Subaru EA Engine

Subaru ER engine
Subaru ER engine
Overview
Manufacturer	Subaru
Production	1988–1991
Layout
Configuration	flat-6 petrol engine
Displacement	2.7 L (2672 cc)
Cylinder bore	92 mm
Piston stroke	67 mm
блока цилиндров Материал	алюминий
головки цилиндра Материал	алюминий
Проснуться	SOHC
Сжигание
Тип топлива	Бензин/бензин
Выход
Выходная мощность	112 кВт (150 л.с.)
Хронология
Преемник	Subaru EG Engine

Subaru EA Engine
Subaru EA Engine
Обзор
Производитель	Субару
Production	1966–1994
Layout
Configuration	flat-four petrol engine
Valvetrain	OHV/SOHC
Combustion
Fuel type	Petrol/gasoline
Cooling system	water
Chronology
Successor	Subaru EJ engine

Двигатель Subaru EA - это серия автомобильных двигателей внутреннего сгорания, изготовленных Subaru , подразделением Fuji Heavy Industries . Все двигатели серии EA имеют дизайн Flat-4 и всегда были водяными.

Дизайн и история

Prior to 1966, Subaru was known for producing kei cars in Japan; for their first four-passenger model, the firm developed an air-cooled boxer engine for a prototype of the Subaru 1500 in 1960, but Fuji Heavy Industries was unable to continue development due to a shortage of funding. A new prototype front-wheel-drive car was built with a 923 cc (56 in³) water-cooled boxer engine, which became the basis for the Subaru 1000 and the EA-52 boxer engine. The car began sales to the public starting in 1966.^[1]

The EA series engines have aluminum heads with aluminum blocks. Each cylinder has two valves, one for exhaust and one for intake. They came in either an OHV pushrod or SOHC configuration.

Subaru produced the EA series from 1966 to 1994, and were found in the Subaru FF-1 Star, the Subaru Leone, the Subaru Brat (Brumby), the Subaru Loyale, the Subaru Omega (coupé), the Subaru Vortex, the Subaru RX, and the Subaru XT (Alcyone).

Summary of specifications
Model		Years	Size			Compression ratio	Valvetrain	Output
Model		Years	Displacement	Bore	Stroke	Compression ratio	Valvetrain	Power	Torque
EA-52		1966–1970	977.2 cc 60 in³	72 mm 2.8 in	60 mm 2.4 in	9.0:1	OHV Pushrod	55 hp 41 kW; 56 PS @ 6000	57 lb⋅ft 77 N⋅m @ 3200
EA-53		1967–1968	977.2 cc 60 in³	72 mm 2.8 in		10.0:1	OHV Pushrod, twin carburetor	67 hp 50 kW; 68 PS @ 6600	59 lb⋅ft; 80 N⋅m 8.2 kg⋅m @ 4600
EA-61		1969–1972	1,088 cc 66 in³	76 mm 3.0 in		8.5:1	OHV Pushrod	61 hp 45 kW; 62 PS @ 5600	65 lb⋅ft 88 N⋅m @ 4000
EA-62	(regular)	1971–1972	1,267.5 cc 77 in³	82 mm 3.2 in		9.0:1	OHV Pushrod	80 hp 60 kW; 81 PS @ 6400	73 lb⋅ft 99 N⋅m @ 4000
EA-62	EA-62S	1969–1972	1,267.5 cc 77 in³	82 mm 3.2 in		10.0:1	OHV Pushrod, twin carburetor	92 hp 69 kW; 93 PS @ 7000	76 lb⋅ft 103 N⋅m @ 5000
EA-63	(JDM)^[2]	1973–1979	1,361 cc 83 in³	85 mm 3.3 in		8.5:1	OHV Pushrod	71–77 hp 53–57 kW; 72–78 PS @ 6000	74–76 lb⋅ft 100–103 N⋅m @ 3600–4000
EA-63	(US)	1973–1976	1,361 cc 83 in³	85 mm 3.3 in		8.5:1	OHV Pushrod	58 hp 43 kW; 59 PS @ 5600	68 lb⋅ft 92 N⋅m @ 2400
EA-64		1973–1979	1,176 cc 72 in³	79 mm 3.1 in		9.0:1	OHV Pushrod	68 hp 51 kW; 69 PS @ 6000	69 lb⋅ft 94 N⋅m @ 3600
EA-65		1979–1994	1,298 cc 79 in³	83 mm 3.3 in		9.0:1	OHV Pushrod	65 hp 48 kW; 66 PS @ 5600	85 lb⋅ft 115 N⋅m @ 3200
EA-71	(JDM)	1976–1994	1,595 cc 97 in³	92 mm 3.6 in		9.0:1	OHV Pushrod chain drive	81–86 hp 60–64 kW; 82–87 PS @ 5600	87–89 lb⋅ft 118–121 N⋅m @ 3600
	EA-71S (JDM)	1976–1994					OHV Pushrod chain drive, twin carb	94 hp 70 kW; 95 PS @ 6400	89 lb⋅ft 121 N⋅m @ 4000
	(US)	1976–1979					OHV Pushrod chain drive	67 hp 50 kW; 68 PS @ 5200	81 lb⋅ft 110 N⋅m @ 2400
	(US)	1980–1987					OHV Pushrod	68 hp 51 kW; 69 PS @ 4800	84 lb⋅ft 114 N⋅m @ 2800
EA-72		never released				8.7:1	SOHC	not published
EA-81	(US)	1980–1994	1,781 cc 109 in³		67 mm 2.6 in	8.7:1	OHV Pushrod	73 hp 54 kW; 74 PS @ 4800	94 lb⋅ft 127 N⋅m @ 2400
	(EU)	1980–1994				8.7:1	OHV Pushrod	79–81 hp 59–60 kW; 80–82 PS @ 6000	97 lb⋅ft 132 N⋅m @ 2400
	EA-81T (turbo)	1983–1984				7.7:1	OHV Pushrod	95 hp 71 kW; 96 PS @ 4200	123 lb⋅ft 167 N⋅m @ 2800
EA-82	(carb)	1984–1994				8.7/9.0:1	SOHC, carburetor	84 hp 63 kW; 85 PS @ 5200	101 lb⋅ft 137 N⋅m @ 3200
	(SPFI)					9.0:1	SOHC, SPFI	90 hp 67 kW; 91 PS @ 5600	101 lb⋅ft 137 N⋅m @ 3200
	(MPFI)					9.5:1	SOHC, MPFI	97 hp 72 kW; 98 PS @ 5200	103 lb⋅ft 140 N⋅m @ 3200
	EA-82T (turbo) USA	1984–1990				7.7:1	SOHC, MPFI	111–115 hp 83–86 kW; 113–117 PS @ 5200	134 lb⋅ft 182 N⋅m @ 2800
	EA-82T (turbo) Europe/Japan	1984–1990				7.7:1	SOHC, MPFI	134–136 hp 100–101 kW; 136–138 PS @ 5200	145 lb⋅ft 197 N⋅m @ 2800
	EA82T (turbo) Works Group A/B	1984-1988				7.5:1	SOHC, MPFI	180–190 hp 134–142 kW; 182–193 PS @ 6450	170 lb⋅ft 230 N⋅m @ 5200

Models

EA-52

The Subaru EA-52 engine was produced from 1966 until 1970.

Found on

EA-53

The Subaru EA-53 was used in the 1967 Subaru 1000 Sports Sedan, sold in Japan. It used twin carburetors. This engine was used in the September 1968 Japan Alpine Rally which the car won in the 1000cc engine class.

EA-61

The Subaru EA-61 engine was produced from 1969 to 1972. The Japanese-spec Subaru FF-1 Sport Sedan and the FF-1 Super Touring sedan used twin carburetors, with the engine designation EA-61S. It was sold in the United States only for the 1971 model year.^[3] It was also briefly available in the first Leone, only in 1100 Van specification.

Found on

Subaru FF-1 Star
Subaru G
1972–197? Subaru Leone A21 Van

EA-62

The Subaru EA-62 engine was produced from 1971 to 1972. It is the only EA- engine with rear-facing exhaust ports.

Found on

Subaru G (1300G in United States)

EA-62S

This engine used twin carburetors from Zenith-Stromberg.

Found on

Subaru FF-1 1300G Sports Sedan and Super Touring (Japan)

EA-63

The Subaru EA-63 engine was produced from 1973 to 1979, although it stopped being used in US-market cars in 1976.

Found on

1973-1979 Subaru Leone

EA-64

The Subaru EA-64 engine was produced from 1973 to 1979. The engine disappeared from the sedan catalogs in September 1975, as the new emissions regulations would simply make the car too slow. As commercial vehicles didn't have to meet the new stricter regulations, it continued to be available in the Van 1200 Standard until the end of production of the first generation Leone in 1979.

Found on

1973-1975 Subaru Leone (sedan)
1973-1977 Subaru Leone (van) A25
1973-1979 Subaru Leone (van) A65^[2]

EA-65

The Subaru EA-65 engine was produced from 1975 to 1985

Found on

1975-1985 Subaru Leone for Japanese domestic market, Europe, Africa Asia and Latin America.
The only first sedan with a similar box body shape with same shape as the nissan model.
Equipped with an internal temperature control Ac different from the current compressor pump.
Had the two wheel drive for fuel efficiency the 1298 cc with options of 4wd.
In African market became the family car for major house hold nick named ("Mama Yao") meaning the mother of Subaru due to its unique speed and pick performance .
The very first edition with a speed clock of 220km/h display.
The Leone EA65 became an icon in the safari rally and hence was considered the best sedan model for off-road.

EA-71

The Subaru EA-71 engine was produced in two different designs; from 1976 to 1994, originally the first design was a redesign of the EA-63 block, known as the "Narrow Case EA71" then Subaru completely redesigned it to make the newer version known as "Fat Case EA71" which also led to a stroked version known as the EA81. The availability in USA for the EA71 ended in 1990 on the hatchback models. It came with a carburetor and the last editions for JDM featured throttle-body injection, found on the "Maia" editions of the third generation Subaru Leone. The engine came either with solid lifters or hydraulic lifters.

Found on

1976-1994 Subaru Leone
1978-1980 Subaru BRAT
1980-1990 Subaru Hatchback

EA-71S

This engine used twin Hitachi carburetors.

Found on

1979-1981 Subaru Hatchback
1979-1980 Subaru Brat
1979-1983 Subaru Manatee (Race car, JDM)

EA-72 Concept Engine

There was an unreleased EA-72 concept engine Subaru developed for use in the Japanese Market in 1989. It was essentially an EA-82 with an EA-71 crankshaft. This engine never came about as the Subaru EJ15 and EJ16 were already in development for this purpose.

Specifications

Displacement: 1,595 cc
Bore: 92 mm
Stroke: 60 mm
Compression Ratio: 8.7:1
Valvetrain: SOHC
Horsepower: unreleased
Torque: unreleased

EA-81

The Subaru EA-81 engine was produced from 1980 to 1994 and is a stroked version of the "Fat Case" EA-71 it came either with Solid Lifters or Hydraulic Lifters.

Found on

1980-1989 Subaru Leone
1981-1994 Subaru BRAT, Subaru Brumby
1980-1990 Subaru Hatchback

EA-81S

This engine used twin Hitachi carburetors on a single intake manifold, and the late version for the 1983 Safari Rally, featured two downdraft Weber Carburetors, each one mounted directly over each head. The Heads and Valvetrain on the EA81S engines are different from the regular counterparts, featuring different positions for the intake and exhaust valves on the Heads, feature known usually as Reverse Valves.

Found on

1980-1982 second gen Subaru Leone (Twin Hitachi Carbs)
1980-1982 Second Gen Subaru Brat, Subaru Brumby (Twin Hitachi Carbs).
1983 Subaru RX (Safari Rally Edition - Twin Weber Carbs)

EA-81T

The EA-81T is not an official engine designation from Subaru. The "T" is used informally to refer to the factory turbocharged version of EA-81 engines that are equipped with a turbocharger and multi port fuel injection. Boost pressure was 7 psi.

Found on

1983-1984 Subaru Leone
1983-1984 Subaru BRAT

EA-82

The Subaru EA-82 engine was originally intended to be a 2.0L engine as its prototypes were, but Subaru destroked it to 1.8L for production. The EA82 was produced from 1984 to 1994. It came either with carburetor, single point fuel injection, or multi port fuel injection and hydraulic lifters. Most of the technical advancements introduced to the EA82 were utilized in the next generation Subaru EJ engine, specifically, the SOHC valvetrain, and multi-point fuel injection.

Found on

1984-1994 Third generation of Subaru Leone, Subaru Loyale, Subaru Omega
1985-1991 Subaru XT / Alcyone / Vortex

EA-82T

The EA-82T engine was introduced in 1984 for the Third generation of Subaru Leone in the GL-10 and RX Turbo trim models plus the XT (Vortex), and later on the Subaru Leone RX Coupe models. It is a turbocharged version of the MPFI EA-82 with modified cylinder heads, lower compression pistons, and boost pressure of 7 psi

A revised intake known as the "Spider" manifold was available and is seen as an early version of the EJ style intake manifold.

ER27

The ER series is a flat-6 engine with a displacement of 2.7L manufactured by Subaru, a division of Fuji Heavy Industries. The ER series has aluminium engine blocks and aluminium cylinder heads. It is found on the 1988-1991 Subaru Alcyone VX (XT-6 in the United States).

Созданный в качестве изысканного роскошного двигателя с улучшенной мощностью по сравнению с EA82T, Subaru представила двигатель серии ER в 1988 году, который будет показан в Subaru Alcyone VX. Как и двигатели серии EA, двигатель серии ER имел 2-клапанные головки цилиндров с гидравлическими ресторанами ресниц, а блок разделял ту же отверстие и ход. Несмотря на то, что он признан много сходства с двигателем Subaru EA82, существует множество различий в дизайне между двумя двигателями, и большая часть деталей уникальна для ER27. Нефтяные и водяные насосы уникальны для ER27, разделяя сходные схемы болта и конструкцию с EA82, но в обоих случаях более высокий поток. ^{[ 4 ]} Впускной коллектор использует конструкцию с двумя частями с нижней частью секции к головкам, содержащим мост охлаждающей жидкости, форсунки и различные вакуумные линии. Верхний впускной коллектор затем болтает к нижней части и не похож на экологически чистые проекты «Паук» EA82 или EJ22 , в которой нет центральной камеры пленум. Система синхронизации клапана представляет собой ремень, используя два отдельных ремня ГРМ, любопытно, один пояс использует пружинный натяжитель (например, EA82), в то время как другой использует гидравлический натяник (например, EJ22 ). В версиях JDM и USDM ER27 использовались многоточечные электронные впрыска топлива. Обозначение ER27 было первым, когда Subaru включил смещение двигателя в название серии, и все будущие двигатели сохранили эту номенклатуру.

Ссылки

^ Эрнст, Курт (12 мая 2016 г.). «Boxer Engine Subaru празднует свою золотую годовщину» . Химингс . Получено 17 марта 2022 года .
^ Jump up to: ^а ^{беременный} 新型 Subaru Leone (Catalog) [ New Subaru Leone ] (на японском языке), Fuji Heavy Industries, июнь 1978 г.
^ Фламманг, Джеймс М. (1994). Стандартный каталог импортированных автомобилей, 1946-1990 . Иола, WI: Krause Publications, Inc. с. 588. ISBN 0-87341-158-7 .
^ «Различия нефтяного насоса и водяного насоса EA82-> ER27» . 16 марта 2010 г. Получено 2011-05-06 .

Руководство по обслуживанию завода Subaru 1977 года
1983 Руководство по обслуживанию Subaru Factory
1984 Руководство по обслуживанию Subaru Factory
1987/1988 Руководство по обслуживанию Subaru Factory
Журнал Subaru Drive

[1] Эрнст, Курт (12 мая 2016 г.). «Boxer Engine Subaru празднует свою золотую годовщину» . Химингс . Получено 17 марта 2022 года .

[Leone53.6-2] Jump up to: ^а ^{беременный} 新型 Subaru Leone (Catalog) [ New Subaru Leone ] (на японском языке), Fuji Heavy Industries, июнь 1978 г.

[scimp-3] Фламманг, Джеймс М. (1994). Стандартный каталог импортированных автомобилей, 1946-1990 . Иола, WI: Krause Publications, Inc. с. 588. ISBN 0-87341-158-7 .

[defactoleader-4] «Различия нефтяного насоса и водяного насоса EA82-> ER27» . 16 марта 2010 г. Получено 2011-05-06 .

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