We design and build world leading testing equipment and facilities, enabling our customers development and production of future propulsion systems.

We design and build test cell equipment to suit a broad range of applications
Whether you require a new automation system, a high speed dynamometer, altitude simulators, or a fluid conditioning for your e-motor project.
We have worked with many high profile clients globally
Flexibility of solutions is our ethos, we actively engage with our clients to deliver innovative solutions for their project challenges and requirements.
Turnkey provider to the test and development sectors
From concept design to specification generation, or the structural build and containment of the test cell and providing the associated services.
We can customise our products to suit your precise requirements
Our products are 100% designed and built by us. We have full design authority enabling us to meet your exact requirements.

Delivering excellence in test automation technology


  • E-motor Powertrain
  • Module Conditioning
  • Battery Emulation
  • Automation

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  • Consultancy
  • Safety Controller PLC
  • HVAC Upgrade
  • Full Test Cell Conversion


  • Research & Development
  • Production Test Stands
  • Quality Audit Test Beds
  • Durability Long Term


  • CADET Automation
  • Multi Dynamometers & Inverter Drives
  • Hybrid & E-motor
  • Gearbox Test & Development

Customised Products

  • Component Test Rigs
  • Fluid & Air Conditioning
  • Production Test Stands
  • Containerised Test Cells

Automation Systems

  • CADET V14
  • DACS High Performance
  • Specialist Software Development
  • Legacy Automation Upgrades


  • Certification
  • Engine & Vehicle Testing
  • Analysis Instruments
  • Calculations & Report Generation


  • Combustion Air Handling Unit CAHU
  • Altitude Simulators
  • High Pressure Boost Rigs
  • Ventilation & Exhaust Extract

We Deliver a Truly
Bespoke Service

We work with you to scope your project out, then take care of the whole process of planning, building and installing your system

We Specialise in a Range of Applications

Many of or products are suitable for a wide range of applications due to their flexibility, and some are built for specific applications

Products Customised To
Precise Requirements

Most people don't realise that our products 100% built by us and are customised to meet each project's specific requirements

Our Ethos

To design and build world leading testing equipment and facilities, enabling our customers development and production of future propulsion systems.

"Innovate to Differentiate"

Take a look at some of the best projects we've worked on

Our working style is one of teamwork, innovation, flexible solutions and challenging the status quo in all that we do.

Xtrac: Advanced Engine & Powertrain Transmission Test Cell Development

To support the future growth of Xtrac’s business they engaged with SCP to supply two test cells to enable EOL quality pass off and future development of existing and new products.

SCP designed and installed two new test cells each with multiple dyno’s which can be positioned to support a variety of test piece configurations.

Read more

Latest News

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Product Spotlight: Next Generation I/O System

The DACS Module

Dacs Module - Sierra CP Engineering
Product Spotlight: Next Generation I/O System

The DACS Module

Revolutionize your test cell data acquisition and control with this flexible module.

  • Configure core system with I/O modules
  • Operates over high-speed field-bus network
  • Swap out internal plug-in modules to reconfigure
  • Optimize test sequencing with CADET Automation System

Our third generation module, the DACS is a highly decentralized, modular approach to make your data acquisition more flexible and efficient. 

Need to change your channel mix? Just swap out the internal plug-in modules to reconfigure for the ones you need. 

Optimize test sequencing, data logging, control and user interface requirements when you couple your network with our advanced CADET Automation System.