Motorsport Electronics

Longman Racing Ltd specialises in the supply of all types of motorsport electronic components found in modern racing vehicles including Powerboxes and CAN switch panels.

Electronics Expertise

Michael Longman (Company Director) spent just under a decade being employed for OBR Control Systems and was involved in all aspects of the business, from initial product design ideas, right through to production, programming and eventually implementation into customer vehicles. The experienced gained ranged across the whole spectrum from club racers right up to Le Mans prototypes and most in between.

OBR Power Control Modules

Market leading capability and unrivalled current handling in a single unit.

The flagship PCM2 product features 48 dedicated power output channels, ranging from low power (15A) to High power (25A) and Very high power (50A). The unit also featuring a selection of low & high power outputs capable of pulse width modulation.

4 CAN ports, 1 LIN port, 14 Analogue inputs, 12 Digital switch inputs as well as an intuitive and open event based configuration of the unit mean the unit quickly becomes the most flexible in the vehicle.

New to the 2021 range of power distrubtion modules (PDM, PCM) is the OBR PCM-LITE, a 34-Channel unit with 8 analogue, 8 digital inputs, and 2 x CAN bus. Designed with all of the knowledge learnt from previous designs but more suited to the adapting motorpsort markete this unit offers cost effective, reliable and high level vehicle power management.

The PCM-LITE unit from OBR is the latest design and release of power control module. Taking its strategy and operation from the flagship PCM2, this totally clean sheet design levels up once more from the award winning PCM2. This unit features 34 dedicated power output channels.

2 CAN ports, 8 Analogue inputs, and 8 Digital switch inputs compliment the unit’s capabilities. Combined with the same intuitive and open event-based configuration tool, Lite quickly becomes the most flexible in the installation.

The diagnostic capability is retained with error status, temperature and current draw for each individual output all monitored. All this diagnostic information can be exported via user defined CAN exports to the vehicles data logging and displayed in real-time to the driver interface.

This unit features automotive connectors, with gold plated crimp contacts and threaded battery input for easy vehicle installation by end users.

OBR Control Systems Powerbox PCM2, PDM, PDU.


Longman Membrane CAN Switch Panels

Intelligent, lightweight, striking switch control.

The new Longman Button Panel offers cost effective, intelligent, lightweight, and striking CAN switch control, it is an evolution of the original OBR MSP.

These programmable CAN panels offer improved driver visibility, simplified cockpit layout, increased flexibility and quick error diagnosis.

The Longman Button Panel (LBP) has been designed as an evolution of the original OBR Control Systems MSP. The (LBP) continues to simplify both wiring complexity and maintain intelligent microprocessor control over a traditional switch panel. The LBP CAN controller can directly replace the previous generation OBR CAN controller.

These programmable CAN panels offer improved driver visibility, simplified cockpit layout, increased flexibility, and quick error diagnosis.

Panels can handle up to 21 switches with software configurable momentary or latching conditions, user selectable CAN bus settings, as well as up to 3 optional analogue inputs. All data is exported via one of the 2 x CAN ports, both with user selectable CAN termination jumpers. Vehicle connection is via a 5 pin Deutsch ASL Autosport connection as standard.

The LBP Switch Panels feature UV-florescent inks for button surrounds and labels as standard; developed especially for endurance racing (requires addition of LED strip in cabin for nighttime applications).

LED switch status lights are controlled in closed loop feedback from the vehicles VCU, PDM, PCM, ECU. This control provides excellent fault diagnostics and a clear indication of switch/output status.

As a standard off the shelf option, there are 2 x  Universal layouts (15 switch and a 12+3) offered each including 100 icon/label sticker packs (Pictured).

The LBP switch panels can also be supplied in totally custom configurations, shapes, size, logos, labels, and general design. Custom panels subject to individual quotation.

Multiple panels can be used in single installations (Driver + co-driver). The LBP controller can also be incorporated into CAN based steering wheels/panels.

The LBP CAN controller PCB is also sold as a separate part for integration into customers own switch/steering wheel hardware.

PC Communication is provided by micro USB cable with rear side USB port, this also allows easy power supply to the panel whilst off vehicle to enable configuration on the bench with a dedicated user configuration software for Windows PCs.

General specs:

  • User defined CAN Identifiers (Hex) for switch output (default = 0x401).
  • Software selectable momentary or toggle switch status.
  • Provision for 3 x 0..3.3V analogue inputs.
  • Analogue inputs can be converted/scaled/modified and exported over CAN.
  • Green LEDs display switch status, linked to feedback from PDM output channel.
  • Red LEDs displays output channel error status or any user defined warnings from PDM.
  • Adjustable LED intensity / brightness via CAN command.
  • User defined CAN bus speed.
  • Micro USB communication.
  • Selectable CAN bus termination
Longman Racing CAN Switch Panel

CAN interface modules

Additional flexibility allowing customised electronic solutions.

Longman Racing can offer a variety of CAN modules and expansion units to suit many different applications for example; custom dashboard panels, steering wheels, vehicle sensor expansion hubs, or handle bar controls. Each unit offers a variety of programmable I/O as well as CAN connectivity and simplified wiring.

Currently stocked products for this include the OBR SWC1000 CAN controller and the newly released LBP CAN controller.

OBR MSP, OBR PCM2 powerbox, OBR SWC can controller, Plex Tuning SDM 550 datalogger, FIA R4 motorpsort electronics supplied by Longman Racing

Motorsport and automotive sensors

High quality, high accuracy and high durability.

The key to a reliable electronic system is reliable data and ultimately it is the sensors which provide those signals.

Longman Racing offers a range of off the shelf motorsport spec sensors for use in conjunction with a wide variety of dataloggers and engine management systems found on the market today.

Temperature, pressure, distance, position, flow, level, air/fuel mixture and speed are all presented in various packages to suit almost any customer requirement.

Longman Racing LR-P-5BAR turbo MAP sensor, LR-P-10BAR Oil/Fuel Pressure sensor, LR-P-100BAR brake pressure sensor.

Motorsport and automotive wiring

Universal or custom harness cable assemblies.

The wiring should be considered one of the single most important aspects of the vehicle.

Longman Racing can supply a range of pre-assembled universal engine harnesses to suit EFI Technology ECUs.

More complex installations will require a customer specification to be determined according to the application and budget. From then onwards the job will be produced on Longman Racing’s behalf by trusted wiring loom specialists.

Motorsport dash displays and dataloggers

Compact, mid or large size colour dash loggers for motorsport..

Longman Racing Ltd is pleased to offer the latest range of full colour dash display screens and combined data loggers from PLEX Tuning & AIM Technologies.

Each dash logger is designed to acquire and display data coming from the vehicle ECU via CAN bus. The software features a huge selection of pre-defined ECU CAN templates and also the ability to create your own custom CAN import/export, meaning total integration into any system.

Plex Tuning SDM 550 datalogger, FIA R4 motorpsort electronics supplied by Longman Racing

Depending on the kit selected, most feature an internal accelerometer and gyro, 4GB memory, GPS mouse, a mixture of analogue / digital inputs as well as predefined math channels as standard.

System performance and data acquisition capability can also be incremented by adding up to eight expansion modules including multiple HD video cameras. The range of 5”, 6” and 7” dash displays have been specifically designed to suit any cockpit installation.

Data analysis is carried out using the extremely capable Race Studio or PLEX Data Analysis softwares.

Please contact us for full range.

2D datalogging products and software

Official data supplier to Moto motorcycle championships

Longman Racing Ltd can also supply and assist with datalogging systems and electronic products from 2D Debus & Diebold Meßysteme GmbH.

2D offer a range of dataloggers and CAN bus loggers of the highest quality with analysis via the advanced Race 2018 software. Software from 2D is usually supplied on the basis of a license system and we can assist in providing these directly from 2D.

Please contact us for full range.

2D datarecording systems supplied by Longman Racing, CAN loggers.
Get in touch

To find out what Longman Racing can do for you, make an enquiry today.