I don't know when exactly Carl "Pop" Green started doing business as the Green Engineering Co. in Dayton/OH, but by 1915 he was advertizing "Aluminum Alloy ("Aluminite") Pistons [that] will make a four run like a six" in an Indianapolis newspaper, adding that they "have won all prominent racing events". Over the next few years, similar ads appeared in Ohio and Western Pennsylvania papers, and by 1921 a pair of Green-built racers ran on the IMCA circuit, the #29 CSG Special and the #30 Green-Dayton Special. By 1925, Green Engineering had become a common name in certain areas, and one Michigan paper even announced a five-car team entry for a local event, however nothing specific is known at the time. The same year, Green Engineering also filed a two-car entry for the Indy 500, one Super Ford Special being of the "flivver type" but, significantly, supercharged - perhaps the first supercharged Model T racing car ever? The other one, to be driven and sponsored by Western New Yorker Steven Smith, was possibly even more interesting: a DOHC straight 8, a challenger for the state-of-the-art Millers and Duesenbergs. Unfortunately, both cars were ready far too late, and didn't get up to qualifying speeds.
Unusually, for America, the Green supercharger was of the Roots "blower" type, and sat in front of the radiator on the front axle, complete with the carburettor - not ideal for dirt track racing, one imagines. Green advertized it for sale, but it's unclear whether it was a success - as mentioned, Niles Gary of Maryland drove one in 1926, but that may well have been the 1925 Indy prototype. From 1927 to '30, Norval Delelys from upstate New York was another user, and yet again it may have been the same car. Meanwhile, Green showed up at Indy in '26 with a 91 CID version, still Ford-based, which is quite a conversion starting with almost twice the capacity - to my knowledge, only Frontenac and Green even tried this, and both appear to have built just one such engine. As we have seen, the Green mini flivver was hardly a success, and this car was eventually advertized for sale in a Detroit newspaper on July 6, 1927, from a Ferndale address (a Detroit suburb). That year, the straight 8 reappeared, now also modified for the new formula, and also DNQed. Green also engaged in motor boat races, and a marine V8 was adopted for the second entry, finally making the field the following year at a slow 96 mph and with that history, as the first of many V8s to run the famous event. It failed again in '29, as did the straight 8, and after that Green turned to the highly profitable business of converting Model A and B Fords into racing engines in New Jersey, with which he enjoyed some fine success in the thirties. He also partook in early Midget racing, but after a few wins in 1935 he was swept away by the "Mighty Midget", made by Offenhauser.
Edited by Michael Ferner, 17 August 2016 - 21:28.