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The Davrian Mk7 was driven by Bob Jarvis (based in London) in the Modsport competition in 1977. Davrian and O Magazine were the sponsors. Bob's experience and success in Formula Vee in 1968 gained him entrance into the official works Davrian team in 1973 and 1974.

Bob blessed his mechanic and engine builder (Ian Carter), for the success he had with the Davrian Mark 7. In 1977, the Davrian Mark 7 was proposed to switch from the 998cc to a 1150cc Imp engine, due to its drivers comment that the other cars were giving him a hard time since they had more power. The car was also described as being very reliable, and had a good chance at the championship.

  • Body: standard Davrian production shell and chassis in glass fibre
  • Steering: standard production item
  • Fuel tank: standard Davrian
  • Cooling: standard Davrian
  • Modsports class: D (up to 1150cc)
  • Suspension: standard Imp suspension and Spax dampers all round, incl. Imp wishbones
  • Brakes: twin circuit brakes with balance bar. Jaguar discs and AR alloy racing calipers all round
  • Wheels: Mamba, rear 10x13, front 8x13 with Firestone racing tires
  • Engine: 998cc Imp engine, 118bhp at flywheel
  • Carburation: twin 40 DCOEs
  • Exhaust: Janspeed
  • Transmission: Jack Knight Imp gearbox, with changeable close, straight cut gears
  • LSD: Salisbury

BARC and BRSCC ran the two main modsports championships.

July 1977: the duel between Mr. Jarvis and the other two Davrian exponents in the smaller classes of the two championships faded when Bob got his intended 1150cc engine. He even worried a few more people in the bigger classes, too.

The basic design remained fairly unchanged throughout its production life.