REV2 Controller — The REV2 Controller is a state-of-the-art motorsport ECU, featuring industry-first FlexRay™ and Direct PWM motorsport ECU technology. It comes in a durable IP66 waterproof enclosure and includes a Mil-Spec motorsport-grade wiring harness for reliability in demanding conditions. Development of the REV2 Controller began in 2019, with early discussions taking place in the bootmod3 enthusiasts group on Facebook. After years of research and refinement, this advanced hardware and software solution is now available! Once installed, the REV2 Controller communicates directly with the vehicle's DME using the high-speed and robust FlexRay™ protocol. Additionally, bootmod3 Custom ROM V2 introduces Direct PWM — an innovative control strategy that optimizes performance with greater precision. What is FlexRay™? FlexRay™ is a high-speed communication protocol used in both vehicles and aircraft. It's designed to be reliable, fault-tolerant, and efficient. FlexRay™ is 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 Direct PWM? bootmod3 Custom ROM V2 software update implements Direct PWM 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, Direct PWM provides for the absolute fastest, most direct control of a REV2 connected output. Which outputs can use Direct PWM, and how is this configured? Sequential Port Injection and Boost Control Solenoid (MAC valve) are configurable with Direct PWM trigger control; 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 of 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 (REV2 contains no state or tuning data), the REV2 Controller integrates WiFi. Any firmware updates would be done through the bootmod3 app. 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? DME Custom ROM V2 and REV2 utilize the static segment on FlexRay to guarantee message delivery for output control communications. Does the 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, 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 does not have a built-in MAP sensor or an input for an aftermarket MAP sensor. Instead, provided is a separate plug 'n' play harness which connects an aftermarket MAP sensor directly to the OEM vehicle harness. The aftermarket MAP sensor is then calibrated in custom tables stored on the DME. Does REV2 and bootmod3 Custom ROM V2 provide any safeties for connected inputs and outputs? REV2 simply relays connected sensor data to the DME. Bootmod3 Custom ROM 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 Custom ROM to use the REV2 Controller on my car? The 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. The DME must be running the bootmod3 Custom ROM 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 Custom ROM 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 Custom ROM 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 The 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 the 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 Custom ROM V2 is a MUST! Contact [email protected] if you're unsure what software your vehicle's DME is running Cloned (fully programmable) DME, or, FEMTO unlocked specifically for bootmod3 Custom ROM V2 CURRENT VEHICLE SUPPORT: 2022+ BMW G80 M3 / M3 CS 2022+ BMW G82 / G83 M4 / M4 CS 2022+ BMW G87 M2 2020+ BMW F97 X3M / F98 X4M
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