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Event: Silver Anniversary Edition 24 Hr. Pepsi ChallengeDate: 6.2.1983
Track: Daytona International Speedway (United States), 6.180 kmsOrganiser: unknown

Daytona 24 Hours

Weather:intermittent rain
Start time:5/2 15:30
Grid:2-2-2, PP left
Distance:24 hours
Attendance:unknown
Entered:92
Practiced:87
Qualified:81
Started:79
Finished:31
Classes:PractStart
IMSA GTP2119
IMSA GTO4340
IMSA GTU2320
Race notes:
On Sunday morning: Race red flagged for 53 min, 46.6 sec. because of rain, time included in total
8 full-course cautions for 130 minutes
Pre-race sessions:
2 qualifying sessions for a total of 60 minutes on 3-4/2
7 non-qualifying practice sessions held for a total of 540 minutes on 2-4/2
20 minute pre-race warm-up held
Winners:
Overall:6Porsche 935 LWollek / Ballot-Léna / Henn / Foyt
IMSA GTO:7Mazda RX-7Halsmer / Reed / Knoop
IMSA GTU:92Mazda RX-7Mueller / McDonough / Visger
Fastest Laps:
Overall:6Porsche 935 LBob Wollek (F)1:49.220203.695 km/hlap 450
IMSA GTO:28Avanti IIJoe Ruttman (USA)1:54.410120.820 km/hlap 5
IMSA GTU:38Mazda RX-7Roger Mandeville (USA)2:04.990177.995 km/hlap 15
Pole Positions:
Overall:6Porsche 935 LBob Wollek (F)1:42.155217.783 km/h
IMSA GTO:45Chevrolet CamaroFelton / Williams / Frink1:50.593201.166 km/h
IMSA GTU:92Mazda RX-7Lee Mueller (USA)2:01.367183.307 km/h
Notes of interest:
Top makes by numbers:Porsche (28), Chevrolet (16), Mazda (13), Pontiac (4), Toyota (3)
Top engines by numbers:Porsche (29), Chevrolet (19), Mazda (13), Pontiac (4), Toyota (3)
Top car types by numbers:Mazda RX-7 (12), Chevrolet Camaro (11), Porsche 935 (8), Porsche 911 Carrera RSR (8)
Driver nationalities:USA (205), CDN (7), GB (4), ES (3), F (3), CO (2), CR (2), B (2), J (2)
Engine positions:front-engined (53%), rear-engined (30%), mid-engined (17%)
Oldest known drivers:Preston Henn (52), Billy Hagan (51), Ronnie Bucknum (47)
Youngest known drivers:Scott Schmidt (21), John Paul, Jr. (23), Pascal Witmeur (27)
Woman drivers:Deborah Gregg, Bonnie Henn, Kathy Rude

Official Race Programme:

CoverEntry ListScheduleTrack Map
Programme Cover - Daytona 24 Hours 1983Entry list is not available.Schedule of events is not available.Track map is not available.
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21 - Lola T294 ROC #HU69? - Racing Organisation Course
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