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McLaren hope to gain half-a-second in qualifying from blown diffuser ban

With the FIA's clampdown on off-throttle blown diffusers going ahead as planned from the British Grand Prix at Silverstone onwards, McLaren-Mercedes is eyeing an opportunity to turn the tables on Red Bull Racing...
McLaren-Mercedes is confident of being able to upset the balance of power and gain as much as 'half-a-second' in lap time in qualifying on runaway F1 2011 World Championship pace-setters Red Bull Racing once the ban on blown exhausts comes into force from next month's British Grand Prix.

Following a meeting of the FIA's Technical Working Group in London yesterday (Thursday), it was decreed that the clampdown on off-throttle blown diffusers – as outlined in a letter sent out by the sport's governing body to teams over the weekend of the Canadian Grand Prix in Montreal [see separate story – click here] – would be going ahead as planned from Silverstone onwards, despite opposition from a number of entrants, Red Bull and Renault chief amongst them.

The 'extreme' practice of using engine mapping to operate blown diffusers – thereby sending a full blast of exhaust gases into the diffuser when the driver is off the throttle in corners – has been outlawed, the FIA states, to avoid altering 'the aerodynamic characteristics of a car beyond the primary purpose of generating engine torque' and in the interests of conserving 'financial, technical and human resources' in an era of strict belt-tightening. All blown diffusers will be illegal from next season.

The off-throttle blown diffuser is believed to be a key element behind Red Bull's competitiveness in 2011 – particularly in qualifying, with Jenson Button telling Blick that 'they use the exhaust gases into the diffuser non-stop on a qualifying lap, but not in the race'. Moreover, a Pirelli source has told Brazilian newspaper O Estado de S.Paulo that the energy drinks-backed outfit's exhausts 'are too close to the tyres', with a recommended distance on safety grounds of at least 40cm due to the heat generated.

“This is about an interpretation of the rules,” remarked Force India F1 chief operating officer Otmar Szafnauer, according to SPEED.com. “If the interpretation is different to the FIA, the teams can appeal, but on the other hand, the court's ruling will be the interpretation of the federation.”

McLaren team principal Martin Whitmarsh, meanwhile, hopes the change might just enable the Woking-based outfit to finally get on terms with RBR in qualifying this season, with the MP4-26 having proven to be much more of a match for the RB7 in the races, but invariably losing out through conceding too much ground on Saturday afternoons.

“It's quite possible we will close up in qualifying by half-a-second,” the Englishman mused, speaking to Auto Motor und Sport, before adding rather more cautiously to SPEED.com: “I don't think it will create a fundamental change to the picture, but it will hurt some more than others. Depending on how optimistic you are feeling that day, you like to think that it will hurt others more than you.

“It will change according to which team is exploiting these tactics the most. It's been a moving feast. You can hear changes and difference in some teams [in exhaust note] which will not be there when we get to Silverstone.”




Related Pictures

Click on relevant pic to enlarge
12.06.2011- Race, Jenson Button (GBR), McLaren  Mercedes, MP4-26 race winner
11.06.2011- Qualifying, Jenson Button (GBR), McLaren  Mercedes, MP4-26
26.05.2011- Press conference, Martin Whitmarsh (GBR), Chief Executive Officer Mclaren
07.05.2011- Martin Whitmarsh (GBR), Chief Executive Officer Mclaren
Lotus Renault GP, R31, exhaust
Lotus Renault GP, R31, exhaust system
11.06.2011- Qualifying, Sebastian Vettel (GER), Red Bull Racing, RB7
12.06.2011- Race, Jenson Button (GBR), McLaren  Mercedes, MP4-26 celebrates his victory
12.06.2011- Race, Mark Webber (AUS), Red Bull Racing, RB7 leads Jenson Button (GBR), McLaren  Mercedes, MP4-26
16.04.2011- Qualifying, Press conference, Jenson Button (GBR), McLaren  Mercedes, MP4-26 and Sebastian Vettel (GER), Red Bull Racing, RB7
22.05.2011- Race, Sebastian Vettel (GER), Red Bull Racing, RB7 leads Lewis Hamilton (GBR), McLaren  Mercedes, MP4-26
22.05.2011- Race, Sebastian Vettel (GER), Red Bull Racing, RB7 leads Lewis Hamilton (GBR), McLaren  Mercedes, MP4-26
22.05.2011- Race, Sebastian Vettel (GER), Red Bull Racing, RB7 leads Lewis Hamilton (GBR), McLaren  Mercedes, MP4-26
Peter Gethin sat in his BRM at the 1972 British Grand Prix at Brands Hatch
Lotus E22 with Hisense sponsorship
Sebastian Vettel drives the Russian Grand Prix circuit in Sochi - Pic credit: Infiniti
Sebatian Vettel and David Coulthard at the Russian Grand Prix circuit in Sochi - Pic credit: Infiniti
Sebastian Vettel drives the Russian Grand Prix circuit in Sochi for the first time - Pic credit: Infiniti

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pauldalg - Unregistered

June 17, 2011 2:00 PM

Good grief, why can people not put aside their team preferences and be objective? It was WILLIAMS and COSWORTH who wanted clarification of the rules on exhaust blown diffusers, probably before they spent a shed load of money on development to match other teams. There should be a basic rule on here, that if you cannot string together a coherent sentence, then you can't contribute. Dear me "Westy", did you miss a few English classes?

wing chun - Unregistered

June 17, 2011 3:33 PM

I also find it amusing that when vettel is winning its about the car...unless you have just started watching F1 but u shud know its always about the car. And if you followed F1 properly you should know that vettel earned his place in redbull because of his blistering pace on friday setions with BMWSauber. Despite whom you may support,lets stop the silly bashing and accept the guy is talented. enuf with lewis already



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