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1975 Indianapolis 500
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1975 Indianapolis 500
The 59th 500 Mile International Sweepstakes was held at the Indianapolis Motor Speedway in Speedway, Indiana on Sunday, May 25, 1975. A. J. Foyt started on the pole position and Bobby Unser won his second Indianapolis 500. Dan Gurney, one of the founders of All American Racers, who finished second as a driver himself in 1968–1969, won his first and only Indy 500 as a car owner. Gurney's Eagle chassis itself scored its third "500" win. The race was part of the 1975 USAC National Championship Trail.
On the 174th lap (435 miles), a heavy downpour pelted the Speedway, and officials immediately ended the race, just 26 laps short of the scheduled distance. Bobby Unser was leading the race at the red flag, and was declared the winner. Defending champion Johnny Rutherford was in second place, and pole-sitter A. J. Foyt came home third.
Tom Sneva survived a spectacular crash in turn two on lap 125. His car touched wheels with the car of Eldon Rasmussen, and flipped into the catch fence near the Turn Two Suites. The engine on Sneva's car ripped off in a huge fire-flash, and the car came to rest upright with Sneva trapped in the cockpit. Sneva miraculously suffered only minor injuries, and walked away from the wreck with assistance from the safety crews.
On the morning of the race, the Indianapolis Motor Speedway was ceremoniously designated to the National Register of Historic Places. In addition, the Hulman family celebrated thirty years of ownership of the facility.
A year earlier (1974), the race was held in the wake of the energy crisis. USAC cut out a week of practice, and trimmed time trials from four days down to two days, in order to reduce energy consumption. These changes were well received by competitors and fans, and USAC decided to make most of the schedule changes permanent. However, time trials were restored back to four days for 1975 and beyond. In addition, the opening day of practice was pushed back 48 hours to Saturday (in 1974 Opening Day was not until Monday); although rain would wash out Saturday and cars would not take to the track until Sunday. This basic schedule would remain in place through 1997.
For the second year in a row, pop-off valves were required during time trials. Turbocharger "boost" levels were set at 80 inHG maximum. Top speeds would be in the low to mid-190 mph range, and would not challenge the existing track record.
On Thursday May 8, Gordon Johncock showed himself as a favorite for the pole, completing a practice lap at 195.228 mph. Johncock consistently led the speed charts on four of the practice days. A. J. Foyt was close behind, topping the speed chart twice.
Pole day dawned sunny and mild. Rookie Al Loquasto was the first driver out to qualify. Mike Mosley (187.833 mph) led the speeds early on, and was the fastest car through the first hour. At 12:15 p.m., Tom Sneva (190.094 mph) moved into the top spot.
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1975 Indianapolis 500 AI simulator
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1975 Indianapolis 500
The 59th 500 Mile International Sweepstakes was held at the Indianapolis Motor Speedway in Speedway, Indiana on Sunday, May 25, 1975. A. J. Foyt started on the pole position and Bobby Unser won his second Indianapolis 500. Dan Gurney, one of the founders of All American Racers, who finished second as a driver himself in 1968–1969, won his first and only Indy 500 as a car owner. Gurney's Eagle chassis itself scored its third "500" win. The race was part of the 1975 USAC National Championship Trail.
On the 174th lap (435 miles), a heavy downpour pelted the Speedway, and officials immediately ended the race, just 26 laps short of the scheduled distance. Bobby Unser was leading the race at the red flag, and was declared the winner. Defending champion Johnny Rutherford was in second place, and pole-sitter A. J. Foyt came home third.
Tom Sneva survived a spectacular crash in turn two on lap 125. His car touched wheels with the car of Eldon Rasmussen, and flipped into the catch fence near the Turn Two Suites. The engine on Sneva's car ripped off in a huge fire-flash, and the car came to rest upright with Sneva trapped in the cockpit. Sneva miraculously suffered only minor injuries, and walked away from the wreck with assistance from the safety crews.
On the morning of the race, the Indianapolis Motor Speedway was ceremoniously designated to the National Register of Historic Places. In addition, the Hulman family celebrated thirty years of ownership of the facility.
A year earlier (1974), the race was held in the wake of the energy crisis. USAC cut out a week of practice, and trimmed time trials from four days down to two days, in order to reduce energy consumption. These changes were well received by competitors and fans, and USAC decided to make most of the schedule changes permanent. However, time trials were restored back to four days for 1975 and beyond. In addition, the opening day of practice was pushed back 48 hours to Saturday (in 1974 Opening Day was not until Monday); although rain would wash out Saturday and cars would not take to the track until Sunday. This basic schedule would remain in place through 1997.
For the second year in a row, pop-off valves were required during time trials. Turbocharger "boost" levels were set at 80 inHG maximum. Top speeds would be in the low to mid-190 mph range, and would not challenge the existing track record.
On Thursday May 8, Gordon Johncock showed himself as a favorite for the pole, completing a practice lap at 195.228 mph. Johncock consistently led the speed charts on four of the practice days. A. J. Foyt was close behind, topping the speed chart twice.
Pole day dawned sunny and mild. Rookie Al Loquasto was the first driver out to qualify. Mike Mosley (187.833 mph) led the speeds early on, and was the fastest car through the first hour. At 12:15 p.m., Tom Sneva (190.094 mph) moved into the top spot.
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