Toyota’s 3.0-liter twin-turbocharged inline-six used in the fourth-generation Supra is the 2JZ-GTE. It belongs to Toyota’s JZ family of straight-six engines.
The 2JZ-GTE has a 2,997 cc displacement and uses two turbochargers. In the Japanese-market A80 Supra, the turbo engine was rated at 280 PS and 431 Nm of torque, while export versions received different equipment and higher published outputs. The engine’s iron block, strong bottom end and tuning potential helped make it one of the most celebrated performance engines of the 1990s.
The turbochargers operate sequentially rather than simply working in parallel. The first turbo provides early response, while exhaust flow is progressively used to bring the second turbo into operation at higher engine speed. This arrangement was intended to reduce lag while maintaining strong top-end power.
The 1JZ-GTE is a related 2.5-liter twin-turbo engine, not the 3.0-liter Supra engine named here. The naturally aspirated 3.0-liter 2JZ-GE shares the family resemblance but lacks the GTE’s factory twin-turbo specification. The 4G63 is a Mitsubishi engine, and 3M is associated with Toyota’s earlier sports-car engines.