This page contains a Flash digital edition of a book.
LE MANS – 2012 CARS PESCAROLO 03


Henri Pescarolo’s team faces a race against time to prepare its Judd- engined, Aston Martin-tubbed car for Le Mans. The car was due to make its debut at Spa but, according to the team, ‘delayed payment deadlines from our major partner… blocked the delivery of some important elements from the suppliers in England.’ Bodywork comes from the French aeronautic company, REXIAA.


DOME S102.5


Dome’s S102 chassis has been updated to the 2012 LMP1 regulations, complete with fi n and holes in the wheelarches, but under the skin there has been plenty of modifi cation. To meet the downsized engine regulations introduced in 2011, a Judd DB 3.4-litre V8 has been fi tted in place of the 5.5-litre engine previously installed, producing around 520bhp, which at Spa was found to be lacking. A development of the engine saw piston failures, so the team has resorted to a previous spec. After Spa, the decision was taken to replace the wiring loom with that used in the Pescarolo 03, also run by Henri Pescarolo’s team, and to change the wheel bearings from titanium to steel after losing time at each pit stop at Spa. The team also switched from a Zytek gearshift to Megaline late in the programme.


AUDI R18


Audi worked on its 2011-winning car and shaved an estimated 85kg from the base weight, including 30kg from the Honeywell- developed turbocharger, 10kg from the bodywork and went to a carbon case gearbox. ‘Given the fact that we had a single turbocharger, it was not in our interest to make it lightweight because it was already risky with this VVT system,’ said Audi’s head of engine technology, Ulrich Baretzky. Weight has also been saved by using an all-new monocoque, which is both stiffer and lighter than that ued in the 2011 car, which performed so well in inpromptu crash testing by Allan McNish and Mike Rockenfeller. The reason for the extreme diet is that two of the four R18s will run as hybrid Quattros, using a fl ywheel system capable of delivering an extra 200bhp to the front wheels, though drivers question how much is actually delivered. The weight saving measures will also benefi t the two non-hybrid


cars. At Spa, the non-hybrids, carrying two litres of fuel more by regulation, went a lap further than the hybrids, and mileage is tight between the two again at Le Mans. ‘Consumption of the Ultra cars was higher than I expected from the values I saw on the telemetry, but then in the Quattro you have guys like Tom [Kristensen], who is our master in fuel conserving anyway,’ said Audi’s Ralf Juettner. ‘[With the Ultra] you can place ballast much better, so it is purely old fashioned motorsports – c of g and better weight distribution.’


NORMA MP200 (below)


The tiny French concern is back once again with its under-funded, Judd HK-engined LMP2 design, which dates to 2010. The ACO originally held this up as an example of a cost-capped LMP2, but the mass produced ORECA outclasses it on that front. At the Spa 6 Hours, the sole example of the car was heavily damaged, bringing its participation in the 24 Hours into doubt.


16 www.racecar-engineering.com • July 2012


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76  |  Page 77  |  Page 78  |  Page 79  |  Page 80  |  Page 81  |  Page 82  |  Page 83  |  Page 84  |  Page 85  |  Page 86  |  Page 87  |  Page 88  |  Page 89