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Event: Date: 15.6.1975
Track: Portland International Raceway (United States), 3.082 kmsOrganiser: unknown

Trans-Am Portland
Weather:sunny, low 80s
Start time:unknown
Grid:unknown
Distance:unknown
Attendance:12000
Entered:unknown
Practiced:unknown
Started:unknown
Finished:unknown
No Photos YetEntered CarsTechnical DataAppearanceRace ResultsGrid
Winners:
Overall:Chevrolet Corvette 427John Greenwood
Leaders:
laps 1-17:Mathey
laps 18-35:Greenwood
laps 36-37:Chamberlain
laps 38-50:Greenwood
Fastest Laps:
Overall:Chevrolet Corvette 427John Greenwood (USA)1:14.8700148.1868 km/h
Pole Positions:
Overall:Chevrolet Corvette 350Mike Meek (USA)1:15.7500146.4632 km/h
Notes of interest:
Top makes by numbers:Chevrolet (20), Porsche (3), Datsun (3)
Top engines by numbers:Chevrolet (20), Porsche (3), Datsun (3), Ford (2)
Top car types by numbers:Chevrolet Corvette (17), Chevrolet Camaro (3), Porsche 911 (2), Datsun 280Z (2)
Driver nationalities:USA (27)
Engine positions:front-engined (89%), rear-engined (11%)
Average engine size:6427 cc
Oldest known drivers:John Greenwood (30)
Youngest known drivers:John Greenwood (30)

Official Race Programme:

CoverEntry ListScheduleTrack Map
Programme cover is not available.Entry list is not available.Schedule of events is not available.Track map is not available.