Engine Nissan VG30ET

The 3.0-liter Nissan VG30ET engine was produced from 1983 to 1991 at a Japanese plant and was installed both in sports models of the 300ZX family and in civilian Cedric and Gloria. This unit was produced with two different turbines and, accordingly, different power.

The VG30 family also includes internal combustion engines: VG30i, VG30E, VG30DE, VG30DET, VG30DETT.

The engine was installed on:

  • Nissan Cedric 6 (Y30) in 1983 – 1987;
  • Nissan Cedric 7 (Y31) in 1987 – 1991;
  • Nissan Gloria 7 (Y30) in 1983 – 1987;
  • Nissan Gloria 8 (Y31) in 1987 – 1991;
  • Nissan Leopard F30 in 1984 – 1986;
  • Nissan 300ZX 3 (Z31) in 1983 – 1989.

Specifications

Production years 1983-1991
Displacement, cc 2960
Fuel system distributed injection
Power output, hp 195 – 230
Torque output, Nm 295 – 345
Cylinder block cast iron V6
Block head aluminum 12v
Cylinder bore, mm 87
Piston stroke, mm 83
Compression ratio 7.8 – 8.3
Features no
Hydraulic lifters yes
Timing drive belt
Phase regulator no
Turbocharging Garrett T3 or T25
Recommended engine oil 5W-30
Engine oil capacity, liter 3.9
Fuel type 92
Euro standards EURO 1/2
Fuel consumption, L/100 km (for Nissan Cedric 1986)
— city
— highway
— combined
16.7
12.3
14.5
Engine lifespan, km ~360 000
Weight, kg 225

Disadvantages of the VG30ET engine

  • The most dangerous thing is a broken crankshaft shank, which often leads to bending of the valves;
  • The exhaust manifold gasket burns out, and when it is removed, the studs break;
  • Replacing the studs with thicker ones carries the risk of future header cracking;
  • The timing belt resource is about 70 thousand km, and when it breaks, the valve almost always bends;
  • After 100 thousand km, pump leaks and knocks of hydraulic lifters are often encountered.

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