05-22-2024, 10:20 AM | #771 | |
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only mods are Cat/opf delete and tu pump . these are all mhd maps froma few years ago running e40 mix.
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M140i DP , OPF delete , MHD stg2 93oct , xhp stg3
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DieselDuck109.50 IMS-340C454.50 |
05-22-2024, 10:48 AM | #772 | |
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edit: I guess Thomas confirms it
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M140i - MHD Stage 2+ E40 - XHP Stage 3 - Catless DP - TU HPFP - MP LSD - MP Exhaust - Endless ME20 brakepads w/ Castrol SRF fluid - Bilstein B12 - Millway solid rear subframe bushings - Goodyear Eagle F1 SuperSport
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05-22-2024, 10:51 AM | #773 |
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That highest HP dyno map hits peak HP @5200-5500 RPM I guess you shifted @6000-6200 RPM for maximum acceleration ?
But to be fair I also saw a couple of M240is struggling to break into the sevens running E40 map. Anyway the M140is on E40 map is crazy quick, here are some 100-200 for some powerful cars:
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2018 340i 8AT RWD - M Sport - Catless MPPSK - Stock Turbo - TU HPFP
Tunes: Self Tuned via MHD - Fuel: E18/92RON/87OCT https://datazap.me/u/ims/e20max?log=0&data=4-19-29 |
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05-22-2024, 11:03 AM | #774 | |
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I never left I always keep an eye on you guys
Maybe you should try shifting 4th to fifth and fifth to sixth @6000-6200 RPM and I guess you are starting the 100-200 in 4th gear ? Quote:
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2018 340i 8AT RWD - M Sport - Catless MPPSK - Stock Turbo - TU HPFP
Tunes: Self Tuned via MHD - Fuel: E18/92RON/87OCT https://datazap.me/u/ims/e20max?log=0&data=4-19-29 |
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05-22-2024, 11:20 AM | #775 | |
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Here you see data of one of the logs I pulled of my car some while ago which kind of confirms that the mid-range is especially strong.
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M140i - MHD Stage 2+ E40 - XHP Stage 3 - Catless DP - TU HPFP - MP LSD - MP Exhaust - Endless ME20 brakepads w/ Castrol SRF fluid - Bilstein B12 - Millway solid rear subframe bushings - Goodyear Eagle F1 SuperSport
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05-22-2024, 11:30 AM | #776 | |
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I agree and if your HP curve is like the dyno posted above and your HP peaking @5250-5500 RPM you'd be better off shifting @6000-6200 so that the RPM drops to 4800 RPM for the next gear this way you would stay in the sweet spot of the HP for maximum acceleration.
Quote:
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2018 340i 8AT RWD - M Sport - Catless MPPSK - Stock Turbo - TU HPFP
Tunes: Self Tuned via MHD - Fuel: E18/92RON/87OCT https://datazap.me/u/ims/e20max?log=0&data=4-19-29 |
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06-11-2024, 03:42 AM | #778 |
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2018 340i 8AT RWD - M Sport - Catless MPPSK - Stock Turbo - TU HPFP
Tunes: Self Tuned via MHD - Fuel: E18/92RON/87OCT https://datazap.me/u/ims/e20max?log=0&data=4-19-29 |
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06-11-2024, 12:41 PM | #780 |
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That kind of explains your poor performance…. Blindly tuning without logging and analysing is a hit or miss. (And quite frequently a miss)
https://www.bimmerpost.com/forums/sh...php?p=25202060
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06-11-2024, 12:46 PM | #781 |
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MHD mobile datalog is an app to open the log you need the log itself, do the following:
Open MHD app and go to Mon. in the bottom menu While cruising in Manual mode in 3rd preferably 4th gear 3000 RPM Click Data Logging in the opened MHD app then Click Start Log then floor the throttle till 6700 RPM then click Stop in the app. The app saves the log automatically Go to MHD folder on the phone you will the log in the Data Logging folder. Go to www.datazap.me and upload the log then share the link here. |
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06-11-2024, 12:49 PM | #782 | |
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06-11-2024, 01:12 PM | #783 |
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Not needed but if you want why not and you can log it aswell.
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2018 340i 8AT RWD - M Sport - Catless MPPSK - Stock Turbo - TU HPFP
Tunes: Self Tuned via MHD - Fuel: E18/92RON/87OCT https://datazap.me/u/ims/e20max?log=0&data=4-19-29 |
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06-11-2024, 07:13 PM | #784 |
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I did the pulls you told me to do twice and logged a 1/4 mile as well. I dont know which one is which tho lol. Very new to this.
https://datazap.me/u/bluecheese1204/...og=0&data=3-19 https://datazap.me/u/bluecheese1204/...og=0&data=3-19 |
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06-11-2024, 07:57 PM | #785 | |
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06-12-2024, 06:02 AM | #786 | |
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Yeah that explains the slow dragy 100-200 and also your 1/4 mile trap speed is low for that tune.
Timing corrections are borderline but what's really hurting your performance is the extremely low Ignition Timing and it's a result of the very high IAT. For timing corrections you need to add 5-10 liters of Ethanol and upgrade your HPFP as it's already struggling with Stage 2's boost. So for the time being your only choice is switching to Stage 1 - 91 Octane map. For the high IAT / low Ignition Timing unfortunately there's not much you can do other than checking the intercooler coolant cycle and changing the coolant may help give it a try. B58 Gen 1 IAT cooling system works well in cold weather but when it gets warm/hot it's crap and will heat soak I can't believe BMW produced such a poor system. From your log Ignition Timing is close to zero it should be at the very least 6-8 degrees @6250-6500 RPM. Quote:
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2018 340i 8AT RWD - M Sport - Catless MPPSK - Stock Turbo - TU HPFP
Tunes: Self Tuned via MHD - Fuel: E18/92RON/87OCT https://datazap.me/u/ims/e20max?log=0&data=4-19-29 |
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06-12-2024, 06:11 AM | #787 | |
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06-19-2024, 02:55 AM | #789 |
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Drives: G81 M3 Touring, GR Supra GTS
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You interested in b58 Supra times in here?
Air was good but road was cold and damp so there was a bit of wheelspin at the start. Just the driver, full tank, car loaded up as I was heading to the track. Rolled into it in 4th from around 80kmh. 2019 Supra, AMS Alpha 8 on e85. The log isn't from the run, but it was taken on the same day. I have since received another revision from the tuner but haven't had a chance to test it. https://datazap.me/u/nugs/road-logs?...-59&zoom=4-131 |
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06-19-2024, 03:58 AM | #790 | |
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Impressive 100-200 nice log too just ask your tuner to smooth that boost hump at 5K RPM which is most likely causing ignition timing to crash.
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2018 340i 8AT RWD - M Sport - Catless MPPSK - Stock Turbo - TU HPFP
Tunes: Self Tuned via MHD - Fuel: E18/92RON/87OCT https://datazap.me/u/ims/e20max?log=0&data=4-19-29 |
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06-19-2024, 02:05 PM | #791 | |
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2017 M240i/ ZF8 Pure Drivetrain Solutions Stage 1 & torque converter/xHP/ DAW Ultra Flow/ DS2/ Nostrum injectors/ E40 Doug Newton tuned/ ER DP/ Remus axle back/ BMS intake/ FTP CP/ M Perf LSD
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