Makes › Alfa Romeo › 8C › 8C 2300 Monza · Factory competition · 1931–1933 Ultra Rare
Alfa Romeo
8C 2300 Monza
Short-chassis Grand Prix/sports-racing derivative of the 8C 2300, named after the 1931 Italian GP win
Photo: Calreyn88 · CC BY-SA 4.0
Contents
01Overview
At a glance
- Built
- 10 Built
- Years
- 1931–1933
- Engine
- Front-mounted longitudinal supercharged straight-eight · 2,336 cc / 2.3 LFactory: 2,336 cc
- Power
- 133 kW / 180 PSFactory: 178 hp · converted
- Top speed
- 170 km/hFactory: 170 km/h
- Body
- Not yet verified
- Designer
- Vittorio Jano
- In this archive
- Not yet verified
- Surviving
- Not yet verified
Sources and any conflicting figures are in the sections below.
Why it matters
The Monza was the short-chassis Grand Prix and sports-racing version of Vittorio Jano's 8C 2300, named after Nuvolari and Campari's victory in the 1931 Italian Grand Prix at Monza. The 8C 2300 family dominated sports-car racing in the early 1930s, with wins at the Mille Miglia, Targa Florio and Le Mans.
How rare is it?
Six separate kinds of rarity – never combined into one number.
Each kind of rarity is rated separately and never combined.
Photos
Exterior, interior and detail photos with their licences.
Alfa Romeo 8C 2300 Monza (Wikimedia Commons: Alfa Romeo 8C 2300 Monza)
Photo: Calreyn88 · CC BY-SA 4.0
Alfa Romeo 8C 2300 Monza (Wikimedia Commons: Alfa Romeo 8C 2300 Monza)
Photo: Giftzwerg 88 · CC BY-SA 3.0
Alfa Romeo 8C 2300 Monza (Wikimedia Commons: Alfa Romeo 8C 2300 Monza)
Photo: Prova MO · CC BY-SA 4.0
02Production & history
Production
Every figure says what it counts.
| What is counted | Figure | Basis | Status |
|---|---|---|---|
| Total model productionper-year figures 1931: 6, 1932: 4 (works Monza cars; many later conversions exist) | 101,2 | Factory production | Factory reported |
Independent counts (e.g. engine and colour) are never combined into a calculated figure. Surviving examples are never presented as original production.
History
After the 8C 2300 won the 1931 Italian Grand Prix, the Grand Prix cars built afterwards were known as Monzas. Six works cars were built in 1931 and four in 1932. The Targa Florio and early Grand Prix cars used a shortened 2,650 mm wheelbase, while Le Mans cars kept the long chassis for four-seat Zagato bodies. The slotted radiator cowl later seen as the Monza's trademark was not fitted to the 1931 racers.
Variants
How each version differs from the standard 8C 2300 Monza.
No variants documented yet. Have a source? Contribute it.
03Specifications
Technical specifications
Engine
| Engine family | Not yet verified |
|---|---|
| Engine code | Not yet verified |
| Layout | Front-mounted longitudinal supercharged straight-eight3 Independently researched |
| Cylinders | 81 |
| Displacement | 2,336 cc / 2.3 LFactory: 2,336 cc3 Independently researched |
| Bore | 65 mmFactory: 65 mm1Gooding (S3) says original blocks measuring 65 mm bore accompany chassis 2311218 while listing its fitted engine as 2,866 cc. |
| Stroke | 88 mmFactory: 88 mm1 |
| Compression ratio | Not yet verified |
| Valvetrain | 2 valves per cylinder, 2 overhead camshafts driven by gears1 |
| Fuel system | Carburettor1 |
| Induction | Roots-type supercharger3 Independently researched |
| Power | 133 kW / 180 PSFactory: 178 hp · converted3 Independently researchedSource states bhp. |
| Power at | 5,400 rpm3 Independently researched |
| Torque | Not yet verified |
Transmission & drivetrain
| Gearbox | Four-speed manual, rear-wheel drive3 Independently researched |
|---|---|
| Gears | Not yet verified |
| Driven wheels | Not yet verified |
Chassis, body & dimensions
| Chassis | Pressed steel side members and cross-members1 |
|---|---|
| Front suspension | Rigid axle, semi-elliptic leaf springs, friction dampers1 |
| Rear suspension | Rigid axle, semi-elliptic leaf springs, double friction dampers1 |
| Brakes | Mechanical drums1 |
| Steering | Not yet verified |
| Body construction | Gran Premio (racing) body1 |
| Wheelbase | 2,650 mmFactory: 2,650 mm1 |
| Length | 3,840 mmFactory: 3,840 mm1 |
| Width | 1,380 mmFactory: 1,380 mm1 |
| Height | 1,200 mmFactory: 1,200 mm1 |
| Front track | Not yet verified |
| Rear track | Not yet verified |
| Kerb weight | 920 kgFactory: 920 kg1Page says only "Peso". |
| Dry weight | Not yet verified |
Performance
| Maximum speed | 170 km/hFactory: 170 km/h3 Independently researched |
|---|---|
| 0–100 km/h | Not yet verified |
| Fuel tank | Not yet verified |
“Not yet verified” means no source has been checked for that value yet. Nothing is estimated to fill a gap.
04Colours & options
Factory colours & interiors
Original paint and trim, with the number of cars in each where a source gives it.
Not yet documented. Have a source? Contribute it.
Factory options & codes
Codes are shown exactly as written by the manufacturer.
Not yet documented. Have a source? Contribute it.
05Individual cars
Chassis register
Every documented car, with its colours, history and where it is now. Open a row for the full record. Known chassis are not automatically authenticated originals.
Not yet documented. Have a source? Contribute it.
Competition history
Every race result of the individual cars, in date order. Click a chassis number to open its full record in the register.
Not yet documented. Have a source? Contribute it.
Auction & sale history
Documented public sales of the individual cars. Click a chassis number to open its full record in the register.
Not yet documented. Have a source? Contribute it.
See one in person
Museums where an example of this car can be seen.
No example is documented on public display yet. Have a source? Contribute it.
06Reference
Identification guide
How to tell an original from a replica or later conversion.
Being verified against factory or registry sources before it is published. Have a source? Contribute it.
Sources
Each number links to the exact facts it supports.
-
1
Museo Storico Alfa Romeo, collection: 8C 2300 Monza Level A Museo Storico Alfa Romeo (Arese)
- Vetture Prodotte 10
- 8 cilindri in linea (Dettagli vettura)
- 2336 cc (65x88 mm) (Dettagli vettura)
- doppio albero a camme in testa con comando a ingranaggi (Dettagli vettura)
- Alimentazione a carburatore (Dettagli vettura)
- Longheroni e traverse in lamiera di acciaio (Dettagli vettura)
- Anteriore: assale rigido, balestre longitudinali semiellittiche (Dettagli vettura)
- Posteriore: ... doppi ammortizzatori a frizione (Dettagli vettura)
- A tamburo, meccanici (Dettagli vettura)
- Carrozzeria Gran Premio (Dettagli vettura)
- Passo: 2650 mm (Dettagli vettura)
- lunghezza: 3840 mm (Dettagli vettura)
- larghezza: 1380 mm (Dettagli vettura)
- altezza: 1200 mm (Dettagli vettura)
- Peso 920 kg (Dettagli vettura)
-
2
Alfa Romeo 8C 2300 Monza - Ultimatecarpage.com Level C
- 10 per-year figures 1931: 6, 1932: 4 (works Monza cars; many later conversions exist)
-
3
Alfa Romeo 8C 2300 Monza – specifications Level C Ultimatecarpage.com
- Straight 8, Front, longitudinally mounted
- 2,336 cc / 142.6 cu in
- Roots-Type Supercharger
- 178 bhp / 133 kW @ 5,400 rpm
- 178 bhp @ 5,400 rpm
- 4 speed Manual
- 170 km/h (106 mph)
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