lundi 8 septembre 2008

2008 FORMULA 1 ING BELGIAN GRAND PRIX : Technical News

McLaren MP4-23 - reduced radiator inlets

The low ambient temperatures at Spa allow the teams to reduce the venting required for cooling, hence improving the aero efficiency of the cars. McLaren have been able to dramatically reduce their radiator inlets by applying a specially profiled bodywork addition in the lower section of the inlet. The reduction in the size of the openings helps reduce drag and turbulence immediately in front of the sidepods, aiding top-end performance on the Belgian circuit's long straights. Adequate airflow management ensures cooling efficiency is still maintained, hence avoiding any potential reliability problems.

McLaren MP4-23 - revised rear aero package

For Spa McLaren have added side slits to the endplates of the car's sidepod winglets (lower inset circle). Similar to a revision introduced by Renault last year, and already adopted on the MP4-23 in Monaco, they are designed to reduce any extra turbulence generated by the larger Monaco-spec winglets - and consequently ensure maximum downforce gains. In addition, the rear wing sports the same configuration adopted in Canada, with the main profile raised in its central section and its extremities bending downwards slightly towards the endplates. This solution generates not only a medium downforce load, but also less drag compared to the previous configuration. This is important at Spa, where the very long straights highlight the car's top-end performance, while at the same time the more twisty sections emphasise the need for good traction.

Ferrari F2008 - side nose winglets

Ferrari have introduced many subtle changes on the F2008 at Spa. One version of its nose cone sports an interesting, if small, addition. Winglets (inset) have been placed on each side of the nose cone just under the suspension's upper wishbone pick-up points. These have the important function of diverting airflow in a way that generates no turbulence close to the crowded section of the car around the front suspension elements. This is pretty important in terms of drag reduction on Spa's long straights. Without the winglets, the front wing angles adopted here would normally lead to airflow impacting directly against the suspension's upper wishbone, generating huge turbulence.

Ferrari F2008 - revised cooling gills

Ferrari seem to have gone in the opposite direction to McLaren at Spa in terms of cooling management, apparently increasing the F2008's capability in this area, despite the relatively low ambient temperatures. The venting gills on the inner side of the chimneys atop the sidepods have been extended. The profile of the gills manages the airflow passing over the sidepods so as to maximise its efficiency in terms of extracting hot air from the radiators. At the same time, this modification increases the pressure of this portion of airflow, making it more useful to the rear wing's lower profile, hence raising the overall efficiency of the rear wing.

vendredi 5 septembre 2008

Massa et Räikkönen lancent les débats

Belgique : Libre 1
Un ciel très nuageux, pas de pluie, des températures de 15° dans l’air et par terre et un vent supérieur à 3 mètres/seconde étaient au rendez-vous pour la première séance d’essais libres du Grand Prix de Belgique.


Pendant le premier quart d’heure, les pilotes bouclaient leur traditionnel tour d’installation. Comme à leur habitude, les Ferrari étaient les dernières à quitter leur garage.

Felipe Massa entamait d’emblée une série de tours chronométrés, imité par les Toro Rosso. Le Brésilien augmentait régulièrement la cadence et se hissait rapidement hors de portée – 1’48.209 – devant Vettel, Sutil et Bourdais.

Lewis Hamilton ne tardait pas à venir prendre ses marques, et améliorait immédiatement les temps de passages de son rival brésilien – mais une légère erreur à la chicane de l’arrêt de bus reléguait le pilote McLaren à 5 dixièmes !

Alors que le pilote britannique réduisait l’écart à 57 millièmes sur Massa, Fernando Alonso réussissait à glisser sa Renault dans le trio de tête suivi des Toro Rosso de Vettel et Bourdais. A la fin de la première demi-heure, Kovalainen se rapprochait au troisième rang, 24 millièmes devant Alonso.

Ce n’est qu’à l’approche de la mi-séance que Kimi Räikkönen venait se mesurer une première fois au toboggan des Ardennes. Le Finlandais s’emparait immédiatement du meilleur temps – 1’48.075 – une performance sur laquelle son équipier Felipe Massa buttait pour 13 millièmes.

Les bolides rouges ne s’arrêtaient pas en si bon chemin, et accélérait un peu plus la cadence - ce qui permettait à Felipe de reprendre l’ascendant – 1’47.
813 – 55 millièmes devant Kimi ! Hamilton, Kovalainen, Alonso, Vettel, Bourdais, Piquet, Heidfeld et Coulthard complétaient le Top 10

Quelques traces d’humidité allaient perturber la suite de la séance, et causer quelques glissades, heureusement sans dommage pour les pilotes et leurs voitures.

Reparti avec un train de pneus tendres et neufs, Alonso hissait sa Renault au 3ème rang – à moins de trois dixièmes des Ferrari – toujours seules sous la barre des 1’48

A l’entame du dernier quart d’heure, Lewis Hamilton repartait à l’assaut, mais un léger écart de trajectoire à la chicane de l’arrêt de bus le voyait échouait à un dixième de Massa. Dans la foulée, Kovalainen échouait à 11 millièmes de Lewis.


Felipe Massa et sa F2008 équipée de gommes tendres abaissaient à deux reprises le temps de référence – 1’47.284 – qui lui permettait de distancer Kimi Räikkönen d’un peu plus de trois dixièmes.

3ème et 4ème – les deux McLaren Mercedes sont reléguées à 6 dixièmes. Alonso – 5ème – devance Webber, Bourdais, Vettel, Glock et Piquet.

PosPilotesEquipesTempsEcartTours
01F. MassaFerrari1:47.284

02K. RäikkönenFerrari1:47.623+ 0.339
03L. HamiltonMcLaren1:47.878+ 0.594
04H. KovalainenMcLaren1:47.932+ 0.648
05F. AlonsoRenault1:48.104+ 0.820
06M. WebberRed Bull1:48.428+ 1.144
07S. BourdaisToro Rosso1:48.557+ 1.273
08S. VettelToro Rosso1:48.958+ 1.674
09T. GlockToyota1:48.997+ 1.713
10N. PiquetRenault1:49.068+ 1.784
11R. KubicaBMW Sauber1:49.139+ 1.855
12N. HeidfeldBMW Sauber1:49.185+ 1.901
13N. RosbergWilliams1:49.611+ 2.327
14J. TrulliToyota1:49.625+ 2.341
15D. CoulthardRed Bull1:49.849+ 2.565
16G. FisichellaForce India1:49.986+ 2.702
17A. SutilForce India1:50.117+ 2.833
18K. NakajimaWilliams1:50.125+ 2.841
19J. ButtonHonda1:50.464+ 3.180
20R. BarrichelloHonda1:50.905+ 3.621



J-P.K
© CAPSIS International

Les pilotes Ferrari à égalité

En tête du Championnat du monde devant les deux pilotes de la Scuderia Ferrari, Lewis Hamilton est clairement le pilote nº1 de l'équipe McLaren.

Chez Ferrari, Felipe Massa devance son équipier Kimi Raikkonen de sept points, mais on ne lui a pas encore accordé le même statut que son adversaire britannique et ça pourrait ne jamais arriver.


"Comme d'habitude chez Ferrari, la priorité est de travailler dans l'intérêt de l'équipe - déclare Stefano Domenicali, le directeur de la Scuderia - Cela signifie que nos deux pilotes sont conscients que l'un d'eux devra aider l'autre dans la phase finale du championnat, si on le lui demande. C'est arrivé l'année dernière, Felipe a aidé Kimi lorsqu'il était devenu évident qu'il n'avait plus aucune chance au championnat."

"Si la situation avait été différente, Kimi aurait fait la même chose pour Felipe.
Cependant, actuellement, il n'y a pas de hiérarchie entre nos deux pilotes, car l'écart au classement du championnat n'est pas assez grand. D'autant plus qu'il y a encore un maximum de 60 points à marquer. Si l'un des deux pilotes devait clairement prendre le dessus sur l'autre, alors nous agirions en conséquence, mais pour l'instant ce n'est pas le cas et ce pourrait ne pas être le cas pendant encore un bon moment. Le championnat 2007 est resté ouvert jusqu'aux dernières courses et ce pourrait encore être le cas cette fois-ci," ajoute Domenicali.

jeudi 4 septembre 2008

FIA Thursday press conference - Belgium

Reproduced with kind permission of the FIA

Drivers: Nick Heidfeld (BMW Sauber), Kazuki Nakajima (Williams), Kimi Raikkonen (Ferrari), Sebastian Vettel (Toro Rosso).

Q: Kazuki, this is your first time here in F1. But you have been looking at it on the simulator?
Kazuki Nakajima: Yeah, not very much but I did some work on the simulator. Obviously it is not exactly the same as a real track but I got some feeling of how to drive here in an F1 car.

Q: What is different when you use a simulator?
KN: Obviously, I could get some feeling of how the speed is on the track or how the car balance will be or a feeling for the braking point. That is the thing. Obviously for Valencia I think it helped us quite a lot.

Q: You had your best qualifying performance ever in Valencia. What made the difference do you think?
KN:
Nothing really but fortunately we had a very good car, much more competitive than the last few races. That helped me a lot and for Nico as well. The weekend was quite good for us. For me, especially, apart from the first lap of the race. We had a good feeling. It just gave me a bit more confidence, especially as we had had a difficult few races, so it was very good to come back to a good position.

Q: What is the situation for next year?
KN:
I have not got any for news for next year but I really hope to stay at Williams. That would be my best choice, I think. I don't think there are many other choices. But I think to stay at Williams is the ideal thing for me.

Q: And there is a possibility of staying at Williams?
KN: I hope so.

Q: Is there a good possibility?
KN: I think so, but we will have to wait for the team's decision.

Q: Sebastian, it was your best ever qualifying performance as well in Valencia?
Sebastian Vettel:
Yeah, it was true.

Q: What made the difference with you?
SV:
We had a very, very good weekend in Valencia. Everything was running perfect, I think. We had a very good preparation day on Friday and obviously a very good qualifying day on Saturday and also a good race. It is difficult to point out what made the difference. In the end we were trying to do our best. I think the car was very competitive there. I like the circuit and I think that was the key to success.

Q: In the press release Giorgio Ascanelli said 'we must be doing something right, but I don't know what.'
SV:
As I say we had a perfect weekend. We have been working very hard to get where we are now and now the job is to stay there. I think it will be difficult enough, but if you see the development we have made during the season the whole team has changed. The whole attitude if different now, everybody is extremely motivated and extremely willing to achieve something. It has not always been like that in the past. We have become much stronger than we were and I think that is the key, that is the reason why. There is no secret or anything funny or anything special. We came to Valencia and we had no new parts, we had no track knowledge like everyone, so it was down to pure work I guess.

Q: Do you think the next two circuits will suit you and the car?
SV:
I think so. Monza is a bit extreme but I think both kinds of circuit, the layout and the characteristics should suit our car. Here we have a lot of fast corners and I think that should be very good for us and Monza obviously there is a lot of straight lines but I think we have an efficient car, so I think we should be in a strong position there as well. But all in all you have to say we have to keep our feet on the ground. In Valencia, as I say, we had the perfect weekend and we were even able to follow a bit the pace of the guys in front and that was very surprising. Obviously, you cannot expect that to happen every race. We have to focus and we have to try to maximise our own potential every time possible. If we can get some points or get close to the top 10 positions, it is very good for us.

Q: Do you remember your race here last year?
SV:
It was quite short. At first I had a technical problem, then a problem with the steering rack. I was going up to Eau Rouge and the car didn't steer like I wanted it to. It was quite a bit funny. We retired, so it was not the best race for me.

Q: You would prefer to wipe that one?
SV:
Exactly.

Q: Kimi, you are the winner here for the last three years.
Kimi Raikkonen:
Yes, it has been a good place. Hopefully it will be this year also.

Q: A lot has been written about your last few races. Do you feel there is a problem of some sort or is it just circumstances?
KR:
Definitely, it hasn't been races that we wanted. There has been a problem but it is not the first time and it is not the end of the life. We have been trying to fix them and hopefully we have found something now and we can get back where we should be. Things go wrong sometimes. You have bad races but hopefully now we can have a stronger weekend and get back.

Q: When you say hopefully you have found something, was that in the test in Monza?
KR:
I mean we tried many things and we were pretty happy with the car but you never know from a test. It can be a good test and then you come to the next place and it is a different circuit with different conditions. It can get back to where it was, so hopefully we found something and we can be stronger but I mean it is too early to say. We had a good feeling from the test but we will see now.

Q: The team have said that they feel the qualifying performance should be better after the Monza test.
KR: Mainly there. In the races, apart from the last race, we have not been too bad speed-wise but if you are stuck behind other cars, then it is pretty much over at that point. If you can qualify at the front, it will help big time and we should be fine. Anyhow, we try to improve on all areas and hopefully that has happened.

Q: You had the engine failure in Valencia. Are you confident that that is not going to happen again?
KR:
Yeah, I think we know what the problem was and it was more or less the same issue with Felipe's engine the race before. Hopefully we fixed it. So far in testing and on the bench we have been okay. It can happen again but we are pretty sure that we have fixed the problem and it should be fine.

Q: Nick, in some ways you've been through a similar sort of patch but then you were fastest in testing in Monza.
Nick Heidfeld:
Yes, I mean it's quite similar to what Kimi said. Testing goes well but that doesn't mean that it will be perfect here. But definitely I was happy with Monza testing. We tried a couple of things which most likely will only work at Monza but anyway, we go there after this race, so it's not looking too bad and we also tried some small things which should help me.

Q: Are you feeling a bit under pressure? Mario Theissen has been quoted as saying he needs points from both drivers now.
NH: Yes, but I put myself under pressure more than anybody else could do from the outside. It's pretty clear; if one car finishes on the podium and I finish ninth, nobody needs to tell me anything.

Q: So what can you do about it? You're obviously working hard in testing, what more can you do?
NH:
Well, obviously it's all about understanding the problems and then changing some things and trying to go quicker. I was in a similar situation a while ago this year and I thought I had put that behind me and then I was a bit surprised to run into a similar sort of problem again in Valencia. I knew roughly where to search and I think I've made steps forward but we will find out in the next couple of races.

Q: Since you had the problem in qualifying, your qualifying seems to have been quite erratic, it's been up and down.
NH:
It has, actually. I think lap time-wise, pace-wise, I was a lot better than earlier this season, so I was pretty happy with that but on the one hand I had some bad luck with traffic but secondly, I made more mistakes than usual but that's obviously something I'm also working on but I don't think that's as difficult to change as the pace problems I had earlier in the season. Although qualifying didn't go perfectly, I was rather happy with the pace I had.

Q: You qualified sixth here and finished fifth last year, is it a circuit on which you would hope to do the same again?
NH:
Well, you always hope for more obviously but if I would finish there, most likely it wouldn't be a bad result but nobody knows what will happen here on Sunday. The weather forecast isn't the best. It could rain which I wouldn't mind because I enjoy driving in wet conditions but you cannot predict and say I would be happy with this or that.

QUESTIONS FROM THE FLOOR

Q: (Heikki Kulta - Turun Sanomat) Kimi, you have a variety of weather here; what would you prefer for this weekend?
KR:
Either it's dry or raining all the time. It's much easier for everybody. When it gets between those two weathers you have more luck involved. It's more if you get it right or wrong when it starts raining and it gets drier, so hopefully it's… for me, anything is good but maybe dry would nice.

Q: (Juha Päätalo - Financial Times Deutschland) Kimi, last year you had similar problems in qualifying but you were able to solve that. How much can the work of last year help you to find a solution because it hasn't yet been that way. Is the car very different from last year on that point?
KR:
No, but we haven't solved the issues yet. We had similar issues last year at some point of the season. We were pretty OK at the beginning of this season and then it seems to have turned a bit worse. Hopefully we will get back to where we were earlier on but we will see now if we have made improvements or not, then we will go from there.

Q: (Mike Doodson) This is a question for all four of you about pit stops. David Coulthard recently said that he thought the racing would be more interesting if there were no pit stops. He thinks that pit stops distort the results of the races. We've also had incidents with fires in Hungary and a mechanic who was hurt in Valencia. I'm interested to know if you drivers would be interested or would like to see the end of pit stops, which, incidentally, came in 15 years ago.
NH:
Well, hopefully we will see more overtaking next year with the new regulations but until we've had a couple of races we don't know. And as we all know, overtaking is so difficult that I think it would be a good idea to keep the pit stops to at least see some (overtaking).
KR: We see now most of the overtaking taking place at the pit stops, so without them, we probably will be running behind each other more, nothing really happening. Sometimes people get hurt in the pit stops unfortunately but that's part of racing, so it hasn't been too bad.
SV: I think when we are about to retire, we are looking for more interesting races as well because we will be in a position to watch the races. Honestly, in the car the races are pretty interesting and you are pretty busy. As Nick said, next year there should be more overtaking, so hopefully that by the time we are retiring the racing is more interesting.
KN: In my opinion it's better to keep the pit stops because at the moment that's the thing which makes the difference between other drivers, so we have a bit of choice for strategy. Sometimes it makes the racing more interesting.

Q: (Thierry Wilmotte - Le Soir) Kimi, everybody knows that team orders are not allowed, but can you imagine that at the end of the season you can decide on your own to help Felipe to fight for the title?
KR:
It can happen. It all depends on how the next races go and where we are at the end of the year but we race as a team. We will see. Hopefully we don't end up in this situation, hopefully I will be in the championship up to the last race. But you never know what happens.

Q: To all of you: what is on your i-Pod?
KN:
Any kind of music but most of it is Japanese pop. Since I came to Europe, I especially tend to listen more to Japanese songs, maybe to remind me of home.
SV: Any kind really, German folk songs are my favourite. Anything really, a bit of everything.
KR: Mostly Finnish music, all sorts. You wouldn't know, so it doesn't matter what I say.
NH: Yeah, similar to the others, a lot of different stuff, not a lot of classic stuff. No German folk music, more in the direction of R&B, hip-hop, not so much techno, more chill-out but various stuff.
SV: Why don't you like folk songs?
NH: Why do you like it, that's more difficult to answer, I think?
SV: I like the lyrics.
NH: I like the smile on the singers' faces, just like yours.

Q: Is Eau Rouge your favourite corner, and if so why?
NH:
Ah, that's pretty easy to answer for me. It's not my favourite corner. In the past it was very exciting but nowadays with V8s and so much grip, it is not a big challenge any more.
KR: Yeah, from a driving point of view, at least, it's not really a corner. It's more straight for us. In the wet it's quite exciting but as Nick said, before it was much more challenging and the cars are better and we don't go so fast, so it's not a big deal any more.
SV: I still think it's a very nice corner and everybody would miss it if it wasn't part of the calendar but it's true, it's not that challenging, at least in dry conditions. I crashed here in wet conditions and it's more challenging definitely.
KN: For me it was good in GP2 but I will probably find it's going to be easier to go flat-out (in F1), so maybe less fun.

Q: If you were not an F1 driver, what would you be doing?
KN:
That's a very difficult question. I have no idea but I think I would probably be doing something related to racing because that's the only thing that I'm interested in, even not as a driver, maybe doing something in racing.
SV: If I wouldn't have made it, I think I would look for the best possible education to get in the highest position to tell the drivers that made it in motorsport how they should do it the right way.
KR: It would probably be something to do with motorsport. It's always been part of my life, so I wouldn't think it would be much different in some other category or motocross or something like that.
NH: Yeah, pretty similar, actually. I enjoy sports a lot and most likely with an engine involved, probably motorbikes would have been interesting, rallying or whatever, just competing, travelling the world and doing sport.

Q: (Mike Doodson) So which is your favourite corner?
NH:
My favourite corner is the Esses at Suzuka which have not been there (on the calendar this year), so I'm looking forward to next year.
KR: I don't really know. There are a lot of nice corners, so it's hard to pick one.
SV: Yeah, I would say there are too many. Probably the one in Montreal when you go to the personal parking, the right hander is quite nice! No, there are so many corners. I enjoy all of the tracks, so I like a lot of corners.
KN: Yeah, I agree with Nick, I think the Esses or the first and second corners at Suzuka would be nice, which I've never done in an F1 car but I'm sure it will be good.

HONDA RACING : SPA-FRANCORCHAMPS : LE DEFI TECHNIQUE

Le tracé de Spa-Francorchamps n’a pas été modifié depuis de nombreuses années, et les écuries de F1 possèdent par conséquent de nombreuses données techniques à son sujet... ce qui n’enlève rien à la difficulté légendaire de ce Grand Prix.

La piste présente de nombreux virages différents entrecoupés de longues lignes droites, ce qui requiert de trouver le bon compromis en matière de réglages aérodynamiques. Les voitures capables de rouler rapidement dans le deuxième secteur (s’étendant entre le cinquième et le quatorzième virage, dans la zone tortueuse du milieu du tracé) bénéficient généralement d’un avantage non négligeable car elles peuvent également adapter leurs réglages de force d’appui pour les longues lignes droites du premier et du troisième secteur. Les voitures rencontrant des problèmes dans le deuxième secteur doivent quant à elles modifier leur charge latérale, ce qui peut affecter leur vitesse en ligne droite.

Pour ce Grand Prix, Bridgestone fournit aux équipes ses pneus moyens et durs, qui devraient éviter tout problème de grain pneumatique. Le caractère rapide de cette piste fait d’elle l’un des circuits les moins exigeants du calendrier en termes de freinage.

Le virage d’Eau Rouge est l’un des plus célèbres de la F1 et il pose beaucoup moins de soucis aux monoplaces depuis l’introduction des moteurs V8 2,4 litres en 2006. Par ailleurs, les pilotes vont devoir veiller à ne pas baisser de régime dans les virages afin de ne pas perdre de précieuses secondes dans la montée vers Les Combes.


Plein régime : 68%
Usure des freins : Basse
Niveau de force d’appui : Moyen – 5/10
Composants pneumatiques : Moyens / Durs
Paramètres pneumatiques : Moyens
Vitesse moyenne : 230 km/h (143 m/h)


Ross Brawn, Directeur de l’équipe

« Nous avons nettement progressé avec la RA108 au cours du break estival, mais nous n’avons malheureusement pas su convertir ce potentiel en résultats positifs lors des qualifications et de la course à Valence. Notre priorité pour le Grand Prix de Belgique consiste à optimiser notre niveau de performances et à nous qualifier en bonne position afin que Jenson et Rubens puissent donner le meilleur d’eux-mêmes lors du Grand Prix. Après les essais de la semaine dernière à Monza, nous cherchons maintenant à améliorer notre système de freinage pour résoudre les problèmes rencontrés par Rubens à Valence, tout en améliorant du mieux possible notre dispositif aérodynamique pour les niveaux moyens de force d’appui exigés à Spa.

Spa est l’un des plus grands circuits de l’histoire de la F1. C’est également l’un de mes favoris. Son tracé comporte certains des virages les plus intéressants, rapides et passionnants du calendrier, c’est pourquoi les pilotes l’apprécient tout particulièrement, tout comme les ingénieurs, qui peuvent nous permettre de réaliser des temps au tour incroyables à condition de bien préparer la voiture. Voir les voitures passer la section d’Eau Rouge à pleine vitesse, en prenant des risques incroyables, offre toujours des sensations fantastiques à tous les fans de F1. La météo joue souvent un rôle déterminant à Spa. Si la pluie est de la partie, nous saurons saisir cette belle opportunité. Cette saison, nous avons déjà vu que notre voiture était capable de faire mieux par temps pluvieux que par temps sec, c’est pourquoi nous allons suivre avec attention d’éventuelles conditions météo humides pour le week-end de course. »

mardi 2 septembre 2008

Renault explique comment déjouer les pièges de Spa

pa-Francorchamps : Dossier technique


Spa-Francorchamps est sans aucun doute le circuit de F1 le plus complet du calendrier actuel. Il combine des vitesses de pointe de 320 km/h avec des épingles que les pilotes abordent à 70 km/h, plusieurs courbes en sixième et bien entendu l'unique Eau Rouge. A cela s'ajoute le temps plus qu'imprévisible des Ardennes qui fait que parfois le circuit peut être détrempé dans une de ses parties et tout à fait sec dans les autres...

Châssis

Le circuit propose un nombre important de virages " type aéro " (seulement 6 des 19 virages du circuit sont pris à des vitesses inférieures à 150 km/h) et cela devraient pousser généralement les équipes à utiliser des appuis aérodynamiques relativement élevés afin de maximiser le grip dans les courbes, comme c'est le cas à Silverstone par exemple. Cependant, Spa a d'autres exigences : deux longues lignes droites à pleine charge s'avèrent être des opportunités de dépassements réelles. Cela signifie qu'une fois encore, la vitesse de pointe est un facteur critique et le niveau d'appuis doit être déterminé en fonction. En conséquence, les équipes optent généralement pour une configuration aérodynamique avec un niveau d'appuis moyen afin de privilégier la vitesse de pointe et atteindre près de 320 km/h. L'efficacité aérodynamique (appuis maximum pour une traînée minimum) sera la clé du succès une fois encore sur ce circuit.

Suspensions

En termes de suspensions, on opte à Spa pour un compromis relativement dur afin de garantir un bon niveau de performance aérodynamique dans les virages rapides et un changement de direction rapide dans les chicanes. Cependant, une bonne motricité sera également prépondérante en sortie de la dernière chicane et à l'épingle de La Source.

Pneumatiques

Avec Barcelone, Spa est le circuit le plus exigeant de la saison en ce qui concerne les pneumatiques et ce n'est donc pas une surprise si Bridgestone a opté pour les deux mélanges les plus durs de sa gamme 2008 pour cette épreuve du championnat.

Hauteur de caisse

Les hauteurs de caisse sont limitées par les forces subies au moment de la compression de l'Eau Rouge. Depuis le pied de la colline jusqu'à son sommet, la hauteur de caisse de la voiture peut varier de près de 25mm et si la voiture talonne trop, le pilote risque alors de perdre le contrôle. Avec les moteurs V8 et le règlement aérodynamique actuel, l'Eau Rouge s'attaque quasiment à fond, à près de 300km/h. Les pilotes perdront sans doute 10km/h dans cette section du circuit mais l'essentiel sera de garder autant de vitesse que possible pour pouvoir maintenir sa position dans la longue ligne droite qui précède les Combes.

Freins

C'est peut être en ce qui concerne les freins seulement, que le circuit de Spa ne se montre pas particulièrement exigeant. Le tracé belge compte trois freinages très importants, avant les virages 1, 5 et 18. Mais cela reste un des circuits les plus faciles pour le système de freinage compte tenu du nombre important de virages à hautes vitesses qu'il propose.

Moteur

Avec Monza, Spa est le circuit le plus exigeant pour les V8. Le cycle d'exploitation est donc particulièrement sévère avec 72% du tour à pleine charge (seul Monza est plus élevé avec 76% du tour à pleine puissance). De plus, le circuit belge comporte deux longues périodes à pleine charge de plus de 20 secondes, la plus exigeante étant celle de La Source jusqu'au Combes, qui comporte également L'Eau Rouge, soit près de 23 secondes à pleine charge. Cela expose le moteur et ses éléments accessoires à des forces G négatives et positives extrêmes au moment de la compression et de la montée. Il s'agit d'un facteur à prendre en considération dans le système d'huile afin de garantir l'alimentation du moteur.

Spa est aussi le tour le plus long du calendrier et ce circuit a une pénalité liée à la charge d'essence embarquée très élevée. Dans le format de qualifications actuel, cela signifie qu'un moteur ayant une consommation réduite s'avèrera être un avantage certain !

Source: Renault

lundi 1 septembre 2008

Richard Cregan quittera son poste de directeur d’équipe Toyota en Novembre


Après 24 ans de bons et loyaux service, Richard Cregan a décidé de mettre un terme à son implication dans la destinée sportive de Toyota Motorsport. Le Britannique de 48 ans avait intégré les rangs du géant Nippon de l’automobile en qualité de mécanicien dans l’équipe Rallye et avait grimpé tous les échelons pour arriver à celui de directeur des opérations de l’écurie de Formule 1 sur le terrain.

Aucune information relative à sa nouvelle carrière n’a filtré pour le moment mais les routes de Toyota et de Cregan devraient se séparer. Richard a-t-il accepté une promotion pour tenir les rênes d’une autre écurie de Formule 1 ? Réponse dans les jours à venir. Plusieurs directeurs sont actuellement sur la sellette, donc Christian Horner chez Red Bull Racing après les résultats vierges des 4 derniers Grand-Prix, ainsi que Colin Kolles dont la mésentente avec Mike Gascoyne pourrait coûter sa place à l’un des deux pivots de Force India. « Nous sommes tristes de perdre un aussi bon élément que Richard mais nous comprenons les raisons de son départ et nous lui souhaitons bonne chance pour son nouveau challenge » a sobrement expliqué le Président de l’écurie, Tadashi Yamashina.

Richard Cregan sera remplacé par Hens Marquadt, qui fait partie de l’organigramme Toyota depuis 2000 quand il occupait un poste dans le département Ingénierie Moteur. Marquadt a joué un rôle majeur dans le développement des monoplaces de Cologne et était supervisait l’équipe responsable des moteurs en essais et en course et était également en charge du partenariat Toyota/Williams.