Nissan Fairlady S30 260Z group 4 (1974)
 Source |
Develpment chain 1970: Nissan Fairlady S30 240Z 1974: Nissan Fairlady S30 260Z 1982: Nissan Silvia S110 1983: Nissan Silvia BS110 240RS 1985: Nissan Silvia BS110 240RS-2 |
Also called Datsun 260Z
Specifications
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| Group/Class | 4/4 | Homologation number: 3023, 15/2E, and 3072 | ||
| Years active | 1974 - 1975 | Homologation start: 1/3/1974 and 1/10/1975 Homologation end: 31/12/1981 |
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| Engine | ||||
|---|---|---|---|---|
| Type | Nissan L26, straight 6cyl, 4 stroke, petrol engine | located front longitudinal | ||
| Capacity | 2565 cc | WRC: 2565 cc | ||
| Bore x Stroke (mm) | 83.0 x 79.0 | |||
| Compression ratio | 8.3:1, group 4: 11.0:1 | |||
| Output power - torgue | 160 HP @ 5400 rpm 260 HP @ 6500 rpm |
23.0 kgm @ 4400 rpm 32.6 kgm (320 Nm) @ 5000 rpm |
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| Main bearings | 7 of 55 mm diameter | connecting rod length between centers 133mm, big end bearing internal diameter 50mm. Cast aluminium alloy piston with 38 mm compression height | ||
| Materials | block: cast iron, 207.85mm deck height (265.9mm from top to bottom oil pan), bore spacing 96.5mm between cylinders 1-2, 2-3, 4-5 and 5-6, and 98mm between cylinders 3-4 | cylinderhead: cast aluminium alloy | ||
| Cams/valves | single overhead camshaft (SOHC), chain driven | 2 valves/cyl. - 12 valves total. 42mm inlet valve diameter, 35mm exhaust valve diameter. 2 coil springs per inlet/exhaust valve | ||
| Aspiration | natural, 2 x Hitachi HMB46W, group 4: 3 x Solex-Mikuni 44PHH | |||
| Ignition | Luminition electronic, firing order 1-5-3-6-2-4 | |||
| Cooling system | jacketed watercooled with pump, radiator, 410 mm diameter-8 blades fan and thermostat | 9.4 lt | ||
| Lubrication system | wet sump, or dry sump | 4.7 lt | ||
| Transmission | ||||
| Type | rear wheel drive | Nissan FS5C71B 5 speed gearbox. 71mm distance between shafts | ||
| Gearbox ratios | constant: 1.409/1 (31/22) 1st: 3.32/1 (33/14) 2nd: 2.08/1 (27/20) 3rd: 1.31/1 (29/28) 4th: 1.00/1 5th: 0.86/1 (19/31) R: 3.38/1 (36/23x 23/15) |
constant: 1.409/1 (31/22) 1st: 2.82/1 (32/16) 2nd: 1.97/1 (28/20) 3rd: 1.47/1 (24/23) 4th: 1.19/1 (22/26) 5th: 1.000/1 R: 3.38/1 (36/23 x 23/15) |
constant: 1.524/1 (32/21) 1st: 3.59/1 (33/14) 2nd: 2.25/1 (28/19) 3rd: 1.41/1 (26/28) 4th: 1.000/1 R: 3.66/1 (36/23 x 23/15) |
group 4: constant: 1.409/1 (31/22) 1st: 3.32/1 (33/14) 2nd: 2.27/1 (29/18) 3rd: 1.60/1 (25/22) 4th: 1.24/1 (22/25) 5th: 1.000/1 R: 3.38/1 (36/23 x 23/15) |
| Diffrential ratio | 3.364/1 (37/11), 3.90/1 (39/10), group 4: 4.111/1 (37/9), 4.375/1 (35/8), 4.625/1 (37/8), 4.875/1 (39/8), 5.125/1 (41/8) |
R180 or later R200 hypoid spiral bevel gears friction limited slip rear differential | ||
| Clutch | dry single plate 225 mm diameter, group 4: double plate 186 mm disc diameter | |||
| Chassis-body | ||||
| Type | steel monocoque short wheel base Nissan R(L)S30 or long wheel base GR(L)S30 chassis with roll cage and front suspension subframe. 2 door coupe steel bodyshell with steel bumbers and fibre glass bonnet or boot lid and rear spoiler. Group 4: extended wheel arches | |||
| Front suspension | mc pherson strut with lower wishbone, coil spring, telescopic shock absorber and anti-roll bar | |||
| Rear suspension | chapman strut with lower wishbone, coil spring, telescopic shock absorber and anti-roll bar | |||
| Steering system | rack and pinion (no servo) | 2.7 turns lock to lock | ||
| Brakes | front solid disks with 269/271mm disk diameter and 2 piston calipers 54 mm piston diameter, or front ventilated disc group 4: 276/298 mm disc diameter with 4 piston calipers with 41.3 mm piston diameter. Rear drums 229mm diameter with 1 dual piston caliper 22.2 mm piston diameter |
dual circuit with servo, adjustable ratio split front to rear | ||
| Dimensions | ||||
| length: 4.115 m (162") GR: 4.425 m (174.2") |
width: 1.630 m (64.2"), group 4: +100 mm | height: 1.290 m (50.8") | ||
| wheelbase: 2.305 m (90.7") GR: 2.605 m (102.5") |
front track: 1.355 m (53.3") | rear track: 1.345 m (53.0") | ||
| Rims - tires | 5 - 5.5 - 7 - 8 - 10 x 14" - 15" | FR70-14, 175/70-14 | ||
| Weight | 930 kg, GR: 1110 kg | |||
| Fuel tank | 65 lt, group 4: 100 lt | |||
| constant: 1.217/1 (28/23) 1st: 2.678/1 (33/15) 2nd: 1.704/1 (28/20) 3rd: 1.262/1 (28/27) 4th: 1.000/1 5th: 0.852/1 (21/30) R: 2.922/1 (36/17 x 17/15) |
constant: 1.217/1 (28/23) 1st: 2.957/1 (34/14) 2nd: 1.858/1 (29/19) 3rd: 1.311/1 (28/26) 4th: 1.000/1 5th: 0.852/1 (21/30) R: 2.922/1 (36/17 x 17/15) |
constant: 1.217/1 (28/23) 1st: 1.858/1 (29/19) 2nd: 1.383/1 (25/22) 3rd: 1.217/1 (27/27) 4th: 1.000/1 5th: 0.852/1 (21/30) R: 2.922/1 (36/17 x 17/15) |
Results in WRC
Races
Works team: Nissan Motor Co
Season
| Entry | Rally event | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Driver Codriver |
Team | POR | KEN | FIN | S.R | R.L | P.R | RAC | TdC | ||||||
| Ingvar Carlsson Sölve Andreasson |
works | eng ine | |||||||||||||
| Harry Källström Claes Billstam |
works | 5th | 4th | ||||||||||||
| Mario Figueiredo | dnf | ||||||||||||||
| Zully Remtulla Nizar Jivani |
works | 5th | |||||||||||||
| John Smiskol Carol Smiskol |
8th | ||||||||||||||
| Kevin Videan Peter Valentine |
Old Woking Service Station | dnf | |||||||||||||
| Total points () |
22 | 6 | 13 | 3 | |||||||||||
| Statistics | |||||||||||||||
| Others starts/finishes | 7/4 | 3/1 | 2/2 | 1/1 | 1/0 | ||||||||||
Drawings
Source
Rear suspension
Source
Source
page revision: 44, last edited: 15 Oct 2019 07:51