Toyota GR engine

Toyota GR engine

Infobox Automobile engine
name=Toyota GR engine


manufacturer=Toyota Motor Corporation
production=2002–
class=DOHC 60° V6
predecessor=Toyota MZ engine Toyota M engine Toyota JZ engine Toyota VZ engine Toyota G engine
similar=Chrysler SOHC V6
Ford Cyclone
GM HFV6
Honda J-series
Nissan VQ
The Toyota GR engine family is an open-deck, die-cast V6 piston engine series. The GR series has a 60° aluminum block and aluminum DOHC cylinder heads. Some versions use MFI fuel injection, some have direct gasoline injection, and some have a combination of direct injection and MFI. This engine series also has 4 valves per cylinder, features forged steel connecting rods, one-piece cast camshafts, and a cast aluminum lower intake manifold.

"Note: power ratings have changed due to SAE measurement changes."

1GR-FE

The 1GR-FE is the 4.0L version. Bore is 94 mm and stroke is 95 mm. Output is Convert|236|hp|kW|0|abbr=on at 5200 rpm with auto ftlbf|266 of torque at 4000 rpm on 87 octane, and Convert|239|hp|kW|0|abbr=on at 5200 rpm with Auto ftlbf|278|0 at 3700 rpm on 91 octane. This engine features Toyota's single VVT-i, variable valve timing, system and a compression ratio of 10.0:1. Inside, the 1GR uses a taper-squish combustion chamber design with matching pistons to improve anti-knocking and engine performance, while also improving intake and fuel efficiency. Toyota adopted a siamese-type intake port, which reduces the surface area of the port walls and prevents fuel from adhering to such walls. This engine has special cast-iron cylinder liners cast into the block, which are a spiny type to improve adhesion between the liner and cylinder block. With these special thin liners it is impossible to bore the block. In the event of cylinder wall damage (scoring, deep protrusions, etc), the entire cylinder block must be replaced. For increased block rigidity, the 1GR also receives a high temperature plastic insulator/protector, which fills the empty space between the outer portion of the cylinders and block material common to open deck engines. For increased cooling efficiency, the 1GR employs water passages between the bores of the engine. There are such 2 passages for each bank for a total of 4. This reduces cylinder hot-spotting and keeps combustion chamber temperatures more uniform.

Applications:
* 2003 Toyota 4Runner
* 2003 Toyota Land Cruiser (Europe)
* 2003 Toyota Land Cruiser Prado (Asia Pacific)
* 2005-2009 Toyota Tacoma
* 2005 Toyota Tundra
* 2005 Toyota Fortuner (Middle East)
* 2007 Toyota FJ Cruiser
* 2005 - 2007 Toyota Hilux (Australia)

2GR-FE

The 2GR-FE is a 3.5 L (3456 cc) version. Bore remains at 94 mm but stroke is reduced to 83 mm. Reported output varies depending on the vehicle application, but is approximately Convert|268|hp|kW|0|abbr=on at 6200 rpm with Auto ftlbf|248 of torque at 4700 rpm on 87 octane (R+M/2) or 280hp and 260ft of torque using premium 91 octane. This version features Toyota's "dual-VVT-i", variable valve timing on both the intake and exhaust cams. Valves are driven by roller-follower rocker arms with low friction roller bearings, and a unique, concave cam lobe design to increase valve lift over the traditional shimless lifter type system of the 1GR-FE. This increases overall cylinder head height to accommodate the slightly taller roller rocker system. Moreover, the cylinder head is segmented into 3 parts: valve cover, camshaft sub-assembly housing, and cylinder head sub-assembly. As such, this valvetrain is used across all other GR engines with dual VVT-i.

Applications:
* 2005 Toyota Avalon
* 2006 Toyota Aurion
* 2006 Toyota RAV4 V6
* 2006 Toyota Estima V6
* 2007 Toyota Previa V6
* 2007 Toyota Tarago V6
* 2007 Toyota Camry V6
* 2007 Toyota Sienna
* 2007 Lexus ES 350
* 2007 Lexus RX 350
* 2007 Toyota Kluger
* 2008 Toyota Highlander
* 2009 Toyota Venza
* 2007 Toyota Blade Master
* 2010 Lotus Evora

2GR-FSE

The 2GR-FSE engine used in the Lexus IS 350 incorporates Toyota's D4-S twin injection system. This system combines gasoline direct injection with traditional port injection. Using direct injection and port injection simultaneously facilitates more precise mixing of air and fuel under low and medium load conditions for greater efficiency, while high load conditions dictate the use of direct injection alone for maximum power. The 2GR-FSE engine is rated at Auto PS|315 at 6,400 RPM and Convert|38.4|kgm|Nm ftlbf|0|abbr=on at 4,800 RPM.

The 2GR-FSE was on the Ward's 10 Best Engines list for 2006, 2007 and 2008.Fact|date=January 2008

Applications:
* 2006 Toyota Crown Athlete (Japan)
* 2006 Lexus GS 350 (Japan)
* 2006 Lexus GS 450h
* 2006 Lexus IS 350 (Japan and United States)
* 2007 Lexus GS 350 (United States)

3GR-FE

The 3GR-FE is a 3.0 L (2994 cc) version with dual VVT-i. Bore is 87.5 mm while stroke is shared with the 2GR at 83 mm, with a compression ratio of 10.5:1. Output is Convert|170|kW|hp|0|abbr=on at 6,400 RPM, and Convert|300|Nm|ftlbf|0|abbr=on at 4,800 RPM.

Applications:
* 2003 Toyota Crown (Asia-Pacific ex.Japan)
* 2005 Lexus GS 300 (Middle East, Asia-Pacific ex.Japan)
* 2007 Lexus IS 300 (Middle East, Asia-Pacific ex.Japan)

3GR-FSE

The 3GR-FSE adds gasoline direct injection, referred to by Toyota as "D-4". The 3GR-FSE engine is rated at Auto PS|256 at 6,200 RPM and Convert|32|kgm|Nm ftlbf|0|abbr=on at 3,600 RPM.

Applications:
* 2005 Toyota Mark X (Japan)
* 2005 Toyota Crown Royal (Japan)
* 2006 Lexus GS 300 (US and Europe)

4GR-FSE

The 4GR-FSE is a 2.5 L (2499 cc) version. Bore is 83.1 mm while stroke is reduced to 76.9 mm. Output is Auto PS|215 at 6,400 RPM and Convert|26.5|kgm|Nm ftlbf|0|abbr=on at 3,800 RPM. This version also features "dual-VVT-i", variable valve timing on both the intake and exhaust cams and gasoline direct injection.

Applications:
* 2006 Lexus IS 250
* 2006 Toyota Crown Royal (Japan)
* 2006 Toyota Mark X (Japan)

5GR-FE

The 5GR-FE is a 2.5 L (2497 cc) version. Bore is 87.5 mm while stroke is 69.2 mm with a compression ratio of 10.0:1. Output is Convert|145|kW|hp|0|abbr=on at 6,200 RPM and Convert|24.7|kgm|Nm ftlbf|0|abbr=on at 4,400 RPM. This version does not include direct injection (D-4), but does include Dual VVT-i.

Applications:
* 2005 Toyota Reiz (China)
* 2003 Toyota Crown (China)

ee also

* List of Toyota engines


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