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Toyota G engine

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For the G16E engine produced since 2020, seeToyota G16E engine.
Toyota G engine
1G-GEU engine in aToyota Supra GA61
Overview
ManufacturerToyota Motor Corporation
Production
  • 1967–1968
  • 1979–2008
Layout
ConfigurationStraight-6
Displacement2.0 L (1,988 cc; 121.3 cu in)
Cylinder bore75 mm (2.95 in)
Piston stroke75 mm (2.95 in)
Cylinder blockmaterialCast iron
Cylinder headmaterialAluminum
ValvetrainSOHC2 valves x cyl.
DOHC4 valvesx cyl.
withVVT-i(since 1998)
Valvetrain drive systemBelt-driven
Combustion
SuperchargerToyota SC-14 (1G-GZE)
TurbochargerToyota CT-12Intercooled
FuelsystemMulti-port fuel injection
Fuel typeGasoline
Cooling systemWater-cooled
Output
Power output100–210PS(74–154kW;99–207hp)
Torque output152–275N⋅m(112–203lb⋅ft;15–28kg⋅m)

TheToyota Motor CorporationG-familyengine is a family of straight-6piston enginesproduced 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-drivenOHCnon-interferenceengines (except theVVT-iversion which is an interference engine),multivalveDOHC(except the 1G-EUSOHC12 valve engine) andvariable valve timingwere 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 theLASREα–X,featuringtwin-turbos,variable valve timing and intake as well as variable displacement, was fitted to theToyota FX-1show car at the 1983Tokyo Motor Show.It showcased a number of technologies which were later to become commonplace.[2]This engine was designed around the new LASRE technology for lighter weight – such as sintered hollow camshafts.[3] These engines were used as a lower-displacement alternative to the more upmarketM familyandJZ familystraight-sixes.

For ten months (in 1967-1968), Toyota also offeredHino'sGR100 engine as the "Toyota G" in the shortlivedBriskalight truck.[4]

G (Hino GR100)

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After Toyota's takeover ofHino Motorsin 1967, theBriskaone-tonne truck was sold with Toyota badging for ten months. The engine code was changed from Hino's "GR100" to "G"for these cars.[5]The engine is a 1251 cc watercooledOHVinline-four with distantRenaultorigins and was originally developed by Hino for theirContessapassenger car. Bore and stroke are 71 mm × 79 mm (2.80 in × 3.11 in), maximum power 63 PS (46 kW) at 5500 rpm. Hino's earlier models had a variety of power outputs ranging from 52 to 65 PS.

Apart from its name, this engine is unrelated to the later series of Toyota G engines.

1G

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Since just one displacement was offered, all G-family engines are marked1Gand share the same "square"75 mm (2.95 in) bore and stroke.

Applications:

1G-E

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The export-spec two-valve1G-Ehad no emissions controls and were used in commercial vehicles and for a few export markets, mostly southeast Asia. Typical specifications:

  • 80 kW (109 PS; 107 hp) at 5000 rpm, 162 N⋅m (119 lb⋅ft) torque at 4000 rpm (Mark II, 1986, Indonesia)
  • 100 PS (74 kW; 99 hp) at 5200 rpm,JDMCrown GS130/131/136V/130G

1G-EU

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The Japan-spec1G-EUwas produced from 1979 through 1988. This and the 1G-E are the only two-valveSOHCmembers of the family. Output was 105–125 hp (78–93 kW; 106–127 PS) at 5400 rpm and 157–172 N⋅m (116–127 lb⋅ft) at 4400 rpm.

1G-FE

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1G-FE

TheDOHC1G-FEuses a narrow valve angle and otherfuel economyoptimizations. It was introduced in 1988, it features a cast iron block with aluminum cylinder head and uses the slave cam system. Output was 135 PS (99 kW; 133 hp) at 5,600 rpm and 176 N⋅m (130 lb⋅ft) at 4,400 rpm. In 1998VVT-iwas added, which bumped output to 160 PS (118 kW; 158 hp) at 6,200 rpm and 200 N⋅m (148 lb⋅ft) at 4,400 rpm for the Altezza/IS 200. Production of this engine family ceased in 2008 after the discontinuation of theCrown Sedanmild hybrid.[6]

Applications:

1G-GEU

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The 1G-GEU on display at the 1981Tokyo Motor Show.

The24-valveDOHC1G-GEUwas intended for high performance and featured apent-roof combustion chamber.[7]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 140–160 PS (103–118 kW; 138–158 hp) at 6,200 rpm and 162–181 N⋅m (119–133 lb⋅ft) at 5,600 rpm. To minimize the downsides of a multi-valve setup, the 1G-GEU was also equipped withT-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.[1][8]

Applications:

1G-GE

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The1G-GEreplaced the1G-GEUin 1988. It was detuned from 160 PS (118 kW; 158 hp) to 150 PS (110 kW; 148 hp) and served the same cars as 1G-GEU did. Torque was 182 N⋅m (135 lb⋅ft) at 5600 rpm.[9]It was produced for theSupra GA70until 1993.

1G-GTE

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Toyota 1G-GTE

The 24-valve DOHC1G-GTEadded two CT-12turbochargersto the versatile motor. There were 3 generations of this engine both air-to-air and air-to-waterintercoolerswere used, pushing output from 185 to 210 PS (136 to 154 kW; 182 to 207 hp) at 6200 rpm and 234 to 275 N⋅m (173 to 203 lb⋅ft) 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 PS1JZ-GTEon most Toyota cars.

Applications:

1G-GP/GPE

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The1G-GPand1G-GPEwas anLPGversion of the 1G-GE engine. Output is 110 PS (81 kW; 108 hp) at 5600 rpm and torque is 15.5 kg⋅m (152 N⋅m; 112 lbf⋅ft) at 2400 rpm.[10]

Applications:

  • Toyota Crown Sedan (GS130, GS151)
  • Toyota Crown Comfort/Sedan (GXS10)[10]

1G-GZE

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The1G-GZEwas asuperchargedversion produced from 1986 until 1992. Output is 170 PS (125 kW; 168 hp) at 6,000 rpm and 226 N⋅m (167 lb⋅ft) 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 withautomatic gearboxes.In August 1991 it was replaced with the1JZ-GEon the Mark II/Chaser/Cresta, while serving on the Crown until 1992.

Applications:

  • Toyota CrownGS120, GS121, GS131, GS130G (Station Wagon)
  • 1988–1990 Toyota Mark II/Chaser/Cresta GX81

References

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  1. ^abAll About the Toyota Twin Cam, 2nd ed.,Tokyo, Japan: Toyota Motor Company, 1984, p. 9
  2. ^All About the Toyota Twin Cam,p. 18
  3. ^"Development of LASRE Engines".75 years of Toyota.Toyota Motor Corporation. 2012.Retrieved30 May2024.
  4. ^Nhật dã のクルマ: カタログよりトヨタ・ブリスカ[Hino cars: Toyota Briska catalog].Hino Samurai(in Japanese). Satoshi Ezawa. Archived fromthe originalon 2016-09-19.
  5. ^"ブリスカ"[Briska].75 Years of Toyota - Vehicle Lineage(in Japanese). Toyota. Archived fromthe originalon 2016-07-08.
  6. ^"History of Toyota - 75 years - Crown vehicle lineage".Toyota.Retrieved2022-01-27.
  7. ^All About the Toyota Twin Cam,p. 21
  8. ^All About the Toyota Twin Cam,p. 20
  9. ^Tự động xa ガイドブック[Japanese Motor Vehicles Guide Book 1989~'90] (in Japanese), vol. 36, Japan:Japan Automobile Manufacturers Association,1989-10-25, p. 186, 0053-890036-3400
  10. ^ab"Crown Comfort"(brochure). Dec 1995. p. 17.Retrieved3 June2013.[permanent dead link‍]

See also

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