Edellinen

 

 

 

TECHNICAL INFORMATION OF FIAT 131 ABARTH STRADALE, STREET VERSION

 

 

Published at Geneva Motor show, march 1976, four seater 2d saloon. 75% of parts are same as in other production models.

Price in Italy at 1976 9.086.000 lires (2d 131 with 1,3 engine was 2.296.000 lires)

Made only from late 1975 to early 1976, Volumex version also in -80.. (?).

  • -76   400 (408?) Abarths were made. Fiberglass parts were made and fit to body by Bertone. After that body went to Fiat factory (Rivalta). 350 (358?) were sold by Italian Fiat dealers, 50 (58?) were given to Abarth for competition use.
  • -78   they planned to make 5000 because of g.1 rally regulations,  this never happened
  • Volumex versions with Bertone body about 20 (?)

 

 

  • 0 - 100 km/h 8,2s
  • top speed 191-200km/h (varies between sources)
  • 0-400m (1/4 mile) 15,3 s
  • 0-1000m 28,66-29,4 s (varies between sources)
  • weight 980kg (fully laden)
  • front track 1460mm, rear 1456mm, wheel base 2490mm
  • height 1385mm, width 1720mm, length 4190mm

 

Body 

type 131 AR

designed by Bertone

all visible to outside is made of fiberglass, except roof, doors and area between rear lights.

It had rpm gauge, clock and adjustable steering wheel.

 

 

Engine 

type 131 AR.000

1995cc 84mm bore, 90mm stroke, cast iron block, pistons had little dome for CR

compression ratio 10,3-1

16 valve aluminum head, valves in 46 deg (ex 22deg, in 24deg)

  •  34,5 mm inlet valve
  •  28,5 mm exhaust valve
  • lift 9,9 mm
  • inlet port dia. 25mm
  • exhaust port dia. 23 mm

output 140 bhp/din at 6400rpm, torque 17,5 kg/din at 3600rpm

one Weber 34 ADF 8/200 carburetor (34/34)

no oil cooler, wet sump

Alternator  124-12 V-44 A (Bosch, El-Mot, Fimm)

Regulator Bosch AD 1/14 V, Fimm RC 2/12 D

Battery 55 Ah

Oilvolume 4 litres, (forexample Oliofiat10w-30 or 20w-40)

Sparkplugs, Champion N6Y

4-1 exhaust with 49mm pipe, two silencers

(there was also late version of mechanically compressed Volumex abarth, if you have more info of that let me know)

 

Kuniyuki Hishinuma´s 131 has double carbs

 

 

Transmission

Gearbox was dogclutch five speed. It didnt have synchros at all, that was because of homologation reasons.

Clutch 229mm

5-speed Fiat

ratios 

1. 3,612

2. 2,045

3. 1,357

4. 1,000

5. 0,870

R. 3,244

Final drive 3,9 (39/10). ZF limited slip was optional.

 

Suspension

 

Front; Independent wishbones, torque reaction arms, anti rollbar, McPherson type absorber/spring

Rear;  Independent, trailing arms, antirollbar, coil springs, McPherson type absorber/spring. Fiat tested also DeDion type rear axle, but noticed it terrible!

Wheels alloy Chromodora 15x7" , Pirelli P7 195/50 VR 15 tires

In one article reporter said that anti rollbars are adjustable in street version too. Is that so?

 

 

Steering 

turning circle 10,6 m, steering wheel turns 3,4 rounds

 

 

Brakes 

4 x discs, mechanical handbrake

Front caliber with one 48mm piston, disc dia. 227mm

Rear caliber with one 34mm piston, disc dia 227mm