In contrast to its first eight seasons running under the hybrid powertrain regulations, Red Bull has been consistently strong at high-speed tracks following the return of ground-effects.
At Jeddah (qualifying and race) and Miami (qualifying), the brace of RB18s were the faster cars through the designated speed traps.
But at Monza on Friday, the Red Bull was second bottom, only 1mph ahead of slowest Haas while it trailed straight-line standout Ferrari by 6mph as the home team topped the lot.
Data Autosport has seen reveals Red Bull is faster than Ferrari from the sprint out of the first chicane through Curva Grande, the second chicane, Ascari and out of the final corner previously known as Parabolica.
However, Ferrari is more effective at its battery deployment to produce greater top speeds on the straights.
Red Bull technical director Pierre Wache revealed that the comparatively slow speeds was down to a deliberately higher downforce rear wing configuration.
When asked by Autosport for an explanation, he said: “I think it is not due to the engine, for sure. It is clearly due to the level of drag we run on the car.
“It looks like, relative to the others, higher. As you saw, we didn’t change the rear wings compared to the other tracks.
“The others changed, and then [that impacts] the top speed range.”
Sergio Perez, Red Bull Racing RB18
Photo by: Glenn Dunbar / Motorsport Images
This comes despite Red Bull bringing a low drag rear wing with a trimmed flap for Monza, while Ferrari is fielding a revised beam wing.
Wache added: “We defined the season and divided the season by three rear wings, and we control around these three rear wings.
“Sure, the beam wing is also part of it as other teams are doing. But we develop the car around that, for different reasons: for the efficiency in terms of downforce for sure. But also efficiency in terms of budget.”
Red Bull has previous for this tactic at Monza, with Sebastian Vettel winning the 2013 Italian Grand Prix by deploying a short seventh gear ratio and greater downforce to better accelerate out of the corners to spend less time on the straights in total despite carrying less speed.
As per Wache, Red Bull has ruled out turning down the tune in response to Max Verstappen’s five-place grid penalty, with the reigning champion taking a new internal combustion engine.
According to team boss Christian Horner, this followed advice from supplier Honda.
He said: “We’ve elected…
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