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gave info about the 3.2 S and the 3200 S, turned Frazer-Nash and Talbot-Lago sections into subsections of a "Use by other manufacturers" section
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| aka =
| aka =
| production =1954–1965
| production =1954–1965
| predecessor =
| predecessor =[[BMW M335]]
| successor =[[BMW M60]]
| successor =size: [[BMW M30]]<br /> configuration: [[BMW M60]]
| configuration =[[OHV]] [[V8 engine|V8]], 16 valves
| configuration =[[OHV]] [[V8 engine|V8]], 16 valves
| displacement =2.6&nbsp;L: {{Convert|2580|cc|cuin|abbr=on}}<br>3.2&nbsp;L: {{Convert|3168|cc|cuin|abbr=on}}
| displacement =2.6&nbsp;L: {{Convert|2580|cc|cuin|abbr=on}}<br>3.2&nbsp;L: {{Convert|3168|cc|cuin|abbr=on}}
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}}
}}


The '''BMW OHV V8 engine''' was the first [[V8 engine]] made by [[BMW]]. It was produced from 1954 to 1965, and was designed by Alfred Böning.<ref name="Norbye90">[[#Norbye|Norbye, Jan P., ''BMW - Bavaria's Driving Machines'']], p. 90</ref> This engine is usually named by the fact that it was the only pushrod-driven [[overhead valve]] V8 ever produced by BMW. All subsequent BMW V8 engines would use [[DOHC|double overhead camshafts]] and [[fuel injection]], but the development of the next V8 engine by BMW would not take place for more than three and a half decades.<ref>http://www.theautochannel.com/vehicles/new/reviews/wk9437.html BMW 840Ci</ref>
The '''BMW OHV V8 engine''' was the first [[V8 engine]] made by [[BMW]]. This engine is usually named by the fact that it was the only pushrod-driven [[overhead valve]] V8 ever produced by BMW. All subsequent BMW V8 engines would use [[DOHC|double overhead camshafts]] and [[fuel injection]], but the development of the next V8 engine by BMW would not take place for more than three and a half decades.<ref>http://www.theautochannel.com/vehicles/new/reviews/wk9437.html BMW 840Ci</ref>


==Introduction==
==Introduction==
The [[BMW 501]] was a larger and heavier car than BMW had ever made before when it premiered in 1952, and it was the first BMW car made in [[West Germany]] after a long hiatus after [[World War II]]. However, it was powered with an elderly [[straight-6]] from before the war, and though power was increased to {{convert|65|hp|kW}},<ref>http://www.globalcar.com/datasheet/BMW/1952_BMW_501.htm Details on BMW 501</ref> it was a sluggish performer. Their primary competitor, [[Mercedes-Benz]], fielded the [[Mercedes-Benz W187|W187]] in the same class but with superior performance. In order to reassert their status as the producer of sporty sedans, BMW debuted a 501 with a [[pushrod]] V8 engine. This was called the [[BMW 502]]. This V8 engine was available in 2.6&nbsp;L (157&nbsp;in<sup>3</sup>) and 3.2&nbsp;L (193&nbsp;in<sup>3</sup>) form.
The [[BMW 501]] was the first car made by BMW after [[World War II]]. Upon its introduction in 1951, it was the largest and heaviest car BMW had made.{{citation needed|date=November 2013}} It was powered by a [[BMW M337|straight-6 engine]] based on a [[BMW M78|pre-war design]], and though power was increased to {{convert|65|hp|kW}},<ref>http://www.globalcar.com/datasheet/BMW/1952_BMW_501.htm Details on BMW 501</ref><ref name="Noakes46" /> it was a sluggish performer. Their primary competitor, [[Mercedes-Benz]], fielded the [[Mercedes-Benz W187|W187]] in the same class but with superior performance.<ref name="Noakes46">[[#Noakes|Noakes, Andrew, ''The Ultimate History of BMW'']], p. 46</ref>


Alfred Böning, BMW's chief engineer at the time, realized that the 501's engine would not be powerful enough. He got permission to design a new, larger engine for the 501, and began the design and development of the V8 engine. The design was finalized by [[Fritz Fiedler]] when he returned to BMW in 1952.<ref name="Norbye90">[[#Norbye|Norbye, Jan P., ''BMW - Bavaria's Driving Machines'']], p. 90</ref>
==Details==
The engine was an [[aluminum]] alloy, [[Longitudinal engine|longitudinally-mounted]] 90° V8. The original version had a {{convert|74.0|mm|in}} [[Bore (engines)|bore]] and a {{convert|75.0|mm|in}} [[Stroke (engine)|stroke]], giving a displacement of {{Convert|2580|cc|cuin}} and a power output of {{convert|100|hp|kW}} with a two barrel Solex carburettor.<ref name="Norbye91">[[#Norbye|Norbye]], p. 91</ref> A larger version was introduced in 1955; the bore was increased to {{convert|82.0|mm|in}}, resulting in a {{convert|3168|cc|cuin}} displacement.<ref name="Norbye93">[[#Norbye|Norbye]], p. 93</ref> The larger engine initially produced {{convert|120|hp|kW}}, but was later available in higher states of tune with power ratings up to {{convert|160|hp|kW}}.<ref name="Norbye93" /> Commonly fed through [[Zenith Carburetters|Zenith]] carburettors,<ref name="Norbye93" /> the engine was good for 5900-6500 rpm in its various configurations.{{Citation needed|date=June 2010}}


In order to reassert their status as the producer of sporty sedans, BMW debuted a version of the 501 sedan with a V8 engine. This was called the [[BMW 502]]. This V8 engine was available in 2.6&nbsp;L (157&nbsp;in<sup>3</sup>) and 3.2&nbsp;L (193&nbsp;in<sup>3</sup>) form.
==BMW 502==

==Details and specifications==
The engine was an [[aluminium|aluminum]] alloy, [[Longitudinal engine|longitudinally-mounted]] 90° V8 with cast iron wet liners and stiffening webs between the cylinders.<ref name="Noakes48">[[#Noakes|Noakes]], p. 48</ref> Apart from the materials, the engine was similar in overall design to Cadillac and Oldsmobile V-8 designs from the late 1940s, with a central camshaft using [[pushrod]]s to operating [[overhead valve]]s in crossflow cylinder heads with wedge-shaped combustion chambers.<ref name="Norbye90" /><ref name="Noakes48" /> The original version had a {{convert|74.0|mm|in}} [[Bore (engines)|bore]] and a {{convert|75.0|mm|in}} [[Stroke (engine)|stroke]], giving a displacement of {{Convert|2580|cc|cuin}} and a power output of {{convert|100|hp|kW PS}} with a two barrel Solex 30 PAAJ carburettor and a compression ratio of 7.0:1.<ref name="Norbye91">[[#Norbye|Norbye]], p. 91</ref><ref name="Noakes49">[[#Noakes|Noakes]], p. 49</ref>

A larger version was introduced in 1955; the bore was increased to {{convert|82.0|mm|in}}, resulting in a displacement of {{convert|3168|cc|cuin}}. The larger engine initially produced {{convert|120|hp|kW}} with a single [[Zenith Carburetters|Zenith]] 32&nbsp;mm carburetor and a compression ratio of 7.2:1, , but was later available in higher states of tune, with power ratings reaching {{convert|160|hp|kW}} in the 3200 S in 1961.<ref name="Norbye93">[[#Norbye|Norbye]], p. 93</ref>

===2.6&nbsp;L use and tune===
{{main|BMW 501}}
{{main|BMW 501}}
The original 2.6&nbsp;L version of the engine was developed for the [[BMW 502]] and was introduced with it in 1954.<ref name="Norbye92">[[#Norbye|Norbye]], p. 92</ref> A detuned version of the 2.6&nbsp;L engine was available in the [[BMW 501|501 V8]] of 1955.<ref name="Norbye92" /> The 3.2&nbsp;L engine was developed in 1956, and was offered in the 502 from that year on.<ref name="Norbye93" /><ref>http://www.motorbase.com/profiles/vehicle/index.ehtml?i=432 Motorbase: BMW 502</ref> It was initially rated at {{convert|120|hp|abbr=on}}, but ultimately was upgraded and produced up to {{convert|160|hp|abbr=on}} in the 3200 S version. The 501/502 range was discontinued in 1964.<ref name="Norbye93" />
The original 2.6&nbsp;L version of the engine was developed for the [[BMW 502]] and was introduced with it in 1954.<ref name="Noakes48" /><ref name="Norbye92">[[#Norbye|Norbye]], p. 92</ref> A {{{convert|95|hp|kW PS}} version of this engine was available in the [[BMW 501|501 V8]] of 1955.<ref name="Norbye92" /><ref name="Norbye250_51">[[#Norbye|Norbye]], pp. 250-251</ref> In 1958, the 501 V8 and 502 were renamed the 2.6 and 2.6 Luxus respectively, with no changes in engine specification.<ref name="Norbye93" /><ref name="Norbye250_51" />.

In the summer of 1961, the 2.6&nbsp;L engines were uprated with the Zenith 32 NDIX carburetor from the earlier 3.2$nbsp;L engines and a 7.5:1 compression ratio. With this upgrade, the 2.6 became the {{convert|100|hp|kW PS}} 2600 and the 2.6 Luxus became the {{convert|100|hp|kW PS}} 2600 L. These cars continued in production until December 1963<ref name="Suche2600">[[#BMWHistory|BMW History]], with searches for "2600" and "2600 L"</ref>

{| class=wikitable
|+Models with 2.6&nbsp;L engines<ref name="SucheModelle">[[#BMWHistory|BMW History]], with searches for data on individual models</ref>
|-
! Models !! Carburettors !! Compression ratio !! Power !! Year
|-
|502|| Solex 30 PAAJ x 1 || 7.0:1 || {{Convert|100|bhp|kW PS|0|abbr=on}} at 4800 rpm ||1954–1958
|-
|501 V8|| Solex 30 PAAJ x 1 || 7.0:1 || {{Convert|95|bhp|kW PS|0|abbr=on}} at 4800 rpm ||1955–1958
|-
|2.6|| Solex 30 PAAJ x 1 || 7.0:1 || {{Convert|95|bhp|kW PS|0|abbr=on}} at 4800 rpm ||1958–1961
|-
|2.6 Luxus|| Solex 30 PAAJ x 1 || 7.0:1 || {{Convert|100|bhp|kW PS|0|abbr=on}} at 4800 rpm ||1958–1961
|-
|2600|| Zenith 32 NDIX x 1 || 7.5:1 || {{Convert|100|bhp|kW PS|0|abbr=on}} at 4800 rpm ||1961–1963
|-
|2600 L|| Zenith 32 NDIX x 1 || 7.5:1 || {{Convert|110|bhp|kW PS|0|abbr=on}} at 4900 rpm ||1961–1963
|}

===3.2&nbsp;L use and tune===
⚫
{{main|BMW 501}}
⚫
{{see also|BMW 503}}
{{see also|BMW 507}}
⚫
{{see also|BMW 3200 CS}}
The 3.2&nbsp;L engine was developed in 1956, and was offered in the 502-based 3.2 from then until 1961.<ref name="Norbye93" /><ref>http://www.motorbase.com/profiles/vehicle/index.ehtml?i=432 Motorbase: BMW 502</ref>

BMW's V8 sports models, the [[BMW 503|503]] and [[BMW 507|507]], used 3.2&nbsp;L engines, each with a pair of [[Zenith Carburetters|Zenith]] 32NDIX two-barrel carburetors. With these, and a compression ratio of 7.5:1, the 503's engine produced {{convert|140|hp|kW}} at 5000 rpm. The tuning of the 507's engine went further, with high-lift cams, a different spark advance curve, polished combustion chamber surfaces, and a compression ratio of 7.8:1, producing {{convert|150|hp|kW PS}} at 5000 rpm.<ref name="Norbye113">[[#Norbye|Norbye]], p. 113</ref> Both models were discontinued in March 1959.<ref name="Norbye115">[[#Norbye|Norbye]], p. 115</ref>


⚫
The two-carburetor engine from the 503 was used in the 502-based 3.2 Super from 1957 to 1961.<ref name="K3p2Super">[[#K502Limo|BMW Konzernarchiv - BMW 502 Limousine]] - BMW 502 3,2 Litre Super (also - BMW 3,2 Super)</ref>
==BMW 503==
⚫
{{main|BMW 503}}
The [[BMW 503]] was offered from May 1956 to March 1959.<ref name="ConceptCarz503" /> The 503 used the 3.2&nbsp;L engine with two [[Zenith Carburetters|Zenith]] 32NDIX two-barrel carburetors and a compression ratio of 7.5:1, which produced {{convert|140|hp|kW}}.<ref name="Norbye113">[[#Norbye|Norbye]], p. 113</ref> Mated to a four-speed [[manual transmission|manual]], the relatively heavy grand tourer achieved 0-{{convert|100|km/h|mph}} in about 12 seconds and a top speed of around {{convert|120|mph|km/h}}.<ref name="ConceptCarz503">[http://www.conceptcarz.com/vehicle/z5942/BMW_503.aspx ConceptCarz: BMW 503]</ref>


The single-carburetor 3.2 and two-carburetor 3.2 Super were replaced in 1961 with the {{convert|140|hp|kW}} 3200 L and the {{convert|160|hp|kW}} 3200 S respectively.<ref name="Norbye93" /> The increase in power came from larger Zenith 36 NDIX carburetors and a compression ratio of 9.0:1<ref name="Suche3200">[[#BMWHistory|BMW History]], with searches for "3200 L" and "3200 S"</ref>
⚫
The two-carburetor engine from the 503 was used in the 502-based 3.2 Super.<ref name="K3p2Super">[[#K502Limo|BMW Konzernarchiv - BMW 502 Limousine]] - BMW 502 3,2 Litre Super (also - BMW 3,2 Super)</ref>


Production of V8 sedans ended in 1963,<ref name="Norbye93" /> but the engine from the 3200 S was used in the [[BMW 3200 CS|3200 CS]] coupé from January 1962 to September 1965.<ref name="Norbye131_32">[[#Norbye|Norbye]], pp. 131-132</ref>
==BMW 507==
⚫
{{main|BMW 507}}
The iconic and extremely expensive [[BMW 507]] roadster, produced from 1956 to 1959, was offered with the 3.2&nbsp;L engine producing {{convert|150|hp|kW}}, with a more tuned {{convert|160|hp|kW}} version available.<ref>[http://www.ultimatecarpage.com/car/51/BMW-507.html Ultimate Car Page: BMW 507]</ref> The engine had the twin Zenith carburetors as used on the 503, along with high-lift cams, a different spark advance curve, polished combustion chamber surfaces, and a compression ratio of 7.8:1.<ref name="Norbye113" /> With more power and a lighter body, the 507's performance was fairly good, with 0-60&nbsp;mph achieved in under 10 seconds and a top speed, depending on gearing, of {{convert|141|mph|km/h}}. However, the car's stratospherically high price made it extremely exclusive and almost ruined the company due to the cost of production and slow sales.


{| class=wikitable
==BMW 3200 CS==
|+Models with 3.2&nbsp;L engines<ref name="SucheModelle">[[#BMWHistory|BMW History]], with searches for data on individual models</ref>
⚫
{{main|BMW 3200 CS}}
|-
In its final incarnation, the 3.2&nbsp;L engine powered the [[BMW 3200 CS|3200 CS]]. The engine, sourced from the 3200S saloon,<ref name="Norbye131">[[#Norbye|Norbye]], p.131</ref> produced {{convert|160|hp|kW}}.<ref>[http://www.globalcar.com/datasheet/BMW/1962_BMW_3200_CS_Coupe.htm Details on 3200 CS Coupé]</ref> When this vehicle was taken off the market in 1965, it was the end of an era for BMW, as changing market trends such as the successful [[BMW New Class]] positioned it downmarket, and left the company with little interest in low-volume exclusive coupés. BMW would not make another car powered by a V8 engine until the [[BMW 8-Series|BMW 840i]] in 1991.
! Models !! Carburettors !! Compression ratio !! Power !! Year
|-
|502 3.2 litre|| Zenith 32 NDIX x 1 || 7.2:1 || {{Convert|120|bhp|kW PS|0|abbr=on}} at 4900 rpm ||1955–1958
|-
|503|| Zenith 32 NDIX x 2 || 7.3:1 || {{Convert|140|bhp|kW PS|0|abbr=on}} at 4800 rpm ||1956–1960
|-
|507|| Zenith 32 NDIX x 2 || 7.8:1 || {{Convert|150|bhp|kW PS|0|abbr=on}} at 5000 rpm ||1956–1959
|-
|502 3.2 litre Super|| Zenith 32 NDIX x 2 || 7.3:1 || {{Convert|140|bhp|kW PS|0|abbr=on}} at 4800 rpm ||1957–1958
|-
|3.2|| Zenith 32 NDIX x 1 || 7.2:1 || {{Convert|120|bhp|kW PS|0|abbr=on}} at 4800 rpm ||1958–1961
|-
|3.2 Super|| Zenith 32 NDIX x 2 || 7.3:1 || {{Convert|140|bhp|kW PS|0|abbr=on}} at 4800 rpm ||1958–1961
|-
|3200 L|| Zenith 36 NDIX x 1 || 9.0:1 || {{Convert|140|bhp|kW PS|0|abbr=on}} at 5400 rpm ||1961–1963
|-
|3200 S|| Zenith 36 NDIX x 2 || 9.0:1 || {{Convert|160|PS|kW|0|abbr=on}} at 5600 rpm ||1961–1963
|-
|3200 CS|| Zenith 36 NDIX x 2 || 9.0:1 || {{Convert|160|PS|kW|0|abbr=on}} at 5600 rpm ||1962–1965
|}


==Use by other manufacturers==
==Use by other manufacturers==
Line 72: Line 123:


;Sources
;Sources
*{{cite book|last= Noakes |first= Andrew |authorlink=Andrew Noakes|title= The Ultimate History of BMW |year= 2005 |publisher= Parragon Publishing |location= Bath, UK |isbn=1-4054-5316-8 |ref=Noakes}}
*{{cite book|last= Norbye|first= Jan P.|title= BMW - Bavaria's Driving Machines |year= 1984 |publisher= Publications International |location= Skokie, IL, USA |isbn= 0-517-42464-9 |lccn= 84-60309 |chapter= Postwar Panache: Baroque Angels, Timeless Sports Cars |ref=Norbye}}
*{{cite book|last= Norbye|first= Jan P.|title= BMW - Bavaria's Driving Machines |year= 1984 |publisher= Publications International |location= Skokie, IL, USA |isbn= 0-517-42464-9 |lccn= 84-60309 |chapter= Postwar Panache: Baroque Angels, Timeless Sports Cars |ref=Norbye}}
*{{cite web |url= http://www.bmw-classic.com/produktkatalog/model_overview.php?keyBr=330&keySp=147729&keyEp=Nachkrieg&slep=4|title= BMW 502 &ndash; BMW 502 Limousine|author=<!--Staff writer(s); no by-line.-->|website= [http://www.bmw-classic.com/2/webmill.php?fx=g&id=630050 BMW Classic] |language= German |trans_title= |type= corporate history site|accessdate= 2013-11-24|quote= |ref= K502Limo}}
*{{cite web |url= http://www.bmw-classic.com/produktkatalog/model_overview.php?keyBr=330&keySp=147729&keyEp=Nachkrieg&slep=4|title= BMW 502 &ndash; BMW 502 Limousine|author=<!--Staff writer(s); no by-line.-->|website= [http://www.bmw-classic.com/2/webmill.php?fx=g&id=630050 BMW Classic] |language= German |trans_title= |type= corporate history site|accessdate= 2013-11-24|quote= |ref= K502Limo}}
*{{cite web |url= http://www.bmw-classic.com/2/webmill.php?fx=g&id=630111|title= BMW History|author=<!--Staff writer(s); no by-line.--> |date= |website= [http://www.bmw-classic.com/2/webmill.php?fx=g&id=630050 BMW Classic]|publisher= BMW AG|accessdate=25 November 2013|ref= BMWHistory}}


{{BMW motor vehicle engine timeline, 1950s–1980s}}
{{BMW motor vehicle engine timeline, 1950s–1980s}}

Revision as of 03:24, 25 November 2013

BMW OHV V8 engine
Overview
ManufacturerBMW
Production1954–1965
Layout
ConfigurationOHV V8, 16 valves
Displacement2.6 L: 2,580 cc (157 cu in)
3.2 L: 3,168 cc (193.3 cu in)
Cylinder bore2.6 L: 74 mm (2.9 in)
3.2 L: 82 mm (3.2 in)
Piston stroke75 mm (3.0 in)
Cylinder block materialaluminium alloy with cast iron cylinder liners
Cylinder head materialaluminium alloy
ValvetrainOHV
Combustion
Fuel typepetrol
Cooling systemliquid cooled
Chronology
PredecessorBMW M335
Successorsize: BMW M30
configuration: BMW M60

The BMW OHV V8 engine was the first V8 engine made by BMW. This engine is usually named by the fact that it was the only pushrod-driven overhead valve V8 ever produced by BMW. All subsequent BMW V8 engines would use double overhead camshafts and fuel injection, but the development of the next V8 engine by BMW would not take place for more than three and a half decades.[1]

Introduction

The BMW 501 was the first car made by BMW after World War II. Upon its introduction in 1951, it was the largest and heaviest car BMW had made.[citation needed] It was powered by a straight-6 engine based on a pre-war design, and though power was increased to 65 horsepower (48 kW),[2][3] it was a sluggish performer. Their primary competitor, Mercedes-Benz, fielded the W187 in the same class but with superior performance.[3]

Alfred Böning, BMW's chief engineer at the time, realized that the 501's engine would not be powerful enough. He got permission to design a new, larger engine for the 501, and began the design and development of the V8 engine. The design was finalized by Fritz Fiedler when he returned to BMW in 1952.[4]

In order to reassert their status as the producer of sporty sedans, BMW debuted a version of the 501 sedan with a V8 engine. This was called the BMW 502. This V8 engine was available in 2.6 L (157 in3) and 3.2 L (193 in3) form.

Details and specifications

The engine was an aluminum alloy, longitudinally-mounted 90° V8 with cast iron wet liners and stiffening webs between the cylinders.[5] Apart from the materials, the engine was similar in overall design to Cadillac and Oldsmobile V-8 designs from the late 1940s, with a central camshaft using pushrods to operating overhead valves in crossflow cylinder heads with wedge-shaped combustion chambers.[4][5] The original version had a 74.0 millimetres (2.91 in) bore and a 75.0 millimetres (2.95 in) stroke, giving a displacement of 2,580 cubic centimetres (157 cu in) and a power output of 100 horsepower (75 kW; 100 PS) with a two barrel Solex 30 PAAJ carburettor and a compression ratio of 7.0:1.[6][7]

A larger version was introduced in 1955; the bore was increased to 82.0 millimetres (3.23 in), resulting in a displacement of 3,168 cubic centimetres (193.3 cu in). The larger engine initially produced 120 horsepower (89 kW) with a single Zenith 32 mm carburetor and a compression ratio of 7.2:1, , but was later available in higher states of tune, with power ratings reaching 160 horsepower (120 kW) in the 3200 S in 1961.[8]

2.6 L use and tune

Main article: BMW 501

The original 2.6 L version of the engine was developed for the BMW 502 and was introduced with it in 1954.[5][9] A {95 horsepower (71 kW; 96 PS) version of this engine was available in the 501 V8 of 1955.[9][10] In 1958, the 501 V8 and 502 were renamed the 2.6 and 2.6 Luxus respectively, with no changes in engine specification.[8][10].

In the summer of 1961, the 2.6 L engines were uprated with the Zenith 32 NDIX carburetor from the earlier 3.2$nbsp;L engines and a 7.5:1 compression ratio. With this upgrade, the 2.6 became the 100 horsepower (75 kW; 100 PS) 2600 and the 2.6 Luxus became the 100 horsepower (75 kW; 100 PS) 2600 L. These cars continued in production until December 1963[11]

Models with 2.6 L engines[12]
Models Carburettors Compression ratio Power Year
502 Solex 30 PAAJ x 1 7.0:1 100 bhp (75 kW; 101 PS) at 4800 rpm 1954–1958
501 V8 Solex 30 PAAJ x 1 7.0:1 95 bhp (71 kW; 96 PS) at 4800 rpm 1955–1958
2.6 Solex 30 PAAJ x 1 7.0:1 95 bhp (71 kW; 96 PS) at 4800 rpm 1958–1961
2.6 Luxus Solex 30 PAAJ x 1 7.0:1 100 bhp (75 kW; 101 PS) at 4800 rpm 1958–1961
2600 Zenith 32 NDIX x 1 7.5:1 100 bhp (75 kW; 101 PS) at 4800 rpm 1961–1963
2600 L Zenith 32 NDIX x 1 7.5:1 110 bhp (82 kW; 112 PS) at 4900 rpm 1961–1963

3.2 L use and tune

Main article: BMW 501
See also: BMW 503
See also: BMW 507
See also: BMW 3200 CS

The 3.2 L engine was developed in 1956, and was offered in the 502-based 3.2 from then until 1961.[8][13]

BMW's V8 sports models, the 503 and 507, used 3.2 L engines, each with a pair of Zenith 32NDIX two-barrel carburetors. With these, and a compression ratio of 7.5:1, the 503's engine produced 140 horsepower (100 kW) at 5000 rpm. The tuning of the 507's engine went further, with high-lift cams, a different spark advance curve, polished combustion chamber surfaces, and a compression ratio of 7.8:1, producing 150 horsepower (110 kW; 150 PS) at 5000 rpm.[14] Both models were discontinued in March 1959.[15]

The two-carburetor engine from the 503 was used in the 502-based 3.2 Super from 1957 to 1961.[16]

The single-carburetor 3.2 and two-carburetor 3.2 Super were replaced in 1961 with the 140 horsepower (100 kW) 3200 L and the 160 horsepower (120 kW) 3200 S respectively.[8] The increase in power came from larger Zenith 36 NDIX carburetors and a compression ratio of 9.0:1[17]

Production of V8 sedans ended in 1963,[8] but the engine from the 3200 S was used in the 3200 CS coupé from January 1962 to September 1965.[18]

Models with 3.2 L engines[12]
Models Carburettors Compression ratio Power Year
502 3.2 litre Zenith 32 NDIX x 1 7.2:1 120 bhp (89 kW; 122 PS) at 4900 rpm 1955–1958
503 Zenith 32 NDIX x 2 7.3:1 140 bhp (104 kW; 142 PS) at 4800 rpm 1956–1960
507 Zenith 32 NDIX x 2 7.8:1 150 bhp (112 kW; 152 PS) at 5000 rpm 1956–1959
502 3.2 litre Super Zenith 32 NDIX x 2 7.3:1 140 bhp (104 kW; 142 PS) at 4800 rpm 1957–1958
3.2 Zenith 32 NDIX x 1 7.2:1 120 bhp (89 kW; 122 PS) at 4800 rpm 1958–1961
3.2 Super Zenith 32 NDIX x 2 7.3:1 140 bhp (104 kW; 142 PS) at 4800 rpm 1958–1961
3200 L Zenith 36 NDIX x 1 9.0:1 140 bhp (104 kW; 142 PS) at 5400 rpm 1961–1963
3200 S Zenith 36 NDIX x 2 9.0:1 160 PS (118 kW) at 5600 rpm 1961–1963
3200 CS Zenith 36 NDIX x 2 9.0:1 160 PS (118 kW) at 5600 rpm 1962–1965

Use by other manufacturers

Frazer-Nash Continental

Main article: Frazer-Nash

Frazer-Nash, which had been an importer of BMW cars into the United Kingdom, used the BMW V8 in a limited run of cars named Continental.[19]

Talbot-Lago America

Main article: Talbot-Lago

Due to financial troubles, Talbot-Lago ceased production of engines of their own design, and instead relied on BMW V8 engines.[20]

References

Citations
  1. ^ http://www.theautochannel.com/vehicles/new/reviews/wk9437.html BMW 840Ci
  2. ^ http://www.globalcar.com/datasheet/BMW/1952_BMW_501.htm Details on BMW 501
  3. ^ a b Noakes, Andrew, The Ultimate History of BMW, p. 46
  4. ^ a b Norbye, Jan P., BMW - Bavaria's Driving Machines, p. 90
  5. ^ a b c Noakes, p. 48
  6. ^ Norbye, p. 91
  7. ^ Noakes, p. 49
  8. ^ a b c d e Norbye, p. 93
  9. ^ a b Norbye, p. 92
  10. ^ a b Norbye, pp. 250-251
  11. ^ BMW History, with searches for "2600" and "2600 L"
  12. ^ a b BMW History, with searches for data on individual models
  13. ^ http://www.motorbase.com/profiles/vehicle/index.ehtml?i=432 Motorbase: BMW 502
  14. ^ Norbye, p. 113
  15. ^ Norbye, p. 115
  16. ^ BMW Konzernarchiv - BMW 502 Limousine - BMW 502 3,2 Litre Super (also - BMW 3,2 Super)
  17. ^ BMW History, with searches for "3200 L" and "3200 S"
  18. ^ Norbye, pp. 131-132
  19. ^ http://www.curbsideclassic.com/blog/snapshot-from-1960-quick-what-car-is-it/
  20. ^ http://www.ucapusa.com/lost_marques_talbot_lago.htm
Sources
  • Noakes, Andrew (2005). The Ultimate History of BMW. Bath, UK: Parragon Publishing. ISBN 1-4054-5316-8.
  • Norbye, Jan P. (1984). "Postwar Panache: Baroque Angels, Timeless Sports Cars". BMW - Bavaria's Driving Machines. Skokie, IL, USA: Publications International. ISBN 0-517-42464-9. LCCN 84-60309.
  • "BMW 502 – BMW 502 Limousine". BMW Classic (corporate history site) (in German). Retrieved 2013-11-24. {{cite web}}: Cite has empty unknown parameter: |trans_title= (help); External link in |website= (help)
  • "BMW History". BMW Classic. BMW AG. Retrieved 25 November 2013. {{cite web}}: External link in |website= (help)
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