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Official BMW Club

Official BMW Club

Official BMW Club


BMW 315/1 Sport

Date of manufacture

1934 -1936

Bodywork type(s)

2 seater sports (Some Frazer Nash-BMWs with English coachwork)


Type Inline 6 cylinder

Capacity 1490cc

Bore x stroke 58mm x 94mm

Power 40bhp @ 4300rpm

Compression 6.8:1

Carburettors 3, Solex 26 mm sidedraught

Valve design Overhead, 2 per cylinder

Valve gear Camshaft in block. Push rods, Rockers, tappets and springs

Electrics 6 volt


Clutch Dry single disc. Fichtel & Sachs, K 10, 180 mm diameter.

Gearbox ratios


1st                   4.08:1

2nd                  2.35:1

3rd                   1.52:1

4th                   1.00:1

Axle ratio 4.38:1

Synchromesh 3rd and 4th


Frame Lightweight “A”-frame with two longitudinal tubular members,

 with varying diameter from 90 mm to 60 mm

dependant on load , and three

rectangular cross members

Suspension Front: Transverse leaf spring with lower wishbones

and integral single acting shock absorbers.

   Rear: Longitudinal leaf springs with rigid axle

and lever arm double acting shock absorbers.

Foot operated one shot central oil lubrication system

Steering Rack and pinion

Brakes Four wheel Bendix cable

Handbrake, cable on rear wheels


Wheelbase 2400mm

Track front/rear 1153/1220mm

Length/width 3900mm x 1440mm

Tyres 5.25 x 16


Fuel capacity 42 litres

Max speed 75 mph

Number produced 230 (15 rhd)

Club Mailing Address

BMW Historic Motor Club
Lower Norgrove,
Yarrington Road,

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