On October 15, 2003, a significant restructuring of the Grand American Rolex Sports Car Series and Grand Am Cup classes was announced.
Starting next year, the Grand Sport I (GS I) cars would be called Super Grand Sport (SGS) and compete in the Rolex Sports Car Series.
Following this news, there were changes in the Grand Am Cup category. In 2004, there would be a single Grand Sport (GS) and Sport Touring (ST) class.
While the classifications changed the rules remained the same. The cars are relatively unchanged from their road-going versions – modifications are mandated mainly for safety – roll cages, window nets, etc. They also used spec DOT-approved tires produced by Hoosier. Based on performance potential, the cars are placed in the Grand Sport or Sport Touring group.
The 2004 season consists of ten race weekends and starts in January at Daytona International Speedway, which is followed by a second event in Florida at Homestead-Miami Speedway. In April, the series will make a visit to Phoenix International Raceway for the Twin 200s. The Grand Sport and Sport Touring teams will compete in separate races. Then the series travels north of the border to compete at Le Circuit Mont-Tremblant. After this event, race weekends will take place Watkins Glen International, Mid-Ohio Sports Car Course and a second visit to Homestead-Miami Speedway. The final three rounds will be conducted in October and start with Virginia International Raceway. The penultimate weekend is at Alabama’s, Barber Motorsport Park, with the finale taking place at California Speedway.
Round three of the 2004 Grand Am Cup season was held at Phoenix International Raceway. The series conducted separate races for the Grand Sport and Sport Touring classes. The Grand Sport teams would compete Friday evening on Phoenix’s 1.51-mile roval in the Twin 200.
|The start of round three for the Grand Am Cup Grand Sport competitors at Phoenix International. On the pole is the No.33 Unitech Racing Nissan 350Z of Mike Cronin, Jr. Beside Cronin, Jr. is the point’s leader, Craig Stanton, in TheRaceSite.com sponsored Porsche 996. In the second row is Canadian, Greg Wilkins in the Doncaster Racing prepared Porsche 996 and the No. 35 Nissan 350Z driven by Michiel Schuitemaker.|
|Craig Stanton and Terry Borcheller won the first two rounds of the season driving, the No. 44 Porsche 996. The Grand Sport point’s leaders scored their third victory of the year at Phoenix. The pair topped the timesheets in the two practice sessions and Stanton qualified on the outside of the front row. Borcheller took the lead in the race and went on to grab the win when the Unitech Nissan encountered problems.|
|Last year’s Grand Sport I champions, Doncaster Racing, were having a difficult start to the season. In the first two races of the season, they only managed fifteenth and nineteenth place finishes. At Phoenix International Raceway, the team was back on form. Greg Wilkins was sharing the Porsche with the team’s primary driver, Robert Julien and was third quickest in qualifying. Julien was in second place at the end of the race.|
|It was an eventful weekend for the second Unitech Racing entry. Sharing the No. 23 Nissan 350Z was Blake Rosser and Kelly Collins. Rosser was to qualify the Nissan, but the session was cut short when he caused an incident. The pair started second last in the twenty-eight car field. They moved up the order and inherited a third-place finish when the Nonnamaker Porsche was penalized for an aggressive pass.|
|The second TheRaceSite.com Porsche 996 was shared by the father and son team of Joe and Wayne Nonnamaker. The senior Nonnamaker qualified the Porsche and was seventeenth fastest. Wayne was in fourth place with six-laps remaining in the event when he clipped the Istook / Aines Motorsport Audi S4, causing it to spin. Nonnamaker was penalized ten-seconds for the aggressive move and finished fourth.|
|The No. 33 Unitech Racing Nissan 350Z driven by Mike Cronin, Jr. and Stu Hayner finished third in the opening round at Daytona International Speedway. The team struggled in race two at Homestead-Miami Speedway, but at Phoenix, Cronin put the Nissan on the pole. They were competitive and led for more than half the contest before a half-shaft failed on lap-75. The crew repaired the car and they returned to finish twentieth.|
|The round three Grand Am Cup Grand Sport podium at Phoenix International Raceway. In the center are the winners from TheRaceSite.com, Craig Stanton and Terry Borcheller. The pair had a commanding lead in the Driver’s points after three victories and three races. Standing on the left and earning their first rostrum of the year are Greg Wilkins and Robert Julien. Completing the podium are Blake Rosser and Kelly Collins.|
|1||GS||Stanton / Borcheller||Porsche 996||The Race Site.com||128|
|2||GS||Wilkins / Julien||Porsche 996||Doncaster Racing||128|
|3||GS||Rosser / Collins||Nissan 350Z||Unitech Racing||127|
|4||GS||Nonnamaker / Nonnamaker||Porsche 996||The Race Site.com||127|
|5||GS||Crescentini / Pobst||Audi S4||LM Racing||127|
|6||GS||Plummer / Cosmo||Porsche 996||BGB Motorsports||126|
|7||GS||Picket / Pumpelly||Porsche 996||Race Prep Motorsports||126|
|8||GS||Thornton / Russell||BMW M3||Automatic Racing||126|
|9||GS||Schuitemaker / Zacharias||Nissan 350Z||Schuitemaker Motorsports||125|
|10||GS||MacDonald / Brown||Ford Mustang Cobra||Frederick Motorsports||125|
|11||GS||Powell / Weinberg||Cadillac CTS-V||Powell Motorsport||125|
|12||GS||Shreiner / Lapcevich||Ford Mustang Cobra||Shreiner Racing||125|
|13||GS||Wortzman / McCalmont||BMW M3||Zoom Motorsports||125|
|14||GS||Snipes / Sachs||Cadillac CTS-V||Snipes Motorsport||123|
|15||GS||MacAlpine / Rehagen||Ford Mustang Cobra||Rehagen Racing||123|
|16||GS||Duarta / Bailey||Acura NSX||DAL Motorsports||122|
|17||GS||Masessa / Nonnamaker||Porsche 996||The Race Site.com||120|
|18||GS||Stubbs / Camp||Ford Mustang Cobra||Frederick Motorsports||120|
|19||GS||Zavodsky / Martin||Mustang Cobra SVT||Rehagen Racing||118|
|20||GS||Cronin / Hayner||Nissan 350Z||Unitech Racing||100|
|21||GS||Kohler / Smith||Mustang Saleen||TF Racing||78|
|22||GS||Smith / Levitas||Porsche 996||Race Prep Motorsports||69|
|23||GS||Assentato / Earl||Mustang Saleen||TF Racing||52|
|24||GS||Yeakle / Baughman||Pontiac Firebird||Michael Baughman Racing||48|
|25||GS||Duarta / Bailey / Morrison||Acura NSX||DAL Motorsports||24|
|26||GS||Krohn / Fox||Porsche 996||G&W Motorsports||21|
|27||GS||Hainer / Istook||Audi S4||Istook / Aines Motorsport Group||15|
|28||GS||Sofronas / Munson||BMW M3||Anchor Racing||0|
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