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Mid-Ohio 500 Kilometres 1981
Event:
The Lumbermens 500, third annual North American Sports Car Championship Mid-Ohio
Date:
30.8.1981
Track:
Mid-Ohio Sports Car Course (United States)
, unknown length
Organiser: unknown
Mid-Ohio 500 Kilometres
Non championship race
Weather:
unknown
Start time:
13:00
Grid:
unknown
Distance:
500 kilometres
Attendance:
unknown
Entered:
67
Practiced:
unknown
Started:
41
Finished:
28
Classes:
Pract
Start
Group 8
2
2
Group 6
6
6
Group 5
9
9
Group 4
24
24
Photo Gallery
Entered Cars
Technical Data
Appearance
Race Results
Grid
Pre-race sessions:
2 non-qualifying practice sessions held for a total of 90 minutes on 29/8
2 qualifying sessions held for a total of 60 minutes on 29/8
25-minute pre-race warm-up held
Winners:
Overall:
3
Porsche 935 M16
Stommelen / Bell
Group 8:
81
Frissbee
Klausler
Group 6:
68
Cicale-March
Guider / Roos
Group 4:
111
BMW M1
Aase / Cook
Fastest Laps:
Overall:
25
Ralt RT2 Hart
Jim Trueman (USA)
1:27.2600
159.3476 km/h
lap 50
Group 8:
81
Frissbee
Tom Klausler (USA)
1:27.9000
158.1889 km/h
lap 10
Group 5:
3
Porsche 935 M16
Rolf Stommelen (D)
1:29.3500
155.6203 km/h
lap 41
Group 4:
111
BMW M1
Dennis Aase (USA)
1:34.1500
147.6863 km/h
lap 49
Pole Positions:
Overall:
81
Frissbee
John Morton (USA)
1:24.4770
164.5973 km/h
Group 6:
25
Ralt RT2 Hart
Bobby Rahal (USA)
1:25.4290
162.7642 km/h
Group 5:
78
Lola T600 Chevrolet
John Paul, Jr. (USA)
1:26.4750
160.7944 km/h
Group 4:
111
BMW M1
Dennis Aase (USA)
1:32.6170
150.1309 km/h
Notes of interest:
Top makes by numbers:
Porsche (16), Chevrolet (11), Chevron (3), Lola (3), BMW (2)
Top engines by numbers:
Porsche (16), Chevrolet (15), BMW (3), Hart (2)
Top car types by numbers:
Chevrolet Corvette (9), Porsche 911 Carrera (6), Porsche 935 (4)
Driver nationalities:
USA (72), CDN (5), GB (2)
Team nationalities:
USA (31), CDN (2)
Most used colours:
white (28%), blue (26%), red (23%), yellow (7%), black (6%)
Engine positions:
front-engined (37%), rear-engined (32%), mid-engined (31%)
Oldest known drivers:
Billy Hagan (49), Jim Cook (44), John Paul (42)
Youngest known drivers:
John Paul, Jr. (21), Bobby Rahal (28), Doc Bundy (32)
Official Race Programme:
Cover
Entry List
Schedule
Track Map
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