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280ZX TECHNICAL SPECIFICATIONS

UPDATED 8/6/04

Cut away drawing of the 280Zx Targa 2str

Introduced in 1978, the 280ZX was the first completely new Z car since the 240Z nine years earlier. The 280ZX was designed as a car for the 1980's, the primary concerns in it's design where speed, comfort, and efficiency. To achieve high speeds with less pollution and wastage than pervious models, more efficient methods and materials where introduced. Also, by 1978 the public expected a much higher degree of comfort and convenience in their cars. Therefore, the 280ZX was the first of the Zs to tend towards luxury, unlike it's Spartan predecessors.
The X was introduced to the name in order to differentiate the new car from the 280Z, basically a 260Z with a fuel injected L28 engine sold only in the US.

The 280ZX fuel injected L28E engine.
It was available in a wide range of colors, with an even wider range of interior colors (making it harder to find replacement interior panels!) Although a new and modern design, the 280 used traditional Z styling cues, such as the recessed circular head lights, stacked tail lights, and hatchback GT body style, while introducing the Targa roof, soon to become a new Z tradition.
2str
2+2
DIMENSION:
Overall length:
4.340mm (4,420mm with over rider)
4540mm (4620mm with over rider)
Overall width:
1690mm
1690mm
Overall height:
1290mm
1300mm
Length X width
7.33 square meters
7.67 square meters
Wheelbase:
2,320mm
2,520mm
Tread (front)
1,385mm (1,395 with 6JJ-14 aluminum wheels)
Tread (rear)
1,380mm (1390mm with 6JJ-14 aluminum wheels)
Min. road clearance:
145mm
Over hang (front)
980mm (1,000mm with over rider)
Over hang (rear)
1,040mm (1,100 with over rider)
Interior length:
860mm
1,520mm
Interior width:
1,420mm
1,420mm
Interior height:
1,075mm
1,085mm
WEIGHT:
Curb weight (Manual)
1,216kg
1,255kg
Curb weight (automatic)
1,208kg
1,247kg
Seating capacity:
2
4
PERFORMANCE:
Max Speed (Manual)
205 Kph
205 Kph
Max Speed (Auto)
200 Kph
200 Kph
Max grade ability:
0.46
0.49
Min. turning radius:
4.9m tire/5.4m body
5.3m tire/5.8m body
ENGINE:
Model:
L28
Calcification and cycle:
Gasoline, 4 stroke
No. Cylinders and arrangement:
6 in line
Valve arrangement:
O.H.C.
Bore X Stroke
8.60 X 79.0 mm
Displacement:
2,753 cc
Compression ratio:
8.3:1
Max. power:
170hp at 5,600 RPM
Max. torque:
24.5 kg-m at 4,400 RPM
Fuel tank capacity:
80l
Lubrication method:
Pressure feed flow with trochoid gear oil pump
Oil filter type:
Corrugated fin tube
Cooling method
Water cooling, forced circulation with centrifugal water pump
Radiator type:
Corrugated fin and tube
Carburetor:
E.F.I.
Air cleaner filter type:
Viscous paper
Battery capacity
12-60 V-AH
Alternator capacity:
12-60 V-A
Starter motor capacity:
1.4kw
Ignition method:
Battery coil
firing order
1-5-3-6-2-4
Distributor type:
Pick-up coil type 1C ignition unit
POWER TRAIN:
Clutch type:
Single dry disc with diaphragm spring
GEAR RATIOS:
M/T
A/T
1st
3.321
2.458
2nd
2.077
1.458
3rd
1.308
1.000
4th
1.000
-
5th
0.864
-
Rev.
3.382
2.182
Differential carrier gear ratio:
3.700
3.545
Differential carrier type:
Hypoid
SUSPENSION:
Front:
Independent struts with coil springs
Rear:
Independent semitrailing arms with coil springs
Shock absorber type:
Telescopic double acting hydraulic
Stabilizer type and size:
Torsion bar (22mm front, 20mm rear)
Torsion bar (22mm front, 18mm rear)
BRAKES:
Front:
Ventilated disc
Rear:
Disc
Brake booster size:
228.6mm
Pressure control type:
NP-valve
Parking brake type:
Mechanically operated on rear wheels
WHEELS AND TIRES:
Road wheel size (offset)
5-1/2 JJ14 [12mm] or 6JJ-14(AI)[10mm] (optional)
Tire size:
195/70 VR14
STEERING:    
Gear type:
Rack and Pinion / recirculating ball (power steering)
Gear ratio:
19.6 / 16.3 (power steering)
Column shaft type:
Collapsible

The specifications stated here are for Australian delivered 280ZXs only.

L28ET:
The L28ET, available on the 280ZX turbo in America, was developed from the L28 introduced in the 280Z. It was fitted with a Garret AiResearch TB03 turbocharger with integral wastegate, new pistons, higher capacity oil pump, and larger head bolts. Compression was reduced, and lubrication improved. A new temperature resistant alloy exhaust manifold was fitted, along with a 2-1/2in exhaust system, a larger air-flow meter, an enlarge intake manifold plenum chamber fitted with pop-off valve set at 7.5lb sq in, higher capacity injectors, a larger coil and oil cooler. There was also a new electronic management system controlling fuel injection, ignition timing, exhaust gas recalculation, idle speed, and fuel pump operation. Unfortunatly, the 280ZX trubo was not available in Australia.

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