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The ''1955 LeHi 300'' (known officially in NASCAR as ''1955-40'') was a NASCAR Grand National Series (now Sprint Cup Series) event that was held on October 9, 1955 at Memphis-Arkansas Speedway in LeHi, Arkansas. The race car drivers still had to commute to the races using the same stock cars that competed in a typical weekend's race through a policy of homologation (and under their own power). This policy was in effect until roughly 1975. By 1980, NASCAR had completely stopped tracking the year model of all the vehicles and most teams did not take stock cars to the track under their own power any more. ==Summary== The 200-lap race took three hours and thirty-four minutes to complete in front of 8500 live spectators.〔 Speedy Thompson defeated Marvin Panch by ¾ of a single lap.〔 Ford would win their first race as a manufacturer since 1950. Fonty Flock earned the pole position with a speed of while the winner of the race achieved a speed of .〔 Jim Reed was disqualified from the race due to a flagrant violation of the rules and was given the last-place finish on lap 8.〔 All of the 41 drivers on the racing grid were Caucasian American-born males.〔 This was the 40th racing event out of the 45 done in the 1955 NASCAR Grand National Series season.〔 The total amount of prize winnings that could have been earned from this racing event was $9,120 ($ when adjusted for inflation). Tiny Lund would make his career start during this event and would make $60 for his troubles ($ when adjusted for inflation).〔 Other drivers making their NASCAR Cup Series debut in this race included Johnny Allen, Bill Morton, Jim Murray, Norm Nelson, and Chuck Stevenson. A lot of drivers would make their grand exits from NASCAR after this race: this relatively long list included Floyd Curtis, Hooker Hood, Roscoe Rann and Leland Sewell.〔 One-time race car drivers Bob Coleman, Al Hager, and Gene Rose would make their only NASCAR appearances during this race.〔 Even during the 1950s, it was unusual to see four cars fail to finish the race due to problems with the vapor lock. It occurs when the liquid fuel changes state from liquid to gas while still in the fuel delivery system. This disrupts the operation of the fuel pump, causing loss of feed pressure to the carburetor, resulting in transient loss of power or complete stalling. Restarting the engine from this state may be difficult. The fuel can vaporize due to being heated by the engine, by the local climate or due to a lower boiling point at high altitude. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「1955 LeHi 300」の詳細全文を読む スポンサード リンク
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