Welcome to nicheforSpeed.com

Current Motorsport Status and History including Formula 1 (F1), World Endurance and GT (WEC, IMSA, Weathertech), IndyCar (NTT), and NASCAR (Monster Cup) racing. Please explore and enjoy your niche for speed.

Prior Season

1973 IMSA GT Season

Next Season

1973 IMSA GT Season
Photo Credit: Mark Windecker.
Champion Constructor: None
Putative Constructor: Toad Hall Porsche (US,0,1)
Champion Driver: Peter Gregg (US,2,2)
Putative Driver: Peter Gregg (US)
Putative Constructor Entry Specification: Model 911 RSR 2.8, 2.81-liter, six-cylinder boxer, magnesium alloy engine, SOHC, fuel injection, five-speed, ventilated disc brakes, steel-fibreglass body/unitary steel chassis, strut-lower wishbone/trailing arms independent suspension, 315 horsepower (F.A. Butzi Porsche, Erwin Komenda, Ernst Fuhrmann, Hans Mezger).

IMSA in 1973 terminates its Manufacturers' Championship award and emphasizes the individual class drivers' titles. Toad Hall Porsche with its 2.8 911 Carrera RSR pulls out to a seemingly safe series lead in 1973 at Mid-Ohio in July before Brumos Porsche unleashes a run that pulls the team back even by Indianapolis in October. A third place finish by Toad Hall in the season finale at Daytona in November proves enough to narrowly edge out its maiden putative constructors' title over Brumos. Peter Gregg of Brumos and Michael Keyser of Toad Hall wage a fierce battle for honors all season before a Gregg victory in the season finale at Daytona in November nets him his second drivers' crown. Mo Carter with his Trans-Am classified Camaro wins over the GTO and GTU entries at Pocono in June.

HeM applies the Putative Model to all racing seasons for two primary purposes: First, to effectively normalize all racing seasons for empirical comparison across the decades, and second, to step clear of series organizers which score season championships primarily out of commercial interest or to attract manufacturer participation. The Putative Model simply scores all seasons in the same fashion as a standard track and field meeting, with the only purpose of tracking what takes place at the finishing stripe If the Putative Champion differs from the nominal Series Champion, please note the (SC) notation below.

Toad Hall Porsche83     Gregg89
Brumos Porsche76     Keyser M83
Felton Camaro25     Haywood44
Silverstone Porsche23     Felton G26
Greenwood Corvette19     Stone G18
Helmick Porsche17     Helmick17

Noteworthy 1973 Races

1973 XXII Sebring 12 Hours Sebring, Florida1973 1973 XXII Sebring 12 Hours At Sebring for the 12 Hour on a very warm day in March, the race comes to a Helmick Porsche Carrera RSR under Peter Gregg (US), Hurley Haywood (US), and Dave Helmick (US) that covers 1175.2 miles (average 97.85 mph), a lap ahead of a Porsche driven by Milt Minter and Michael Keyser. The blistering weather takes a tremendous toll upon the Corvettes, leaving the sturdy Porsche entries to move out front just before the six-hour mark. The Helmick Porsche outlasts its determined Toad Hall competition over the remaining distance for a hard fought victory. The FIA elects not to sanction the event due to its deteriorating track condition, and the decision bars the prototype classification from competing in the annual affair. Only the IMSA sanction provides spectators with a GT and Trans-Am contest. Photo Credit: autosportsltd.com.
1973 6 Hour Mid-Ohio Lexington, Ohio1973 1973 6 Hour Mid-Ohio At Mid-Ohio for the IMSA 6 Hour in July, a Toad Hall Porsche Carrera RSR under Michael Keyser (US) and Bob Beasley (US) takes race honors that covers 491.99 miles (average 81.63 mph), one lap ahead of a Corvette driven by Ike Knupp and Allan Barker. The Toad Hall Porsche moves out front after the race leading Ford Capri of Harry Theodorocopulous and Horst Kwech requires an axle replacement with less than an hour remaining. Photo Credit: Mark Windecker.