Renault Alpine A110 1.6 group 4 (1970)
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Home » Rally Cars » Renault Alpine A110 1.6
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1970: Renault Alpine A110 1.6
1972: Renault Alpine A110 1.8
1974: Renault Alpine A310
1977: Renault Alpine A310 V6

Chassis registry
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Drifting: see video
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Specifications

Technical info
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Production engines

Group 4 3 3
Homologation number 624 3035 3068
Homologation start 1/1/1970 1/10/1970 1/7/1972 Extension 13/7E, 1/5/1977
Homologation end 31/12/1970 31/12/1979 31/12/1981
Model A110 1600 S VB A110 1600 SC VD A110 1600 SX VH
Engine Type Renault Cléon-Alu A2L 807-24 Renault Cléon-Alu A2L or 844-32 Renault Cleon-Alu A6M 843
Bore x Stroke (mm) 77.0 x 84.0 78.0 x 84.0 79.0 x 84.0
Capacity (cc) 1565 1605 1647
Compression 10.25:1 9.25:1
Valves I42, E35.5 I38.7, E34.5
Aspiration 2 x Weber 45 DCOE 1 x Weber 32 DAR
Power output 125 HP @ 6000 rpm 95 HP @ 6000 rpm
Torque 14.5 kgm @ 4500 rpm 13.2 kgm @ 3000 rpm

Racing engine

Analytical specifications and drawings

Engine
Type Renault Cléon-Alu A2L 807G,straight 4 cyl, 4 stroke, petrol engine located longitudinally behind rear axle
Capacity 1596 cc WRC: 1596 cc
Bore x Stroke (mm) 77.8 x 84.0
Compression ratio 11.5:1
Output power - torgue 155 HP @ 7000 rpm
160 HP @ 7200 rpm
184 Nm (121 ft.lbs) @ 6000 rpm
Main bearings cast iron crankshaft with 5 main bearings 54.8 mm diameter connecting rod length 136.25 mm with 3/8" 8740 bolts, big end bearing dimensions D51.6x25mm, small end bearing D21x22mm. Cast aluminium alloy piston with 46 mm compression height. Piston rings 1,75/2/4mm, Piston pin D21 x 66,50mm.
Materials block: aluminium alloy with 89mm bore spacing. Steel wet cylinder liners (Outside diameter down: 82,50mm. Outside diameter above: 96,0mm. Height totally: 143,50mm) cylinderhead: cross flow cast aluminium alloy with hemispherical combustion chambers
Cams/valves side camshaft with pushrods and overhead valves (OHV), rocker arms and tappets, chain driven 2 valves/cyl. - 8 valves total. 42 inlet valve diameter, 35.5mm exhaust valve diameter. 2 coil springs per inlet valve, 1 coil spring per exhaust valve
Aspiration natural, 2 x Weber 45 DCOE carburetors
Ignition electronic with Champion N57R spark plugs, firing order 1-3-4-2
Cooling system jacketed watercooled with pump, radiator, 2x150 mm diameter-7 blades fan and thermostat 10 lt
Lubrication system wet sump 4 lt

Other specs

Transmission
Type rear wheel drive Alpine 364, 5 speed manual gearbox
Gearbox ratios 1st: 3.61/1 (47/13)
2nd: 2.37/1 (45/19)
3rd: 1.70/1 (39/23)
4th: 1.30/1 (35/27)
5th: 1.03/1 (32/31)
R: 3.08/1 (40/13)
1st: 3.61/1 (47/13)
2nd: 2.50/1 (45/18)
3rd: 1.91/1 (42/22)
4th: 1.48/1 (37/23)
5th: 1.14/1 (33/29)
R: 3.08/1 (40/13)
1973: 1st: 3.61/1 (47/13)
2nd: 2.33/1 (42/18)
3rd: 1.61/1 (37/23)
4th: 1.21/1 (34/28)
5th: 0.967/1 (30/31)
R: 3.08/1 (37/12)
1973: 1st: 3.07/1 (43/14)
2nd: 2.25/1 (36/16)
3rd: 1.68/1 (37/22)
4th: 1.30/1 (35/27)
5th: 1.03/1 (32/31)
R: 3.08/1 (37/12)
1976: 1st: 3.82/1 (42/11)
2nd: 2.24/1 (38/17)
3rd: 1.48/1 (34/23)
4th: 1.04/1 (29/28)
5th: 0.86/1 (31/36)
R: 3.50/1 (42/12)
Diffrential ratio 3.778/1 (34/9), 4.125/1 (33/8), 3.56/1 (32/9), 3.37/1 (27/8),
1971: 3.09/1 (34/11)
1976: 3.875/1 (31/8)
Hewland spiral bevel gears limited slip rear differential
Clutch dry single plate 215 mm disc diameter, 1971 group 4: single plate 200 mm diameter
1975 group 4: double plate 186 mm diameter
Chassis-body
Type steel central-tube backbone Alpine Type VB chassis with front and rear subframes. 2 door coupe fiberglass bodyshell. Group 4: extended wheel arches
Front suspension double Wishbones with Coil Springs, Dampers, Anti-Roll Bar. Geometry
Rear suspension Renault Swing Axles with longitudinal Radius Arms, Coil Springs, Dampers, Anti-Roll Bar
Steering system rack and pinion (no servo) 3.2 (17.1/1 ) turns lock to lock. Quick rack = 2.5 turns, 13.5/1
Brakes front solid disks with 261mm disk diameter and 1 piston caliper 38 mm piston diameter. Rear solid disks with 261mm disk diameter with 1 piston caliper 32 mm piston diameter.
Group 4: front solid discs 254 mm diameter with 1 piston caliper 48 mm piston diameter. Rear solid discs 250 mm diameter with 1 piston caliper 45 mm diameter
dual circuit with servo, adjustable ratio split front to rear
Dimensions
length: 3845 mm (151.4") width: 1520 mm (59.8"), group 4: +100 mm height: 1120 mm (44.1")
wheelbase: 2100 mm (82.7") front track: 1358 mm (53.5") rear track: 1337 mm (52.6")
Rims - tires 5J or 5.5J or 6J x 13". 4 x D140 mm bolt pattern 165/70 x 13", Michelin SB9, front 21 x 13" or 175/60R13 72V, rear 25 x 13" or 225/45R 13 77V
Weight 650 - 750 kg 36% - 64% f/r distribution
Fuel tank 38 or 50 lt front, 79 lt rear, 1974, 844G: 98 lt

Results in WSCC

Season
Group 3
Car entry, chassis number Car number/ result
Dayt Sebring Brands Hatch Monza Targa Florio Spa Nurb Le Man Watkins Glen Zeltweg
Team 24h 12h 1000km 1000km 1000km 1000km 24h 6h 1000km
Bernard Collomb/ Pierre Agostini #91, dnt qualify #99, in entry list
Michel Vial/ Jean-Louis Marnat #92, dnt qualify
Statistics
Starts/finishes 2/0 2/0

Results in WRC

Races

Works team: Alpine Renault

Season
Entry Rally event
Driver
Codriver
Team M.C SVE
Entry list
S.R KEN A GRE RAC
entry list
Jean Vinatier
Jean-François Jacob/ Marcel Callewaert
works acci dent stuck in snow
Jean Vinatier
Jean-François Jacob
16660
works 3rd
Jean Vinatier
David Stone
16767
works 2nd
Jean-Claude Andruet
Patrice Écot
works excl uded
Jean-Pierre Nicolas (1296)
Claude Roure/ Michèle Veron
works 3rd trans mission 5th
Jean-Pierre Nicolas
Claude Roure/ David Stone
works eng ine fire
Jean-Luc Thérier (1296)
Marcel Callewaert
works transm ission
Jean-Luc Thérier
Marcel Callewaert
works 1st gear box 1st drive shaft
Bernard Darniche
Alain Mahé
works 5th
Andrew Cowan
Hamish Cardno
works 5th
Ove Andersson
Elizabeth Andersson
works acci dent
Roland Charrière
Yannick Castel
9th
Jorma Lusenius
Seppo Halme
clutch
Walter Roser
Werner Pucher
Bosch Racing Team Wien acci dent
George Kritikos
Kostas Mexis
dnf
Nigel Hollier
Philip Short
trans miss ion
Total points
()
57 2 18 6 25 6
Statistics
Others starts/finishes 21/8 3/2 3/0 3/1 3/1 4/3 5/1

Article from 4T 497, 2/2012

Original article

560DK20MANZAGOL31TdeCORSE1970.jpg Source
Mangazol in Tour de Corse 1970
alpine_a110_michelle_mouton.jpg Source
Michele Mouton

Drawings

a110-1565.jpg Source
renault-alpine-a110-monte-carlo-71.gif Source
AlpineA110a%20sf.jpg Source
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