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Fiasco Italo-Brittanico
Appendix I: Specifications



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Roberto Guerrero


March-Alfa Romeo 90CA


This section has been compiled using data found in the Alfacorse press kit as well as the Miller Genuine Draft Indy Car media guide. As can be observed, there is a lack of consistency in some details between these two sources.


Type March 90CA
Chief designer Bert Baldwin
Chassis Monocoque made of aluminum honeycomb bearing body, upper section stiffened with composite materials
Body and spoilers Carbon fibre
Suspension Push-rod system
Shock absorbers Koni gas type
Brakes Ventilated steel disc brake
Fuel tank capacity 151 litres (40 gallons)
Wheel base - Alfacorse press kit data:
2845 mm for speedway version
2794 mm for road course version

- Miller Genuine Draft CART Indycar media guide data:
Road tracks: 2850 mm (112.19”)
Oval tracks: 2926 mm (115.19”)
Front track 1715 mm (67.50”)
Rear track 1613 mm (63.50”)
Length - Alfacorse press kit data:
4662 mm

- Miller Genuine Draft CART Indycar media guide data:
4674 mm (184”)
Body length 1504 mm
Height - Alfacorse press kit data:
812 mm

- Miller Genuine Draft CART Indycar media guide data:
927 mm (36.50”)
Length: 183.5 inches
Weight: 703 kg (1550 lb.)
Tyres Front: 24 x 10 x 15
Rear: 27 x 14 x 15
Gearbox purposely designed 6 speed + 1 reverse
Clutch AP Borg and Beck triple disc
Number of cars built 4 announced, at least 3 built


Type Alfa Romeo Indy V8
Configuration 8 cylinders in V, four valves per cylinder, double overhead camshafts. Forced induction by means of turbocharging, watercooled. Crankcase and cylinder heads out of aluminium
Bore x stroke 86 x 57 mm (3.38 x 2.24”)
Capacity 2648cc (161.63ci)
Compression ratio 11:1
Power 700 hp at 11,500rpm
Turbocharger Garrett AiResearch, wastegate control, maximum pressure 45 inch Mercury
Fuel feed Magneti Marelli IAW electronic indirect injection with two injectors per cylinder, incorporated in the direct/capacitive type ignition
Lubrication Drysump, one pressure oil pump, three scavenging oil pumps

Further comments

The 1990 Indianapolis 500 Media fact book stated in its engine section that the Alfa Romeo V8 was unique among the engines employed that year because of its use of silicon aluminum cylinder liners within the cylinder block instead of the more standard ductile iron liners.

Control of the turbocharger’s wastegate happened electronically, managed by the fully electronic management system.