[JohnMatrix]

Ciekawy artykuł z włoskiej prasy o możliwym wykorzystaniu dmuchanego dyfuzora przez RB16.

Italian press are reporting Honda and Red Bull could have found a way to revive an old Newey trick. Could explain the many RB spins as this is quite sensitive to set-up. Also the flames from the exhaust and the bangs under braking could be part of the explanation. What are your thoughts?

Translation:

The Milton Keynes team drew attention on the last day of testing in Barcelona to the sound of the Honda 6-cylinder that continued to mumble at turn 10, as if the gas was always slightly open even on release. What is Newey trying with Japanese motorists?

Anyone with an ear to the ground heard it right away. You didn't need to be an F1 expert to understand that the sound of the Honda power unit mounted on the Red Bull RB16 was definitely different from all the others at turn 10 at the Barcelona circuit.

So we went to the Tornantino to see what a professional GT driver and a former F1 technical director had told us. Adrian Newey in concert with Honda motorists must have invented another one of his own.

While all the other single-seaters after finishing the braking of the opposite straight that leads to Curve 10 with the 6-cylinder engine in complete release, the Red Bull with Max Verstappen at the wheel, managed to turn in the T3 going perfectly in string, but emitting a sound of an engine mumbling, as if the throttles of one or two cylinders remained open and the unit continued to deliver torque in the curve at lower speed of the Catalan circuit.

And the mind immediately went to remember the blowing exhausts that had made Sebastian Vettel's Red Bull almost unbeatable in 2011 and 2012, drawing about a second's performance from the terminals blowing at the bottom, increasing the load in the rear diffuser with the hot gases.

But at the time the engine was an 8-cylinder aspirated 2.4-litre engine and had a considerable gas flow, so much so that with a proper calibration of the exhaust valve lift it was possible to produce a Blowing Effect with the Renault engine. Basically the exhaust valve remained always open for a minimum quantity, such as to allow in some cylinders the combustion of air + gasoline and blow gas in the exhaust.

Now the situation is decidedly different because the adoption of the turbo takes a lot of energy away from the gases and the unique exhaust from the beginning of the hybrid era has been moved upwards, away from the bottom to avoid that it could feed the diffuser.

So, what's the Honda been experimenting with? In the past Ferrari and Renault were challenged to open the wastegate valve of the turbo with specific strategies to blow at low speeds the two small additional exhausts (adopted in 2016 to improve noise), so as to improve efficiency under the main profile of the rear wing and helping the extraction of the flow from the central extractor.

The effect, obviously, is not comparable with what was produced by the aspirated 8-cylinder, but in F1 there is nothing that cannot give a performance advantage. The blowing, in fact, could be generated by the thrust of the compressor that in the release phase of the 6-cylinder was activated by the MGU-H, the electric motor that recovers the energy of the turbo.

In essence there would have been an extra compression of air in the combustion chamber that would have been "shot" into the exhaust without the fuel injection to generate the burst. Combustion without fuel.

The turbine, therefore, was as if it was pre-charged, and the extra blown air (i.e. no residual combustion gas) was released from the wastegate that remained open, increasing a more energetic flow to the rear wing. There was an aerodynamic advantage in slow corners and every time the throttle was closed.

And a different gas flow rate was determined in the two exhausts to exploit the blowing with more and more complex and effective strategies. But in the case of the Red Bull RB16, there seemed to be a burst. What did Newey invent this time? The RB16 is a laboratory of interesting solutions and Honda wanted to #!$%@? in the innovation...

Translated with www.DeepL.com/Translator (free version)

#f1

[snieznykoczkodan]

@JohnMatrix: zajebiście, dawajcie już to Melbourne.
Marzę o tym, aby zobaczyć minę Bambo, który orientuje się, że już nie ma przewagi sekundy na okrążeniu i czeka go ostry #!$%@? od Maxa w tym sezonie.