Nissan VG30DETT

The Nissan VG30DETT is a 3.0 l (2,960 cc, 180.62 cu.in.) twin turbochargered V6 60° four-stroke gasoline engine from Nissan VG-family. The VG30DETT was manufactured since 1987 up to 2000. The engine was introduced in 1987 on Nissan MID4-II concept car.

The VG30DETT features cast-iron block and two aluminum heads with double overhead camshafts (DOHC) and four valves per cylinder (24 valves in total). The Nissan VG30DETT engine is equipped with multi-point fuel injection system (EGI); mechanically timed electrical ignition system; NVTCS (Nissan’s Valve Timing Control System) on intake camshafts and EGR system. It has hybrid twin T22/TB02 turbochargers with twin intercoolers.

Compression ratio rating is 8.5:1. Cylinder bore and the piston stroke are 87.0 mm (3.43 in) and 83.0 mm (3.27 in), respectively. It produces from 280 PS (206 kW; 276 HP) at 6,400 rpm to 330 PS (242 kW; 325 HP) at 6,800 rpm of horsepower and from 382 Nm (39.0 kg·m; 281.9 ft·lb) at 3,200 rpm to 388 Nm (39.6 kg·m; 286.3 ft·lb) at 3,600 rpm of maximum torque.

The breakdown of the engine code is as follows:

• VG – Engine Family
• 30 – 3.0 Liter Displacement
• D – DOHC (Dual Overhead Camshafts)
• E – Multi Point Fuel Injection
• TT – Twin-Turbocharged

General information

Cylinder block

The VG30DETT has a cast-iron block with a four-bearings crankshaft supported system. The cylinder bore is 87.0 mm (3.43 in), piston stroke is 83.0 mm (3.27 in) and compression ratio rating is 9.0:1-11.0:1. The Nissan VG30DETT motor has two compression and one oil control rings. The connecting rod center distance is 154.10 mm (6.0669 in). The crankshaft main journal diameter is 62.9 mm (2.48 in) and crankpin diameter is 50.0 mm (1.97 in), center distance is 41.5 mm (1.63 mm).

Main bearing beam bolts tightening procedure and torque specs:

• 90-100 Nm; 9.2-10.2 kg·m; 67-74 ft·lb in two-three stages

After securing bearing cap bolts, make sure crankshaft turns smoothly by hand.

Connecting rod bearing nut

• Step 1: 14-16 Nm; 1.4-1.6 kg·m; 10-12 ft·lb
• Step 2: Turn nuts 60-65° or 59-65 Nm; 6.0-6.6 kg·m; 43-48 ft·lb

Crankshaft pulley bolt

• 216-235 Nm; 22-24 kg·m; 159-174 ft·lb

Flywheel (M/T) or Drive plate (A/T) fixing bolts

• 83-93 Nm; 8.5-9.5 kg·m; 61-69 ft·lb

Cylinder head

The cylinder head is made of strong, light aluminum alloy which gives it good cooling efficiency. The has double over-head camshaft for each head and 4 valves per cylinder. The camshafts are driven by a single timing belt. The engine is equipped with NVTCS (Nissan’s Valve Timing Control System) system for intake cams.

The intake valve diameter is 34.0 mm (1.34 in), the exhaust valve diameter is 29.5 mm (1.16 in), the duration is 248° for both side. The VG30DETT is equipped with hydraulic valve lifters.

Head tightening procedure and torque specs:

• Step 1: 39 Nm; 4.0 kg·m; 29 ft·lb
• Step 2: 123 Nm; 12.5 kg·m; 90 ft·lb
• Step 3: Loosen all bolts completely
• Step 4: 34-44 kg·m; 3.5-4.5 kg·m; 25-33 ft·lb
• Step 5: Turn all bolts 65-70° or to 123 Nm; 12.5 kg·m; 90 ft·lb

Camshaft sprocket bolts

• 123-132 Nm; 12.5-13.5 kg·m; 90-98 ft·lb

Maintenance data

Vehicle applications

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About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.