1978 Trans-Am Series

The 1978 Trans-Am Series was the thirteenth running of the Sports Car Club of America's premier series. It was the first time the series left North America (i.e. the United States and Canada), with a round in Mexico at the end of the season. All races except for the Six Hours of Watkins Glen ran for approximately one hundred miles.

Round	Date	Circuit	Winning driver (TA2)	Winning vehicle (TA2)	Winning driver (TA1)	Winning vehicle (TA1)
1	May 21	Sears Point	Greg Pickett	Chevrolet Corvette	Gene Bothello	Chevrolet Corvette
2	June 4	Westwood	Ludwig Heimrath	Porsche 935	Nick Engels	Chevrolet Corvette
3	June 11	Portland	Tuck Thomas	Chevrolet Monza	Bob Matkowitch	Chevrolet Corvette
4	June 25	Mont-Tremblant	Monte Sheldon	Porsche 935	Bob Tullius	Jaguar XJS
5	July 8	Watkins Glen‡	Hal Shaw, Jr. Monte Shelton	Porsche 935	Brian Fuerstenau Bob Tullius	Jaguar XJS
6	August 13	Brainerd	Jerry Hansen	Chevrolet Monza	Bob Tullius	Jaguar XJS
7	August 19	Mosport	Greg Pickett	Chevrolet Corvette	Bob Tullius	Jaguar XJS
8	September 4	Road America	Greg Pickett	Chevrolet Corvette	Bob Tullius	Jaguar XJS
9	October 8	Laguna Seca	Greg Pickett	Chevrolet Corvette	Bob Tullius	Jaguar XJS
10	November 5	Mexico City	Ludwig Heimrath	Porsche 935	Bob Tullius	Jaguar XJS

‡ The Watkins Glen 6 Hours was a round of the World Championship for Makes, the overall winner was an FIA Group 5 Porsche 935

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1. Bob Tullius – 189 points
2. Babe Headley – 98.5 points
3. Frank Joyce – 72 points
4. Brian Fuerstenau – 45 points
5. John Huber – 44.5 points

1. Greg Pickett – 132.5 points
2. Tuck Thomas – 114.5 points
3. Ludwig Heimrath – 102 points
4. Hal Shaw, Jr. – 73 points
5. Monte Sheldon – 71 points

1. Jaguar – 73 points
2. Chevrolet – 69 points
3. Datsun – 3 points

1. Chevrolet – 74 points
2. Porsche – 65 points
3. Pontiac – 10 points

1. Porsche – 72 points
2. Datsun – 19 points
3. British Leyland – 18 points
4. Mazda – 18 points
5. Opel – 12 points