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Sport Specials

Descriptions, regulations and registration for the Sport Specials Formulae.

Sponsored by Protech Shocks
Sponsored by Protech Shocks

Protech Shocks Sport Specials Championship

Catering for genuine ‘production’ Sport Specials, Kit Cars, Caterhams and Westfields as well as’ one-off’ road-going two-seater specials, all using production car engines with modifications.

Classes are 2000cc Duratec; 1800cc Zetec incorporating Westfield Cup Class and Tiger Zetec's; Roadgoing two-seater specials including one-off Sport Specials/Caterham R300/R400 with power-to-weight ratio up to 340bhp/tonne.


A Ford 2000cc, 16 Valve (Duratec DHE 420) engine in its 145PS form
B Ford ‘Zetec’ engines as specified within regulation 5.7.C.1.
C Roadgoing two-seater sports specials with a maximum power to weight ratio of 340bhp/tonne, measured at the flywheel. Normally aspirated engines only, limited slip differentials permitted, four-wheel-drive not allowed.

This class is intended to encompass a variety of cars, including ‘one-off’ specials, and also cars such as Caterhams and Ariel Atoms. 

Suspension

Type of suspension both front and rear including springing medium and pick up points is free. Dampers are free. Rose joints may be used.

Brakes

Four/six-pot calipers allowed depending upon class. No ABS.

Transmission

Gearbox and diff must be from a production car. Close ratio gears are permitted, maximum 5/6-speed depending upon class.

Tyres

The control tyre is the Yokohama A048R or Avon CR28 in Class A/B. Rim width is 7". Class C can use any List 1A/B tyres.

Rounds

There are 14 rounds in the 2016 season spread across seven 'double-header' race weekends, of which the best 12 count for the Championship.

Membership

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