Pre-cross flow from Weale<\/strong><\/p>\n\u201cwhen Ford introduced their 105 E \u201cKent\u201d range of engines in 1959, replacing both the 1172 cc side valve and the larger Consul ohv the design was immediately regonised as something of significance- a really modern, compact, short stroke engine with obvious development potential, built as simply as possible with the minimum of parts.<\/p>\n
The original use of the 105E engine in a Seven was a private conversion by Caterham \u2026………….<\/p>\n
In common with most mass \u2013produced machinery, the Ford ohv engine has a complex history \u2026…………<\/p>\n
In Cosworth modified form, as fitted to the Seven, the 1340cc 109E engine developed approximately 85 bhp…………….the 1500 cc version was introduced in 1962 \u2026………..this unit was offered in the Seven with a single ,side draught Weber DCOE carburetter in place of the Ford downdraught type .It also formed the basis of both the optional 95bhp , 1500 Cosworth engine , and the 1558 cc Lotus Cortina unit<\/p>\n
These early Kent engines employed conventional chambered eight port cylinder heads, both inlet and exhaust manifolds being on the near side of the unit [ see editors sketches] <\/em>and flat-topped pistons \u2026……\u201d<\/p>\n<\/p>\n
Figure 3.Period advertisement for pre cross flow engine\/Ford cars<\/p>\n
<\/p>\n
Figure 4.Editors sketch pre cross flow and gearbox.Remote change mechanism included<\/p>\n
Statistics from Kaberry Ford 105E<\/em><\/p>\n\n\n\n996 .6cc Engine<\/td>\n | <\/td>\n | 1200 &Super Anglia<\/td>\n | <\/td>\n<\/tr>\n |
\nBore<\/td>\n | 80.96<\/td>\n | ditto<\/td>\n | <\/td>\n<\/tr>\n |
\nStroke<\/td>\n | 48.41<\/td>\n | 58.17<\/td>\n | <\/td>\n<\/tr>\n |
\nCapacity<\/td>\n | 996.6 cc<\/td>\n | 1,198 cc<\/td>\n | <\/td>\n<\/tr>\n |
\nCompression ratio<\/td>\n | 7.5 & 8.9:1<\/td>\n | <\/td>\n | <\/td>\n<\/tr>\n |
\nBrake horse power<\/td>\n | <\/td>\n | <\/td>\n | <\/td>\n<\/tr>\n |
\nHC engine<\/td>\n | 39@5,000rpm<\/td>\n | 9.1 :1 [48.5@4,800]<\/td>\n | 50@4,900<\/td>\n<\/tr>\n |
\nLC engine<\/td>\n | 37@5,000rpm<\/td>\n | 7.8:1 [46@4,800]<\/td>\n | 48@4,900<\/td>\n<\/tr>\n |
\nCarburetter<\/td>\n | Solex\/Ford d-d<\/td>\n | Solex<\/td>\n | <\/td>\n<\/tr>\n |
\nGearbox<\/td>\n | <\/td>\n | <\/td>\n | <\/td>\n<\/tr>\n |
\n1st<\/td>\n | 4.118 to 1<\/td>\n | 3.543 to 1<\/td>\n | <\/td>\n<\/tr>\n |
\n2nd<\/td>\n | 2.396 to 1<\/td>\n | 2.396 to 1<\/td>\n | <\/td>\n<\/tr>\n |
\n3rd<\/td>\n | 1.412 to 1<\/td>\n | 1.412 to 1<\/td>\n | <\/td>\n<\/tr>\n |
\n4th<\/td>\n | 1.000 to 1<\/td>\n | 1.000 to 1<\/td>\n | <\/td>\n<\/tr>\n |
\nRear axle ratio<\/td>\n | 4.125 or 4.444 to 1<\/td>\n | 4.125 to 1<\/td>\n | <\/td>\n<\/tr>\n |
\nKerb Weight<\/td>\n | <\/td>\n | 1,680lb<\/td>\n | <\/td>\n<\/tr>\n |
\nSaloon<\/td>\n | 1,634lb<\/td>\n | <\/td>\n | <\/td>\n<\/tr>\n |
\nEstate car<\/td>\n | 1,820lb<\/td>\n | <\/td>\n | <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Pre crossflow performance comparisons<\/strong><\/p>\nStatistics from Haynes Guide to Component Cars.<\/em><\/p>\n\n\n\nmph<\/td>\n | 105E engine<\/td>\n | 116E<\/td>\n | Ford 122E modified 95 bhp<\/td>\n<\/tr>\n | \n0-30<\/td>\n | 4.4<\/td>\n | 2.8<\/td>\n | 2.6<\/td>\n<\/tr>\n | \n0-40<\/td>\n | 7.4<\/td>\n | 5<\/td>\n | 4.7<\/td>\n<\/tr>\n | \n0-50<\/td>\n | 10.2<\/td>\n | 7.2<\/td>\n | 6.5<\/td>\n<\/tr>\n | \n0-60<\/td>\n | 13.5<\/td>\n | 9.7<\/td>\n | 9.2<\/td>\n<\/tr>\n | \n0-70<\/td>\n | 18.2<\/td>\n | 13<\/td>\n | 11.7<\/td>\n<\/tr>\n | \n0-80<\/td>\n | <\/td>\n | 18.5<\/td>\n | 14.9<\/td>\n<\/tr>\n | \n0-90<\/td>\n | <\/td>\n | <\/td>\n | 20.1<\/td>\n<\/tr>\n | \n1st<\/td>\n | 24<\/td>\n | 26<\/td>\n | 34<\/td>\n<\/tr>\n | \n2nd<\/td>\n | 34<\/td>\n | 40<\/td>\n | 50<\/td>\n<\/tr>\n | \n3rd<\/td>\n | 64<\/td>\n | 70<\/td>\n | 86<\/td>\n<\/tr>\n | \n4th<\/td>\n | 92<\/td>\n | 108<\/td>\n | 120<\/td>\n<\/tr>\n | \nfuel cons’<\/td>\n | 35mpg<\/td>\n | 30mpg<\/td>\n | 27mpg<\/td>\n<\/tr>\n | \nhard<\/td>\n | 28mpg<\/td>\n | 25mpg<\/td>\n | 23mpg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Learning Opportunities<\/strong><\/p>\nOur learning \/educational opportunities are intended to be challenging thought provoking and requiring additional research and\/or analysis.<\/p>\n These opportunities are particularly designed for a museum\/education centre location where visitors would be able to enjoy access to all the structured resources available in conjunction with any concurrent exhibition.<\/p>\n In this instance we suggest the following might be appropriate:-<\/p>\n \n- Why did the ford side vale remain so long in production?<\/li>\n
- What were ford\u2019s main commercial considerations when designing a new engine series? [i.e. pre-cross flow]<\/li>\n
- How did ford diversify range to maximise production, sales and economy of scale?<\/li>\n
- What modifications did Cosworth make to base engine [ i.e. pre-cross flow]?<\/li>\n
- Why was unit particularly suitable for tuning? And use in Lotus Seven?<\/li>\n
- Examine performance figures for various Seven engines, how does pre-cross flow compare?<\/li>\n<\/ul>\n
<\/p>\n Figure 5. Editors sketch either side of engine<\/p>\n Cosworth<\/strong><\/p>\nCosworth modified engines are very significant aspect of Lotus commercial and competition success. For this reason, they are subject of a dedicated article.<\/p>\n The editors sketch is reminder of their importance particularly identified with the pre cross flow Lotus Seven\u2019s………..to the extent they are considered the holy grail particularly the 109E version.<\/p>\n Exhibitions, Education and Economics<\/strong><\/p>\nIn the museum context the editors believe that commercial considerations are both necessary and complementary with its educational objectives.<\/p>\n For these reasons our suggested outline Business Plan includes provision for promoting products and services which share Chapman\u2019s ideals of mechanical efficiency and sustainability. In addition we propose merchandising that explain and interprets the social and cultural context of Chapman\u2019s designs in period. It\u2019s suggested there will be catalogue for on line purchasing.<\/p>\n In this instance we suggest the following might be appropriate:-<\/p>\n \n- Lotus races down the Old Kent Road<\/li>\n
- Kent over square: Congruous with Lotus<\/li>\n
- Kent over square: squarely bang, exactly right for Lotus<\/li>\n
- Kent over square: precisely and unswervingly correct for Lotus<\/li>\n
- Kent over square: More than<\/li>\n
- Kent over square: Overhead, over square<\/li>\n
- Lotus and Kent: Over and above<\/li>\n
- Lotus and Kent: no over reaction<\/li>\n<\/ul>\n
<\/p>\n Figure 6. Editors sketch of Cosworth modified Ford engine.Installation Lotus Seven<\/p>\n Conclusion<\/strong><\/p>\nThe Ford pre-cross flow \u201cKent\u201d engine powered the Lotus<\/p>\n It therefore powered racing and road cars.<\/p>\n It was a superb piece of industrial design; functional and utilitarian .Although not without faults. Some of these might be due to subcontracting or Ford\u2019s economy measures.<\/p>\n It was successful in racing gaining publicity and inspired modification, tuning and a generation chassis designers.<\/p>\n The engine was attractive to owners and generated sales. Exports were possible because of the international spares’ availability.<\/p>\n These mass-produced engines were generally robust, inexpensive, widely available and spawned aftermarket components industry. Furthermore, they invited experimentation, notably Cosworth and Holbay helped facilitate competition and design diversification. Thus, assisting and elevating British motor racing: design, engineering, manufacture and of course drivers.<\/p>\n The engine has continuing legacy and relevance and being such a significant piece of industrial design is fully worthy of analysis and appreciation.<\/p>\n Added value is an extremely important of Industrial Design, Chapman exploited to maximum effect and its principles are significant for a young entrepreneur with low capital wishing to enter the market.<\/p>\n Reference:<\/strong><\/p>\nThe 100 most beautiful cars<\/strong> in pictures | Autocar<\/strong><\/a><\/p>\nhttps:\/\/www.autocar.co.uk\/car-news\/design\/autocars-100-most-beautiful-cars-2<\/p>\n Lotus Seven.Weale.Osprey.1991.<\/p>\n ISBN:185532153X<\/p>\n Ford Anglia 105E.Kaberry.Pearson.1967.<\/p>\n Guide to Component Cars .Haynes. Haynes.c1966<\/p>\n Please see dedicated bibliographies listed with Lotus engine Series and Seven<\/p>\n Please note the editors of the A&R attempt to give the broadest spectrum of references but not all are available for consultation in an article. However by noting their existence it may assist students in their research.<\/em><\/p>\n*Items in italics non A&R library books.<\/em><\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" Lotus engine Series: The Ford Pre Cross-flow Lotus races down the Old Kent Road Introduction The engine series are neither technical treatise or Haynes Manuals. This information is readily available in published form or on the net. Rather our study concentrates on how and why Chapman and his colleagues’ sourced engines and their contribution to […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":280,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_mi_skip_tracking":false,"footnotes":""},"_links":{"self":[{"href":"http:\/\/www.colinchapmanmuseum.co.uk\/index.php?rest_route=\/wp\/v2\/pages\/2905"}],"collection":[{"href":"http:\/\/www.colinchapmanmuseum.co.uk\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/www.colinchapmanmuseum.co.uk\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/www.colinchapmanmuseum.co.uk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.colinchapmanmuseum.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2905"}],"version-history":[{"count":1,"href":"http:\/\/www.colinchapmanmuseum.co.uk\/index.php?rest_route=\/wp\/v2\/pages\/2905\/revisions"}],"predecessor-version":[{"id":2915,"href":"http:\/\/www.colinchapmanmuseum.co.uk\/index.php?rest_route=\/wp\/v2\/pages\/2905\/revisions\/2915"}],"up":[{"embeddable":true,"href":"http:\/\/www.colinchapmanmuseum.co.uk\/index.php?rest_route=\/wp\/v2\/pages\/280"}],"wp:attachment":[{"href":"http:\/\/www.colinchapmanmuseum.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} | |