1973 24 Hours of Daytona – Race Profile and Photo Gallery Page Four
The other Porsche 911 Carrera RS at Daytona, in Sunoco blue, was entered by Penske Racing of Reading, Pennsylvania and would be driven by Mark Donohue and George Follmer. Roger Penske and his shop were known for immaculate car preparation and a Penske prepared Ferrari 512M set a Daytona course record in 1971 (133.919 mph) at the hands of Mark Donohue. In 1971 it was the dream of many Ferrari fans that Enzo Ferrari would allow Penske to prepare some of their 512M race cars. Only then, they thought, would Ferrari have a chance to beat the Porsche 917 in the championship that year. It was not to be.
At the time The Daytona Beach Morning Journal gave the impression in some of their stories that both of the new Porsche 911 Carrera RS’s were private entries, albeit with a little factory support. In reality both of the new Porsches were “factory owned” with the factory selecting respected American teams like Brumos and Penske to “represent Porsche” in the championship season opener at Daytona. This was a cooperative agreement between Porsche, Brumos and Penske and would be supervised by Porsche’s senior engineer, Norbert Singer.
Singer brought with him from Germany several factory mechanics who would help staff both the Brumos and Penske pits. During the race Singer did double duty by going back and forth between the two pits to talk to drivers, mechanics, asking questions and giving advice. Gregg later said that Singer told him if he kept the car under 7500 rpm it would last the 24 hours. That turned out to be good advice.