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 5-speed transmission. Covers 2-door Sedan, 4-door Sedan and Coupe, but not van nor pickup.
Contents |
B110
PDF Pages 1-14 FIA listing: July 1970 (14 pages) Manufacturing started Nov 1969
* 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
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]
Overfender Flares
PDF pages 15-16 Amendment June 1970 (2 pages)
Wheel Spacer
PDF page 17 February 1971 Amendment (1 page) Optional Part Wheel spacer (5 mm) [alloy] Part Number 40209-A0220 [also homologated for KPGC10 Skyline and available in Nismo N10 Catalog]
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
1972 Facelift
PDF pages 19-20 December 1971 Amendment (2 pages) JAF T-139 E-1 F.I.A. Homol. No. 5356 Normal Evolution [Covers the Facelift changes] * starts with B110-341001