10/03/2024
Alhamdulillah Sold 1G
And Installed In A Mark II ❤️
The Toyota Motor Corporation G-family engine is a family of straight-6 piston engines produced from 1979 to 2008. It is notable in that only a single displacement, 2.0 L (1,988 cc), was produced in this series. Initially belt-driven OHC non-interference engines (except the VVT-i version which is an interference engine), multivalve DOHC (except the 1G-EU SOHC 12 valve engine) and variable valve timing were added later during the production run. The 1G-GEU was Toyota's first mass produced four-valve twincam engine.[1] A prototype version of the 1G-GEU called the LASREα–X, featuring twin-turbos, variable valve timing and intake as well as variable displacement, was fitted to the Toyota FX-1 show car at the 1983 Tokyo Motor Show. It showcased a number of technologies which were later to become commonplace.
These engines were used as a lower-displacement alternative to the more upmarket M family and JZ family straight-sixes.
For ten months in 1967-1968, Toyota also offered Hino's GR100 engine as the "Toyota G" in the shortlived Briska light truck.
Toyota G engine Specifications;
Manufacturer: Toyota Motor Corporation
Production: 1967–1968 and 1979–2008
Configuration: Straight-6
Displacement: 2.0 L or 1,988 cc
Cylinder bore: 75 mm
Piston stroke: 75 mm
Cylinder block material: Cast iron
Cylinder head material: Aluminum
Valvetrain: SOHC 2 valves x cylDOHC 4 valves x cyl.
with VVT-i (since 1998)
Valvetrain drive system: Belt-driven
Supercharger: Toyota SC-14 (1G-GZE)
Turbocharger: Toyota CT-12 Intercooled
Fuel system: Multi-port fuel injection
Fuel type: Gasoline
Cooling system:Water-cooled
Power output: 207 hp
Torque output: 152–275 N⋅m
Since just one displacement was offered, all G-family engines are marked 1G and share the same "square" 75 mm bore and stroke.
Applications:
Toyota Soarer
Toyota Celica Supra
Toyota Crown
Toyota Crown Comfort/Crown Sedan
Toyota Cressida/Mark II/Cresta/Chaser
Toyota Altezza
Lexus IS200
Bonus Tips;
👇🏻1G-E
The export-spec two-valve 1G-E had no emissions controls and were used in commercial vehicles and for a few export markets, mostly southeast Asia. Typical specifications:
107 hpat 5000 rpm, 162 N⋅m torque at 4000 rpm (Mark II, 1986, Indonesia)
99 hp at 5200 rpm, JDM Crown GS130/131/136V/130G
👇🏻1G-EU
The Japan-spec 1G-EU was produced from 1979 through 1988. This and the 1G-E are the only two-valve SOHC members of the family. Output was 105–125 hp at 5400 rpm and 157–172 N⋅m at 4400 rpm.
👇🏻1G-FE
1G-FE
The DOHC 1G-FE uses a narrow valve angle and other fuel economy optimizations. It was introduced in 1988, it features a cast iron block with aluminum cylinder head and uses the slave cam system. Output was 133 hp at 5,600 rpm and 176 N⋅m at 4,400 rpm. In 1998 VVT-i was added, which bumped output to 158 hp at 6,200 rpm and 200 N⋅m at 4,400 rpm for the Altezza/IS 200. Production of this engine family ceased in 2008 after the discontinuation of the Crown Sedan mild hybrid.
Applications:
Toyota Altezza/Lexus IS 200
Toyota Crown
Aug 2001–Aug 2008 Toyota Crown Sedan GBS12, GXS12
Toyota Chaser/Mark II/Cresta
Toyota Mark II Blit
Toyota Verossa
Toyota Supra (A70) GA70 "G" grade
Toyota Soarer
👇🏻1G-GEU
The 24-valve DOHC 1G-GEU was intended for high performance and featured a pent-roof combustion chamber. Introduced in August 1982 and produced through 1986, mostly for the Japanese market, it was Toyota's first multi-valve twincam engine to make it to the market, and won the "JSME Medal for New Technology" (Japan Society of Mechanical Engineers) in 1982. Output was 138–158 hp) at 6,200 rpm and 162–181 N⋅m at 5,600 rpm. To minimize the downsides of a multi-valve setup, the 1G-GEU was also equipped with T-VIS (Toyota Variable Induction System), increasing low to mid-engine speed torque. Like all following twin cam Toyotas, it used a timing belt rather than chain, for less noise and lower maintenance requirements. In August 1983, the fuel injection system was changed to EFI-D, which measures the pressure in the intake manifold to determine the proper air-fuel mixture.
Applications:
Aug 1982–1985 Celica XX GA61
Aug 1982–1992 Toyota Chaser/Mark II/Cresta
Aug 1983–1995 Toyota Crown
Feb 1983–1991 Toyota Soarer
👇🏻1G-GE
The 1G-GE replaced the 1G-GEU in 1988. It was detuned from 158 hp to 148 hp and served the same cars as 1G-GEU did. Torque was 182 N⋅m at 5600 rpm. It was produced for the Supra GA70 until 1993.
👇🏻1G-GTE
Toyota 1G-GTE
The 24-valve DOHC 1G-GTE added two CT-12 turbochargers to the versatile motor. There were 3 generations of this engine both air-to-air and air-to-water intercoolers were used, pushing output from 182 to 207 hp at 6200 rpm and 234 to 275 N⋅m at 3800 rpm using the air-to-air over the air-to-water. This was the most powerful engine of the whole G family. In May 1991 it was replaced with the 280 PS 1JZ-GTE on most Toyota cars.
Applications:
1986–1992 Supra MK3 (GA70; JDM only)
1986–1992 Mark II/Chaser/Cresta (GX71, GX81)
1986–1991 Soarer (GZ20)
👇🏻1G-GP/GPE
The 1G-GP and 1G-GPE was an LPG version of the 1G-GE engine. Output is 108 hp at 5600 rpm and torque is 152 N⋅m; 112 at 2400 rpm.
Applications:
Toyota Crown Sedan (GS130, GS151)
Toyota Crown Comfort/Sedan (GXS10)
👇🏻1G-GZE
The 1G-GZE was a supercharged version produced from 1986 until 1992. Output is 168 hp at 6,000 rpm and 226 N⋅m at 3,600 rpm. Like the turbo, it was a 24-valve DOHC 6-cylinder engine but featured a Distributorless Ignition System (DIS). The 1G-GZE was mated only with automatic gearboxes. In August 1991 it was replaced with the 1JZ-GE on the Mark II, Chaser and Cresta, while serving on the Crown until 1992.
Applications:
Toyota Crown GS120, GS121, GS131, GS130G (Station Wagon)
1988–1990 Toyota Mark II/Chaser/Cresta GX81