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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
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