; but I need to drive better first |
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09-27-2021, 09:31 PM | #10 |
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More questions have come up
Right in the middle of my downpipe and FMIC install and about to go with the MHD tune. Thinking of stage2. Do I need to change my spark plugs for colder ones or will I be OK with the OEM ones? And, will I get a SES light after the removal of the downpipe CATS? I do have the O2 sensors in their respective places. Went with the VRSF downpipes. Thans for your input |
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09-28-2021, 06:31 AM | #11 | |
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Quote:
2) Do not check the OEM Catted Downpipe checkbox then you won't get emission light. 3) Check cold start delete checkbox to quiet down start up plus it's useless since you have no catalytic converter. 4) I don't know how good the fuel is in your country, but if the octane rating is not reliable I'd start with one grade lower to be safe. Do logs and check for Ign timing corrections. Move up one octane rating if safe to do so.
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|2012 AW 1M Coupe| |MHD Stg 2| |Ohlins R&T| |BBS RI-D| |VRSF CP| |VRSF 7" HD| |Tial BOV| |Akrapovic Full Evolution Exhaust System + DP| |AP Racing Radical II| |Raceseng Slammer| |Pedalhaus|
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