  Dan Gurney |
 Model 256 F1
Formula 1 racing car.
Years of activity 1959/60.
First race International ì200î Race, Aintree, of 18.4.1959
Engine Type 155/59. 6 cylinders in 65° V. Front-mounted. Light alloy cylinder block and head, press-fitted cast iron wet cylinder liners, 135 mm connecting rod, water cooled.
Bore and stroke 86 x 71 mm.
Unitary and total capacity 412.424 / 2,474.548 cc.
Compression ratio 9.8:1.
Max. power output 295 bhp at 8,600 rpm.
Timing gear 2 valves per cylinder, 2 overhead camshafts per bank of cylinders, chain drive.
Fuel feed Single per cylinder with 3 Weber 45 DCN twin-choke carburettors.
Ignition Double with Marelli twin magneto and Marchal 32 HFS sparkplugs.
Lubrication Forced, dry sump.
Transmission Rear. Dry, multi-plate clutch, hydraulic control, 528/B gearbox with 5 speeds + reverse, rear-mounted in block with self-locking differential.
Gear ratios Variable depending on racing circuit.
Frame Type 528/B. Steel tube frame.
Front suspension Double wishbones: double triangles, coil springs, coaxial Koni telescopic dampers and anti-roll bar.
Rear suspension De Dion axle, reaction arms, coil springs and coaxial Koni telescopic dampers.
Steering Gemmer France rack and pinion.
Brakes Dunlop discs on all four wheels with hydraulic control.
Tyres Front 5.50x16î, rear 7.00x16î. Dunlop.
Rims Spoked. Front 4.5Kx16î, rear 5.5Kx16î.
Wheelbase 2,220 mm.
Front/rear track 1,240 mm / 1,300 mm.
Length 4,030 mm.
Width 1,500 mm.
Height 980 mm.
Weight with water and oil 560 kg.
Fuel tank (litres) 150 in centre tank, 17 in side tanks.
Bodywork Single-seater aluminium body.
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