Alfa Romeo Alfetta GTV6 group 2 (1981)
gr.jpg
gb.jpg

Home » Rally Cars » Alfa Romeo Alfetta GTV6

232830d1325618120-gtv6-history-european-rallies-gtv6saut.jpg Source

Specifications

Click here

Group/Class 2 and A/8 Homologation number: 5855, A5135 and transferred by FIA to B288
Years active 1982-1985 Homologation start: 1/10/1981, 1/4/1983 and 1/1/1987
Homologation end: 31/12/1981, 1/1/1987 and 31/12/1991
Engine
Type Alfa Romeo Busso V6, code AR 016.46, V6 cyl (60o), 4 stroke, petrol engine located front longitudinal
Capacity 2492.5 cc WRC: 2492.5 cc
Bore x Stroke (mm) 88.0 x 68.3
Compression ratio 10.2:1, 11.0:1
Output power - torgue 215 - 220 HP / 7000 rpm 25.0 kgm (245 Nm) / 4600 rpm
Main bearings forged steel crankshaft with 4 main bearings 60mm diameter connecting rod length between centers 131mm, big end bearing tunnel diameter 52mm, aluminium alloy piston 34.35mm compression height
Materials block: aluminium alloy, 200 mm deck height cylinderhead: 2 x cross flow aluminium alloy with hemispherical combustion chambers
Cams/valves 2 x 1 overhead camshafts (SOHC), chain driven. Direct operation for inlet valves, exhaust valves operate with pushrods and rocker arms 2 valves/cyl. - 12 valves total. 42mm inlet valve diameter, 37mm exhaust valve diameter. 2 coil springs per inlet and exhaust valve
Aspiration natural, Bosch L-jetronic 0580.464.020 multipoint electronic fuel injection
Ignition electronic, firing order 1-4-2-5-3-6
Cooling system jacketed watercooled with pump, radiator, 280mm diameter-4 blades fan and thermostat 13.5 lt
Lubrication system wet sump 7 lt
Transmission
Type rear wheel drive 5 speed manual gearbox located in front of the rear axle, on same case with differential
Gearbox ratios 1st: 3.500/1 (49/14)
2nd: 1.956/1 (45/23)
3rd: 1.345/1 (39/29)
4th: 1.026/1 (39/38)
5th: 0.780/1 (32/41)
R: 2.620/1 (34/13)
1st: 2.570/1 (36/14)
2nd: 1.940/1 (33/17)
3rd: 1.550/1 (31/20)
4th: 1.220/1 (28/23)
5th: 1.000/1 (25/25)
R: 2.620/1 (34/13)
group 2: 1st: 2.33/1 (35/15)
2nd: 1.55/1 (31/20)
3rd: 1.22/1 (28/23)
4th: 1.22/1 (25/25)
5th: 0.89/1 (24/27)
R: 2.62/1 (34/13)
Diffrential ratio 5.129/1 (41/8), 4.555/1 (41/9), 4.200/1 (41/10), 3.910/1 (47/12)
Group 2: 3.41/1 (41/12), 3.59/1 (43/12), 3.75/1 (45/12), 3.91/1 (43/11), 4.3/1 (43/10), 4.56/1 (41/9), 5.12/1 (41/8), 5.86/1 (41/7), 4.77/1 (43/9), 5.37/1 (43/8), 6.14/1 (43/7).
1983, group A: 3.54/1 (39/11), 3.81/1 (42/11), 4.56/1 (41/9), 4.3/1 (43/10), 4.77/1 (43/9), 5.37/1 (43/8)
ZF limited slip with friction disks, hypoid bevel gear rear differential
Clutch dry single plate 190mm diameter
Chassis-body
Type steel monocoque chassis with roll-cage. 2 door coupe steel bodyshell, with plastic front and rear bumbers
Front suspension double wishbones with lower 'A' wishbone and 2 upper 'L' links , lower longitudinal torsion bars, telescopic shock absorber and anti-roll bar
Rear suspension trailing semi-trailing arm with de dion tube 'dead' axle, watt's linkage, coil spring and telescopic shock absorber
Steering system rack and pinion (no servo) 3.25 turns lock to lock, 19.5/1 or 15.9/1 ratio
Brakes front ventilated disks 269mm diameter with 2 piston calipers 48mm diameter, rear solid disks 250mm diameter with 2 piston calipers 38mm diameter. Group 2: front and rear ventilated discs 257mm diameter with 4 aluminium piston calipers 38mm diameter. 1983, group A: front ventilated discs 257mm diameter with 4 aluminium piston calipers (Lockheed CP2561-2) 41.3mm diameter, or ventilated discs 279mm diameter with 2 x 2 aluminium piston calipers 38mm diameter, rear ventilated discs 254mm diameter with 2 x 2 aluminium piston calipers 38mm diameter
Rear discs are inboard located, in gearbox/differential case
dual circuit with vacuum servo, adjustable ratio split front to rear
Dimensions
length: 4.263 m (167.8") width: 1.664 m (65.5") height: 1.330 m (52.4")
wheelbase: 2.400 m (94.5") front track: 1.375 m (54.1") rear track: 1.355 m (53.3")
Rims - tires 6" x 15" TRX 15/45-390
Weight 1140 kg 50% - 50% front to rear distribution
Fuel tank 50 or 73 lt, group 2: 100 lt
Drag coefficient 0.39

Results in WRC

Races

Season
Entry Rally event
Driver
Codriver
Team M.C (SVE) POR KEN TdC GRE N.Z BRA FIN S.R (CdI) RAC
Luengo
Arribas
dnf
Bernard Dongues
E. Bonvin
acci dent
Statistics
Others starts/finishes 2/0 1/0 1/0

tour-de-corse-1986-alfa-romeo-gtv6-loubet.png Source
Yves Loubet in Tour de Corse '86

Article

Click here

Drawings

alfa-romeo-gtv6-1984.gif Source

Engine

int_eng.jpg Source

Gearbox

int_trns.jpg Source
diagram.jpg Source

Suspension

int_fsus.jpg Source
Front suspension
int_susr.jpg Source
Rear suspension
Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution-ShareAlike 3.0 License