PORSCHE RACING HISTORY

1948 - 2000


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Jack Refenning (USA)



1976   1977   1978   1979   1980   1981   1982   1983   1984   1985   1986   1987   1988   1989   1990   

1977 : Sebring 12 Hours - 2nd in class

6 February 1977 - Daytona 24 Hours - World Championship for Makes

No. Car # Class Drivers Entrant Pos Class Grid Notes
27 Porsche 911 S 304 823 GTU Ray Mummery (USA)/Jack Refenning (USA)/Ralph Noseda (USA) SVD Automotive 12th 5th 51st 581 laps

19 March 1977 - Sebring 12 Hours - IMSA - International Motor Sport Association

No. Car # Class Drivers Entrant Pos Class Grid Notes
27 Porsche 911 S 304 823 GTU Ray Mummery (USA)/Jack Refenning (USA)/Joseph Hamilton (USA) Miami Auto Racing 9th 2nd 70th 203 laps



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