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The 22R has a large displacement and a strong block, but its comparatively long stroke and restrictive head limit its use in high revving applications. Thus, the Toyota 18R-G, 2T-G, 4A-GE and 3S-GE 4-cylinder engines are better suited for performance applications. A popular modification to the early 22R is to use a 20R head.
F – Normal cylinder head DOHC; S – D-4S Gasoline direct injection; E – Multi-point fuel injection; 1KD-FTV 1KD – First model in the KD engine family; F – Normal cylinder head DOHC; T – Turbocharged; V – D-4D diesel common rail direct injection; The use of "G" to denote twin cam engines was decided on in 1971, with the renaming of ...
The 3T-GTE, first released in September 1982, is the most performance oriented version of the 1.8 L (1,770 cc) 3T engine. It features a hemi chambered 8v twin-cam head with twin-spark (two spark plugs per cylinder) design and swirl inlet ports for better efficiency. The EFI system saw the introduction of knock control.
In sidevalve engines the head is a simple plate of metal containing the spark plugs and possibly heat dissipation fins. In more modern overhead valve and overhead camshaft engines, the head is a more complicated metal block that also contains the inlet and exhaust passages, and often coolant passages, Valvetrain components, and fuel injectors.
The common valve spring system is satisfactory for traditional mass-produced engines that do not rev highly and are of a design that requires low maintenance. [1] At the period of initial desmodromic development, valve springs were a major limitation on engine performance because they would break from metal fatigue.
The cylinder head is composed of aluminum alloy and the intake manifold is made from aluminum. [5] 3RZ-FE in a Toyota Tacoma. Applications: [5] 1995–2004 Toyota Tacoma; 1996–2000 Toyota 4Runner; 1994–1998 Toyota T100; 1995–2002 Granvia; 1995–2004 Toyota Hilux; 1990–2004 Toyota HiAce; 2001–2009 Toyota Land Cruiser Prado [citation ...
A cam-in-block engine is where the camshaft is located in the engine block. Types of cam-in-block engines are: F-Head Engine; Flathead engine; Overhead valve engine (the only type where the valves are above the combustion chamber) T-head engine
It has the same bore and stroke as other 2AR engines but the cylinder head, cams, pistons and fuel management system are unique. Maximum thermal efficiency is about 38.5%. [11] The expansion ratio is 13.0 to 1. Output in the Toyota Crown hybrid combined is 164 kW (220 hp) at 6000 rpm and 221 N⋅m (163 lbf⋅ft) at 4200–5400 rpm. Applications: