Alfa Romeo A75 Turbo group A (1986)
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Home » Rally Cars » Alfa Romeo A75 Turbo
alfa_romeo_75_elpa_rally.jpg Source Development chain
1986: Alfa Romeo A75 Turbo
1988: Alfa Romeo A75 V6 3.0
Development level
Group A
Group N
Production

Specifications

Group/Class A/8 Homologation number: A 5307
Years active 1987 Homologation start: 1/8/1986
Homologation end: 31/12/1999
Engine
Type 60567271, straight 4cyl, 4 stroke, petrol engine located front longitudinal
Capacity 1779 cc WRC: x 1.4 = 2491 cc
x 1.7 = 3024 cc
Bore x Stroke (mm) 80.0 x 88.5
Compression ratio 7.5:1
Output power - torgue 240 HP / 7900 rpm 28.5 kgm (280 Nm) / 4600 rpm
Main bearings 5
Materials block: aluminium alloy cylinderhead: aluminium alloy
Cams/valves dual overhead camshafts (DOHC) 2 valves/cyl. - 8 valves total
Aspiration Garrett T3 turbocharger with intercooler,
bosch motronic fuel injection
pressure: 1.5 bar
Ignition electronic
Cooling system watercooled
Lubrication system dry sump
Transmission
Type rear wheel drive 5 speed gearbox located near rear differential
Gearbox ratios 1st: /1
2nd: /1
3rd: /1
4th: /1
5th: /1
Diffrential ratio 3.910/1 limited slip rear differential
Clutch dry single disk
Chassis-body
Type steel monocoque 162B chassis with roll-cage. 4 door saloon body
Front suspension double wishbones with torsion bar and anti roll bar
Rear suspension watt's linkage with dedion axle, coil spring, anti roll bar
Steering system rack and pinion
Brakes ventilated disks all around. Rear disks are located near rear differential (not in the wheel)
Dimensions
length: 4.420 m (174.0 in) width: 1.660 m (65.4 in) height: 1.400 m (55.1 in)
wheelbase: 2.510 m (98.8 in) front track: 1.380 m (54.3 in) rear track: 1.395 m (54.9 in)
Rims - tires 6.5" x 14" - 15" 195/60 VR14
Weight 1080 kg
Weight/power 4.5 kg/HP
Fuel tank 70 lt
Drag coefficient 0.37

Garrett T3 specifications

Wheel trim T3
Compressor
Inducer diameter 48mm
Exducer diameter 60mm
Housing T3
Max airflow 506 cfm

Turbine
Exducer diameter 47.2mm
Inducer diameter 53mm
Housing T25


Results in WRC

Statistics

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 Total
Total WRC results
Races /wins 2 1 1 1 3 1 1 2 2 1 15
Entries/finishes 2/0 2/0 2/1 1/0 4/1 1/0 1/1 2/0 2/0 2/0 19/3 (15.8%)

Races

Works team: -

Season
Entry Rally event
Driver
Codriver
Team MC SVE
Entry list
POR KEN TdC GRE NZ ARG FIN (CdI) SR RAC (Oly)
Oğuz Gürsel
Nadir Ünal
dnf
Gabriele Noberasco
Massimiliano Cerrai
half shaft
Statistics
Starts/finishes 2/0 1/0 1/0

alsace88_loubet.jpg Source
Yves Loubet Rallye Alsace-Vosges 1988

Drawings

alfa_romeo_75_1989.jpg Source

Garret T3

Garrett_AiResearch_T3_Turbocharger.jpg Source
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Figura Referencia Descripción
1 400674-0812 Tornillo ( car. admisión )
2 410218-0001 Cierre ( car. admisión )
3 409589-0144 Caracol admisión m.
3 431901-0005 Caracol admisión
4 409248-0000 Junta ( car. admisión )
5 400677-0816 Tornillo ( car. escape )
7 408848-0003 Cierre ( car. escape )
8 444443-0001 Caracol escape
9 443989-0001 Tuerca eje / flecha
10 409096-0014 Rueda compresora
11 408049-0009 Segmento ( escape )
12 451311-0003 Turbina y eje / flecha
13 409639-0000 Plato calor
15 400674-0616 Tornillo ( plato )
16 430108-0003 Plato
17 400424-0000 Aro de goma
18 406907-0001 Cojinete empuje
20 409558-0000 Collarín
21 400568-0000 Anillo resorte ( cojinete )
22 410775-0001 Cojinete / Buje
24 430027-0050 Alojamiento cojinetes (bujes) / Cartucho
25 444441-0002 Alojamiento válvula
26 430819-0066 Válvula / Actuador
27 445215-0018 Seguro de válvula
29 210021 Junta salida aceite
30 413534-0001 Racor ( car. admisión )
38 400825-0820 Tornillo ( alj. válvula )
54 407516-0003 Espaciador

Limited slip differential

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