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Event: Chisago Tribune presents the Nissan Grand Prix of Road AmericaDate: 19.8.1990
Track: Road America, Elkhart Lake (United States), 6.437 kmsOrganiser: unknown

Road America 1 Hour IMSA GTO
IMSA GTO (round 10)
IMSA GTU (round 10)
International Motor Sport Association (round 15)
Weather:wet
Start time:unknown
Grid:unknown
Distance:60 minutes
Attendance:unknown
Entered:37
Practiced:36
Qualified:36
Started:35
Finished:30
Classes:PractStart
IMSA GTO1110
IMSA GTU1414
IMSA AAC1111
Photo GalleryEntered CarsTechnical DataAppearanceRace ResultsGrid
Race notes:
Originally scheduled for 300 kms but shortened to 60 minutes due to weather.
Winners:
Overall:75Nissan 300ZXSteve Millen
IMSA GTU:37Mazda MX-6Lance Stewart
IMSA AAC:10Chevrolet BerettaClay Young
Leaders:
lap ?:75Nissan 30ZX
lap ??:40Ferrari F40-LM
lap ???:9Mercury Cougar XR-7
lap ????:76Nissan 30ZX
lap ?????:40Ferrari F40-LM
Fastest Laps:
Overall:75Nissan 300ZXSteve Millen (NZ)2:15.1930171.4177 km/hlap 24
IMSA GTU:96Nissan 240SXDavid Loring (USA)2:31.3370153.1307 km/hlap 18
IMSA AAC:11Chevrolet BerettaMark Porcaro (USA)2:37.7170146.9363 km/hlap 20
Pole Positions:
Overall:6Mercury Cougar XR-7Dorsey Schroeder (USA)2:10.2180177.9661 km/h
IMSA GTU:96Nissan 240SXDavid Loring (USA)2:22.7180162.3796 km/h
IMSA AAC:11Chevrolet BerettaMark Porcaro (USA)
Notes of interest:
Top makes by numbers:Mazda (10), Chevrolet (9), Nissan (5), Mercury (3), Ferrari (2), Dodge (2), Buick (2)
Top engines by numbers:Mazda (10), Chevrolet (9), Nissan (5), Ford (3), Ferrari (2), Dodge (2), Buick (2)
Top car types by numbers:Mazda RX-7 (6), Chevrolet Camaro (6), Mazda MX-6 (4)
Driver nationalities:USA (30), F (2)
Engine positions:front-engined (90%), mid-engined (6%), rear-engined (4%)
Oldest known drivers:Dick Greer (58), Jean-Pierre Jabouille (48), Elliot Forbes-Robinson (47)
Youngest known drivers:Jeremy Dale (28), Michel Ferté (32), Dan Osterholt (36)

Official Race Programme:

CoverEntry ListScheduleTrack Map
Programme Cover - Road America 1 Hour IMSA GTO 1990Entry List - Road America 1 Hour IMSA GTO 1990Schedule of events is not available.Track map is not available.