Mclaren Mercedes MP4-25

[raymondu999]

What I don't get is why didn't McLaren reduce Jenson's downforce level slightly and get a 340k top speed as most others were.

[Morteza]

did I miss something there Hamilton did drive without F-duct in monza ,did he? (even thohgh his race did not last very long ).

He raced without F-duct Marcus.

What I don't get is why didn't McLaren reduce Jenson's downforce level slightly and get a 340k top speed as most others were.

Button was racing with a different front wing at Spa, what was the difference between Spa version and Monza version?

Alonso was doing 339.4 km/h while Button was doing 329.3

[PNSD]

Button in 2007 proved top speed isnt exactly king at Monza.

I remember his RA107 being bottom of the speed trap, yet he raced to a very good 8th place. If you consider the car he drove it was one of his best races that year imo. And those who can remember will also remember the battle with Nico Rosberg which lasted a couple of laps.

At Spa Button had the latest front wing whilst Lewis reverted back to an older spec. I dont know what the performance difference was, but Lewis was a good chuck quicker than Jenson in S2 all weekend.

[ringo]

It's also down to Jenson's preference not what Mclaren sees as optimal.
He probably likes to car to be very planted and predictable. He can only get this at Monza with respectable downforce.
His setup was also to help in qualifying, he suffers from not getting the tyres up to temperature, so his high DF setup was to counter that.

[kalinka]

Maybe this high DF setup was the key to loose the first place, because he had so mutch more DF that his tyres hardly reach their temp ? Also their stiff setup didn't help there probably.

Button after the race :

"Maybe it was the wrong call to pit when we did, but the team felt the new Prime tyres were faster than the Options. But I couldn't find any grip on the new tyres, and lost a little bit of time on them. When I saw Fernando emerge just of me, I was very disappointed."

[raymondu999]

I thought DF generally helped to heat the tyres to their working temps, but not wear them down, no?

[kalinka]

I thought DF generally helped to heat the tyres to their working temps, but not wear them down, no?

But if you slide much less because of the high DF, and you consider Jenson's smooth style , and hard tyres, it's maybe just not enough to heat them up.. Monza actually has a fewest corners to make your theory work. Maybe it's true on a more conventional track, but not in Monza, where you have more independent effects working against it...? Actually I think you're right, but maybe it's a different story in Monza...?

[ringo]

Button always has excuses. His car was more suited to warming the tyres, he could brake later and with more force. He also could go through turns at higher g's.
The thing about the hard tyres after the pits always happens on the outlap, after that, they Hard tyre was faster than the soft.
Both Alonso and Felipe had the same experience on the outlap.

Being the cunning driver that he is, button's intention was to get the car to qualify better than Hamilton's. The only way to do this is to run higher downforce than his teammate. This helps get the temperatures in quicker on the qualy laps.

His car was capable of winning, but by a narrow margin. He fell bellow the threshold of speed required to win with his setup.
The car maybe would have done better with a little less downforce, albeit a more looser behavior. But jenson doesn't want to fight the car.. so what can the team do but make him comfortable.

For singapore now, i think a new floor with more bounded diffuser openings is on the cards. let's see how they fix the hard ride.

[NaZzO]

Changes in the McLaren MP4-25 in Belgium:
http://translate.googleusercontent.com/ ... cu9FjSYYSQ

[Confused_Andy]

You know that was a feature on this very website... Its not updates at spa either.

http://www.f1technical.net/features/15369

[ell66]

You know that was a feature on this very website... Its not updates at spa either.

http://www.f1technical.net/features/15369

noit wasnt, look at it. no mention of the spa updates on this sites link.

[Confused_Andy]

Correct, but the site above my link has just used the imagery from this site and said that they were spa updates even though they are not...

[NaZzO]

Correct, but the site above my link has just used the imagery from this site and said that they were spa updates even though they are not...

Both links are from the same reliable author. He does not confuse easily (pardon the pun)

[747heavy]

I´m not sure if this wing on the left would be legal in 2010, as it shows three elements?



and I´m under the impression that you are only allowed a two element wing in 2010.
I´m wrong?

[deus1066]

I´m not sure if this wing on the left would be legal in 2010, as it shows three elements?



and I´m under the impression that you are only allowed a two element wing in 2010.
I´m wrong?

You're quite right, you're not allowed more than 2 closed sections in the rear wing (except the central exclusion area). The picture shouldn't show daylight flowing through one of the slots, as actually from the front the wing is only 2 parts and ventilates the extra slot gap through slots in the lower part of the wing. See photos of this, and possibly last years, Mclarens at Monaco to see what I mean.