Philip Edward Irving MBE, C.Eng., F.I.Mech.E., M.S.A.E., (1903-1992) was an Australian engineer and author, most famous for the Repco-Brabham Formula One and Vincent motorcycle engines. He also designed Velocette motorcycles and drew the engine of the 1960 EMC 125cc racer.
Irving's first engineering job started in 1922 working for the Australian engineer Anthony Michell at the firm of Crankless Engines Ltd in Fitzroy, Victoria. At the firm worked under both Michell and engineer T.L. Sherman. Irving said: "It was the greatest stroke of luck imaginable that I started work under two such eminent men...".
Between 1926 and 1929 Irving jointly owned and operated a motorcycle workshop in the regional town of Ballarat, Australia with Ken Granter. As the economic climate harshened in 1929 business at the shop slumped and it was forced to close. A historic plaque commemorates the former location of the workshop at 28 Doveton Street, Ballarat in Victoria.
In 1931, he left Australia and travelled to Britain as pillion passenger to John Gill on his Round-the-World motorcycle and sidecar journey. This epic trip was sponsored by the HRD-Vincent Company and on arrival in Britain, the pair travelled to Stevenage where Phil Vincent and Phil Irving commenced a life-long friendship. Irving had two stints working for Vincent; in the early thirties and from 1943 when he worked at Stevenage as Vincent's Chief Engineer.
From 1937 to 1953 he worked for Velocette at their Hall Green Factory in Birmingham, where he designed and patented a number of designs including the famed rear suspension adjustment used on the post war spring-frame Velocettes. It was also used on the LE Velocette, a motorcycle he sketched during his war years at the company. Irving also designed the prototype Model 'O' Velocette, a shaft-drive twin cylinder machine of 600cc capacity and loosely based on the supercharged 500cc racing machine known as 'The Roarer'.
During the 1930s and 40s, Phil Irving wrote a technical column in Motor Cycling magazine under the pseudonym 'Slide Rule' some of which were later reprinted in book form as Motorcycle Technicalities. Amongst the other books he authored are Tuning For Speed, Motorcycle Engineering and his autobiography, Phil Irving - An Autobiography.
At the 1960 Isle of Man TT Races, Dr Josef Ehrlich, the owner of Ehrlich Motor Cycles (EMC Motorcycles) commissioned Irving to 'reverse-engineer' an MZ 125cc racing engine supplied by Ehrlich and to produce the working drawings of a water-cooled variant which became the 1961 EMC 125cc water-cooled single cylinder racing engine.
At the end of 1963, Irving was approached by Jack Brabham to design a simple, lightweight and powerful 3 litre V8 engine for the upcoming change in Formula One engine specifications due for 1966. This engine was built around the 3.5 litre Oldsmobile V8 cylinder block design and became known as the RB620. It incorporated some 'off-the-'shelf' technology such as Vincent valve inspection caps and BSA 500cc Gold Star cam profiles. Jack Brabham won the 1966 Formula 1 Driver's Championship and the Manufacturers' Championship using this engine.
In 1949 Irving became Vice President of the Vincent HRD Owners Club and continued in that role until the death of Phil Vincent in 1979 when he rose to President (an honorary title). Irving held the presidency until his death on 14 January 1992.
Irving was awarded an MBE (Member of the British Empire) in the Queen's 1976 New Year Honours List for his "services to automotive engineering". His award was announced in the Supplement to The London Gazette dated 31 December 1976.
In later life, Irving permanently lived in Australia, basing himself at Ballarat where he had a small workshop. He never stopped his practical involvement with engines and especially with Vincent motorcycles. Just a few weeks before his death and aged 89 years, he was still working on Harley Davidson motorcycles at 'Midwest Harley' in Ballarat, Australia. Its owner Ken James said: "You can't stop Phil; he just needs to be around engines and make them sing".
Irving's life was devoted to his passion for Motorcycles and Motor Racing. An Australian company KH Equipment Pty. Ltd, continues to build and improve on the Vincent line under the name 'Irving Vincent' in Hallam, Victoria, Australia.
To honour Irving's 'great achievements', the Confederation of Australian Motor Sport named its highest engineering award the Phil Irving Award, one of the recipients is Ron Tauranac.
There is also a Phil Irving Trophy motorcycle race held at Phillip Island during its annual Island Classic race meeting.