GSM Delta historic race car
Extremely rare race/road car thought to be one of three entered by the works in the Nurburgring 500km in 1961. It is road legal and race ready in most respects and complies with the regulations of the HSCC Historic Road Sports Series and is pending a HViF. It could have Goodwood Revival potential, a Delta having won a race at Goodwood in 1961 driven by Jeff Uren.
GSM - Glass Sport Motors was a South African company dating from 1958 and the prototype Delta (Dart in SA) was produced in the UK, where fibreglass technique was already established. About 150 were produced in SA and about 50 in the UK, production ceasing in 1964. The Delta/Dart was not a kit car, the car being sold complete and proved to be a successful race car in period).
Restoration of the present car had been started by a previous owner who had removed the body and replaced the main chassis tubes. He had then refitted the body, suspension and brakes using new parts as necessary. At that point however, he unfortunately passed away and the car remained untouched for some 20 years until its acquisition by the present owner who completed its restoration.
The originally flat topped wheel arches have been slightly rounded, but in all other respects originality has been retained, ie it has drum brakes all round, the original large diameter tubular chassis is unchanged in design, the suspension (transverse leaf front, five linked solid rear axle on coils) is unchanged although with raised spring rates and adjustable dampers. It has what is believed to be its original close ratio gearbox and engine to the original 1000cc.
The engine is to near FJ spec. having Holbay forged pistons, steel rods, vernier cam timing wheel, steel main bearing caps and lightened rockers on steel posts. It has, however, an organic clutch and a hollow iron crankshaft but comes with a steel 20/20 crankshaft which will need to be ground to 30/30 and re nitrided. The engine had apparently been rebuilt by the previous owner and unrun before the present ownership and has had only testing since. A Cosworth A6 cam was fitted by the present owner and an oil cooler is fitted together with twin 40DCOE Webers. New tyres are fitted from the HSCC approved list. If the car is to be used on the highway a milder cam will be advisable.
Some spare body panels (doors, bootlid etc.) come with the car and an option to buy another GSM project.