# 1990 IMSA GT Championship

The 1990 Camel GT Championship season was the 20th season of the IMSA GT Championship auto racing series. It consisted of GTP and Lights classes of prototypes, as well as Grand Tourer-style racing cars which ran in the GTO and GTU classes, as well as a tube-frame All-American Challenge (AAC) class during select GT-only rounds. It began on February 3, 1990, and ended November 11, 1990, after twenty rounds.

## Schedule

The GT and Prototype classes did not participate in all events, nor did they race together at shorter events. The AAC class only participated in GT-only events. Races marked with All had all classes on track at the same time.
| Rnd | Race | Length | Class | Circuit | Date |
| 1 | SunBank 24 at Daytona | 24 Hours | All | Daytona International Speedway | February 3 February 4 |
| 2 | Nissan Grand Prix of Miami | 2 Hours 45 Minutes | Proto | Streets of Miami | February 25 |
| 2 | Nissan Grand Prix of Miami | 45 Minutes | GT | Streets of Miami | February 25 |
| 3 | 12 Hours of Sebring | 12 Hours | All | Sebring International Raceway | March 17 |
| 4 | Nissan Grand Prix of Atlanta | 500 km | Proto | Road Atlanta | April 1 |
| 5 | Toyota Grand Prix of Long Beach | 1 Hour | GT | Long Beach Street Circuit | April 21 |
| 6 | Toyota Grand Prix of Palm Beach | 3 Hours | Proto | West Palm Beach street course | April 22 |
| 7 | Camel Grand Prix of the Heartland | 2 Hours | GT | Heartland Park | May 5 |
| 7 | Camel Grand Prix of the Heartland | 300 km | Proto | Heartland Park | May 6 |
| 8 | Toyota Trucks Lime Rock Grand Prix | 150 Laps | Proto | Lime Rock Park | May 28 |
| 9 | Nissan Grand Prix of Ohio | 500 km | Proto | Mid-Ohio Sports Car Course | June 3 |
| 9 | Nissan Grand Prix of Ohio | 300 km | GT | Mid-Ohio Sports Car Course | June 3 |
| 10 | Nissan Grand Prix of Mosport | 300 km | GT | Mosport Park | June 24 |
| 11 | Camel Continental | 500 km | Proto | Watkins Glen International | July 1 |
| 12 | Grand Prix of the Meadowlands | 45 Minutes | GT | Meadowlands Sports Complex | July 14 |
| 13 | California Camel Grand Prix | 300 km | Proto | Sears Point Raceway | July 15 |
| 14 | G.I. Joe's Camel Grand Prix | 300 km | Proto | Portland International Raceway | July 29 |
| 14 | G.I. Joe's Camel Grand Prix | 1 Hour 30 Minutes | GT | Portland International Raceway | July 29 |
| 15 | Nissan Grand Prix of Road America | 300 km | GT | Road America | August 19 |
| 15 | Nissan Grand Prix of Road America | 500 km | Proto | Road America | August 19 |
| 16 | Nissan Camel Grand Prix of San Antonio | 2 Hours | Proto | San Antonio street course | September 2 |
| 16 | Nissan Camel Grand Prix of San Antonio | 45 Minutes | GT | San Antonio street course | September 2 |
| 17 | The New York 500 | 500 km | GT | Watkins Glen International | September 23 |
| 18 | The Jamesway 300 | 2 Hours | GT | Lime Rock Park | September 29 |
| 19 | Nissan World Challenge of Tampa | 200 Miles | Proto | Florida State Fairgrounds | September 30 |
| 20 | Camel Grand Prix of Greater San Diego | 1 Hour | GT | Del Mar Fairgrounds | November 10 |
| 20 | Camel Grand Prix of Greater San Diego | 1 Hour 45 Minutes | Proto | Del Mar Fairgrounds | November 11 |

## Season results

| Rnd | Circuit | GTP Winning Team | Lights Winning Team | GTO Winning Team | GTU Winning Team | Results |
| Rnd | Circuit | GTP Winning Drivers | Lights Winning Drivers | GTO Winning Drivers | GTU Winning Drivers | Results |
| 1 | Daytona | #61 Castrol Jaguar | #36 Erie Scientific Racing | #15 Tru-Cur Roush | #71 Peter Uria Racing | Results |
| 1 | Daytona | Davy Jones Andy Wallace Jan Lammers | John Grooms Frank Jellinek Michael Greenfield | Robby Gordon Calvin Fish Lyn St. James | Peter Uria Bob Dotson Jim Pace Rusty Scott | Results |
| 2 | Miami | #84 Nissan Performance | #32 Spice Engineering | #75 Cunningham Racing | #96 Leitzinger Racing | Results |
| 2 | Miami | Geoff Brabham Chip Robinson Bob Earl | Tomas Lopez Fermín Vélez | Steve Millen | David Loring | Results |
| 3 | Sebring | #83 Nissan Performance | #8 Essex Racing | #15 Roush Racing | #95 Leitzinger Racing | Results |
| 3 | Sebring | Derek Daly Bob Earl | Tom Hessert Charles Morgan | Robby Gordon Calvin Fish Lyn St. James | Butch Leitzinger Chuck Kurtz David Loring | Results |
| 4 | Road Atlanta | #83 Nissan Performance | #32 Spice Engineering | Did Not Participate | Did Not Participate | Results |
| 4 | Road Atlanta | Geoff Brabham Derek Daly | Tomás López Fermín Vélez | | | Results |
| 5 | Long Beach | Did Not Participate | Did Not Participate | #6 Whistler Radar | #38 Mazda Motorsports | Results |
| 5 | Long Beach | | | Dorsey Schroeder | John Finger | Results |
| 6 | Palm Beach | #83 Nissan Performance | #32 Spice Engineering | Did Not Participate | Did Not Participate | Results |
| 6 | Palm Beach | Geoff Brabham Derek Daly | Tomás López Fermín Vélez | | | Results |
| 7 | Heartland | #99 All American Racers | #4 S & L Racing | #1 Mazda | #37 Mazda Motorsports | Results |
| 7 | Heartland | Juan Manuel Fangio II | Scott Schubot Linda Ludemann | Pete Halsmer | Lance Stewart | Results |
| 8 | Lime Rock | #61 Castrol Jaguar | #80 Brieri Racing | Did Not Participate | Did Not Participate | Results |
| 8 | Lime Rock | Price Cobb John Nielsen | Martino Finotto Ruggero Melgrati | | | Results |
| 9 | Mid-Ohio | #83 Nissan Performance | #32 Spice Engineering | #1 Mazda | #07 Full Time Racing | Results |
| 9 | Mid-Ohio | Geoff Brabham Derek Daly | Perry McCarthy Tomás López | Pete Halsmer | Stu Hayner | Results |
| 10 | Mosport | Did Not Participate | Did Not Participate | #75 Cunningham Racing | #00 Full Time Racing | Results |
| 10 | Mosport | | | Steve Millen | Don Knowles | Results |
| 11 | Watkins Glen | #84 Nissan Performance | #80 Brieri Racing | Did Not Participate | Did Not Participate | Results |
| 11 | Watkins Glen | Bob Earl Chip Robinson | Martino Finotto Ruggero Melgrati | | | Results |
| 12 | Meadowlands | Did Not Participate | Did Not Participate | #9 Whistler Radar | #96 Leitzinger Racing | Results |
| 12 | Meadowlands | | | Robby Gordon | David Loring | Results |
| 13 | Sears Point | #99 All American Racers | #32 Spice Engineering | Did Not Participate | Did Not Participate | Results |
| 13 | Sears Point | Juan Manuel Fangio II | Dan Marvin Tomás López | | | Results |
| 14 | Portland | #60 Castrol Jaguar | #32 Spice Engineering | #6 Whistler Radar | #37 Mazda Motorsports | Results |
| 14 | Portland | Davy Jones | Parker Johnstone Tomás López | Dorsey Schroeder | Lance Stewart | Results |
| 15 | Road America | #83 Nissan Performance | #80 Brieri Racing | #75 Cunningham Racing | #37 Mazda Motorsports | Results |
| 15 | Road America | Geoff Brabham | Martino Finotto Ruggero Melgrati | Steve Millen | Lance Stewart | Results |
| 16 | San Antonio | #99 All American Racers | #32 Spice Engineering | #1 Mazda Motorsports | #96 Leitzinger Racing | Results |
| 16 | San Antonio | Juan Manuel Fangio II | Parker Johnstone Tomás López | Pete Halsmer | David Loring | Results |
| 17 | Watkins Glen | Did Not Participate | Did Not Participate | #6 Whistler Radar | #37 Mazda Motorsports | Results |
| 17 | Watkins Glen | | | Dorsey Schroeder | John Finger Amos Johnson | Results |
| 18 | Lime Rock | Did Not Participate | Did Not Participate | #9 Whistler Radar | #00 Full Time Racing | Results |
| 18 | Lime Rock | | | Robby Gordon | Don Knowles | Results |
| 19 | Tampa | #16 Dyson Racing | #19 David Tennyson | Did Not Participate | Did Not Participate | Results |
| 19 | Tampa | James Weaver | Martino Finotto Ruggero Melgrati | | | Results |
| 20 | Del Mar | #99 All American Racers | #48 Comptech Racing | #9 Whistler Radar | #00 Full Time Racing | Results |
| 20 | Del Mar | Juan Manuel Fangio II | Parker Johnstone Doug Peterson | Robby Gordon | Don Knowles | Results |

## Drivers Championships

Geoff Brabham won the GTP Drivers Championship driving a Nissan GTP ZX-T and a Nissan NPT-90.

## Manufacturers championships

A championship for manufacturers was awarded to each of the four classes. For the prototype classes, only the manufacturer of the engine was used rather than the manufacturer of the chassis.
Points were awarded to the top 10 on the scale of 20-15-12-10-8-6-4-3-2-1, with exception for the 12 Hours of Sebring, which added five points to each position on the scale, and the 24 Hours of Daytona, which added eight points.
Only the highest-ranking entry from a manufacturer was awarded points at each event. Any other finishes by that manufacturer were merely skipped.

### GTP Championship

| Pos | Manufacturer | Rd 1 | Rd 2 | Rd 3 | Rd 4 | Rd 6 | Rd 7 | Rd 8 | Rd 9 | Rd 11 | Rd 13 | Rd 14 | Rd 15 | Rd 16 | Rd 19 | Rd 20 | Total |
| 1 | Nissan | 14 | 20 | 25 | 20 | 20 | 15 | 10 | 20 | 20 | 15 | 10 | 20 | 15 | 15 | 12 | 251 |
| 2 | Jaguar | 28 | | 17 | 15 | 12 | 8 | 20 | 2 | 12 | 10 | 20 | 15 | 3 | 10 | 15 | 187 |
| 3 | Toyota | 9 | 4 | 7 | 12 | 4 | 20 | 8 | 12 | 3 | 20 | 15 | 12 | 20 | 6 | 20 | 172 |
| 4 | Porsche | 20 | 12 | 15 | 10 | 3 | 2 | 6 | 8 | 15 | 8 | 3 | 10 | 8 | 20 | 10 | 150 |
| 5 | Chevrolet | | | 8 | 3 | 10 | 12 | 15 | 10 | 1 | 2 | 12 | 4 | 2 | | | 79 |
| 6 | Pontiac | | | | 2 | 6 | | 4 | 4 | | 3 | 6 | | 1 | 2 | 3 | 31 |
| 7 | Oldsmobile | | | | | | | | | 4 | | | | 6 | | | 10 |
| 8 | Audi | | 6 | | | | | | | | | | | | | | 6 |
| 9 | Ferrari | | | | | | | | | 2 | | | | | | | 2 |

### Lights Championship

| Pos | Manufacturer | Rd 1 | Rd 2 | Rd 3 | Rd 4 | Rd 6 | Rd 7 | Rd 8 | Rd 9 | Rd 11 | Rd 13 | Rd 14 | Rd 15 | Rd 16 | Rd 19 | Rd 20 | Total |
| 1 | Buick | 20 | 20 | 25 | 20 | 20 | 20 | 15 | 20 | 12 | 20 | 20 | 15 | 20 | 15 | 12 | 274 |
| 2 | Ferrari | 9 | 15 | 17 | 15 | 15 | 12 | 20 | 12 | 20 | 12 | 15 | 20 | 4 | 20 | 15 | 221 |
| 3 | Pontiac | 23 | 4 | 20 | 8 | 3 | 4 | | | | 4 | | | 8 | | 20 | 94 |
| 4 | Mazda | 28 | 1 | 6 | 6 | | | 10 | | 15 | | | 8 | | | | 74 |
| 5 | Chevrolet | 18 | | | | | | | | | 6 | 8 | | | | | 32 |

### GTO Championship

| Pos | Manufacturer | Rd 1 | Rd 2 | Rd 3 | Rd 5 | Rd 7 | Rd 9 | Rd 10 | Rd 12 | Rd 14 | Rd 15 | Rd 16 | Rd 17 | Rd 18 | Rd 20 | Total |
| 1 | Mercury | 28 | 12 | 25 | 20 | 15 | 15 | 12 | 20 | 20 | 10 | 8 | 20 | 20 | 20 | 245 |
| 2 | Mazda | 23 | 15 | 17 | 15 | 20 | 20 | 8 | 15 | 10 | 6 | 20 | 8 | 6 | 15 | 198 |
| 3 | Nissan | | 20 | | 12 | 3 | 10 | 20 | 12 | 15 | 20 | 15 | | 15 | 12 | 154 |
| 4 | Chevrolet | 14 | 6 | 15 | 6 | 4 | 2 | 10 | 4 | 4 | 2 | 10 | 10 | 3 | 8 | 98 |
| 5 | Ferrari | | | | | 2 | 12 | 15 | | | 15 | | 15 | 8 | | 67 |
| 6 | Ford | 16 | 8 | | 8 | | | | 6 | | | | | | 6 | 44 |

### GTU Championship

| Pos | Manufacturer | Rd 1 | Rd 2 | Rd 3 | Rd 5 | Rd 7 | Rd 9 | Rd 10 | Rd 12 | Rd 14 | Rd 15 | Rd 16 | Rd 17 | Rd 18 | Rd 20 | Total |
| 1 | Mazda | 28 | 10 | 20 | 20 | 20 | 12 | 15 | 12 | 20 | 20 | 10 | 20 | 12 | 15 | 234 |
| 2 | Dodge | 12 | 15 | 13 | 3 | 12 | 20 | 20 | 15 | 15 | 12 | 15 | 12 | 20 | 20 | 204 |
| 3 | Nissan | 14 | 20 | 25 | 10 | 15 | 15 | 8 | 20 | 10 | 15 | 20 | 2 | 15 | 12 | 201 |
| 4 | Porsche | 23 | | | | | | 10 | | 2 | 1 | 1 | 8 | 6 | | 51 |
| 5 | Pontiac | 16 | 4 | 8 | | | | | | | | | | | | 28 |