Nissan Silvia 240RS + Homologation Version

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NISSAN 240RS (BS110)

The 240RS is a direct evolution of the Datsun Violet GTS (which was originally aimed at the Group 4 rules). In fact, you could consider the 240RS as being a Group B version of the Violet GTS as both cars are nearly identical. However, the 240RS featured prominent squared fender flares, a wider track, and a slightly more powerful normally aspirated engine.

This rear wheel drive rally car made up for its lack of outright speed with unsurpassed ruggedness and production car reliability, making it a natural contender in tough endurance events like the Rallye Côte-d’Ivoire and the Safari Rally. However, after the introduction of its Japanese cousin the Toyota Celica TCT, which was as equally rugged but much more powerful, the 240RS had a harder time imposing itself.

Nissan knew that it would never be competitive against the turbo four wheel drive monsters, so they only mildly upped the ante for 1985 with a modest evolution model, boasting 37 more HP and a new rack and pinion steering system. These minimal changes did not require a new homologation run.

SPECIFICATIONS

Group/Class B/12 Homologation number: B-233 (click to see papers)
Years active
  • 1983~1986
  • EVO: 1985~1986
Homologation

  • start: January 1st 1983
  • end: December 31st 1989
Engine
Type FJ24, I-4, DOHC 16v, gas located front longitudinal
Displacement 2340 cc WRC: 2340 cc
Compression ratio
  • 11.0:1
  • EVO: 12.0:1
Output power – torque
  • 240 HP@ 7200 rpm
  • EVO: 277 HP@ 8000 rpm
  • 173 lb-ft (235 Nm) @ 6000 rpm
  • EVO: 195 lb-ft (265 Nm) @ 6200 rpm
Materials block: cast iron cylinder head: aluminium
Aspiration
  • natural / normal
  • 2 x 50 mm Solex PPH side draft carburetors
Ignition electronic, firing order 1-3-4-2
Cooling system water-cooled
Lubrication system dry sump
Transmission
Type rear wheel drive 5 speed gearbox
Gearbox ratios 1st: 2.818/1
2nd: 1.973/1
3rd: 1.470/1
4th: 1.192/1
5th: 1.000/1
Differential ratio 4.625/1 hypoid bevel gears, 75% limited slip rear differential
Clutch dry, single disc
Chassis-body
Type Steel monocoque BS110 chassis with roll-cage, 2 door saloon/coupe body with Plastic Panels
Front suspension McPherson struts with lower wishbones, coil springs, telescopic gas shock absorbers and antiroll bar
Rear suspension Live axle with four links, coil springs and telescopic gas shock absorbers
Steering system
  • worm screw
  • EVO: rack and pinion
Brakes front and rear ventilated disks dual circuit with servo
Dimensions
length: 4300 mm (169.3 in) width: 1800 mm (70.9 in) height: 1310 mm (51.6 in)
wheelbase: 2400 mm (94.5 in) front track: 1410 mm (55.5 in) rear track: 1395 mm (54.9 in)
Rims – tires 6″ x 14″ Dunlop 215/60-14
Dry/Unladen Weight 970 kg (2140 lbs)
Weight/power
  • 4.0 kg/HP (8.8 lb/HP)
  • EVO: 3.5 kg/HP (7.7 lb/HP)
Fuel tank

 HOMOLOGATION VERSION

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NISSAN Silvia 240RS (S110) – Road Car

The Silvia itself was a mainstream production model but Nissan decided to homologate its new rally car with a special modified version: the iconic square fender-flared 240RS. Produced at 200 units, it was a no-nonsense rugged design that could be very easily modified for official rally duty, and bring production car reliability to the game.

SPECIFICATIONS

Class Compact 2 door Sedan (RWD)
Production 1982 (200) Assembly: N/A
Engine
Type FJ24, I-4, DOHC 16v, gas located front longitudinal
Displacement 2340 cc
Compression ratio 11.5:1
Output power – torque 237 HP@ 7200 rpm 177 lb-ft (240 Nm) @ 6000 rpm
Materials block: cast iron cylinder head: aluminum
Aspiration
  • natural / normal
  • twin carburetors
Ignition electronic, firing order 1-3-4-2
Cooling system water-cooled
Lubrication system N/A
Transmission
Type rear wheel drive 5 speed gearbox
Gearbox ratios 1st: 2.818/1
2nd: 1.973/1
3rd: 1.470/1
4th: 1.192/1
5th: 1.000/1
Differential ratio 4.625/1 limited slip rear differential
Chassis-body
Type Steel monocoque BS110 chassis, 2 door sedan body with Plastic Panels
Front suspension McPherson struts with lower wishbones, coil springs, telescopic gas shock absorbers and antiroll bar
Rear suspension Live axle with four links, coil springs and telescopic gas shock absorbers
Steering system worm screw
Brakes front and rear ventilated rotors
Dimensions
length: 4300 mm (169.3 in) width: 1800 mm (70.9 in) height: 1310 mm (51.6 in)
wheelbase: 2400 mm (94.5 in) front track: 1410 mm (55.5 in) rear track: 1395 mm (54.9 in)
Rims – tires 6″ x 14″
Curb Weight 980 kg (2160 lbs)
Weight/power 4.1 kg/HP (9.1 lb/HP)
Fuel tank

GALLERY & VIDEOS

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