Link - Analysis: Ferrari focuses on tyre pressures in search for qualifying boost
In the article, McLaren's idea seems to be ridiculous (although very creative), but was scrapped down by FIA......
The Maranello outfit's weaknesses in qualifying were highlighted at last weekend's Spanish Grand Prix, when Sebastian Vettel and Kimi Raikkonen were outqualified by both Mercedes and Red Bull after big struggles in the heat of Saturday afternoon.
The fact that its pace returned on race day – albeit could not be shown because both Vettel and Raikkonen got trapped behind the Red Bulls – confirmed that it is not a fundamental car design nor engine problem that it is facing.
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At the Russian Grand Prix, McLaren asked for clarification from the FIA about the potential to develop certain devices that could help manage pressures.
For example, one of the ideas was to have a double-chambered wheel rim that had a small bleed hole in-between.
The proposal was that the outer chamber would be filled with higher pressure air to ensure the tyres were above the minimum pressure limit, while the inner chamber would have less pressure.
The hole would be small enough not to allow the higher pressure air to escape instantly – but over a short period of time the pressure in the two chambers would equalise, lowering the overall pressure the tyre was being run at.
The FIA made clear, however, that such ideas were a breach of the regulations, and, as is standard practice, its response to McLaren was circulated to all teams.