What is 1g-gte?

1G-GTE Information

The 1G-GTE is a 2.0-liter inline-6 cylinder, twin-turbocharged engine produced by Toyota from 1986 to 1992. It was primarily used in Japanese market vehicles. It's known for its smooth operation and decent power output for its time.

• General Specifications:

  • Configuration: Inline-6
  • Displacement: 1,988 cc (2.0 L; 121.3 cu in)
  • Aspiration: Twin-turbocharged
  • Valvetrain: DOHC, 24-valve
  • Fuel Delivery: Electronic Fuel Injection (EFI)

• Power Output: Typically produced around 185-210 horsepower (138-157 kW) and 245-275 Nm of torque, depending on the specific year and tuning.

• Vehicles Used In: Predominantly found in the following Toyota vehicles:

  • Toyota Soarer (Z20)
  • Toyota Supra (GA70)
  • Toyota Chaser (GX71, GX81)
  • Toyota Cresta (GX71, GX81)
  • Toyota Mark II (GX71, GX81)

• Features:

  • Twin-Turbocharger System: Utilizes two small turbochargers running in parallel for quicker spool-up and reduced turbo lag, particularly at lower RPMs. The turbochargers are relatively small CT12A units.
  • DOHC (Double Overhead Camshaft): 24-valve design with dual overhead camshafts for improved breathing and higher RPM performance.
  • EFI (Electronic Fuel Injection): Electronically controlled fuel injection for precise fuel delivery and improved efficiency.

• Common Issues:

  • Turbocharger Failure: The small turbochargers can be prone to failure, especially with age and lack of maintenance.
  • Vacuum Leaks: The complex vacuum system can develop leaks, leading to poor performance and idling issues.
  • Oil Leaks: Due to age, oil leaks from various seals and gaskets are common.

• Aftermarket Support: While not as extensively supported as some other Toyota engines (like the 1JZ or 2JZ), there is still some aftermarket support available for performance upgrades and maintenance parts, although sourcing specific components can sometimes be challenging.

• Reliability: Generally regarded as a reliable engine when properly maintained. Regular oil changes and attention to cooling system maintenance are crucial for longevity.