The Norma MXX RD Limited which will take part in this year’s Pikes Peak International Hill Climb is ready to head to the United States. Following several development sessions in France, the prototype to be driven by Romain Dumas on June 25 during the « race to the clouds » will complete its preparations on American soil. Before before that, the new car has been revealed…
For his fifth participation in search for his third overall victory at Pikes Peak, Romain Dumas began a small revolution with support from Norbert Santos, head of Norma. Although the Norma MXX RD Limited shares the same carbon monocoque from the 2016-winning M20, several elements have evolved in the last 12 months. With the French constructor, Romain is aiming at a third success in four years, as well as realising a faster time than last year – 8:51.445 – the second quickest of all time. He will be attempting to get even closer to the outright record held by Sébastien Loeb – 8:13.878 – who completed the 12.4 miles at an incredible speed of 90.3 mph.
A new look that hides other novelties…
Romain Dumas and Norma have looked to improve on every parameter possible. This means the aero has changed with all-new bodywork. With a front splitter measuring 7.5 feet and impressive overhangs, the MXX RD Limited has gained in downforce and finesse, benefitting from improved overall efficiency. This result is the fruit of work performed by former members of the Formula Student team Rennteam Uni Stuttgart – Simon Eser, Max Knorr, Fabian Kopp, Sébastien Sorne and Christian Weber – who were in charge of the aero design study for the new package. Computational fluid dynamics played a primary role with several solutions evaluated and refined over the course of several months.
Under the bodywork, the mechanical guts have also been significantly modified. The all-wheel drive system has been retained and optimised. The braking system has been completely revised with a switch to carbon and a new disc/caliper/pad package. Other parts have been specifically made for Pikes Peak, such as wheel hubs by Poly Shape. Intensive work has been done to improve mechanical grip, as RD Limited has continued its long-standing relationship with PKM Consulting. And finally, the tyre provider has changed, as a close partnership with Michelin will provide the rubber for those more imposing wheels. The four cylinder 2.0l Honda will still power the French prototype, but is now equipped with a new turbo and intercooler.
« Wider, longer, better…everything ! »
« We’ve looked to improve everything» explains Romain Dumas. « Following the race last year, we made a long list with Norbert Santos, and we’ve worked on each of these points, one after the other. The aero is an important parameter, as well as braking, which we’ve changed. Tyres were also one of our priorities. In the end, the first tests were good. The car is a little heavier, but that’s because of it’s beefed up nature : it’s wider, longer, better…everything ! It was necessary in order to be quicker. The car is more efficient, there’s no doubt. It’s faster, but also easier to drive. It’s important to have confidence when driving at a place like Pikes Peak. The development of the car went well and we progressed with each session, each time with specific objectives. The last test, actually on the mountain itself, will be big. We’ve put everything we have into making our ambitions possible. »
Ambition will be high for this 95th edition. After initial tests carried out on an airfield, the Pôle Mécanique Alès-Cévennes and at Grand Sambuc circuit, the Norma MXX RD Limited will be tested once in Colorado, between the Le Mans 24 Hours Test Day and the week of the hill climb. Romain Dumas will return to the United States the day after the 24 Hours of Le Mans. « We were thrilled to win at Pikes Peak in 2014 and 2016, but it’s always missed a little something. We’ve never been able to put everything together on race day » admits Romain. « The involvement from Norma and all the members of the RD Limited team is again impressive. I’d like to thank everyone involved in this challenge : friends, partners, suppliers, and all those who believe in the project and who are aiming higher and bigger. There’s that human dimension that you can’t really measure but that makes everything possible. Now we have to finished the preparation in order to take a third victory and perform to the true potential of the car. There are to objectives to meet : the result and how we obtain it. »
Next to Romain Dumas’s Norma MXX, the RD Limited team will enter a Porsche 911 SC 3.0l in the Pikes Peak Open class, with Laure Many at the wheel. The French driver will be taking part in her first race to the clouds.
Norma MXX « RD Limited » – Technical specifications
Chassis
Carbon monocoque homologated FIA Carrosserie composite époxy/carbone Length : 201.96 in.
Width : 77.95 in.
Rear wing: 82.6 in.
Splitter : 7.5 ft
Height (with roll-cage) : 44.4 in. Wheelbase : 96 in.
Wieght : 770 kg
Engine
Type : Honda HPD K20, 4 cylinders Displacement : 2.0l turbo
Power : around 570 hp
All-wheel drive
Sequential gearbox Sadev type SLR Longitudinal transaxle
6 gears + revers
paddle shift, pneumatic input
Suspension
Double wishbone, pushrod Ohlins shocks, modified by PKM Front and rear anti-roll bars Rack and pinion steering
Brakes
6 piston calipers Ventilated carbon discs Carbon pads
Wheels Magnesium BBS Front : 12.5 in. x 18 Rear : 12.5 in. x 18 Michelin
Safety
Roll cage
Six-point harness system adapted to HANS
