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9 Jun 2010, 23:30 (Ref:2707889) | #451 | |||
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10 Jun 2010, 07:47 (Ref:2708027) | #452 | |
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http://www.mulsannescorner.com/RCELeMans2010.html has an update on the 2011 regulations. The sharkfin is really coming. Compared to the current regulations diesel gets a relatively smaller fuel tank: 13% smaller than petrol (65 vs 75 liter) instead of 10% smaller (81 vs 90 liter).
A lot of cost control in LMP2: homologated gearbox and diff, price cap for chassis and engine, only one bodywork configuration, ... On Radio Le Mans George Howard Chappell of Aston Martin said that the regulations explicitely state that the engine power will be measured and balanced. I don't see this mentioned on Mike's website. |
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10 Jun 2010, 08:57 (Ref:2708075) | #453 | |
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AUTOSPORT says closed prototypes could disappear from the scene because of the regularies concerning the air-conditioning for 2011:
http://www.racer.com/new-le-mans-rul...rticle/152328/ "LMP1 and LMP2 coupes are afforded larger diameter air restrictors than their open top counterparts because they are forced to run air conditioning. This reflects the fact that an air-con system saps engine power." (and this is planned to be abolished by ACO). I think this is Dr. Ulrich´s lobbying, as a tit for tat against Peugeot and to create an advantage for Audi. I am disappointed the ACO plays along. Admittedly, Peugeot has run on equal terms in the LMS, but the real problem is that a closed LMP needs much more work than an open one-additional weight because of the doors, windscreen cleaning, driver exchange and of course the cooling issue. I think it would be fair to adjust these disadvantages with slightly increased power. Otherwise there would be no incentive for the constructors to build them. So the closed LMP should be conveyed, not only because many spectators like them but also in safety terms: Alboreto died in an open car and what happened if Dumbreck would have sat in an open one? |
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10 Jun 2010, 09:37 (Ref:2708093) | #454 | |||
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Just compare the lap times of Audi and Peugeot last night. Both have similar top speed on the straights, but the Peugeot is so much quicker in the corners. So for the same drag, a coupe can run with more downforce than an open car. You list driver changes as a disadvantages for coupes. There is no longer a handicap for coupes since ACO introduced the one air gun rule. In fact, you could argue that that rule was introduced thanks to lobbying by Peugeot |
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10 Jun 2010, 10:38 (Ref:2708126) | #455 | |
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A bit of news about Le Mans 2011, unrelated to the LMP rule changes:
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10 Jun 2010, 10:43 (Ref:2708131) | #456 | ||
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I like it!
Do you have any details on the Hybrid rules? Any changes? |
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10 Jun 2010, 10:45 (Ref:2708135) | #457 | ||
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The official press release has all the details: http://www.lemans.org/en/news/2011-L...TIONS_628.html
The ACO has seen the light: there is a one year transition period. Quote:
Last edited by gwyllion; 10 Jun 2010 at 10:52. |
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10 Jun 2010, 10:48 (Ref:2708139) | #458 | ||
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Thanks!
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10 Jun 2010, 12:10 (Ref:2708186) | #459 | |
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Analysis of the announcement: http://www.endurance-info.com/versio...ance-4614.html
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10 Jun 2010, 12:18 (Ref:2708195) | #460 | ||
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Yay, so this is not the last year of the screaming V12s!
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10 Jun 2010, 12:26 (Ref:2708203) | #461 | ||
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The press release has this vague sentence:
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10 Jun 2010, 12:30 (Ref:2708208) | #462 | ||||
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10 Jun 2010, 12:35 (Ref:2708215) | #463 | |||
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Okay, http://www.endurance-info.com/versio...ance-4614.html suggests something different:
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10 Jun 2010, 12:39 (Ref:2708220) | #464 | ||
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What I understand from that one is that the 2011 P1s are the ones with power and engine capacity reduced, since we know that 3.4/2 l engines will be mandated for the new breed of cars.
But anyway, it's a statement from the French, so there's room for a lot of interpretation. |
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10 Jun 2010, 12:40 (Ref:2708225) | #465 | ||
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It will be a mess to match petrol, petrol turbo and diesel engines of 2010 with the petrol, petrol turbo and diesel engines with or without hybrid of 2011. |
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10 Jun 2010, 12:42 (Ref:2708227) | #466 | ||
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Maybe they're currently thinking about a certain restrictor for the new P1 cars and, considering this issue, might give larger restrictor trumpets to the new P1s for more power only for 2011.
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10 Jun 2010, 13:36 (Ref:2708262) | #467 | |
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By eliminating GT1 (which I support) they also might have solved one problem... especially the new P2s battling with GT cars on the long straights.
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10 Jun 2010, 13:37 (Ref:2708263) | #468 | ||
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10 Jun 2010, 13:38 (Ref:2708265) | #469 | ||
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One of the trends for better fuel economy in road cars is to make bigger engines rev slower so they work in their optimal efficiency range and make more usable torque instead of revving ever higher to get to power figures that only look good on paper. I say tune the Aston V12 (and Judds) to make max power around 6000rpm with optimally tuned direct injection and you will have an engine that will make almost as much sense environmentally as a diesel... and way more than a 3.4 V8 revving past 10000rpm to make the same 500 horses and laughable torque.
A good way to force the atmo manufacturers this way would be to restrict fuel flow and overall fuel consumption so revving higher would become counter-productive. When Porsche or Ferrari design a new engine for more power, they don't downsize it! They make it bigger to put some torque on the table and then tune it for good fuel consumption and emissions within everyday rev range... |
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10 Jun 2010, 13:38 (Ref:2708266) | #470 | |
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10 Jun 2010, 14:03 (Ref:2708283) | #471 | |||||
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For instance, Porsche is adding direct injection and variable geometry turbos in their 911 series. And there are rumors that the entry level Cayman/Boxster will get the 4 cilinder turbo FSI from Audi/VW. |
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10 Jun 2010, 14:12 (Ref:2708285) | #472 | |
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Although it says LMP2s will be able to use GT2 spec motors, so I'd expect them to be a bit quicker than the FLM cars are now.
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10 Jun 2010, 14:17 (Ref:2708291) | #473 | |
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10 Jun 2010, 14:25 (Ref:2708294) | #474 | ||
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10 Jun 2010, 14:28 (Ref:2708296) | #475 | ||
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It has been suggested by Mulsanne Mike, that the LMP2 cars will have engines "based" on GT2 powerplants, but with substantial work on the inside. I think you'll find they should have more power.
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