[TUNING] BM3 Gen 1 B58 Map Help

alexander7599 · 12-04-2021, 01:34 PM

2018 440i F32

I ordered a VR Performance intake, VRSF catless downpipe, and Dorch Stage 2 HPFP. The pump should arrive next week, and will be installed once BM3 releases the flash DME unlock.

I live in California (ACN91). Assume all my parts are installed and DME is unlocked. [COLOR="DarkOrange"]What are the primary differences[/COLOR], as far as timing changes, boost pressure, etc, between running a Stage 2 ACN91 and Stage 2+ E30 map? The reason I am asking is because you can set the Stage 2 ACN91 to read a Dorch S2 Pump, but the Stage 2+ E30 map includes the HPFP as required in the description of the tune.

I have access to two E85 stations nearby so getting the fuel mix shouldn't be a problem.

Thanks!

Rdurty2 · 12-04-2021, 04:59 PM

Primary difference is more power on an e30 map

weehe126 · 12-04-2021, 07:53 PM

Apples and oranges, probably a 80whp difference.

Mr. 340 · 12-04-2021, 07:57 PM

The biggest changes will be the timing. You will be able to run significantly more timing than with the ACN91. Not sure how much boost pressure will increase by.

12-04-2021, 01:34 PM	#1
alexander7599 Alexander Hartunian 66 Rep 95 Posts Drives: 2018 BMW 440i Join Date: Sep 2018 Location: Napa, CA iTrader: (0) Garage List 2018 BMW 440i [0.00]	2018 440i F32 I ordered a VR Performance intake, VRSF catless downpipe, and Dorch Stage 2 HPFP. The pump should arrive next week, and will be installed once BM3 releases the flash DME unlock. I live in California (ACN91). Assume all my parts are installed and DME is unlocked. [COLOR="DarkOrange"]What are the primary differences[/COLOR], as far as timing changes, boost pressure, etc, between running a Stage 2 ACN91 and Stage 2+ E30 map? The reason I am asking is because you can set the Stage 2 ACN91 to read a Dorch S2 Pump, but the Stage 2+ E30 map includes the HPFP as required in the description of the tune. I have access to two E85 stations nearby so getting the fuel mix shouldn't be a problem. Thanks! __________________ 2018 F32 440i - Black Sapphire Metallic - KW Suspensions V1 \| VRP Intake \| VRSF Catless Downpipe \| Dorch Stage 2 HPFP \| MHD OTS Stage 2 E40
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12-04-2021, 04:59 PM	#2
Rdurty2 Captain 862 Rep 795 Posts Drives: 2022 M240i Join Date: Feb 2019 Location: NY iTrader: (0)	Primary difference is more power on an e30 map
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12-04-2021, 07:53 PM	#3
weehe126 Brigadier General 1202 Rep 3,243 Posts Drives: 2017 340i Join Date: Apr 2014 Location: San Antonio iTrader: (2)	Apples and oranges, probably a 80whp difference.
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12-04-2021, 07:57 PM	#4
Mr. 340 Private First Class 71 Rep 180 Posts Drives: 2016 BMW 340i Join Date: Apr 2020 Location: Panama iTrader: (0)	The biggest changes will be the timing. You will be able to run significantly more timing than with the ACN91. Not sure how much boost pressure will increase by. __________________ AFE Filter \| BMS Intake Pipe CTS DP \| CTS CP \| CTS Heat Exchanger PTP Turbo Blanket \| AEM WMI Kit \| Custom Exhaust PJ ACN91 + Meth tune\| XHP Stage 3
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