Banning the off-throttle blowing of exhaust is a reliability issue for Renault.<\/p>\n
That is the claim of Adrian Newey, whose Red Bull RB7 car is said to benefit most from the aggressive off-throttle exhaust blowing in 2011 thanks to its clever Renault engine mapping.<\/p>\n
McLaren chief Martin Whitmarsh told the BBC on Saturday that he “has to believe” Renault’s reasoning for pushing for the off-throttle ban to be delayed until after Canada.<\/p>\n
The FIA wanted to stop the practice immediately in Spain a week ago, but – based on the feedback of some teams – agreed to delay a ban until the next meeting of the technical working group.<\/p>\n
Newey said in Monaco that Renault’s engines open to full throttle when the driver is not pressing the accelerator “for exhaust valve cooling”.<\/p>\n
He is implying that an off-throttle blowing ban is therefore a reliability issue for the Renault teams.<\/p>\n
“For them (Renault) to change that would be quite a big issue, because the engine’s not proven that it would be reliable if the throttle remained closed in that situation,” said Red Bull car designer Newey.<\/p>\n
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