The Toyota 1JZ-GTE VVT-i is a 2.5-liter, inline-6, twin-turbocharged engine with variable valve timing (VVT-i). It’s known for its robust design and tuning potential, commonly found in various Toyota models. The engine produces around 280 horsepower and 268 lb-ft of torque in its stock configuration.
Key Specifications:
- Engine Type: Inline-6, 24-valve, DOHC, twin-turbocharged
- Displacement: 2.5 liters (2491 cc)
- Bore x Stroke: 86 mm x 71.5 mm (3.39 in x 2.81 in)
- Compression Ratio: 8.5:1
- Valvetrain: DOHC with VVT-i (Variable Valve Timing with intelligence)
- Turbochargers: Twin CT12A (parallel arrangement)
- Intercooler: Side-mounted or front-mounted air-to-air
- Horsepower: Approximately 280 PS (206 kW; 276 hp) at 6200 rpm (factory quoted)
- Torque: Approximately 363 N⋅m (268 lb⋅ft) at 4800 rpm (factory quoted)
- Fuel type: Gasoline
Notable Features:
- VVT-i: Improves engine performance, fuel efficiency, and emissions by varying the valve timing.
- Twin Turbochargers: Provide increased power and response.
- Front Sump: Refers to the oil pan configuration, common in JDM imports.
- Tuning Potential: The 1JZ-GTE is highly regarded for its ability to handle significant power increases with modifications.
Common Applications:
- Toyota Chaser
- Toyota Cresta
- Toyota Mark II
- Toyota Supra
- Toyota Soarer
- Toyota Crown Athlete V
Modifications:
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Single Turbo Conversions:
Many enthusiasts opt to replace the twin turbos with a larger single turbo for even more power.
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Engine Management:
Upgrading the engine management system (ECU) is common for optimizing performance with modifications.
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Fuel System Upgrades:
Increased fuel flow is necessary when running higher boost levels.
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Other Upgrades:Intake, exhaust, intercooler, and other components can be upgraded to further enhance performance.








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