Engine
Group/Class	2		Homologation number: 5361 and 5557
Years active	1970-1975		Homologation start: 1/7/1970 and 1/3/1974 Homologation end: 31/12/1981
Type	Fiat Twin Cam (Lambredi) Type 115.C.075, straight 4 cyl, 4 stroke, petrol engine			located front longitudinal
Capacity	1481 cc		WRC: 1481 cc
Bore x Stroke (mm)	77.0 x 79.5
Compression ratio	9.0:1
Output power - torgue	70-75 HP @ 5400 rpm 82 HP @ 5400 rpm		11.8 kgm @ 3200 rpm 12.2 kgm @ 4000 rpm
Main bearings	5 of 62mm diameter. Hom 5557: 63 mm diameter		connecting rod length between centers 136mm, big end bearing diameter 53mm, aluminium alloy piston with 49.3 mm compression height
Materials	block: cast iron		cylinderhead: cross-flow aluminium alloy with hemispherical combustion chambers
Cams/valves	2 overhead camshafts (DOHC), belt driven		2 valves/cyl. - 8 valves total. 35mm inlet valves diameter, 31.5mm exhaust valves diameter. 2 coil springs per valve
Aspiration	natural, 1 x Weber 34 DCHD carburetor, Hom 5557: 1 x Weber 34 DCHD12 carburetor 1978: 1 x Weber 34 DCHD18 carburetor
Ignition	with contact breakers, firing order 1-3-4-2			12V battery
Cooling system	jacketed watercooled with pump, radiator, 355 mm diameter-4 blades fan and thermostat			6.7 lt, Hom 5557: 7.5 lt
Lubrication system	wet sump			3.5 lt 1974: 4 lt
Transmission
Type	rear wheel drive	4 or 5 speed manual gearbox
Gearbox ratios	constant: 1.706/1 (29/17) 1st: 3.75/1 (33/15) 2nd: 2.30/1 (27/20) 3rd: 1.49/1 (21/24) 4th: 1.000/1 (-) R: 3.87/1 (34/15)	constant: 1.556/1 (28/18) 1st: 3.422/1 (33/15) 2nd: 2.100/1 (27/20) 3rd: 1.361/1 (21/24) 4th: 1.000/1 (-) R: 3.526/1 (34/15)	constant: 1.474/1 (28/19) 1st: 3.474/1 (33/14) 2nd: 1.989/1 (27/20) 3rd: 1.289/1 (21/24) 4th: 1.000/1 (-) 5th: 0.835/1 (17/30) R: 3.340/1 (34/15)	1971: constant: 1.556/1 (28/18) 1st: 3.67/1 (33/14) 2nd: 2.100/1 (27/20) 3rd: 1.361/1 (21/24) 4th: 1.000/1 (-) 5th: 0.881/1 (17/30) R: 3.526/1 (34/15)	1971: constant: 1.238/1 (26/21) 1st: 2.724/1 (33/15) 2nd: 1.857/1 (27/18) 3rd: 1.351/1 (24/22) 4th: 1.000/1 (-) 5th: 0.840/1 (19/28) R: 2.806/1 (34/15)
Diffrential ratio	4.1/1 (41/10), 4.3/1 (43/10), 5.55/1 (40/9), 5.375/1 (43/8)			hypoid spiral bevel gears limited slip rear differential
Clutch	dry single plate, 184mm diameter
Chassis-body
Type	steel monocoque FSO 115C.176 chassis with roll-cage. 2 door saloon steel bodyshell with plastic extended wheel arches and front/rear spoilers
Front suspension	double wishbones, coil springs, telescopic shock absorbers and anti roll bar
Rear suspension	live axle with semi-eliptic leaf springs, 1977: 2 upper longitudinal radius arms and telescopic shock absorbers
Steering system	FMS 000008 worm and roller			3.75 turns lock to lock
Brakes	solid disks all around, 227 mm diameter front 1 piston caliper 48 mm diameter, rear 1 piston caliper 34 mm diameter. 1977: front ventilated disks 256 mm diameter with 2 piston calipers 48 mm diameter, rear solid disks 256 mm diameter with 2 piston calipers 34 mm diameter				dual circuit with vacuum servo
Dimensions
length: 4.233 m (166.7")		width: 1.625 m (64")		height: 1.440 m (56.7")
wheelbase: 2.505 m (98.6")		front track: 1.298 m (51.1")		rear track: 1.275 m (49.41")
Rims - tires	4.5-5.5 x 13"
Weight	980 - 1000 kg
Fuel tank	45 lt

Entry		Rally event
Driver Codriver	Team	M.C	SVE Entry list	S.R	KEN	MAR	A	GRE	RAC Entry list

Robert Mucha Marian Bien		dnf
Sobieslaw Zasada Ewa Zasada		dnf
Ryszard Nowicki Piotr Mystkowski		dnf
Karmornicki Krupa		dnf
Ruscinski Wedrychowki		dnf*

Statistics
Others starts/finishes	5/0	5/0

Entry		Rally event
Driver Codriver	Team	POR	KEN	FIN	S.R	R.L	P.R	RAC	TdC

Andrzej Jaroszewicz Marian Bień	works		clutch
Robert Mucha Ryszard Żyszkowski	works		eng ine

Statistics
Others starts/finishes	2/0		2/0

Entry		Rally event
Driver Codriver	Team	M.C	SVE	KEN	GRE	MAR	POR	FIN	S.R	TdC	RAC

Juhani Kynsilehto Henk van Tunen											dnf
Andrzej Jaroszewicz Richard Hudson-Evans											dnf

Statistics
Others starts/finishes	2/0										2/0

Entry		Rally event
Driver Codriver	Team	M.C	(SVE) Entry list	POR	KEN	GRE	ARG	(FIN)	N.Z	S.R	TdC	RAC	CdI

Raimo Myyrä Eero Harinko								47th

Statistics
Others starts/finishes	1/1							1/1

Entry		Rally event
Driver Codriver	Team	M.C	SVE	POR	KEN	MAR	GRE	POL	FIN	A	S.R	USA	RAC Entry list	TdC

Robert Mucha Ryszard Zyszkowski	works	35th										6th
Andrzej Jaroszewicz Andrezej Szulc - Zbigniew Dziadura	works	dnf										12th
Marian Bien Janusz Wojtyno	works	41st						water pump
Maciej Stawowiak Lech Jawarowicz - Jan Czyżyk	works	dnf						3rd*
Henryk Kaczmarczyk Mieczysław Banaś								dnf
Jerzy Dobrzański Antoni Ryniak								OTL
Andrzej Turczyński Leon Grzybek								dnf
Ryszard Żyszkowski Jerzy Żyszkowski								head gasket
András Tar Ferenc Simon								dnf
Krzysztof Komornicki Błażej Krupa								dnf
Jerzy Landsberg Jacek Różański								dnf
Jan Dziedzic Wiesław Pieprzak								dnf
Włodzimierz Markowski Andrzej Radecki								dnf*
Edmund Oprocha Andrzej Orłowski								dnf*
Marek Varisella Janina Jedynak								oil sump				15th
Jerzy Strasz (1300) Halina Strasz								dnf*
Andrzej Włoch (1300) Marek Roczniak								dnf*

Total points ()	8							8
Statistics
Others starts/finishes	22/6	4/2						15/1				3/3

Racing Cars

Specifications

Results in WRC

Races

Drawings