Road America 500 Miles 1979 - Racing Sports Cars

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Event: Pabst 500, Road America Silver Anniversary		Date: 2.9.1979
Track: Road America, Elkhart Lake (United States), 6.437 kms	Organiser: unknown
Road America 500 Miles
Winston GT (round 13) FIA World Challenge for Endurance Drivers (round 9) IMSA GTO (round 13) IMSA GTU (round 13) International Motor Sport Association (round 13)

Weather:	warm, dry
Start time:	11:00
Grid:	unknown
Distance:	500 miles
Attendance:	unknown

Entered:	50
Practiced:	44
Qualified:	44
Started:	42
Finished:	27

Classes:	Pract	Start
IMSA GTX	10	10
IMSA GTO	17	17
IMSA GTU	17	15

Photo Gallery Entered Cars Technical Data Appearance Race Results Grid Qualifying Lap Times

Pre-race sessions:
2 non-qualifying practice session held for a total of 90 minutes on 31/8
1 qualifying sessions held for a total of 30 minutes on 1/9
30 minute pre-race warm-up held

Winners:
Overall:	2	BMW 320i Turbo	Hobbs / Bell
IMSA GTO:	79	Mazda RX-7	Bergstrom / Knoop
IMSA GTU:	44	Triumph TR8	Tullius / Fuerstenau
Fastest Laps:
Overall:	86	Porsche 935/77A	Peter Gregg (USA)	2:14.9620	171.7122 km/h	lap 9
IMSA GTO:	83	Datsun 280ZX	Don Devendorf (USA)	2:30.8610	153.6151 km/h	lap 23
IMSA GTU:	44	Triumph TR8	Bob Tullius (USA)	2:28.6550	155.8956 km/h	lap 20
Pole Positions:
Overall:	86	Porsche 935/77A	Peter Gregg (USA)	2:14.9790	171.6896 km/h
IMSA GTO:	83	Datsun 280ZX	Don Devendorf (USA)	2:29.8660	154.6354 km/h
IMSA GTU:	48	Chevrolet Corvette	Phil Currin (USA)	2:27.8090	156.7871 km/h
Notes of interest:
Top makes by numbers:	Porsche (21), Chevrolet (8), BMW (4), Mazda (4), Datsun (2)
Top engines by numbers:	Porsche (20), Chevrolet (8), BMW (4), Mazda (4), Datsun (2)
Top car types by numbers:	Porsche 935 (8), Chevrolet Corvette (5), Porsche 911 (5)
Driver nationalities:	USA (78), CDN (4), GB (3)
Team nationalities:	USA (32)
Engine positions:	front-engined (45%), rear-engined (40%), mid-engined (15%)
Oldest known drivers:	Diego Febles (50), Bob Tullius (49), Jim Cook (42)
Youngest known drivers:	Kees Nierop (21), Ted Field (26), Hurley Haywood (31)
Female drivers:	Margie Smith-Haas

Official Race Programme:

Cover	Entry List	Schedule	Track Map

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