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Toyota 2JZ-GTE Specifications
| Engine Model: Toyota 2JZ-GTE |
| Engine Type: 4-cycle inline 6-cylinder DOHC 24-valve VVT-i liquid-cooled gasoline |
| Total Displacement: 182.9 cu.in (2.99 L) |
| Rated Engine Power: 280-320 Hp (206-239 kW) at 5600 rpm |
| Fuel System Type: Sequential multi-port electronic fuel injection |
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- Toyota 2JZ-GTE Engine Specifications
| General Technical Data |
The Toyota 2JZ-GTE is one of the most celebrated and durable high-performance inline-six engines ever produced. Belonging to Toyota’s JZ engine family, it is a 3.0-liter, twin-turbocharged, inline-six gasoline engine that powered some of the most iconic sports cars of the 1990s and early 2000s, notably the Toyota Supra (JZA80) and the Aristo (JZS147 and JZS161). Introduced in 1991 as the high-output successor to the 1JZ-GTE, the 2JZ-GTE was engineered to deliver exceptional strength, tuning potential, and long-term reliability under high boost pressures.
Its robust cast-iron block, aluminum alloy
cylinder head, sequential twin-turbo system, and advanced electronic
management made it a masterpiece of Toyota’s performance engineering.
The 2JZ-GTE became legendary for its immense power potential — easily
exceeding factory ratings with minor modifications — and for its
bulletproof internals capable of handling 600–800 horsepower on stock
components. The engine’s smoothness, balance, and linear torque delivery
are hallmarks of the inline-six configuration.
Two main production versions exist: the early non-VVT-i model produced
from 1991 to 1996, and the later VVT-i variant (Variable Valve Timing –
intelligent) produced from 1997 to 2002. Both share the same
displacement and basic architecture, but the VVT-i engine incorporates
variable intake camshaft timing, revised turbos, improved torque curve,
and greater efficiency.
Japanese domestic versions were factory rated
at 280 PS (276 hp) due to the “Gentlemen’s Agreement,” while export
Supra models officially developed 320 hp (239 kW) and 427 Nm (315 lb-ft)
of torque. Despite these figures, real-world output often exceeded the
rated numbers. The 2JZ-GTE remains one of Toyota’s most iconic engines,
renowned for its combination of reliability, smoothness, and immense
performance ceiling.
The 2JZ-GTE is a 2,997 cubic centimeter (182.9 cu in) inline-six engine
with bore and stroke dimensions of 86.0 mm (3.39 inches) by 86.0 mm
(3.39 inches), making it a square design that provides a balanced
compromise between high-revving capability and low-end torque. The
compression ratio is 8.5:1 for non-VVT-i engines and approximately 9.0:1
for VVT-i versions, reflecting refinements to combustion and timing
control.
The cylinder block is constructed from cast
iron for maximum strength and rigidity, while the cylinder head is made
from lightweight aluminum alloy. The engine employs dual overhead
camshafts (DOHC) operating four valves per cylinder for a total of
twenty-four valves. Each camshaft is driven by a toothed rubber timing
belt from the crankshaft, with automatic tension control.
The crankshaft is a forged steel, fully counterweighted unit supported
by seven main bearings. Connecting rods are forged steel, shot-peened
for durability, and fitted with full-floating gudgeon pins. Pistons are
aluminum alloy with recessed crowns for controlled compression and
improved detonation resistance. The firing order is 1-5-3-6-2-4, and
engine redline is approximately 7,200 revolutions per minute. The
valvetrain uses bucket-type tappets with shims for valve clearance
adjustment. The VVT-i variant adds a hydraulic cam phaser on the intake
camshaft, capable of advancing or retarding timing by up to 30 degrees
of crank rotation, improving midrange torque and efficiency.
Power output for the non-VVT-i version (JZA80 Supra, 1993–1996) is
officially rated at 239 kW (320 hp) at 5,600 rpm with 427 Nm (315 lb-ft)
of torque at 4,000 rpm. The Japanese-market version is rated at 206 kW
(280 PS) at 5,600 rpm and 440 Nm (325 lb-ft). The VVT-i variant
(1997–2002) maintains the same peak power but delivers a broader torque
curve, achieving 451 Nm (333 lb-ft) at 3,600 rpm. The ECU electronically
limits boost in lower gears on some automatic transmission versions to
preserve driveline components.
| Fuel System |
The 2JZ-GTE employs a sequential twin-turbocharged fuel system combined
with electronically controlled sequential multi-point fuel injection
(EFI). Fuel is delivered from an in-tank electric pump through a
high-pressure fuel line to a common rail feeding six solenoid-type fuel
injectors. Injector capacity is typically 440 cc/min in export models
and 550 cc/min in later JDM units. Fuel pressure is regulated at
approximately 300 kPa (43 psi) relative to manifold vacuum by a
return-style regulator. Excess fuel returns to the tank via a dedicated
line.
The injectors are mounted on the intake manifold and controlled by the
ECU using signals from sensors such as the throttle position sensor, air
flow meter, manifold pressure sensor, crank angle sensor, and oxygen
sensor. The fuel filter is located along the chassis line and is
serviceable. Recommended fuel is premium unleaded gasoline with an
octane rating of 95 RON (91 AKI) or higher. The system incorporates a
cold-start injector in early versions for improved starting enrichment,
later omitted with refined ECU mapping.
| Lubrication System |
The lubrication system is a fully pressurized, wet-sump type with a
trochoid-type oil pump driven directly by the crankshaft. Oil is drawn
through a pickup strainer from the sump and directed through the
full-flow filter before reaching the main oil galleries. Lubrication is
provided to crankshaft journals, connecting rods, camshafts,
turbochargers, and valve train components. The system features piston
oil cooling jets that spray the undersides of the pistons to control
temperature under high boost.
Oil pressure at idle is approximately 100 kPa (15 psi) and 400–600 kPa
(58–87 psi) at 3,000 rpm. Oil capacity with filter change is about 5.0
liters (5.3 US quarts). Recommended oil grades are SAE 5W-30 or 10W-30
meeting API SJ or higher. A positive crankcase ventilation (PCV) valve
integrated into the cam cover manages blow-by gases. The oil cooler is a
water-to-oil type in the export Supra or air-to-oil in some Aristo
versions. Regular oil change interval is 10,000 km (6,000 miles) or six
months, whichever comes first.
| Cooling System |
The cooling system is a liquid-cooled, pressurized type utilizing a belt-driven centrifugal water pump. Coolant circulates through the block, head, turbocharger housings, and radiator. The thermostat begins to open at 82°C (180°F) and is fully open by 95°C (203°F). The radiator is aluminum cross-flow type with plastic tanks and incorporates an electric auxiliary fan for additional cooling.
Turbocharged models use a separate coolant circuit for turbocharger after-run cooling. Total coolant capacity is approximately 8.5 liters (9.0 US quarts). The system is pressurized to around 88 kPa (13 psi) and filled with a 50/50 mixture of ethylene glycol antifreeze and deionized water, providing freeze protection down to –35°C (–31°F). Regular coolant replacement is recommended every 40,000 km (25,000 miles) or two years.
| Induction and Turbocharging Systems |
The 2JZ-GTE’s most defining feature is its sequential twin-turbocharger system. Two CT12B (for early models) or CT20-series turbos (later JDM) operate in a staged configuration. The first turbocharger provides boost from low rpm for immediate response, while the second is activated at midrange via a set of control valves, wastegates, and actuators managed by the ECU and a vacuum control system.
This setup yields a smooth torque curve with minimal lag. Maximum boost
pressure is approximately 0.8 bar (11.6 psi) for export models and
around 0.9 bar (13 psi) for Japanese versions. The system includes a
front-mounted or top-mounted air-to-air intercooler to reduce charge
temperature and improve density.
The intake manifold is cast aluminum with equal-length runners tuned for
midrange performance. The throttle is cable-operated in non-VVT-i
versions and electronically controlled (ETCS-i) in the VVT-i engine. The
air filter is a large dry-element type housed in an airbox. Exhaust
gases exit through a stainless-steel manifold and feed into twin-entry
turbo turbines, then merge into a single downpipe connected to a
catalytic converter.
| Ignition and Electrical System |
The ignition system is fully electronic. Early engines utilize a distributor-less setup with three dual-outlet coils and six high-tension leads in a waste-spark arrangement. The later VVT-i engines employ six coil-on-plug ignition modules, each controlled individually by the ECU. Spark plugs are iridium-tipped, gapped at 1.1 mm (0.043 inch).
Ignition timing is fully mapped and dynamically adjusted based on load, rpm, and knock sensor feedback. The alternator output ranges between 90 and 120 amperes, while the starting motor is a 1.4-kilowatt reduction type. The electrical system operates on 12 volts DC with negative ground.
| Lubrication and Turbo Oil Feed |
Each turbocharger is supplied with pressurized oil via dedicated feed lines and returns oil through gravity drains to the sump. The oil lines are heat-shielded to prevent coking under high temperature. Turbo coolant circulation continues briefly after engine shutdown through thermosiphon effect to prevent heat soak damage. Recommended turbo inspection interval is every 100,000 km (60,000 miles).
| Valve Timing and Drive Mechanism |
A toothed timing belt synchronizes crankshaft and camshaft rotation. The belt also drives the water pump. Replacement interval is 100,000 km (60,000 miles). Belt tension is automatically maintained by a hydraulic tensioner. On VVT-i engines, an oil-pressure-actuated phaser alters intake camshaft timing continuously to optimize performance and emissions. This system greatly improves low-end torque and throttle response. Timing belt alignment marks are provided on all pulleys for precise installation.
| Other Systems |
The 2JZ-GTE incorporates a complete emissions control suite, including a closed-loop oxygen sensor system, exhaust gas recirculation (EGR) on some markets, and a catalytic converter. The positive crankcase ventilation (PCV) system returns blow-by gases to the intake for reburn. The evaporative emission control (EVAP) system prevents fuel vapor loss from the tank. Later models feature onboard diagnostics (OBD-II) with real-time fault monitoring.
| Dimensions and Weight |
Overall engine dimensions are approximately 880 mm (34.6 inches) in length, 650 mm (25.6 inches) in width, and 720 mm (28.3 inches) in height. Dry weight is around 215 kg (474 lbs) for the non-VVT-i version and slightly less for the later unit due to lighter accessories. The engine’s compact inline-six layout ensures excellent balance and packaging in front-engine, rear-wheel-drive applications.
| Maintenance Data |
Routine maintenance ensures the 2JZ-GTE’s long service life. Oil and filter changes are required every 10,000 km (6,000 miles), or sooner under severe conditions. Air filter replacement is recommended every 20,000 km (12,000 miles). Spark plugs should be replaced every 40,000 km (25,000 miles) for standard types or 100,000 km (62,000 miles) for iridium types. Timing belt replacement interval is 100,000 km (60,000 miles).
Coolant should be replaced every two years or 40,000 km (25,000 miles). Fuel filter replacement interval is every 40,000 km (25,000 miles). Compression pressure is approximately 1,200–1,400 kPa (175–200 psi) per cylinder, with a minimum allowable limit of 980 kPa (142 psi). Standard idle speed is 700 ± 50 rpm. Typical oil pressure at idle is 100 kPa (15 psi).
| Tightening Torques |
Cylinder head bolts: First stage 39 Nm (29 lb-ft), second stage 78 Nm
(58 lb-ft), plus 90 degrees.
Main bearing cap bolts: 83 Nm (61 lb-ft).
Connecting rod bolts: 43 Nm (32 lb-ft) plus 90 degrees.
Camshaft bearing cap bolts: 14 Nm (10 lb-ft).
Crankshaft pulley bolt: 295 Nm (217 lb-ft).
Flywheel bolts: 83 Nm (61 lb-ft) plus 90 degrees.
Intake manifold bolts: 25 Nm (18 lb-ft).
Exhaust manifold nuts: 34 Nm (25 lb-ft).
Spark plugs: 18 Nm (13 lb-ft).
Oil drain plug: 40 Nm (30 lb-ft).
Turbocharger mounting nuts: 42 Nm (31 lb-ft).
Cam cover bolts: 9 Nm (7 lb-ft).
| Vehicle Applications |
General Applications:
– Toyota Supra (JZA80, 1993–2002)
– Toyota Aristo / Lexus GS300 (JZS147, JZS161, 1991–2004)
– Toyota Soarer (JZZ30, Japan only, limited fitment).
The 2JZ-GTE powered both manual and automatic configurations, with
Getrag V160 six-speed manual transmission in the Supra Turbo being the
most famous pairing. Engine versions were tuned differently by region,
with USDM Supras using larger steel turbine wheels and air-to-air
intercoolers, while JDM units used ceramic turbines for faster spool and
a sequential control system for smoother response.
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