Portland IMSA GTU 1981 - Racing Sports Cars

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Event: G.I. Joe's Datsun Grand Prix Portland		Date: 2.8.1981
Track: Portland International Raceway (United States), unknown length	Organiser: unknown
Portland IMSA GTU
IMSA GTU (round 11) International Motor Sport Association (round 11)

Weather:	unknown
Start time:	13:00
Grid:	unknown
Distance:	45 minutes
Attendance:	unknown

Entered:	27
Practiced:	unknown
Started:	19
Finished:	16

Classes:	Start
IMSA GTU	14
Special Group 2	5

Photo Gallery Entered Cars Technical Data Appearance Race Results Grid

Pre-race sessions:
2 non-qualifying practice sessions held on 31/7
2 qualifying sessions held on 1/8
pre-race warm-up held

Winners:
Overall:	92	Mazda RX-7	Lee Mueller
Special Group 2:	80	Datsun 200SX	Mike Rickman
Fastest Laps:
Overall:	92	Mazda RX-7	Lee Mueller (USA)	1:13.950	150.031 km/h	lap 10
Special Group 2:	80	Datsun 200SX	Mike Rickman (USA)	1:20.010	138.639 km/h	lap 6
Pole Positions:
Overall:	92	Mazda RX-7	Lee Mueller (USA)	1:13.866	150.202 km/h
Special Group 2:	80	Datsun 200SX	Mike Rickman (USA)	1:19.404	139.727 km/h
Notes of interest:
Top makes by numbers:	Datsun (8), Mazda (4), Porsche (4)
Top engines by numbers:	Datsun (8), Mazda (4), Porsche (3)
Top car types by numbers:	Mazda RX-7 (4), Porsche 914 (3), Datsun 280ZX (2)
Driver nationalities:	USA (19)
Team nationalities:	USA (17)
Engine positions:	front-engined (75%), mid-engined (18%), rear-engined (7%)
Oldest known drivers:	George Follmer (47), Jim Cook (44), Jeff Kline (37)
Youngest known drivers:	Walt Bohren (33), Jeff Kline (37), Jim Cook (44)

Official Race Programme:

Cover	Entry List	Schedule	Track Map

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