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利用者:スランプ/sandbox

アルファロメオV6エンジン(通称ブッソV6)は、アルファロメオによって開発された、60度V型6気筒の自動車用ガソリンエンジンである。

1970年代前半、ジュゼッペブッソにより開発されて以来、1979年から2005年にかけ、改良が加えられながら長きにわたり生産された。すべてがオリジナルのアルファロメ製のエンジンとしては、最後のエンジンである。

アルファロメオV6エンジン(ブッソV6)
アルファロメオ 3.0 V6 24V
タイプ 60° V6
排気量 2.0 L; 121.8 cu in (1,996 cc)
2.5 L; 152.1 cu in (2,492 cc)
2.8 L; 169.9 cu in (2,784 cc)
2.9 L; 179.0 cu in (2,934 cc)
3.0 L; 180.6 cu in (2,959 cc)
3.2 L; 194.0 cu in (3,179 cc)
圧縮比 8.0:1 – 10.5:1
最高出力 97–184 kW (132–250 PS)
最大トルク 178–300 N⋅m (131–221 lb⋅ft)
テンプレートを表示
アルファロメオ166に搭載されている2.0L V6 12Vターボ仕様のブッソV6エンジン

The Alfa Romeo V6 engine (also called the Busso V6) is a 60° V6 engine made by Alfa Romeo from 1979 to 2005. It was developed in the early 1970s by Giuseppe Busso, and first used on the Alfa 6 with a displacement of 2.5 L (2,492 cc) and a SOHC 12-valve cylinder head. Later versions ranged from 1,996 - 3,179 cc (1.996 - 3.179 L) and had DOHC 24-valve valvetrains. The original design had short pushrods for the exhaust valves in a design similar to earlier Lancia Fulvia engines. The first DOHC version was in the 1993 Alfa Romeo 164, with an aluminium alloy engine block and head with sodium filled exhaust valves.


ブッソV6が初搭載されたモデルはAlfa6で、仕様は排気量2.5L(2,492cc)、SOHC12バルブであった。

その後改良が加えられ、排気量は2.0Lから3.2L(1.996cc-3.179cc)のバリエーションが存在する他、バルブトレーンはDOHC24バルブ仕様となった。DOHC仕様が初搭載されたのはアルファロメオ164で、エンジンブロックはアルミニウム製、排気バルブはナトリウム封入バルブが使用された。

The Alfa Romeo V6 has been used in kit cars like the Ultima GTR, Hawk HF Series, and DAX,[1][2][3] as well as the Gillet Vertigo sports car [4] and the Lancia Aurelia B20GT Outlaw.[5] In August 2011 EVO magazine wrote that "the original Alfa Romeo V6 was the most glorious-sounding six-cylinder road engine ever,"[6] and has been called the "Violin of Arese" or "Alfa's Violin".[7] The Alfa Romeo V6 engine has also been used in ice resurfacer made by engo Ltd. in Italy.[8]

ブッソV6はキットカーにも搭載され、Ultima GTR, Hawk HF Series, and DAX,[9][10][11] そして Gillet Vertigo sports car [12] や Lancia Aurelia B20GT Outlawに搭載された。

EVO magazineは2011年8月、「オリジナルのアルファロメオV6エンジン(ブッソV6)は、市販車用の6気筒エンジンとして最も素晴らしい音を奏でるエンジンである。」と評価しており、ブッソV6は「アレーゼのバイオリン」「アルファのバイオリン」とも呼ばれている。

ちなみに、ブッソV6はスケートリンク等の整備に用いられる整氷車(engo社製)にも搭載されている。


12V, two valve

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2.0

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A 2.0 L; 121.8 cu in (1,996 cc) version was introduced in 1983. Both carburetted 136 PS (100 kW; 134 hp) and fuel-injected 132 PS (97 kW; 130 hp) versions were available from the start.[13]

排気量2.0L(1,996cc)仕様は1983年に登場した。 136 PS (100 kW; 134 hp) のキャブレター仕様と、132 PS (97 kW; 130 hp)のインジェクション仕様の両方が初めから存在した。

Applications:

2.0 Turbo

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A 2.0 L; 121.8 cu in (1,996 cc) turbocharged version, derived from the 3.0 L 12v, first with total digital management, was introduced in 1991 in the Alfa Romeo 164 with 210 PS (154 kW; 207 hp).[14] The engine has a bore and stroke of 80 mm × 66.2 mm (3.15 in × 2.61 in). It was mainly intended for domestic market, due to Italian law at the time taxing cars with engines with larger displacement than two liters at a higher rate.

排気量2.0L(1996cc)ターボ仕様は、完全電子制御の3.0L 12V仕様をベースに開発され、1991年アルファロメオ164に搭載された。ボア×ストロークは80mm×66.2mmで、出力は210 PS (154 kW; 207 hp)。当時のイタリアでは2.0L以上の排気量では税率が高くなる税制であったことを踏まえ、おもにイタリア国内向けとして開発された仕様である。

Applications:

2.5

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Longitudinal 2.5L in a GTV6

The original engine displaced 2.5 L; 152.1 cu in (2,492 cc) and produced 158 PS (116 kW; 156 hp).[13] It was a 2-valve-per-cylinder design with a single belt-driven camshaft per cylinder bank and six carburettors. The engine has a bore and stroke of 88 mm × 68.3 mm (3.46 in × 2.69 in).

The Bosch L-Jetronic fuel injection was added for the 1983 Alfa 6, which produced the same 158 PS (116 kW; 156 hp).[13] The 2-valve engine ended its life in the Alfa 155, where there were two series for this engine, the 2.5 L; 152.1 cu in (2,492 cc) developing 166 PS (122 kW; 164 hp).[要出典] Differences between them were small and only on torque and power delivery producing exactly the same horsepower.

Applications:

2.8 Gleich

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In 1982, the German Alfa Romeo dealer and tuner Gleich offered a 2.8 conversion of the GTV6 2.5 engine. Dieter Gleich was sure that engine displacement enlargement is still the best and, for the life of the engine, the healthiest way of tuning. The engine capacity was increased to nearly 2.8 liters by using new bushings and custom-built forged Mahle pistons while the compression ratio was raised from 9.5 to 10.5:1. The 2.5 liter was rebored to 93 mm (3.66 in). Total displacement was 2,783.7 cc (2.8 L). Power produced were 191 PS (140 kW; 188 hp) at 6,300 rpm and torque 24.6 kg⋅m (241 N⋅m; 178 lbf⋅ft) at 4200 rpm.[17]

The magazine "Sport driver" tested a 2.8 Gleich powered GTV6 in June 1982:

"After engaging the first gear and a somewhat careless step on the gas pedal you get a touched feel to the epiphany GTV6 shot, accompanied by the typical Alfa Romeo exhaust sound. It was a pleasure. The fact was the sprint from 0 to 100 km/h (62 mph) is not further under the seven-second limited by a tricky-to-be-shifted five-speed gearbox. The really vehement propulsion waned only when the speedometer 230 km/h (143 mph) mark has left behind. Another eye-opening experience awaits when you realize that the lightning speed to 7000 rpm rotating in any gear pinion even in fifth gear still from 1500 rpm is completely smooth."

Applications:

  • 1982 Alfa Romeo Alfetta GTV6 2.8 Gleich

3.0 SA (Autodelta)

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The original 2.5 engine as used in the Alfa 6 was bored and stroked by Autodelta, the former Alfa Romeo racing department to match the racing rules for South African and Australian championships. Bore was increased from 88 mm (3.46 in) to 93 mm (3.66 in) and a new crankshaft stroked to 72 mm (2.83 in). The total displacement was 2,934.5 cc (2.9 L) and it's a totally different engine from the later 2,959 cc (3.0 L) that powered the 75/Milano models. It was, too, a 2-valve-per-cylinder design with a single belt-driven camshaft per cylinder bank and six carburettors. Special camshafts and carbs were used giving a power figure of 176.4 PS (130 kW; 174 hp)[要出典] at 5800 rpm. Torque was 222 N⋅m (164 lb⋅ft)[要出典] at 4300 rpm, while compression ratio was 9:1.

Only 174 complete GTV6 3.0 SA cars were produced in 1984 plus 68 more in 1985. the last ones were fitted with EFI.

The 3.0 GTV6 was sold in South Africa in 1983–1985, predating the release of the 3.0 L displacement to the rest of the world.[18] This engine was an Autodelta hand made conversion based on Alfa Sei 2.5 carburated engines enlarged to bore and stroke of 93 mm × 72 mm (3.7 in × 2.8 in).[18][19]

Applications:

3.0

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Pulled by the racing success of the 3.0 SA engine and looking for more power to boost 75/Milano sales in countries like USA, Alfa Romeo introduced a production version of the 3.0 engine. Bore was 93 mm (3.66 in), as the 3.0 SA, but stroke was increased to 72.6 mm (2.86 in). The total displacement was 2,959 cc (3.0 L). As the previous engines, it was a 2-valve-per-cylinder design with a single belt-driven camshaft per cylinder bank. The main difference with the racing 3.0 SA was the use of modern L-Jetronic fuel injection system by Bosch. Power figures vary from 188 PS (138 kW; 185 hp) to 192 PS (141 kW; 189 hp) at 5800 rpm,[要出典] with compression ratio 9:1.

This engine was modified for transverse placement in the 164 and fitted with a high-performance camshaft and low-restriction exhaust, producing 192 PS (141 kW; 189 hp) in standard form, 184 PS (135 kW; 181 hp) when a catalyzer was added in 1991, with the Cloverleaf version producing 200 PS (147 kW; 197 hp).[要出典]

The same engine was fitted to the SZ and RZ - ES30 Zagato, but even more finely tuned with wilder cams and high compression pistons to a further 210 PS (154 kW; 207 hp).[20]

Applications:

  1. ^ Last run wins King of the Mountain”. iol.co.za (2006年). 2012年6月10日閲覧。
  2. ^ Hawk HF2000/HF3000 Series”. hawkcars.co.uk. 2009年4月5日閲覧。
  3. ^ DAX Rush Specifications”. daxbenelux.com. 2009年2月27日時点のオリジナルよりアーカイブ。2009年4月5日閲覧。
  4. ^ Gillett Vertigo Streiff: A body to match its Alfa Romeo heart”. autoblog.com. 2009年4月5日閲覧。
  5. ^ https://www.thornleykelham.com/wp-content/uploads/2022/03/The-final-3-Outlaws.pdf
  6. ^ EVO Magazine August 2011 page 77
  7. ^ Licata, Matteo (2021年3月24日). “The Story Of Alfa’s Violin” (英語). Roadster Life. 2022年12月5日閲覧。
  8. ^ ICE PROFI: Engo 270 SX | ICE PROFI, accessdate: 26. October 2019
  9. ^ Last run wins King of the Mountain”. iol.co.za (2006年). 2012年6月10日閲覧。
  10. ^ Hawk HF2000/HF3000 Series”. hawkcars.co.uk. 2009年4月5日閲覧。
  11. ^ DAX Rush Specifications”. daxbenelux.com. 2009年2月27日時点のオリジナルよりアーカイブ。2009年4月5日閲覧。
  12. ^ Gillett Vertigo Streiff: A body to match its Alfa Romeo heart”. autoblog.com. 2009年4月5日閲覧。
  13. ^ a b c ELABORARE: Motore Alfa Romeo V6 - ELABORARE, accessdate: 14. September 2018
  14. ^ Boitier Rouge: Alfa Romeo 164 : la meilleure des « Tipo 4 » ? | Boitier Rouge, accessdate: 14. September 2018
  15. ^ Rayton Fissore Magnum V6 (1987–1989)” (フランス語). 4rouesmotrices.com. 2010年5月9日閲覧。
  16. ^ This AC 3000 ME MkII Prototype Is The British Lancia Stratos You Never Knew You Wanted • Petrolicious: This AC 3000 ME MkII Prototype Is The British Lancia Stratos You Never Knew You Wanted • Petrolicious, accessdate: 26. January 2020
  17. ^ Classic Cars: Alfa Romeo GTV6 2.8 specificaties en info - Classic Cars, accessdate: 14. September 2018
  18. ^ a b CAR magazine: CLASSIC BUY: Alfa Romeo GTV6 (1982-1985) - CAR magazine, accessdate: 14. September 2018
  19. ^ topCar magazine online: Alfa 3.0 GTV6 | topCar magazine online, accessdate: 14. September 2018
  20. ^ Fast Classics: Alfa Romeo S.Z. | Fast Classics, accessdate: 26. October 2019