Alex' X1-9 Page
  
Dallara

Technical data of the X1/9 Dallara

Debut: Paris Motor Show 1975
Group 5 prototype (silhouette)
cars produced: 30; serial numbers from 1 to 30, plaque in the engine compartment
weight: 690 kg

Engline:

Capacity: 1290 ccm (from '73 to '75) / 1580 ccm (until 75)
Bore x stroke: 1300: 86 x 55,5 mm; 1600: 86 x 68 mm
max. power (1978): 210,2 hp at 8300 rpm (1600 ccm)
[further indication: 192 hp at 9700 rpm (1600ccm)]
max. torque: 26,2 mkg from 7200 to 7500 U/min
Compression ration: 11:1
Cylinder head: 16V Dallara, aluminium alloy (sand cast), 2 overhead cam shafts, inlet cam driven by toothed belt, outlet cam driven by gear
Injection: Kugelfischer, mechanical; on the left side at the end of the rear cam shaft; fuel tank in front, with centric bulkhead; contents 14 litres for uphill races
Lubrication: Dry sump, oil reservoir in the rear trunk; 2-step single pump, on the right end of the dry sump
Cooling system: Radiator in front, water/oil combination, 2 fans
Exhaust system: 4-in-1 header



Dallara 1600 ccm 16V

Gearbox:


5-speed Colotti, limited slip differential; 2 disc clutch

Suspension:

front: McPherson, long lower control arms with push rods; sway bar
rear: McPherson, two long wishbones per side with push rods; sway bar


Brakes:

2 brake cylinders, braking bias adjustable front/rear;
4-piston-calipers (Lockheed),  ventilated brake discs; light alloy hubs

Chassis:

- outside fiberglass, only inner structure remains steel; floor in aluminium
- roll cage for reinforcement and safety
- hoods front and rear  fiberglass


- opening headlights removed, headlights integrated in front

- fixed top
- 2 different fiberglass bodies, one like the car of Jean-Yves Roussel (No. 11) with wide rear wing and small round tail lights; other variation like the car of Macaluso, with small rear wing and stock tail lights; this version is more commonly known.

           

Wheels:

- front 9 x 13 ET 5 Michelin SB 10 (slick) and PB 15 (rain), 21/50-13 (240 x 13)
  SB 10 and 16/53-13 (200 x 13) PB 15 or 9,5/20,0 - 13 Goodyear
- rear 11 x 13, ET 6 Michelin SB 10 (slick) and PB 15 (rain), 24/50-13 (270 x 13)
  SB 10 and 18/53-13 (260 x 13) PB 15 or 11.0/20,5 - 13 Goodyear

  Copyright 2004 - Alexander Kartschall