Heats
1975 Sebring 
1974 Road Atlanta  Go  
1975 Laguna Seca 
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100 Miles of Road Atlanta

Road Atlanta, Gainesville, Georgia, USA

Date: 20/4/1975
Track length: 4.055 m
Attendance: 25.000
Entries accepted: unknown
Starters: 40/31
Finishers:

Pole position: Shafer in 1.27,906 = 166,08 kmh
Fastest lap: Kwech in 1.26,971 = 167,87 kmh

Distance: 2 heats of 100 miles
Average speed: 162,998 kmh
Weather:
Ruleset: IMSA GT
Car info: 1975 Cars

 

Not unusual that Peter Gregg won this race, one of normal length after the season openers. In heat two however he ran into tyre troubles, dropping him down to fourth, climbing from 19th after his pit stop.
Holbert had been second in heat one and he won the second leg, ensuring overall honours.
Stuck wrote his BMW off in practice, team-mate Posey had a broken rear axle in heat one, which could not be repaired in time for the second heat.


Heat 1
Pos Pos in class # Team / Entrant
Car- Engine
Drivers, Nationality Engine
vol. (cc)
Engine
Type
Group Distance,
time
Qualifying position Qualifying time Fastest lap Reason out,
remarks
1 1 59 Brumos Porsche
Porsche Carrera RSR
Peter Gregg, USA
2994 B6 GTO 40 laps, 59.42,88 3      
2 2 14  
Porsche Carrera RSR
Al Holbert, USA
2994 B6 GTO 40 laps, 59.42,88 2      
3 3    
Porsche Carrera RSR
Hurley Haywood, USA
2994 B6 GTO 40 7      
4 4   John Greenwood Racing
Chevrolet Corvette
John Greenwood, USA
  V8 GTO 40 4      
5 5    
Porsche Carrera RSR
Michael Keyser, USA
2994 B6 GTO 40 9      
6 6    
Porsche Carrera RSR
George Dyer, USA
2994 B6 GTO 39 10      
7 7    
Porsche Carrera RSR
Bob Hagestad, USA
2994 B6 GTO 39 13      
8 8 66  
Chevrolet Monza
Tom Nehl, USA
  V8 GTO 38 14      
9 9    
Porsche Carrera RSR
Juan Carlos Bolanos, MEX
2994 B6 GTO 38 15      
10 1 33 Bob Sharp Racing
Datsun 240Z
Bob Sharp, USA
2400? L6 GTU 38 16      
DSQ      
Porsche 911 S
David White, USA
2400? B6 GTU 38? 19      
11 10    
Porsche Carrera RS
Norm Ridgely, CDN
2994 B6 GTO 37 24      
12 11    
Chevrolet Camaro
Herb Jones Jr, USA
  V8 GTO 36 26      
13 12    
Chevrolet Corvette
Dale Kreider, USA
  V8 GTO 36 34      
14 13    
De Tomaso Pantera
Hugh Kleinpeter, USA
5763 V8 GTO 36 27      
15 2    
Porsche 911 S
Dave Causey, USA
2400? B6 GTU 36 31      
16 3    
Porsche 911 S
Tony Garcia, USA
2400? B6 GTU 34 41      
17 4    
Porsche 911 S
Rusty Bond, USA
2400? B6 GTU 34 39      
18 14    
Chevrolet Corvette
Phil Currin, USA
  V8 GTO 34 18      
19 15    
Ford Mustang
Wendell Scott, USA
  V8 GTO 33 38      
20 16    
Chevrolet Corvette
Zack Spratlin, USA
  V8 GTO 33 23      
21 5    
VW-Porsche 914/6
Ron Coupland, USA
1991 B6 GTU 33 40      
22 17    
Chevrolet Corvette
Ford Smith, USA
  V8 GTO 33 28      
23 6    
Datsun 240Z
Bruce Mabrito, USA
2400? L6 GTU 32 43      
24 18    
Chevrolet Corvette
Barry Ruble
  V8 GTO 31 42      
25 19    
Chevrolet Corvette
Richard Ortman, USA
  V8 GTO 29 30      
DNF 7    
Datsun 240Z
Spencer Buzbee, USA
2400? L6 GTU 28 37      
27 20    
Porsche Carrera RSR
Charlie Kemp, USA
2994 B6 GTO 28 20      
28 21    
Chevrolet Camaro
Byron Cook, USA
  V8 GTO 25 33      
DNF 22   BMW of North America, Inc
BMW 3.0 CSL
Sam Posey, USA
3498 L6 GTO 21 6     Rear axle
DNF 23    
Chevrolet Corvette
Babe Headley, USA
  V8 GTO 20 17      
DNF 8    
Mazda Savanna RX-3
Raymond Walle, USA
2 x 491 R2 GTU 15 36      
DNF 24    
Chevrolet Corvette
Jerry Lancaster, USA
  V8 GTO 14 29      
DNF 25 2  
Chevrolet Monza
Horst Kwech, USA
  V8 GTO 13 5     Accident
DNF 26    
Chevrolet Camaro
Guy Thomas, USA
  V8 GTO 11 35      
DNF 27    
Chevrolet Camaro
Tim Chitwood, USA
  V8 GTO 7 21      
DNF 28    
Ford Mustang
Richard Mroz, USA
  V8 GTO 7 32      
DNF 29    
Porsche Carrera RSR
John O'Steen, USA
2994 B6 GTO 6 8      
DNF 30    
Chevrolet Camaro
Carl Shafer, USA
  V8 GTO 5 1 1.27,906    
DNF 31    
Chevrolet Camaro
Bob Christiansen, USA
  V8 GTO 5 25      
DNS   111 North American Racing Team
Ferrari 365 GT4 Berlinetta Boxer
Milt Minter, USA
4390 V12 GTO          
DNS     BMW of North America, Inc
BMW 3.0 CSL
Hans-Joachim Stuck, D
3498 L6 GTO         Accident

Heat 2
Pos Pos in class # Team / Entrant
Car- Engine
Drivers, Nationality Engine
vol. (cc)
Engine
Type
Group Distance,
time
Qualifying position Qualifying time Fastest lap Reason out,
remarks
1 1 14  
Porsche Carrera RSR
Al Holbert, USA
2994 B6 GTO 40 laps, 59.24,007 2      
2 2    
Porsche Carrera RSR
Hurley Haywood, USA
2994 B6 GTO 40 laps, 59.25,977 3      
3 3    
Porsche Carrera RSR
Michael Keyser, USA
2994 B6 GTO 40 5      
4 4   Brumos Porsche
Porsche Carrera RSR
Peter Gregg, USA
2994 B6 GTO 39 1      
5 5    
Porsche Carrera RSR
Charlie Kemp, USA
2994 B6 GTO 39 24      
6 6    
Porsche Carrera RSR
John O'Steen, USA
2994 B6 GTO 39 27      
7 7    
Porsche Carrera RSR
Bob Hagestad, USA
2994 B6 GTO 39 7      
8 8 66  
Chevrolet Monza
Tom Nehl, USA
  V8 GTO 38 8      
9 1 33 Bob Sharp Racing
Datsun 240Z
Bob Sharp, USA
2400? L6 GTU 38 10      
10 9    
Porsche Carrera RSR
Norm Ridgely, CDN
2994 B6 GTO 37 11      
11 10    
Chevrolet Corvette
Dale Kreider, USA
  V8 GTO 36 13      
12 11    
Chevrolet Corvette
Phil Currin, USA
  V8 GTO 36 19      
13 12    
Chevrolet Corvette
Zack Spratlin, USA
  V8 GTO 36 20      
14 2    
Porsche 911 S
Don Parish, USA
2400? B6 GTU 35 15      
15 3    
Porsche 911 S
John Belperche, USA
2400? B6 GTU 35 17      
16 13    
Chevrolet Corvette
Ford Smith, USA
  V8 GTO 34 22      
17 4    
Porsche 911 S
Albert Naon, USA
2400? B6 GTU 34 16      
18 14    
Chevrolet Corvette
Jerry Lancaster, USA
  V8 GTO 34 26      
19 5    
Porsche 911 S
Brian Hardacre, CDN
2400? B6 GTU 32 29      
20 15    
Ford Mustang
Tom Ross, USA
  V8 GTO 32 28      
21 16    
Ford Mustang
Lem Cammack, USA
  V8 GTO 32 19      
22 6    
VW-Porsche 914/6
John Hulen, USA
1991 B6 GTU 31 21      
DNF 17    
De Tomaso Pantera
Hugh Kleinpeter, USA
5763 V8 GTO 11 14      
DNF 18   John Greenwood Racing
Chevrolet Corvette
John Greenwood, USA
5736 V8 GTO 11 4      
DNF 19    
Porsche Carrera RSR
George Dyer, USA
2994 B6 GTO 8 6      
DNF 20    
Chevrolet Camaro
Herb Jones Jr, USA
  V8 GTO 7 12      
DNF 21    
Porsche Carrera RSR
Juan Carlos Bolanos, MEX
2994 B6 GTO 7 9      
DNF 22    
Chevrolet Camaro
Byron Cook, USA
  V8 GTO 5 25      
DNF 23    
Chevrolet Corvette
Scott Voeltz, USA
  V8 GTO 3 30      
DNF 24    
Chevrolet Corvette
Barry Ruble
  V8 GTO 1 23      
DSQ      
Porsche 911 S
David White, USA
2400? B6 GTU   11      
DNS   2  
Chevrolet Monza
Horst Kwech, USA
  V8 GTO          
DNS   111 North American Racing Team
Ferrari 365 GT4 Berlinetta Boxer
Milt Minter, USA
4390 V12 GTO