Renault 11 C375 Turbo group A (1987)
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1984: Renault 11 Turbo
1987: Renault 11 C375 Turbo

Specifications

Group/Class 1987: A/7
1988+:A/8		 Homologation number: A5342
Years active 1987 Homologation start: 1/10/1987
Homologation end: 31/12/1993
Engine
Type Renault Cleon Fonte C1J 760/C1J 764, straight 4 cyl, 4 stroke, petrol engine located front transverse with 12o rear inclination
Capacity 1397.2 cc WRC: x 1.4 = 1956 cc
1988+: x 1.7 = 2375.2 cc
Bore x Stroke (mm) 76.0 x 77.0
Compression ratio 8.2:1
Output power - torgue 185 HP / 6800 rpm 27.0 kgm (265 Nm) / 4800 rpm
Main bearings cast iron crankshaft with 5 main bearings 54.8mm diameter connecting rod distance between centers 128mm, big end bearing tunnel diameter 47.6mm, aluminium alloy piston with 38.2mm compression height
Materials block: cast iron 203.9mm height cylinderhead: reverse flow aluminium alloy with "wedge" shape combustion chambers, 73.5mm height
Cams/valves 1 side camshaft with overhead valves (OHV), pushrods and rocker arms operation, chain driven 2 valves/cyl. - 8 valves total. 34.3mm inlet valve diameter, 29.1mm exhaust valve diameter. 1 coil spring per valve
Aspiration Garrett T2 turbocharger (11 blades heat resistance inox alloy turbine 35.5/47mm in/out diameter, 12 blades aluminium compressor 33.9/48mm in/out diameter) with air/air intercooler, 1 x Solex 32 DIS single barrel carburetor pressure: 0.65-1 bar
Ignition electronic, firing order 1-3-4-2
Cooling system jacketed watercooled with pump, radiator, 10 blades-290mm diameter fan and thermostat 6.9 lt
Lubrication system wet sump with 1 oil cooler 3.7 lt
Transmission
Type front wheel drive Renault JB3, 5 speed manual gearbox
Gearbox ratios 1st: 3.091/1 (34/11)
2nd: 1.842/1 (35/19)
3rd: 1.320/1 (33/25)
4th: 0.967/1 (29/30)
5th: 0.758/1 (25/33)
R: 3.545/1 (39/26 x 26/11)		 1st: 2.636/1 (29/11)
2nd: 1.824/1 (31/17)
3rd: 1.350/1 (27/20)
4th: 1.040/1 (26/25)
5th: 0.897/1 (26/29)
R: 3.545/1 (39/26 x 26/11)
Diffrential ratio 4.067/1 (61/15), 5.083/1 (61/12), 4.917/1, (59/12), 4.750/1 (57/12), 4.385/1 (57/13), 3.714/1 (52/14), 3.313/1 (53/16).
1988+: 4.667/1 (56/12)		 helical gears 45% limited slip ZF differential
Clutch dry, single disc 200mm diameter
Chassis
Type steel monocoque Renault C375 chassis with 15.5/27.5kg AlZn4.5Mg1 aluminium (D40x3.5mm), or 18/26kg aluminium (D40x3mm), or 24.5kg St52 steel (D40x2mm) roll-cage. Front steel subframe. 3 door hatchback steel bodyshell with steel doors and front/rear bonnets, and plastic front/rear bumpers.
1992: cancelled all aluminium roll cages
Front suspension Mac pherson strut with "A" lower wishbone, coil springs, telescopic gas shock absorber and anti-roll bar
Rear suspension trailing arm with torsion bar, telescopic gas shock absorber and anti-roll bar
Steering system rack and pinion without or with AP hydraulic power assistance 19.5/1, 16.5/1, 14.38/1, 15.5/1, 12.75/1, 13.33/1 ratio
Brakes Front ventilated discs 238mm diameter with 1 cast iron/aluminium piston caliper 48mm diameter, rear solid discs 238mm diameter with 1 cast iron/aluminium piston caliper 30mm diameter.
Front ventilated discs 259mm diameter with 1 aluminium piston caliper 54mm diameter, rear solid discs 254mm diameter with 2 aluminium piston calipers 41.3mm diameter.
Front ventilated discs 270/280mm diameter with 4 aluminium piston calipers 41.3mm diameter, or 275mm diameter with 1 aluminium piston caliper 54mm diameter, or 280mm diameter with 1 aluminium piston caliper 60mm diameter, or 270/280/300mm diameter with 4 magnesium/aluminium piston calipers 2x38.1+2x41.3mm pair diameter.
Rear solid discs 254mm diameter with 2 aluminium piston caliper 36mm diameter, or ventilated discs 254mm diameter with 4 aluminium piston calipers 31.7mm diameter		 dual circuit with DBA or Teves vacuum servo, adjustable ratio split front to rear. Air hose for front brakes ventilation
Dimensions
length: 4.051 m (159.5") width: 1.670 m (65.7") height: 1.379 m (54.3")
wheelbase: 2.483 m (97.8") front track: 1.410 m (55.5") rear track: 1.357 m (53.4")
Rims - tires 5.5 - 6" x 14 - 15" Michelin 21/ 59/15
Weight 900 kg
Fuel tank 50 lt

Results in WRC

Statistics

1987 1988 1989 1990 1991 1992 1993 Total
Works
Races /wins 1/(1) 1/(1)
Entries/finishes 2/2 2/2 (100%)
Others
Races/gr A wins (A/7 wins) 3 3 2 2 2 1 12
Entries/finishes 4/2 5/3 5/2 4/0 3/0 1/0 22/7 (31.8%)
Total WRC results
Races/(A/7 wins) 1/(1) 3 3 2 2 2 1 13/(1)
Entries/finishes 2/2 4/2 5/3 5/2 4/0 3/0 1/0 24/9 (37.5%)
Total points 8 10 18
(1.500 per race)
(0.750 per entry)

Races

Works team: Renault Elf Philips

Season

A/7 classification noted in brackets
Entry Rally event
Driver
Codriver		 Team MC SVE
Entry list		 POR KEN TdC GRE Oly (NZ) ARG FIN (CdI) SR RAC
Jean Ragnotti
Pierre Thimonier		 works 3rd (1st)
François Chatriot
Michel Périn		 works 11th (4th)
Total points
()		 8 8
Statistics
Works starts/finishes 2/2 2/2
%252B1987%2B%2BSR%2B%2BJ%2BRAGNOTTI-P%2BTHIMONIER%2B%2BRENAULT%2BR11%2BTURBO.jpg Source

Drawings

renault11turbo18.JPG Source
EL TURBO EN DETALLE 1- Bocina del carburador 2- Carburador Solex. 3- Manguera de paso de aire refrigerado 4- Gases de escape que impulsaran la turbina 5- Accionamiento de la valvula
"waste-gate" 6- Turbocompresor Garrett-T2 7- Aire caliente 8- Manguera de entrada al intercambiador aire-aire. 9- Encendido electronico 10- Disco de freno ventilado delantero 11- Toma de aire 12- Intercambiador de calor aire-aire. 13- Salida de aire refrigerado hacia el carburador 14- Filtro de aire 15- Conducto de aire 16- Sensor que detecta la detonacion pistoneo 17- Intercambiador de calor aceite-aire
JB3.jpg Source
jb3-2.jpg Source
Renault JB3 gearbox
page revision: 79, last edited: 06 Sep 2019 04:17
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