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Type | Fixed-head coupé | Fixed-head coupé | Fixed-head coupé | | |
Seats | 2 | 2 | 2+2 | | |
Doors | 2 | 2 | 2 | |
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Top Speed | 112 mph | 127 mph | 131 mph | | |
Standing 1/4 mile | 17.20s | 15.00s | 16.00s | | |
Power-to-weight | 131.2 hp/ton | | 137.23 hp/ton | | |
Specific Output | 0 hp/cu in | 0 hp/cu in | 0 hp/cu in | |
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Engine | Straight 4 | Straight 4 | Straight 4 | | |
Valve train | Overhead valves | Overhead valves | Overhead valves | | |
Valves | 2 valves per cylinder
8 total valves | 2 valves per cylinder
8 total valves | 2 valves per cylinder
8 total valves | | |
Displacement | 79 cu in | 98 cu in | 98 cu in | | |
Bore x Stroke | 3 in x 3 in
0.95 ratio | 3 in x 3 in
0.93 ratio | 3 in x 3 in
0.93 ratio | | |
Compression ratio | 9.00:1 | | 10.20:1 | | |
Maximum power | 82 hp @ 5900 rpm | 129 hp @ 6250 rpm | 129 hp @ 6250 rpm | | |
Maximum torque | 76 ft.lb @ 3500 rpm | 108 ft.lb @ 5000 rpm | 108 ft.lb @ 5000 rpm | | |
Maximum RPM | 6500 | | 6800 | | |
Fuel | Petrol | Petrol | Petrol | | |
Main bearings | 5 | | 5 | | |
Construction | Cast iron block &
Light alloy head | | Light alloy block &
Light alloy head | | |
Coolant | Water | Water | Water | | |
Sump | | | Wet sumped | |
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Wheelbase | 83 in | 84 in | 89 in | | |
Length | 152 in | 152 in | 164 in | | |
Width | 60 in | 61 in | 64 in | | |
Height | 44 in | 44 in | 45 in | | |
Track | front: 51 in
rear: 50 in | | front: 55 in
rear: 56 in | | |
Ground clearance | 6 in | 6 in | 6 in | | |
Kerb weight | 1378 lb | | 2072 lb | | |
Weight distribution | 40.00 | | | | |
Fuel capacity | 10 US Gal | 10 US Gal | 16 US Gal | |
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Engine location | Rear | Rear | Rear | | |
Engine Alignment | Longitudinal | Longitudinal | Longitudinal | | |
Wheel Drive | Rear wheel drive | Rear wheel drive | Rear wheel drive | | |
Transmission | 4, Manual
| 5, Manual
| 5, Manual
| | |
Top gear ratio | 1.03 | | 1.03 | | |
Steering | Rack & Pinion | Rack & Pinion | Rack & Pinion | | |
Turns lock-to-lock | 3.2 | | 2.5 | | |
Turning circle | 33 ft | 0 ft | 33 ft | | |
Brakes | front: Disc rear: Disc
| | front: Disc Ventilated rear: Disc servo assisted
| | |
Brake diameter | front: 10 in
rear: 10 in
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