NAG type C4

from Wikipedia, the free encyclopedia
NAG

Image does not exist
C4 / D4
Production period: 1920-1927
Class : upper middle class
Body versions : Touring car , limousine , landaulet
Engines:
Petrol engines : 2.55–2.6 liters
(22–37 kW)
Length: 4600-4750 mm
Width: 1600-1700 mm
Height: 1800 mm
Wheelbase : 3000-3300 mm
Empty weight : 1300-1900 kg

The NAG type C4 was brought onto the market in 1920 by the Berlin automobile manufacturer NAG as the first car model after the First World War . The construction came from chief engineer Christian Riecken .

It had a 4-cylinder in-line engine with upright valves and a displacement of 2.55 liters, producing 30 hp (22 kW) at 1700 rpm. and transmitted its power to the rear wheels via a 4-speed gearbox with a gear lever on the outside right. The engine was equipped with magneto ignition . The car had a U-profile pressed steel frame and two rigid axles that were suspended from semi-elliptical leaf springs. It was available as a 6-seater touring car, a four-door landaulet or a 4-door sedan.

2 years later the sports car type C4b was introduced. Its engine developed 40, later even 45 HP (33 kW). The rear semi-elliptic leaf springs were carried out under the axle. Instead of steel-spoke wheels, the sports car had wire-spoke wheels. The four-seater, open car achieved a number of victories at motorsport events, mostly driven by the designer Riecken himself. From 1924 this type was also called "Monza".

From 1925 the type C4m inherited the C4b. Its 2.6 liter engine developed 50 hp (37 kW); the valves were positioned at an angle to the cylinder axis for better gas flow. The wheelbase was shortened by 200 mm. Some of these chassis were, however, provided with heavy limousine and touring car bodies. This resulted in frame breaks and other imperfections that damaged the brand's reputation.

As early as 1924, the NAG type D4 had replaced the type C4. Its 2.6 liter engine with overhead valves developed 45 hp (33 kW). The shift lever for the 4-speed gearbox was now either on the inside right or in the middle of the car.

When production ended in 1927, a total of around 5000 copies of all C4 and D4 types had been made.

Technical specifications

Type C4 (10/30 HP) C4b (10/40 hp / 10/45 hp) D4 (10/45 HP) C4m (10/50 hp)
Construction period 1920-1924 1922-1924 1924-1927 1925-1926
Superstructures T6, L4, Bd4 T4 T6, L4, Bd4 T4
engine 4 cyl. Row 4-stroke 4 cyl. Row 4-stroke 4 cyl. Row 4-stroke 4 cyl. Row 4-stroke
Valves standing (SV) standing (SV) top steering (OHV) inclined (SV)
Bore × stroke 83 mm × 118 mm 83 mm × 118 mm 78 mm × 136 mm 84 mm × 118 mm
Displacement 2553 cc 2553 cc 2598 cc 2614 cc
Horsepower) 30th 40-50 45 50
Power kW) 22nd 29-37 33 37
at speed (1 / min) 1700 2400-2800 2800 3000
compression 5.2: 1
consumption 12 l / 100 km 13 l / 100 km 15 l / 100 km 14 l / 100 km
transmission 4-speed 4-speed 4-speed 4-speed
Top speed 75 km / h 100 km / h 90 km / h 120 km / h
Empty weight 1500 kg 1300 kg 1660-1900 kg
Perm. total weight 2310-2550 kg
Electrics 12 volts 12 volts 12 volts 12 volts
length 4600 mm 4750 mm 4650 mm
width 1640 mm 1600 mm 1700 mm
height 1800 mm 1800 mm
wheelbase 3100-3200 mm 3200 mm 3300 mm 3000 mm
Front / rear track 1350 mm / 1350 mm 1350 mm / 1350 mm 1350 mm / 1350 mm 1350 mm / 1350 mm
wheel size 820 × 120 or 820 × 125 820 × 120 820 × 120 or 32 "× 6.20" 820 × 120

swell