| MGB Mk I Roadster G/HN3 1962-1967 |
| Engine |
|
Cylinders
|
4 |
| Bore |
80.26 mm |
| Stroke |
88.9 mm |
| Displacement |
1798 cc |
| Valves |
Pushrod overhead |
| Compression Ratio |
8:8:1 |
| Carburettors |
Twin SU 1.5" HS4 |
| Power |
95 BHP @ 5400 |
|
|
| Transmission |
|
| Clutch |
8 Borg & Beck, single dry plate diaphragm |
| Gearbox |
4 Speed, Syncromesh on 2nd 3rd 4th |
| Ratios: |
|
| 4th |
1.0 |
| 3rd |
1.37 |
| 2nd |
2.21 |
| 1st |
3.64 |
| Reverse |
4.76 |
| Overdrive |
Optional from January 1963 Laylock Type D |
| 4th |
0.80 |
| 3rd |
1.10 |
| Final Drive |
3:9:1 |
|
|
| Chassis |
|
| Construction |
Unitary |
| Brakes |
Lockheed |
| Front |
10.75" disc |
| Rear |
10 x 1.75" drum |
| Steering |
Rack & pinion |
|
3 turns to lock |
| Suspension - Front |
Independent coil spring, wishbone |
| Suspension - Rear |
Half elliptic leaf spring
|
| Wheels |
Ventilated 4J x 14 disc |
| Optional |
4.5J wire wheels |
|
|
| Dimensions & Weight |
|
| Wheelbase |
7ft 7" |
| Track - Front |
4ft 1" |
| Track - Rear |
4ft 1.25" |
| Length |
12ft 9.2" |
| Width |
4ft 11.9" |
| Height |
4ft 1.4" |
| Ground Clearance |
4.5" |
| Turning Circle |
32ft |
| Kerb Weight |
18.5 cwt |
|
|
| Performance |
|
| Max Speed |
103 Mph |
| 0-60 |
12.2 Sec |
| Fuel Consumption |
22 mpg |
|
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| Production |
|
| UK |
19420 |
| USA |
71722 |
| Rest of the world |
18720 |
| Total |
115898 |
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