The Nissan VG30DETT is a 2,960 cc, 60 — degree V6 twin — turbocharged petrol engine produced between 1987 and 1995. It features an aluminium block and heads, dual overhead camshafts (DOHC), and 24 valves, representing the pinnacle of Nissan's VG engine series. In standard form it delivered 227 kW (308 PS), with torque figures around 392 Nm, prioritising high — revving power and motorsport — derived performance.
Fitted exclusively to the 300ZX (Z32), the VG30DETT was engine…
Production years 1987–1995 meet Japanese pre-2000 emissions standards (MLIT Japan Type Approval data for relevant chassis codes).
The Nissan VG30DETT is a 2,960 cc 60-degree V6 twin-turbocharged petrol engineered for the 300ZX (1987-1995). It combines an aluminium block with a DOHC 24-valve head to deliver exhilarating, high-revving performance and exceptional tuning potential. Designed for Japanese pre-2000 emissions compliance, it balances raw power with sophisticated engine management.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,960 cc | |
Fuel type | Petrol | |
Configuration | V6, 60°, DOHC, 24-valve | |
Aspiration | Twin-Turbocharged | |
Bore × stroke | 87.0 mm × 83.0 mm | |
Power output | 227 kW (308 PS) | |
Torque | 392 Nm @ 3,600 rpm | |
Fuel system | Sequential multi-port fuel injection (MPI) | |
Emissions standard | Japanese Pre-2000 Standards | |
Compression ratio | 8.3:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Twin Garrett T25 (ceramic turbine) | |
Timing system | Chain-driven DOHC | |
Oil type | API SF/SG or equivalent (SAE 10W-30) | |
Dry weight | Approx. 240 kg |
The Nissan VG30DETT was used exclusively in Nissan's Z32 300ZX platform with longitudinal mounting. This engine received no major platform-specific adaptations, as it was the sole twin-turbo engine for the Z32. Minor running changes occurred throughout its production life. All specifications are documented in OEM technical bulletins.
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The VG30DETT's primary reliability risk is failure of the original ceramic turbocharger wheels, particularly in modified or poorly maintained engines. Nissan service data and tuner reports indicate this is a leading cause of major engine damage, while its robust bottom end ensures long service life with proper care. Oil leaks and ignition system failure are secondary concerns.
Analysis derived from Nissan technical bulletins (1989-1995) and general workshop/tuner failure statistics. Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
Yes, the VG30DETT is renowned for its strength and durability when properly maintained. The main caveat is the fragile ceramic turbo wheels, which is a well-known and addressable issue. With this upgraded and proper maintenance, these engines are famously robust and highly tunable, capable of lasting for hundreds of thousands of kilometers.
The most common and critical issue is failure of the original ceramic turbocharger wheels. Other common problems include oil leaks from valve covers and the rear main seal, ignition coil or spark plug wire failure, and coolant hose or thermostat degradation due to age.
The VG30DETT was used exclusively in the Nissan 300ZX (Z32 generation) from 1987 to 1995. It was the twin-turbocharged engine option for this iconic sports car and was not fitted to any other Nissan production model.
Absolutely. The VG30DETT is a highly tunable engine. With upgraded turbos, fuel system, and ECU, 300-400+ kW is readily achievable on the stock internals. Its robust design and low compression ratio make it ideal for high-boost applications, cementing its legendary status in the tuning world.
Fuel economy is poor due to its performance nature. Expect around 13.0-16.0 L/100km (22-18 mpg UK) combined for a 300ZX, depending heavily on driving style. It is designed for exhilarating performance, not efficiency, and consumption will be significantly higher under spirited driving or with modifications.
Yes. The Nissan VG30DETT is an interference engine. If the timing chain were to fail or jump significantly, the pistons and valves can collide, resulting in severe internal engine damage. This makes regular inspection of the timing components critical.
The VG30DETT requires a high-quality petrol engine oil, typically API SF or SG specification. A 10W-30 viscosity is commonly recommended for its operating conditions and to ensure adequate protection for the turbos and bearings under high stress.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
NISSAN Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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