Haltech - Nexus R3 VCU + Universal Wire-in Harness 2.5m (Vehicle Control Unit)
If you’ve been looking at the Nexus R5 and thinking it might be a bit of an overkill for your build – we’ve got some good news for you! The Nexus family of products is about to get a new member…
NEXUS R3 VCU
Much like its bigger brother, the new Nexus R3 combines the functionality of a power distribution module, a data logger, a wideband controller and a state-of-the art engine management system in one compact yet powerful device. With a small footprint and sharing a lot of powerful tuning features with the R5, the new R3 will provide an integrated vehicle control solution to racers, tuners, engine builders and performance enthusiasts alike.
WHAT'S INCLUDED:
• Haltech Nexus R3 VUC Only
TOTAL CONTROL, FULL FLEXIBILITY
• A data logger
• A power distribution module
• A wideband controller
• A high speed wi-fi communications module
• A new generation engine management system
All natively interconnected with each other.
All programmable with one single piece of software.
JUST THE FACTS
We figured the first, and the most frequently asked question about the new Nexus R3 will be: “How does it compare to the R5?” With that in mind we prepared this comparison table that should provide all the answers.
| Nexus R5 | Nexus R3 | |
| Ignition Outputs | 12 | 8 |
| Injector Ouputs | 18 | 8 |
| Digital Pulsed Outputs | 8 | 6 |
| Half Bridge Outputs | 4 (2 x H-Bridge/DBW) | 4 (2 x H-Bridge/DBW) |
| 8A High Current Outputs | 12 | 2 |
| 25A High Current Outputs | 4 | 4 |
| Analog Voltage Inputs | 23 | 11 |
| Synchronised Pulsed Inputs | 10 | 6 |
| Knock Inputs | 2 | 2 |
| On-Board Wideband Controller | Dual | Single |
| On-Board Data Logging | 512mb | 128mb |
NEXUS R3 FAQ
Are all the NSP functions available in the R5 also available in the R3?
Yes. The R3 shares all the NSP functions, including the Oscilloscope and all the Advanced Tuning Options like Torque Management, Nitrous Control, Race Timer, Flat Shift and Closed Loop Boost Control with the R5.
Does the R3 have Wi-Fi?
Yes. The R3 features an in-built Wi-Fi module for wireless communication and will ship with a Wi-Fi antenna.
Can I use the R3 on V8 engines?
Absolutely. The R3 will support 2, 4, 6 and 8 cylinder engines. However, if you are planning to run more than one injector per cylinder on your V8 you’ll need to get the R5.
- Colour coded and labelled wires that match the detailed wiring diagram for a confusion free construction process.
- The wiring diagram is accompanied by the full VCU manual and Software located on the USB key provided with the VCU, or downloadable from the Haltech Website.