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The Fédération Internationale de l'Automobile (FIA) is a governing body for racing rules. Datsun 1200 Group 1 FIA recognition includes twin-carb engine, rear spoiler, and overfender flares. Covers 2-door Sedan, 4-door Sedan and Coupe, but not van nor pickup.
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History
日本自動車連盟 (Japan Automobile Federation) is the National Sporting Authority of Japan for F.I.A. recognition.
JAF T-139 V1 Recognition: Datsun Sunny 1200 B110 JAF T-139 V2 Added Variant: GX engine JAF T-139 V3 Added Variant: Wheel Spacer JAF T-139 V4 Added Variant: [coupe] Air Spoiler JAF T-139 V5? Added Variant: Over Fender JAF T-139 E-1 Evolution: 1972 model
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B110
PDF Pages 1-14 FIA listing: July 1970 (14 pages) F.I.A. Recognition No. 5356 Group 1 Manufacturing started Nov 1969 5000 identical cars was reached on Feb. 1970.
* Car with no interior heating
* Wheelbase 2300 mm 90.55 in
* f track 1240 mm 48.82 in
* r track 1245 mm 49.02 in
* length 383 cm
* width 149.5 cm
* height 139.0 cm
* fuel tank 10.6 Gallon US
* Weight 635 kg (1399 lbs) with normal equipment, water, oil
and spare wheel but without fuel no repair tools.
* Jack point ground clearance 160 mm
* f seat weight 10 kg each
* f bumper 3.0 kg
* r bumper 3.7 kg
* wheels 12 in x 4 in weight: 4.2 kg
* steering 3.3 turns
Engine * hp 68ps JIS @ 6,000 rpm * max rpm 6,400 rpm (64 ps) * max torque 9.7 kg-m at 3,600 rpm * max speed car 150 km/hour * comb chamber 36.6 cm3 * flywheel weight 9.5 kg * Flywheel with all turning parts 13.1 kg
Camshaft * valves 29 mm 1.14 in * max lift 9 mm 0.35 in * opens BBDC 56 degrees +- 7 degrees * closes ATDC 12 degrees +- 7 degrees * exhaust ports 26w x 28h with 3 mm radius +- 1.5 mm * center ex port 69w x 28h * intake ports 28/27 mm circle
Carburetion * Carb Hitachi DCG306-1 down-draft * Primary: 26 mm, Secondary: 30mm
PDF page 10 Added Coupe and 4-dr sedan * weight 640 kg 1411 lbs
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A12GX engine
PDF pages 21-24 Amendment March 1970 (4 pages) JAF T139V-2 F.I.A. Rec. No. 5356/2/2V
Engine * compression ration 10.0 * combustion chamber 29.1 cm3 * cooling fan diameter 33 cm * valve opens BTDC 20 degrees +- 7 degrees * valve closes ABDC 56 degrees +- 7 degrees * valve opens BBDC 58 degrees +- 7 degrees * valve closes ATDC 18 degrees +- 7 degrees * Carb Hitachi HJE38W side-draft (two carbs), 38 mm bore, 29mm restriction (su) * exhaust ports 27w x 29h ±1.5 mm tolerance* intake ports 30mm x 39mm oval ±1.5 mm tolerance
* hp 83ps @ 6,400 rpm * max rpm 6,800 rpm at that figure 80 * max torque 10.0 kg-m at 4,400 rpm * max speed car 160 km/hour * piston crown [flat] * Exhaust Manifold outlets: 39 mm (±1 mm) X 2 * Inlet & Exhaust cams S = 20.9 mm (0.82") T = 15.0 mm (0.59") U = 30.1 mm (1.18") * Silencer: Muffler and Resonator * Combustion Chamber [peanut-shaped]
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Overfender Flares
PDF pages 15-16 OVER FENDER Added for Group 2 (Not valid for Group 1) Amendment June 1970 (2 pages)
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Wheel Spacer
PDF page 17 February 1971 Amendment (1 page) JAF T-139 V3 F.I.A. Homol. No. 5356 Optional Part Variant Wheel spacer (5 mm) [alloy] Part Number 40209-A0220 [also homologated for KPGC10 Skyline and available in Nismo N10 Catalog]
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Coupe Spoiler
PDF page 18 February 1971 Amendment (1 page) JAF T-139 V4 F.I.A. Homol. No. 5356 Variant Air Spoiler Part Number 02070-00101 Not Valid For Group 1 Only
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1972 Facelift
PDF pages 19-20 Extension 3/1E 02/07/1972 BODYWORK,INTERIOR (2 pages) JAF T-139 E-1 - 31 March 1972 F.I.A. Homol. No. 5356 - amendment application started DEC. 1971 modifications: normal evolution [Covers the 1972 Facelift minor changes] * from chassis B110-341001, engine A12-000001 Stamp and signature of the JAF: Hiroshi Niwayama
[2-door sedan] Photograph A, 3/4 view of car from front [standard version]B, 3/4 view of car from rear
C, Interior view
4 DOOR SEDAN
Photograph A, 3/4 view, front [GL with no hubcaps]
B, 3/4 view, rear [GL with Sports badge]
COUPE MODEL (KB110) Photograph A, 3/4 view, front [GX with no hubcaps]B, 3/4 view, rear [GX]
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1200 Truck Group B
B120 Sunny Truck homologation for Group B racing (1984-1990)
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