Race Engine Valve Springs

Our team has been designing and manufacturing high speed and high revving engine valve springs for some of the world’s most demanding Motorsport applications for over 2 decades. We have worked with wide ranging Autosport applications, ranging from World Rally Car, World Superbike to Le Mans 24, Nascar and Historic F1,

Why fit your high speed application with an off the shelf stock spring when we can design the bespoke solution optimised to your needs?

Advanced Damping Design Methodology:


We use the World’s best materials:

  • Silicon Chrome Valve Quality
  • Silicon Chrome Vanadium High Tensile
  • SiCr V +Nickel Ultra High Tensile
  • Superclean Raw Rod
  • Shaved & Peeled Surface Quality
  • Eddy Current Testing
  • Round, Shaped and Ovate Sections


Surface Finishes Include:

  • Shot Peening
  • Duplex Peening
  • Micro Peening
  • Micro Polishing
  • Nitriding
  • Printed Part Marking


Special End Coil Finishing:

  • Chamfer Inside Diameter
  • Chamfer Outside
  • Rounded and Squared End Coils
  • Chamfering of End Coils


Advanced Spring Design Services

  • Advanced Material Selection
  • 3D Spring Calculations
  • Maximum Stress and Stress Range Calculation
  • Fatigue (Goodman) Diagrams
  • Relaxation Prediction


Meeting the demands of the modern engine environment

  • Aggressive Performance Cam Profiles
  • High Turbo Back Pressures
  • Variable Valve Timing
  • Efficient Spring Damping Technology


Metallurgical services:

  • Failure Analysis Service
  • Digital Microscopy
  • Scanning Electron Microscope SEM
  • Failure Analysis Service
  • Micro-hardness Testing
  • Microstructure Review
  • Root Cause Failure Reporting Service