MG TA/TB Midget group S (1936)
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Specifications

3003 units built as TA 1292 cc
379 units built as TB 1250 cc

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Click here for parts diagrams

MG MPJG, straight 4 cyl, 4 stroke, petrol engine (click here)
62.5 x 102.0 mm
1292 cc
6.5:1
50 HP @ 4000 rpm
80 Nm / 59 ft-lb @ 2500 rpm
cast iron crankshaft with 3 main bearings non-counterbalanced
cast iron block, 'reverse flow' cast iron cylinderhead with 3 exhaust ports and 2 inlet ports, 86.1mm height
side camshaft with pushrods, overhead-valve (OHV), 2 valves / cyl - 8 valves total
aspiration, natural with 2 x SU HV3 1" carburetors
4 speed manual gearbox with synchro-mesh top and 3rd gears
1st, 3.715/1
2nd, 2.20/1
3rd, 1.42/1
4th, 1.00/1
R, 4.78/1
Final drive: 4.875/1
dry single plate clutch
front suspension, dead axle with leaf springs and friction dumper
rear suspension, live axle with leaf springs and friction dumper
drum brakes all around hydraulically operated
Length: 3543 mm (139.5")
Width: 1422 mm (56")
Height: 1346 mm (53")
Wheelbase: 2388 mm (94")
Front track: 1143 mm (45")
Rear track: 1143 mm (45")
tires, 4.50 - 19"
850 kg
drag, coefficient, 0.7


Results in Endurance Races

Season
TA
Car entry, chassis number Car number/ result
Pau Mille Miglia Marseille Le Mans ACF Donington Tourist Trophy Brooklands
Date 21/2 4/4 6/6 20/6 4/7 24/7 4/9 18/9
Team GP 1600km 3h 24h GP 12h 500km 500km
R. A. Macdermid #18, 8th
R. A. Macdermid #19, 17th
R. A. Macdermid #20, 9th
George Harvey-Noble OTL
Statistics
Starts/finishes 4/3 3/3 1/0
Drivers Team entries and car number
R. A. Macdermid
R. A. Macdermid 18
J. M. Toulmin 18
J. A. Bastock 19
H. K. Crawford 19
Archie Langley 20
J. E. S. Jones 20

eng_MPJG-Engine.jpg Source
5735a32fb9df6_TA-Engine.jpg Source
img_2351-86a6becb-scaled.jpg Source

Drawings

Front axle

tfrontsusaxle-1-1200x844.jpg Source

Rear axle

trearsusaxle-1-1200x846.jpg Source
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