Tempest 850 Specification

This should be read in conduction with the attached notes and the current Motorsport UK Competitor’s Yearbook.

Manufacturer(s) Tempest Cars
Model 850 & 850TT
Example Tempest
Minimum Wheelbase 84½in (2146mm)
Diameter of Road Wheels 12in or 13in
Number of Seats 2
Minimum Horizontal Dimension from Rearmost part of steering wheel and a vertical line through the axis of the rear wheels 30in (762mm)
Engines Reliant 850
Gearboxes Reliant 850
Rear Axle Casings Reliant Fox
Maximum horizontal dimension from the centre of the foremost spark plug orifice and a vertical line through the axis of the front wheels 13in (330mm)
Notes

(a) See permitted modifications listed under M6.4.1 and restriction stated in M6.4.2 In relation to listed cars, any further modifications will cause the vehicle to be reclassified into class 8.

(b) M6.7.1 – The use of wheels of diameter(s) other than as specified above will cause the vehicle to be reclassified into class 8.

(c) M6.8.1 & M6.8.3 The use of gearbox, and rear axle casings other than as specified above will cause the vehicle to be reclassified into class 8.

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