Custom tune benefits vs OTS MHD stage 1+

bobbby · 02-28-2021, 11:42 AM

2011 e90 n55 AT w/ the following mods -
Vrsf chargepipe
Mishimoto fmic
Xhp stage 3

This is my daily driver running mhd stage 1+ for the past year with no plans to get a downpipe due to being in LA and having to deal with smog. Also only going to use pump gas.

Anyone with experience with running a custom tune with just a fmic and chargepipe upgrade? Any thoughts on whether getting a custom tune would be worth it or should I just stick with the mhd ots stage 1+?

whyzee125 · 03-01-2021, 02:39 AM

I’d get a custom tune for an e30 mix. That would yield some nice gains. Otherwise without a downpipe and on crappy CA gas there is only so much you can do.

Turbod · 03-01-2021, 02:05 PM

If you want to make more power you'll need higher octane to do it. If you're not willing to do the downpipe then I would just stay with what you're currently running.

Supermoon · 03-01-2021, 06:31 PM

That's just stock plus FMIC with the worst gas in the US.
I wouldn't even run an OTS map. Factory map, or PPK at most.

bobbby · 03-02-2021, 09:19 PM

Thanks for the input guys. I thought as much - not willing to go through the trouble of doing an e30 mix.

Mhd 1+ runs fine tho so I guess that's pretty much all that there is to do. Curious if I'd be able to squeeze out a bit more performance and drivability through a custom tune.

Turbod · 03-03-2021, 11:06 AM

The drivability could be slightly different depending on the tuner you would choose. The power won't be noticeably different with your mods and octane. I would assume that you're having a handful of timing corrections on the OTS map so there wouldn't be much to gain by going custom.

02-28-2021, 11:42 AM	#1
bobbby Bobbby 32 Rep 59 Posts Drives: 2011 bmw 335i sedan Join Date: Mar 2018 Location: Los Angeles iTrader: (0)	Custom tune benefits vs OTS MHD stage 1+ 2011 e90 n55 AT w/ the following mods - Vrsf chargepipe Mishimoto fmic Xhp stage 3 This is my daily driver running mhd stage 1+ for the past year with no plans to get a downpipe due to being in LA and having to deal with smog. Also only going to use pump gas. Anyone with experience with running a custom tune with just a fmic and chargepipe upgrade? Any thoughts on whether getting a custom tune would be worth it or should I just stick with the mhd ots stage 1+?
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03-01-2021, 02:39 AM	#2
whyzee125 Brigadier General 1673 Rep 3,640 Posts Drives: Dinan stage 2 335i Join Date: Jul 2014 Location: Chattanooga Tn iTrader: (0)	I’d get a custom tune for an e30 mix. That would yield some nice gains. Otherwise without a downpipe and on crappy CA gas there is only so much you can do.
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03-01-2021, 02:05 PM	#3
Turbod Major 396 Rep 1,210 Posts Drives: 2014 E84 X1 35i M Sport Join Date: Mar 2015 Location: Oregon iTrader: (0)	If you want to make more power you'll need higher octane to do it. If you're not willing to do the downpipe then I would just stay with what you're currently running. __________________ 2011 E92 335i \| 11.7@125 SOLD 2017 Camaro SS \| 12.7@114 SOLD 2019 Audi TT RS \| 10.5@130 SOLD 2020 F97 X3M \| 11.0@123 2023 G80 M3 xDrive
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03-01-2021, 06:31 PM	#4
Supermoon Lieutenant 166 Rep 429 Posts Drives: 2011 e92 335xi Join Date: Aug 2015 Location: Seoul iTrader: (6) Garage List 2011 BMW 335i xDriv ... [10.00]	That's just stock plus FMIC with the worst gas in the US. I wouldn't even run an OTS map. Factory map, or PPK at most. __________________ 2011 E92 335i xDrive Pure Stage 1 \| DV+ & Inlet \| Injen Intake \| M3 Cowl \| ETS 5" FMIC & CP \| Aquamist HFS4 Direct Port \| CSF Radiator \| Wagner Catted DP \| BMW PE \| Apex FL-5 \| Michelin PS4S \| 335is Engine mount \| SDW Monoball thrust arms \| UUC Swaybars & SS Brake lines \| Bilstein B8 \| Dinan Springs & Shock mounts \| Whiteline RSFB \| M3 Rear Control arms \| Manzo Toe arms \| Wavetrac LSD
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03-02-2021, 09:19 PM	#5
bobbby Bobbby 32 Rep 59 Posts Drives: 2011 bmw 335i sedan Join Date: Mar 2018 Location: Los Angeles iTrader: (0)	Thanks for the input guys. I thought as much - not willing to go through the trouble of doing an e30 mix. Mhd 1+ runs fine tho so I guess that's pretty much all that there is to do. Curious if I'd be able to squeeze out a bit more performance and drivability through a custom tune.
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03-03-2021, 11:06 AM	#6
Turbod Major 396 Rep 1,210 Posts Drives: 2014 E84 X1 35i M Sport Join Date: Mar 2015 Location: Oregon iTrader: (0)	The drivability could be slightly different depending on the tuner you would choose. The power won't be noticeably different with your mods and octane. I would assume that you're having a handful of timing corrections on the OTS map so there wouldn't be much to gain by going custom. __________________ 2011 E92 335i \| 11.7@125 SOLD 2017 Camaro SS \| 12.7@114 SOLD 2019 Audi TT RS \| 10.5@130 SOLD 2020 F97 X3M \| 11.0@123 2023 G80 M3 xDrive
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