News & Multimedia

GRAND-AM 101: The Daytona Prototype Class

The GRAND-AM Daytona Prototype category has attracted the attention of superstar drivers and universally recognized teams through its extremely raceable and relatively affordable format. With its
intelligent design, the class has revolutionized sports car racing with plentiful battles at the front of
the field and close finishes in virtually every race.

The DPs compete in the premier class of the GRAND-AM Rolex Sports Car Series. These are exotic, mid-engine machines that are purpose-built for competition. They are low to the ground and are
capable of speeds in excess of 185 mph. They also feature the latest in safety technology, including carbon-fiber side-impact panels and a multi-point roll cage with a unique center post at mid-windshield.

The rules were designed by GRAND-AM with the intention of containing costs while promoting close competition and driver safety. The class was introduced on the eve of the 2002 Rolex 24 At Daytona, and debuted at that event one year later. Chassis constructors Fabcar, Multimatic, Doran and Picchio fielded DPs in the inaugural 2003 season, with Riley, Crawford and Chase introducing models the following year.

After five years with only minor rule changes, DP constructors were allowed to update their designs or transfer their licenses for the 2008 season, ensuring the stability of the class. Lola (which purchased the Multimatic franchise), Dallara (Doran) and Coyote (Fabcar) purchased existing licenses and debuted cars, while Riley and Crawford presented updated versions.

Rule changes for the 2011 season included the use of the Assisted Gearshift System (AGS or paddle shift) transmissions for cars piloted by a Pro-Am driver, and a change in the size of the specified sideplates on the rear wings.

The 2012 season will see the introduction of the next generation of Daytona Prototypes, with revisions including a smaller driver compartment and OEM-branded DPs, such as the new Chevrolet Corvette Daytona Prototype. GRAND-AM is also studying engine packages with the possible introduction of turbocharged engines beginning with the 2013 season.

Although each chassis is designed and manufactured independently, competitor modifications are highly limited by GRANDAM rules. Certain parts, including series-standard rear wings, are mandated by the series. A DP chassis costs about $400,000, but the cars can be raced in their current configuration for several years within GRAND-AM’s stable rules package.

For instance, the original Riley chassis that debuted in 2004 continued to race competitively with updates in the Rolex Series – winning two races in 2008 – while Brumos Racing won two races in 2009 with the original version of the Riley chassis.

Manufacturers are welcome to submit any production-based engine for approval in the series. Engines that are approved for competition include power plants from Chevrolet (5-liter V-8), Lexus (5-liter V-8), BMW (5-liter V-8), Porsche (4-liter flat six and 5-liter V-8), Ford (5-liter V-8), Ferrari (4.5-liter V-6), Honda (3.8-liter V-6) and Infiniti (4.3-liter V-8). All engines are tuned to produce about 500 horsepower and each is capable of being mated to any of the approved DP chassis, which creates an interesting variety of chassis/engine combinations. DPs utilizing engines under 4.5 liters are allowed the advantage of the six-speed gearboxes, while all race cars with larger engines must run five speeds.

In addition to official and approved chassis designs and engines tuned to GRAND-AM specifications, DP competition is equalized further through minimum car weight. DPs with smaller engines can run at lighter minimum weights than their counterparts with more power. Cars fitted with engines less than 4 liters can weigh 2,200 pounds or more. DPs running engines 4 liters and up to the maximum 5 liters must weigh in at a minimum 2,250 pounds.

 

 

Show More Show Less
Now Viewing
GRAND-AM 101: The Daytona Prototype Class
 
GRAND-AM 101: The Daytona Prototype Class
The GRAND-AM Daytona Prototype category has attracted the attention of superstar drivers and universally recognized teams through its extremely raceable and relatively affordable format. With its intelligent design, the class has revolutionized sports car racing with plentiful battles at the front of the field and close finishes in virtually every race.
Read More
Related Media
Kyle Busch
 
No Catching Dominant Busch at Prolonged Brickyard
Never before had a driver in this NASCAR race been so dominant, but the defending Sprint Cup Series and Brickyard 400 champion had to endure a series of four restarts beginning on Lap 153 that prolonged a 160-lap race 10 additional laps at the Indianapolis Motor Speedway.
Read More
Jeff Gordon and Tony Stewart
 
Two Hoosiers, One Final Memorable Moment at The Brickyard
Tony Stewart couldn’t imagine a better farewell, aside from winning, than to invite Jeff Gordon for one more 2.5-mile drive at the track that has meant so much to both NASCAR rivals. Sunday was supposed to be Stewart’s final Brickyard 400. Last year was supposed to be Gordon’s swan song.
Read More
Kyle Busch
 
Kyle Busch Wins 2016 Crown Royal 400 at the Brickyard
The Joe Gibbs Racing driver dominated Sunday’s Crown Royal presents the Combat Wounded Coalition 400 at the Brickyard, leading 149 of 170 laps from the pole and surviving four restarts late in his No. 18 Skittles Toyota. He joined Jimmie Johnson (2008-09) as the only driver to repeat in the NASCAR Sprint Cup Series race at Indianapolis.
Read More
Cassadee Pope
 
Chart-Topping Country Star Cassadee Pope to Sing National Anthem at the Crown Royal presents the Combat Wounded Coalition 400 at the Brickyard
ward-winning country music artist Cassadee Pope will sing the national anthem at Sunday’s Crown Royal presents the Combat Wounded Coalition 400 at the Brickyard.
Read More
Jimmie Johnson
 
Brickyard Hopefully The Elixir for Struggling Hendrick Motorsports
That’s what happens when an entire four-car team synonymous with NASCAR success sputters in an improbable slump. Owner Rick Hendrick’s four cars have failed to finish in the top 10 in the past three races entering Sunday’s Crown Royal presents the Combat Wounded Coalition 400 at the Brickyard.
Read More
Items 1 - 5 of 699
Reserve one of our hospitality suites for your next event!
To start planning your event at the Indianapolis Motor Speedway please fill out our Information Request Form or contact Laura Wyamn at (317) 492-8557 or email at lwyman@brickyard.com.
Latest Tweets
67 days until the @Redbullairrace comes to IMS! RETWEET if you're ready for the action! https://t.co/rAdA6ZNehL
about 4 hours ago