Spitfire General Specification Data

If not specified, data refers to Spitfire 1500

Capacitiesnon-US marketUS market
Fuel37.6 liters9.9 gallons
Engine oil with filter change4.5 liters4.75 quarts
Engine oil without filter change4.0 liters4.25 quarts
Gearbox.85 liters.9 quarts
Gearbox with overdrive1.35 litres1.4 quarts
Final Drive (diff.).57 liters.6 quarts
Cooling System4.5 liters4.75 quarts (1.2 gallons)

Engine Specs.(Tuning Data)non-US marketUS market (the same as non-US if no difference is indicated)
Number of cylinders4 in line
Bore of cylinders2.9 in (73.7 mm)
Stroke of crankshaft3.44 in (87.5mm)
Capacity91 cubic in (1493 cc)
Compression ratio9.0:17.5:1 (1976 – 9.0:1)
Maximum power71 b.h.p. Din at 5500 rpm53 b.h.p. SAE net at 5000 rpm
Maximum torque985 lbf/in at 3000 rpm830 lbf/in at 2500 rpm
engine weight (approx.)220 lbs. (100kgs) stripped plus weight of manifolds and flywheel
Lubrication for capacities see ourLubrication Specifications page
Oil pumpHigh capacity rotor type
Oil filterFull flow type, disposable cartridge
Oil warning lightExtinguishes at 3 to 5 lb/in2 (0.21 to 0.35 kg/cm2) oil pressure
Cooling System
Type‘No-loss’ Water system
Circulationimpeller type pump, Vee belt driven
Pressure13lb/in2 (0.91kg/cm2)
ThermostatOpens at 82 C (180 F) summer, 88 C (190 F) winter
Fan7 blades 12 1/2 in diameter13 blades 12 1/2 in diameter with viscous coupling
Fan belt0.75″ to 1″ (19-25 mm) deflection at mid point of longest run
Fuel system (also see Tuning Data page)
Tank (limited fill fuel tank)37.6 liters9.9 gallons
Fuel Octane1970 Mk3: 100 octane
1974-80 1500: 91 octane
PumpMechanically operated diaphragm type
CarburetterTwin SHUS4 side draughtsSingle Stromberg 150 CDSE side draught [1970]
Single Stromberg 150 CD4 side draught [1975,1979-80]
Single Stromberg 150 CD4T? side draught [1976-1978]
California market Single Stromberg CD4T 150 auto-choke, side draught
Air CleanerCombined air cleaner and silencer with replacement paper elementsU.S.A. models fitted with a temperature controlled inlet air flow
Crankcase ventilationClosed circuit breathing from rocker cover to constant depression side of carburetters.
Evaporative Emission controlN/AU.S.A. models only, sealed tank filler cap. Vapor emissions from tank are vented via a separator canister to a carbon canister located in the engine compartment. Canister is purged by carburetter depression. An air pump injects air into each exhaust port via a distribution manifold and an E.G.R. valve. A service indicator located in the engine bay illuminates a warning light on the facia when the E.G.R. valve is due for periodical maintenance.
Make/typeBorg and beck, single dry plate, diaphragm spring type
Release mechanismHydraulically operated
Plate diameter6.5″ to 1500, 7.25″ after
Facing materialBorg and Beck 11046 H.K. Porter 11046
SynchromeshOn forward gears
O/D 4th4thO/D 3rd3rd2nd1stRev.Gear Ratios-1.00-1.392.163.50 or 3.99 (Mk3)3.99Overall: USA3.103.894.315.428.4013.6215.51Overall: non USA2.893.634.035.057.8510.7014.48
Overdrive (Optional)
Make/typeLaycock J-Type
Operative on4th and 3rd gears
Overall ratio0.797:1
Final Drive (also see final drive page)
TypeHypoid bevel gears in rear axle
Effective Gearing (Approximate values depending on type and condition of tires)
O/D 4th4thO/D 3rd3rd2nd1stEngine speeds (rev/min) at road speed of 10 mph-U.S.A.47459566082712822084Non U.S.A.44255561677212001942
Road speed Data (Approximate values depending on type and condition of tires)
Road speed at 1,000 re/min engine speed O/D 4th gear22.6 mph21.2 mph
4th gear16.7 mph18.0 mph
Make/TypeAlford & Alder, rack and pinion
Turning circleSpitfire 1500: 24 feet (7.3 metres)
GT6: 25 feet 3′
Steering wheel diameter14.5 in (368mm)
Steering wheel nut1 1/16″
Turns lock to lock3 3/4
Brake System
Foot pedalHydraulic on all four wheelsTandem master cylinder operating front and rear brakes independently
Hand brakeMechanical on rear wheels only
TypeCaliper disc front, Drums rear
Disc diameter9 in (229mm)
Disk Lining area14.8 in2 (95cm2)
Disk Swept area150.0 in2 (967 cm2)
Wheels And Tires for more info see our Wheels/Tires page
Wheels3.5 x 13 Steel disk (Mk1-early Mk3)
4 1/2 x 13 Steel disc type (Mk3 up)
5 x 13 (1980)
Tires155SR x 13 in radial ply
Tire pressures-front21 lb/in2 (1.476 kg/cm2) (18 for Mk1-3)
Tire pressures- rear26lb/in2 (1.828 kg/cm2) (24 for Mk1-3)
wheel lug bolt studs3/8″
Chassis Data
Wheelbase83 in (2110 mm)
Track (2 up condition): front49 in (1244 mm)
Track (2 up condition): rearSpitfire Mk1-4/GT6 Mk1: 48 in
GT6 Mk2-3: 49 in
Spitfire 1500: 50 in (1270 mm)
Wheel alignment (2 up condition) front0 to 1/16 in toe in (0 to 1.5875 mm)For more info about alignments, visit the alignment page
rear0 to 1/16 in toe in (0 to 1.5875 mm)
Ground clearance (2 up condition)GT6: 4 in (102 mm)
Spit: 5 in (127 mm)
Camber (2 up condition) front2 degrees positive ±1/2
rear3 1/4 degrees negative ± 1
Caster (2 up condition)4 1/2 ± 1/2
King Pin inclination (2 up condition)6 3/4 ± 3/4
Electrical Equipment
Electrical System12 volt negative earth
Battery capacity40 amp hour at 20 hour rate
Alternator typeMk3: Lucas C40-1 limited by v.r. to 22 amp max.
1500: Lucas 16 ACR output 34 amps
Starter motorM.35 J inertia type
Overall Dimensions
Length149 in (3785 mm)155.25 in (3943 mm), 1976-1980: 156.3 in (3970)
Width58.5 in (1488 mm)
Height (unladen) to top of windscreen44.25 in (1125 mm)43.7 in (1110 mm)
Soft top hood erect45.8 in (1162 mm)45.6 in (1159 mm)
Hard top45.2 in (1148 mm)45.4 in (1153 mm)
Weights (approx)
Dry (excluding extra equipment)763 kg804 kg, 1976-80: 1761 lb (799 kg)
Basic Kerb (including water, oil, fuel and tools)792 kg829 kg, 1976-80: 1814 lb (823 kg)
Kerb (including optional extras, water, oil, etc.)841 kg876 kg, 1976-80: 1900 lb (862 kg)
Maximum gross vehicle weight1036 kg1061 kg, 1976-80: 2339 lb (1061 kg)
Hardtop weight58 lbs.
Towing Information
Maximum recommended trailer weight610 kg-when trailer being towed is equipped with brakes
200 kg-when trailer being towed is not equipped with brakes, providing that the total car and trailer laden weights do not exceed 1112 kg
Maximum starting gradient (fully laden car and trailer)5.5 degrees (with car engine in peak condition)
Maximum climbable gradient (fully laden car and trailer)4.3 degrees (with car engine in peak condition)