The ACO has released some new technical regulations for LMP1/2. The most interesting of them is air conditioning has to be put in LMPs to keep the temperature around the driver less than 30 degrees celsius. I'll post them all at once later.
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The ACO has released some new technical regulations for LMP1/2. The most interesting of them is air conditioning has to be put in LMPs to keep the temperature around the driver less than 30 degrees celsius. I'll post them all at once later.
Last edited by Zytek_Fan; 12-04-2005 at 10:11 PM.
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They should do that for GT1 and GT2 too, I saw the Panoz drivers on TV back in June and they almost exploded.Originally Posted by Zytek_Fan
Hmmm......it was only Panoz anyway.
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The air conditioner is mandatory for closed cars. There are new rules for all Le Mans entrants, not the LMP cars specifically. The minimum weight is also up 25 kg for all cars.
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Amazingly, NASCAR have been running aircon for a while.....I guess its not surprising at all....
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From http://www.mulsannescorner.com/news.html (dec 2005 news) a great Le Mans background/technical site
14.1.9 – Temperature inside the cockpit (closed car) :
The ambient temperature around the driver must not be higher than 30°C (86°F) whatever the temperature on the outside when the car is in motion. After a stop, the temperature must go back down to this value in 5 minutes maximum. An efficient air conditioning system comprising a compressor, a condenser, a pressure reducer and an evaporator is compulsory for the closed cars. It must be described on the homologation form and approved by the ACO.
Subsequently the ACO has increased the all-up weight for LMP1/2 by 25 kgs making them 925 and 775 respectively. Presumably this is to take into account the weight increases caused by the fitment of an air conditioning (AC) system. This weight increase is across the board for closed and open-top cars (even though it is a regulation, understandably, for closed top only) in order to maintain parity. To further that, the ACO is allowing a engine restrictor diameter increase for closed top cars (taking into account power loss suffered from running said mandated AC system):
Normally aspirated and turbo charged gasoline engines:
For closed cars equipped with an air conditioning system, the following restrictors diameter must be increased by :
- 0.5 mm for 1 restrictor ; ;
- 0.3 mm for 2 restrictors ;
Turbo charged diesel powered engines:
For closed cars equipped with an air conditioning system, the following restrictors diameter must be increased by :
- 0.6 mm for 1 restrictor ; ;
- 0.4 mm for 2 restrictors ;
Note the .1 mm difference between the restrictor increase allotment gasoline to diesel? Further case to run a diesel? Figuring the AC's horsepower impact will be no different (or shouldn't be I would think) whether the engine is gas or diesel powered, I find that rule just slightly odd if ultimately inconsequential. Though more power is more power...
Finally the regulations are more specific regarding wear rates of the 20 mm underbody skid:
3.5.6 - Skid block :
a/ It must :
a.3 - have a minimum uniform thickness of 20 mm. A maximum wear of 5 mm will be permitted at the end of the practices and at the beginning of the race. The skid block will not be checked at the end of the race.
Previously the regulations stated nothing in regards to how much (if any) wear was allowable. It is good to see that the ACO won't go the route of the FIA in regards to skid wear and removal of race results (recall the Spa-Schumacher debacle circa 1996 or thereaouts?) in that they won't be checking them post race.
And finally, much less significant though worth a mention:
5.5 - Exhaust system :
5.5.1 - Noise level : see sporting regulations.
Dynamic sound readings will be taken during the 2006 events. The method of measurement and the results will be given to the competitors for information. As from as 01/01/2007 the sound emitted from each car will must not exceed 113 dbA during the qualifying practices and the race. The measurement will be made at 15 meters from the edge of the track.
DAMN, DAMN, DAMN. Guess we'll not hear the Spyker again then
The full regs are at http://www.lemans.org/24heuresdumans...ements_gb.html
Last edited by Matra et Alpine; 12-05-2005 at 09:55 AM.
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Thank you. The regs Mike put up won't load.
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I guess no one will run a Judd GV4 at Le Mans next year
And finally, much less significant though worth a mention:
5.5 - Exhaust system :
5.5.1 - Noise level : see sporting regulations.
Dynamic sound readings will be taken during the 2006 events. The method of measurement and the results will be given to the competitors for information. As from as 01/01/2007 the sound emitted from each car will must not exceed 113 dbA during the qualifying practices and the race. The measurement will be made at 15 meters from the edge of the track.
DAMN, DAMN, DAMN. Guess we'll not hear the Spyker again then
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Panoz was the only front engined of the class and it ended up that a lot of the engine heat was funneled back through the cockpit. As such it was a very difficult car to drive for extended periods.They should do that for GT1 and GT2 too, I saw the Panoz drivers on TV back in June and they almost exploded.
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The Saleen S7R drivers have a big problem at races where it's hot because the power steering fails on the car a lotThey should do that for GT1 and GT2 too, I saw the Panoz drivers on TV back in June and they almost exploded.
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Why are they just now requiring AC to be fitted to cars? Was there some exhaustion related incident? I used to wonder how these racers could bare the heat. The open cockpit cars don't get that hot but with the sun beating down and the full race suits, I can't imagine they're comfortable.
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You should have seen some of the drivers get out of closed cars at Le Mans this year, they were drenched with sweat
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