Haltech R3 NEXUS - Still 5 (Yes. FIVE!) Devices In ONE, Just Smaller

ECU, PDM, datalogger, oscilloscope and a wideband controller, all in one unit that now fits in your pocket. It's not for your pocket flex game though, so let's take a look at what the NEXUS R3 is aimed at accomplishing for you


We've talked about the Haltech NEXUS R5 VCU (vehicle control unit, a fancy term for 'many features in one') before and are excited to see a baby brother at a lower price point soon hitting the market as discussed with Anthony Truong from Haltech.

The R3 uses RadSok power connectors, 1 x Deutsch DTP connector for the PDM side of things, 2 x AMP Superseal 1.0 26-pin connectors, WiFi antenna port & a USB C data connection that we love seeing here as much as we did on the R5 (great for gloved hands on race day!).

So who is this for? Maybe you? If you are running a high performance 4 cylinder with some bells and whistles like staged injection, the Haltech R3 is going to handle this for you along with a V8 setup that has one injector per cylinder. The R3 also retains the same functions as the R5 when it comes to advanced tuning options like torque management, nitrous control, race timer, flat shift and closed loop boost control. It does this while also controlling your engine electrics and drive-by-wire throttle system via an onboard PDM keeping the wiring simple and more affordable, depending on how your 'accountant' looks at these things.

This is all controlled via one piece of software, which like the USB C port is a nice touch for ease of use, especially when in a rush at an event or leaving a hand free to grab a beer instead of hovering over Alt+Tab keys.

amp superseal 1.0
The R3 In Numbers

Ignition - 8
Injector (peak and hold) - 8
Digital Pulsed Outputs (DPO) - 6
Power for Ignition Switch - 1
Half Bridge Outputs (HBO) - 6 (maximum 2 x H-Bridges/DBW throttles)
25A High Current Outputs (25A HCO) - 4

Analog Voltage Inputs (AVI) - 11
Differential Engine Position Inputs - 2 (Trigger and Home)
Synchronised Pulsed Inputs (SPI) - 6
Knock Inputs - 2
On-board Wideband Controller (NTK/LSU 4.9) - 1
Ignition Switch Input - 1

CAN Bus Networks 1000, 500 or 250 kbit/s - 2
High-Speed USB 2.0 (USB-C interface) - 1
On-board Wi-Fi

Onboard Data Logging - 128MB
Inertial Measurement Sensor Onboard - 6 Axis
Oscilloscope - 4 Channel
5V Sensor Supply - 1
8V Sensor Supply - 1
Sensor Ground -1

Drive-By-Wire Throttle Support - 2
Flex Fuel
Closed Loop O2 Control - Dual Bank
Knock Control - Dual
Variable Cam Control - Up to 4
Long-Term Learning - Up to 4D
Data Logging - Laptop + Onboard
Anti-Lag Rotational Idle
Launch Control
Traction Control
Tuning Table Resolution - 32 x 32 x 8 4D
Engine Protection - Multi-Level
CAN Networks - 2
Nitrous Control - 6 Stages
Boost Control - 4D Closed Loop
Intake Air Bleed Control
Flat Shift Control Open/Closed Loop
Shock Travel & Ride Heigh
Trans Brake
Race Timer
Driveshaft and Engine RPM Targeting

haltech nexus r3

0:00 - Anthony T
0:20 - Direct Fire & Sequential Injection Options
0:55 - Built In Power Distribution Module
1:50 - Function Breakdown
2:23 - Onboard Wideband Control
3:06 - Data Logging - 128mb Onboard
3:20 - Available SOON!
3:55 - Learn how to tune these.

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