Home MG Engineering and Motorsports MGB Tuning Handbook (1800cc) 62-74

MGB Tuning Manual: 1962-1974

MGB tuning manual table of contents

Getting the best from your MGB
Choice of fuel
Sparking plugs
Static ignition setting
The Dunlop center-lock wheel

General data

Tuning
Ordinary road work
Stage 1 By port polishing
Stage 2 For middle-range acceleration
Competition
Stage 3 Compression ratio 9.6 to 9.8 : 1 (head machined)
Stage 3A Compression ratio 9.6 to 9.8 : 1 (flat top pistons)
Stage 3B Compression ratio 10.5 : 1 (head and pistons)..
Stage 4 Compression ratio 9.3 to 9.5 : 1 (head and pistons)
Stage 5 Compression ratio 9.3 to 9.5 : 1 (Weber carburetor)
Stage 6 Compression ratio 10.4 to 10.6 : 1 (Weber carburetor)

Other special items
Brakes
Carburetor (Weber)
Clutch
Crankshaft
Crankshaft bearings
Cylinder head gasket
Distributor
Dynamo
Exhaust system
Flywheel
Fuel pump
Fuel tank (supplementary)
Gearbox (close ratios)
Gearbox (dipstick and oil seal)
Hand brake (fly-off)
Oil cooler
Oil filter
Oil pump
Oil sump
Rear axle ratios
Road springs
Road wheel and tire—assembly balance
Shock absorbers
Spark plugs
Timing chain sprockets
Torque wrench settings
Valves and guides
Valve springs
Water thermostat and fan

Competition equipment (list)
Optional extras
Accessories

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