ARC
DJ Racecars
SPA Design
The Wing Shop

USA

Pennon

Measuring

ARC
A range of aluminium diffusers, focused on Nissan cars like the 350Z and Skyline but features products from other manufacturers.

DJ Racecars
DJ Racecars manufacture a highly regarded range of carbon-fibre composite aerofoils/wings, both finished bolt on units and as a 'kits of parts'. The designer of these aerofoils is Simon McBeath author of "Competition Car Downforce".

SPA Design
As our company name suggests Race Car Aerofoils are also one of our specialities. Manufactured from high grade materials SPA Aerofoils can supply a wide variety of profiles and sizes allowing the customer a multiplicity of choice in both Aerofoil Design and Installation.

The Wing Shop
The wing profiles, designed by SM Designs's Simon McBeath ( author of "Competition Car Aerodynamics" ) have either been evaluated in the MIRA full scale wind tunnel, and/or by computational fluid dynamics (CFD). Analysis of all this information has provided valuable technical support and development data. We also have university-based R & D projects enabling ongoing product improvement. And we are now using Fluent's Flowizard (TM) software for in-house mapping and development.

USA

Pennon
All Pennon diffusers are constructed from military aircraft spec aluminum honeycomb, infused with Dow toughened epoxy resin and vacuum baked into proprietary weave fabrics. These extreme measures result in the strongest, stiffest, lightest, undertrays possible.

Measuring