REV2 Controller - The most advanced and industry first FlexRay™ and DirectPWM motorsport ECU featuring an IP66 waterproof enclosure and a Mil-Spec motorsport-grade wiring harness.

With the idea and work originating as far back as 2019, even discussing it in the bootmod3 enthusiasts group on Facebook in May 2019, all the while juggling countless other development efforts on new features released since then such as CustomROM, new Map Editor, Flex Fuel Kits, WiFi Adapter, support for other engine types and vehicles, this incredible hardware/software interfacing project is finally here, and we can't be more excited have you use it!

Once installed in a vehicle, REV2 Controller integrates with the DME using the incredibly fast and robust FlexRay ™ protocol. In addition, bootmod3 CustomROM V2 goes a step further and implements a highly innovative PWM control strategy, DirectPWM.

What is FlexRay™?
FlexRay™ is a high-speed communication protocol used in vehicles and aircraft. It's designed to be reliable, fault-tolerant, and efficient. Its used in safety-critical applications, advanced driver assistance systems, power train, body control modules, battery management systems, and more. Over the past decade, vehicle manufacturers have transitioned away from CANBUS on modern vehicles for many in-vehicle control systems and REV2 Controller has followed that trend.

What is DirectPWM?
bootmod3 CustomROM V2 software update implements DirectPWM to re-purpose an existing DME pin output and uses it to send a PWM signal directly through the OEM factory vehicle harness to a REV2 input. REV2 in turn replicates that PWM signal to one of its outputs. With no communication protocol overhead involved, DirectPWM provides for the absolute fastest, most direct control of a REV2 connected output.

Which outputs can use DirectPWM, and how is this configured?
Sequential Port Injection and Boost Control Solenoid (MAC valve) are configurable with DirectPWM trigger control. Tuners and end users simply toggle it on the bootmod3 Map Configuration screen and store it on the DME. Integration is seamless and no configuration/updates are required to the REV2 Controller.

Once my REV2 is installed in the vehicle, do I need to connect it for any tuning like with some standalone ECUs?
No. You simply install the REV2 and forget about it :) All your tuning is still done on the DME using the bootmod3 Map Editor.

How do I update firmware on the REV2?
Although firmware updates are a very rare occurrence since REV2 contains no state or tuning data, for the odd occasion we may have a firmware bug, REV2 Controller integrates WiFi. Any firmware updates would be done simply through the bootmod3 app like with our bootmod3 WiFi Adapter.

Long question, geeks only! :) FlexRay™ has options for communicating using a dynamic and a static segment. Static segment is much harder to implement and its the one that ensures message delivery making it highly desirable over a lossy/broadcast type protocol such as CANBUS that which ensure message delivery. Tell me you implemented support FlexRay's static segment?
You bet we did! DME CustomROM V2 and REV2 utilize the static segment on FlexRay to guarantee message delivery for output control communications.

Does REV2 Controller implement an Ethanol Content Analyzer and send ethanol content and fuel temperature to the DME?
REV2 provides a digital input on its harness for an Ethanol Sensor. However, unlike with our bootmod3 Flex Fuel Kit Controller, REV2 does not do any ethanol content analysis in its firmware. As with all sensors connected to REV2 inputs, REV2 also sends raw frequency/PWM data from the ethanol sensor to the DME without any processing of it in the firmware. DME then analyzes that raw sensor data and converts it into ethanol content and fuel temperature.

Does REV2 a built in MAP sensor, or have an input for a MAP sensor?
REV2 doesn't have a built-in MAP sensor or an input for an aftermarket MAP sensor. Instead, we provide a separate plug'n'play harness which connects an aftermarket MAP sensor directly to the OEM vehicle harness. Aftermarket MAP sensor is then calibrated in custom tables stored on the DME.

Does REV2 and bootmod3 CustomROM V2 provide any safeties for connected inputs and outputs?
REV2 simply relays connected sensor data to the DME. bootmod3 CustomROM V2 functionality on the DME takes in that data to provide a tuner to configure over 40 custom trouble codes for various integrated safeties such as:

Ignition Coil Cut Safety, per cylinder
Direct Injector Cut Safety, per cylinder
Port Fuel Injector Cut Safety, per cylinder
Coolant Over-Pressure Safety (e.g. due to a leaking head gasket)
Fuel Pressure Safety
Various engine status safeties for: Cam Sync, Board Status, FlexRay connectivity
Over-boost Safety for Boost Control PID
Knock Safety based on Ignition Timing Corrections, per cylinder
Custom Load and Torque Limiter Safeties
Various Nitrous Safeties such as
- Bottle under/over pressure
- Lean run timer
- Pre/Post spray timer with Ignition Timing and Lambda Target compensations
Methanol / Water Tank Level Safety

Do I need bootmod3 or CustomROM to use the REV2 Controller on my car?
REV2 Controller is not a standalone ECU and as such does not have any calibration table data. All tuning and features are done on the DME. DME must be running the bootmod3 CustomROM V2 software update to use the REV2 Controller on your vehicle.

Do I need to re-send my DME to Femto for unlock again if I already unlocked it before?
If your vehicle's DME required a Femto unlock and you've already done it, unfortunately due to how Femto's unlock works, you'll have to re-send it for Femto to load the bootmod3 CustomROM V2 update on your DME. Those re-sending DMEs for updates get adjusted lower pricing, but for all DME unlock details get in touch with Femto.

My vehicle's DME doesn't require a Femto unlock. I can directly and fully flash it over OBD or after a bench unlock. Can I just flash the required bootmod3 CustomROM V2 map from my tuner on the DME?
Yes, flash away!

REV2 Controller has the following sensor inputs (sensors not included):

Fuel Pressure Sensor
Coolant Pressure
Ethanol Content Sensor
Nitrous Bottle Pressure Sensor
2 Exhaust Gas Temperature Sensors
Turbine Speed Sensor
Laser Ride Height Sensor
Methanol Flow Sensor
Methanol Tank Level Sensor

REV2 Controller has the following outputs (hardware such as injectors, solenoids and pumps not included):

Sequential Port Fuel Injection (PI) for up to 8 high impedance injectors
Boost Control support for a pneumatic boost solenoid (MAC valve)
Nitrous Solenoid
Methanol / Water Injection using 2 independent outputs for meth/water pump and solenoid
Fuel Pump
Line Lock, full integration with the brake pedal and OEM steering wheel controls requiring no additional aftermarket switches in the car

REV2 Controller base package includes everything needed to get started:

REV2 Board
REV2 IP66 Polycarbonate Enclosure and Mounting Bracket
REV2 Main Mil-Spec Race Harness
REV2 Flex Fuel Sensor Sub-harness (no sensor provided)
REV2 Pressure Sub-harness (optionally provided fuel pressure sensor at extra cost)
bootmod3 Plug'n'Play MAP sensor harness for OEM TMAP (intake manifold) sensor for use with the included 100psi (7 BAR) MAP sensor

We suggest adding the following sensor from the options:

150 PSI (10 BAR) pressure sensor (absolute pressure) for fuel pressure on your Port Injection feed line.
HIGHLY RECOMMENDED: Port injection fuel injectors from reputable brands such as Injector Dynamics or similar that publish injector flow and latency specifications.

For flex fuel support, if you're not already running a flex fuel kit on your vehicle and plan on running with ethanol (E85), we recommend our standard High Flow bootmod3 flex fuel kit. For those that don't mind losing some flow capacity in their DI fuel system we also have the option of going with the more economical kit that uses PR 360 fittings. This contains everything from our bootmod3 Flex Fuel Kit that is required for use with the REV2 as well as the ethanol sensor (exception being the wiring and the flex fuel kit's controller):

High-Flow (includes flex sensor bypass) bootmod3 Engine-Bay Flex Fuel Kit, or,
Standard (no flex sensor bypass) Kit with PR machined 360 Fittings

Suggestion: Replace the OEM charge pipe MAP sensor with a 5 BAR OEM Bosch/BMW MAP sensor.

REV2 Controller Requirements:
- bootmod3 CustomROM V2 is a MUST! Contact support@protuningfreaks.com if you're unsure what software your vehicle's DME is running
- Cloned (fully programmable) DME, or, FEMTO unlocked specifically for bootmod3 CustomROM V2

CURRENT VEHICLE SUPPORT:

- All S58 engine vehicles
- 2021+ BMW G80 M3 / M3 CS
- 2021+ BMW G82 / G83 M4 / M4 CS
- 2022+ BMW G87 M2

- 2019+ BMW F97 X3M / F98 X4M

REV2 Controller Marketing Website:
https://rev2.protuningfreaks.com/

Support for REV2 Controller on other vehicles and engine types will be rolling out following S58 release.

BMW M4

G82/G83 (2020-present)

F82/F83 (2014-2020)

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BMW M4

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