[proTUNING Freaks]

In the previous two videos we demonstrated bootmod3's new custom code features integrated into the factory DME (ECU), namely on-the-fly map switching and rolling antilag, both of which are using steering wheel controls for triggers allowing users to flash the car once and then select between any 4 maps that can be custom tuned to suit your modifications, octane and racing needs and to spool the turbo without using brake boosting and slightshot your way forward when racing Here are the links to those two other articles:

Map Switching:
https://f80.bimmerpost.com/forums/sh....php?t=1768838

Rolling Antilag:
https://f80.bimmerpost.com/forums/sh....php?t=1770711

In this video we're demonstrating another new tuning feature that is in the works by the bootmod3 dev team called FLEX FUEL. bootmod3 Flex Fuel integration is a set of custom tables predefined to tune your vehicle for dynamic aggression/power in the tune based on input from a Flex Fuel sensor. In this case we're using a Continental flex fuel sensor with a Zeitronix ECA2 kit which sends Flex Sensor's data over the CANBus which the DME handles in real-time to make the tune more or less aggressive based on ethanol % in the fuel. We previously made map switching on-demand work using the steering wheel controls. Now, there's a new option to also enable Flex Fuel in the tune and define separate tables for tuning for ignition, fuel, load/torque, various safeties, and many others. Tuning details behind getting a flex fuel tune working are also very straightforward and very powerful. A tuner defines your base map or maps (1 through 4) which you can select through the steering wheel (example: Map1: Stage 1 93 map, Map 2: Stage 2 93 octane, Map3: Stage 2+ 98 octane, Map 4: Stage 2+ race gas) . Any or all of the 4 switchable maps can now be configured as ENABLED for Flex Tuning. When enabled, data from the Flex Fuel Sensor is used to scale between say a pump gas E0 (no ethanol tune, or E10) to a full E85 or E100 (100% ethanol) tune. If sensor detects no ethanol then the scaling leaves the base maps alone without scaling them upwards in aggression. If the sensor detects and sends say 50% ethanol to the DME then the DME can be set to change ignition, fuel, load/torque and many other tables to increase power levels due to ethanol's much higher octane over petrol/gasoline.

In this demo, we're demonstrating on a 2015 BMW F80 M3 which starts out with a 20% ethanol blend in the tank. Those that enjoy the details can see the blend factors are set for 0.50 for this ethanol level just as an example. Currently there are 3 main blend factor tables, ignition, fuel and torque, and they can be individually used to scale among many tables required for tuning Flex Fuel, from cold starting the car with full ethanol in the tank to full on power. In the end of the video we add some more alcohol and you can see in the bootmod3 dashboard how the Flex % goes upwards from 20% to 27% as the fuel system catches up and the fuel in the tank gets a chance to blend as it isn't instant.

This video is done on the S55 but the changes are being ported to all vehicle platforms supported by bootmod3.

Hope you enjoy this video!

[-Eidos]

Nice!

For the enthusiasts that are looking to upgrade their cars for the 2021 season, when do you expect these features to roll-out for the F87 N55 platform?

This information is vital for planning out builds as there is already another proven solution out there for the S55 and N55 M2 (I am running it on my N55 right now).

[detroitm2]

Originally Posted by -Eidos

Nice!

For the enthusiasts that are looking to upgrade their cars for the 2021 season, when do you expect these features to roll-out for the F87 N55 platform?

This information is vital for planning out builds as there is already another proven solution out there for the S55 and N55 M2 (I am running it on my N55 right now).

Same question.

[detroitm2]

Originally Posted by proTUNING Freaks

In the previous two videos we demonstrated bootmod3's new custom code features integrated into the factory DME (ECU), namely on-the-fly map switching and rolling antilag, both of which are using steering wheel controls for triggers allowing users to flash the car once and then select between any 4 maps that can be custom tuned to suit your modifications, octane and racing needs and to spool the turbo without using brake boosting and slightshot your way forward when racing Here are the links to those two other articles:

Map Switching:
https://f80.bimmerpost.com/forums/sh....php?t=1768838

Rolling Antilag:
https://f80.bimmerpost.com/forums/sh....php?t=1770711

In this video we're demonstrating another new tuning feature that is in the works by the bootmod3 dev team called FLEX FUEL. bootmod3 Flex Fuel integration is a set of custom tables predefined to tune your vehicle for dynamic aggression/power in the tune based on input from a Flex Fuel sensor. In this case we're using a Continental flex fuel sensor with a Zeitronix ECA2 kit which sends Flex Sensor's data over the CANBus which the DME handles in real-time to make the tune more or less aggressive based on ethanol % in the fuel. We previously made map switching on-demand work using the steering wheel controls. Now, there's a new option to also enable Flex Fuel in the tune and define separate tables for tuning for ignition, fuel, load/torque, various safeties, and many others. Tuning details behind getting a flex fuel tune working are also very straightforward and very powerful. A tuner defines your base map or maps (1 through 4) which you can select through the steering wheel (example: Map1: Stage 1 93 map, Map 2: Stage 2 93 octane, Map3: Stage 2+ 98 octane, Map 4: Stage 2+ race gas) . Any or all of the 4 switchable maps can now be configured as ENABLED for Flex Tuning. When enabled, data from the Flex Fuel Sensor is used to scale between say a pump gas E0 (no ethanol tune, or E10) to a full E85 or E100 (100% ethanol) tune. If sensor detects no ethanol then the scaling leaves the base maps alone without scaling them upwards in aggression. If the sensor detects and sends say 50% ethanol to the DME then the DME can be set to change ignition, fuel, load/torque and many other tables to increase power levels due to ethanol's much higher octane over petrol/gasoline.

In this demo, we're demonstrating on a 2015 BMW F80 M3 which starts out with a 20% ethanol blend in the tank. Those that enjoy the details can see the blend factors are set for 0.50 for this ethanol level just as an example. Currently there are 3 main blend factor tables, ignition, fuel and torque, and they can be individually used to scale among many tables required for tuning Flex Fuel, from cold starting the car with full ethanol in the tank to full on power. In the end of the video we add some more alcohol and you can see in the bootmod3 dashboard how the Flex % goes upwards from 20% to 27% as the fuel system catches up and the fuel in the tank gets a chance to blend as it isn't instant.

This video is done on the S55 but the changes are being ported to all vehicle platforms supported by bootmod3.

Hope you enjoy this video!

Are you using the Zeitronix unit in place of the expansion board you all are building?

[-Eidos]

Originally Posted by detroitm2

Are you using the Zeitronix unit in place of the expansion board you all are building?

Another member asked on Facebook. See attached for the answer:

[detroitm2]

Originally Posted by -Eidos

Another member asked on Facebook. See attached for the answer:

Thanks. Sounds like they're using the unit as a replacement for their own expansion board. Until it's ready.

Sounds like that kit from Bend is the way to go.

[bmxcamel]

What is the eta for these features to be released?

[MTWO]

Nice work! You guys look like you’re freezing there!

[mike@x-ph.com]

Keep up the good work guys

[akkando]

Let me know when this comes to the N55 platform.

[ZM2]

This is not available yet for the M2.

[ZM2]

Sounds like once this is finally released for the M2, this still won’t be the full on Flexfuel switching we were all hoping for just yet, without custom tuning: https://f30.bimmerpost.com/forums/sh...6#post27627876

Maybe later this year the ability to dynamically switch bn say the Stg 2 93 OTS and Stg 2+ E30 OTS maps via an ethanol sensor will be available.

[F87source]

Originally Posted by ZM2

Sounds like once this is finally released for the M2, this still won’t be the full on Flexfuel switching we were all hoping for just yet, without custom tuning: https://f30.bimmerpost.com/forums/sh...6#post27627876

Maybe later this year the ability to dynamically switch bn say the Stg 2 93 OTS and Stg 2+ E30 OTS maps via an ethanol sensor will be available.

That would be so dope!

[detroitm2]

Originally Posted by ZM2

Sounds like once this is finally released for the M2, this still won't be the full on Flexfuel switching we were all hoping for just yet, without custom tuning: https://f30.bimmerpost.com/forums/sh...6#post27627876

Maybe later this year the ability to dynamically switch bn say the Stg 2 93 OTS and Stg 2+ E30 OTS maps via an ethanol sensor will be available.

Hmrm, That's not what I got out of that comment. It sounds like the 3 multimaps (Stg1, Stg2, Stg2+) they have will adjust Timing, AFR, etc based on ethanol content. That's exactly what flex fuel tuning is.

[ZM2]

Originally Posted by detroitm2

Hmrm, That's not what I got out of that comment. It sounds like the 3 multimaps (Stg1, Stg2, Stg2+) they have will adjust Timing, AFR, etc based on ethanol content. That's exactly what flex fuel tuning is.

Yeah, I’m confused at this point without having the ability to dig in before it’s released for our cars.

To me some of the comments make it sound full on flex, and some make it sound like it’ll only switch bn maps within the same multi-map category.

We’ll know for sure when it comes to the M2!

[detroitm2]

Originally Posted by ZM2

Yeah, I’m confused at this point without having the ability to dig in before it’s released for our cars.

To me some of the comments make it sound full on flex, and some make it sound like it’ll only switch bn maps within the same multi-map category.

We’ll know for sure when it comes to the M2!

Oh. I agree. There's all kinds of mixed info floating around.

[ctt300]

The new MultiMaps are full flex fuel maps when use with the sensor. You do have the option of manually configuring ethanol % through the LiveAdjust menu(See Pic all the way below), but that resets with each ignition off and must be set up again upon subsequent start ups.

This is for N55 EWG, non-M2.. Here's what the map details look like for Stg 1, 2, 2+:

[ZM2]

Thanks ctt300

The confusion/wondering on how this will work day-to-day is the fact that the Stage 2+ MultiMap only includes the Stg 2+ E30 and Stg 2+ Race Gas maps.

Most of us with upgraded HPFP's would want this set up where we can go bn Stg 2+ E30 and Stg 2 93 based on the ethanol content in our fuel. It doesn't look like the MutliMaps will do that as of now.

[ctt300]

Right and having maps like that is what we all thought we'd be getting, but from what I hear and due to popular demand, that will be released in the future.

Only other way is to have a custom MultiMap created by a tuner right now.

[ZM2]

Originally Posted by ctt300

Right and having maps like that is what we all thought we'd be getting, but from what I hear and due to popular demand, that will be released in the future.

Only other way is to have a custom MultiMap created by a tuner right now.

Got it. Well, a good start none-the-less, especially since it's a feature release that doesn't cost us BM3 guys anything more.

BTW, I saw your post over on the F30 N55 board and completely missed in all this that you can check your current Emix % via the tach, and don't need a separate bluetooth adapter/app, etc. That's pretty cool!

[SebsM2]

Multimap is here!!

[MTWO]

Originally Posted by SebsM2

Multimap is here!!

Released for M2? Yes!!!