Home » Rally Cars » Renault 12 Gordini R1173
SourceSpecifications
5188 units built
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Group/Class | 2 | Homologation number: 630 and 1633 | ||
Years active | 1972-1976 | Homologation start: 1/10/1971 and 1/1/1972 Homologation end: 1/1/1972 and 31/12/1978 |
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Engine | ||||
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Type | Renault Cleon-Alu type A2L 807-20, straight 4 cyl, 4 stroke, petrol engine | located front longitudinal, overhang front | ||
Capacity | 1565 cc | WRC: 1565 cc | ||
Bore x Stroke (mm) | 77.0 x 84.0 | |||
Compression ratio | 10.25:1 | |||
Output power - torgue | 115 HP @ 6000 rpm 125 HP @ 6250 rpm |
14.4 kgm @ 5000 rpm 150 Nm @ 4500 rpm |
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Main bearings | 5 of 54.8mm diameter, 48mm big end journals diameter | connecting rod length 136.25 mm with 3/8" 8740 bolts, big end bearing dimensions D51.6x25mm, small end bearing D20x22mm. Cast aluminium alloy piston with 46 mm compression height. Piston rings 1,75/2/4mm, Piston pin D20 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 overhead valves (OHV), chain driven | 2 valves / cyl - 8 valves total, 42.1 mm inlet valve diameter, 35.35 mm exhaust valve diameter. 2 coil springs per valve | ||
Aspiration | natural, with 2 x Weber 45 DCOE 38/39 carburetors | |||
Ignition | ignition bobine / distributor, alternator 12 V, Firing order 1-3-4-2 | |||
Cooling system | jacketed watercooled with pump, radiator, 304 mm diameter-10 blades fan and thermostat | 5.7 lt water capacity | ||
Lubrication system | wet sump | 4.8 lt oil capacity | ||
Transmission | ||||
Type | front wheel drive | Renault Type: 365.05, 5 speed manual gearbox | ||
Gearbox ratios | 1st: 3.61/1 (47/13) 2nd: 2.35/1 (42/18) 3rd: 1.61/1 (37/23) 4th: 1.21/1 (34/28) 5th: 0.93/1 (29/31) R: 3.08/1 (37/12) |
1st: 3.07/1 (43/14) 2nd: 2.23/1 (38/17) 3rd: 1.68/1 (37/22) 4th: 1.29/1 (35/27) 5th: 1.03/1 (32/31) R: 3.08/1 (37/12) |
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Diffrential ratio | 3.77 (34/9), 4,125 (33/8) | Hewland spiral bevel gear limited slip front differential | ||
Clutch | Single dry plate Clutch diaphragm spring type. Friction disc with torsion hub damper. Ball bearing thrust. Diameter 145 inner, 215 outer. 200mm outer plate diameter | |||
Chassis-body | ||||
Type | steel monocoque chassis with roll-cage. 4 door salon bodyshell with steel front and rear bumbers, group 2: extended wheel arches | |||
Front suspension | lower triangular wishbone with one (1) upper transverse arm and one (i) upper 45o stabilizing-link. Coil springs, telescopic hydraulic shock absorbers, Φ24mm anti-roll bar | |||
Rear suspension | Pressed steel dead axle with 2 longitudinal (trailing) rods, one (1) upper center triangular wishbone, coil springs. Hydraulic shock absorbers. Anti-roll bars | |||
Steering system | rack and pinion (no servo) | 2.2 or 2.5 turns lock to lock | ||
Brakes | front ventilated discs 228mm diameter with 1 piston caliper 54mm piston diameter, rear solid discs 228mm diameter with 1 piston caliper 36/45mm piston diameter | dual circuit with vacuum servo | ||
Dimensions | ||||
length: 4.300 m (169.3") | width: 1.636 m (64.4"), group 2: +100mm | height: 1.340 m (52.8") | ||
wheelbase: 2440 mm (96.1") | front track: 1340 mm (52.8") | rear track: 1335 mm (52.6") | ||
Rims - tires | 5.5J x 13" | 155 HR 13" | ||
Weight | 870 kg | f/r distribution 58.2 - 41.8 % | ||
Fuel tank | 90 lt |
Results in WRC
Entry | Rally event | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Driver Codriver |
Team | M.C | SVE | KEN | MAR | GRE | A | S.R | USA | RAC Entry list |
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J.P. Gailiardon Pousse - P. Thimonier |
dnf | dnf | |||||||||||||
Jovica Palikovic Sasa Svarcer |
dnf | ||||||||||||||
Felix Capra Michel Peyret |
Ecurie Monaco | dnf+ | |||||||||||||
Alain Calais Jean-Claude Silani |
dnf | ||||||||||||||
Dahms Mme Dahms |
dnf+ | ||||||||||||||
Ove Andersson John Davenport |
15th* | ||||||||||||||
Jean-Luc Thérier Claude Roure |
oil pump* | ||||||||||||||
Jean-Marie Jacquemin Jacques Jaubert |
dnf | ||||||||||||||
Wolfram Isopp Werner Pucher |
Bosch Racing Team | 12th | |||||||||||||
G. Pfisterer F. Ritter |
dnf | ||||||||||||||
A. Coppier | dnf | ||||||||||||||
John Smith Robert Clayton |
dnf | ||||||||||||||
Keith Leckie Peter Robinson |
? | ||||||||||||||
Statistics | |||||||||||||||
Others starts/finishes | 14/2 | 5/0 | 2/1 | 1/0 | 4/1 | 1/0 | 1/0 |
*Group 1 entries
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Drawings
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Suspension
Engine specs (low compression)
ENGINE (807‑03; auto., 807‑05)
1. Type … … … 4 stroke; double‑row, inclined O.H.V.; side camshaft
2. Cooling system Water pump, radiator (9.25lb./in.sq), fan and thermostat (82°C.).
2a. Sealed system; clean and refill every 27,000 miles or 3 years
3. Number of cylinders … 4 (wet liners)
4. Firing order and idling 1‑3‑4‑2 (No. 1 by flywheel);
4a. Speed and R p m 625/675(auto., 600/650 r.p.m.)
5. Bore … … … 77mm. (3.031in.)
6. Stroke … … … 84mm. (3.307in.)
7. Cubic capacity … … 1565c.c.
8. Compression ratio … 8.6:1
9. Brakehone‑power (S.A.E.) 87.5 at 5,750 r.p.m.
10. Torque (S.A.E.) … 90lb.ft. at 3/4,000 r.p.m.
11. Piston oversizes … … Matched piston and liner sets
12. Piston clearance Matched piston and liner sets
13. Piston rings 2 Compression 1 Oil (Uflex)
14. Piston rings‑width Firing, 1.75mm.; comp., 2mm.; oil,4mm.
15. Piston rings ‑‑‑ groove cl'nee Comp., .050 to .075mm.; oil, .015 to.060mm.
16. Piston rings‑gap (in bore) 0.25 to 0.40mm.
17. Oil pressure (lb./sq.in.) 28 to 32 at 650 r.p.m.; 57 to 77 at 4,000 r p.m
18. Gudgeon pin diameter … 20mm
21. Crankpin diameter … 48mm:
22. Crankpin undersize … 47.75mm.
23. Connecting rod length … 136.25mm. (centres)
24. Big‑end hearings … Alunninium‑tin, thin shell
27. Main journal diameter … 54.8mm.
28. Main journal undenize … 54.55mm.
29. Main bearings … … 5; alunninium‑tin, thin shell
30. Main bearing length … 20.4mm
31 Main bearing clearance … .038 to .079mm.
32 Crankshaft end‑float … 0. 05 to 0. 23mm
33. Crankshaft end‑thrust on Centre main bearing
34. Camshaftjournal diameter 42mm
35. Camshaft bearings … 4; direct in block
36. Camshaft bearing cl'nce… .025 to .075mm.
37. Camshaft end‑float … 0. 05 to 0. 12mm
38. Camshaft drive type … Chain, 72x9.525mm.pitches;width,5.72mm.
39. Valve head diameter … Inlet, 40mm; exhaust, 35mm
40. Valve stem diameter … 8mm., inlet and exhaust
41. Valve seat angle ‑‑‑45°
42. Valve lift … … 8.69mm, inlet and exhaust
43. Valve guide length … 50mm (fitted height, 9mm. above head)
44. Valve stem/guide cl'nee … Inlet :025 to .045mm.; exhaust, .040 to .060mm.
45. Valve spring free length … Inner, 46.8mm.; outer, 54.3mm.
46. Valve spring rate … … Inner, 24.5mm. at35lb.;outer,30.5mm. at 114lb.
47. Valve working clearance Inlet, .008in.; Exh, .010in. (cold)
49. Valve timing Inlet opens 21° B.T.D.C.;Exh 59° A.B.D.C.
49a. Exh 59° B.B.D.C.;closes 21° A.T.D.C.
50. Petrol pump … A.C. mechanical
51. Carburettor … Weber 32DAR‑6 (auto., 32DIR22)
51a. Primary Secondary
52. Choke tube … 24 26
53. Main jet … … ‑‑‑ 145(auto.140) 150
54. Compensating jet … 180 (auto.190) 140
55. Slow‑running jet 50 80
62. Needle valve 1. 75mm,
ELECTRICAL SYSTEM
601. Ignition timing (static) … 0°± 1° (auto., 6°± l° B.T.D.C.); marks
601a. [Also strob., vac. off] on flywheel and housing
602. Sparking plugs … A.C. 44XL, Marchal 35HS or Champion
603. Sparking plug gap … 0.6mm. (.024in.) IN3
604. Distributor … Ducellier R243/D59; auto., R266/D59
605. Contact breaker gap 0,4 to 0.5mm. (.016 to .020in.); dwell angle 57°±3°
606. Centrif. advance starts at 450 r.p.m.; 7° at 700 r.p.m.
607. Centrif. advance‑max…. 18° at 2500 r.p.m.; auto., 16.5° at 2250
608. Vacuum advance starts at 75mm. (2.95in.) Hg.; 50 at 200mm. (7.9in.)
609. Vacuum advance max 7° at 365mm. (14.4in.) Hg.
609a. (Distributor degrees and r.p.m.)
610. Ignition coil … … Ducellier, type 2765A
611. Battery … … 12v. 40a.h.; Fulmen, AS810
612. Battery earth … … Negative
613. Alternator … … S.E.V.; type A12130; max. output 30amp.
614. Control box … … S.E.V., regulated between 13.8114.8v.
615. Starter motor … … Paris‑Rhone, type D8E84. Lock torque
CAPACITIES
701. Engine sump … … 7 pints (7.5 when filter changed)
TORQUE SPANNER DATA (lb.ft.)
901. Cylinder head nuts (cold) 55/60
902. Big‑end bearing nuts … 30
903. Main bearing nuts … 45
905. Flywheel bolts … … 40 (auto drive plate, 22/26)