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Force India remove blown diffuser after Hungary test

Force India has decided against running its new blown diffuser in qualifying and the race in Hungary.

The Silverstone based team tested the concept in Friday practice on Adrian Sutil’s car, which was faster in both sessions than the non-blown diffuser sister car shared by Paul di Resta and Tonio Liuzzi.

“We didn’t have any real problems with it,” said Sutil, “also the temperatures look under control so we can be quite confident.”

But the team’s chief operating officer Otmar Szafnauer said late on Friday that the diffuser will almost certainly not re-appear on the car this weekend.

“We are just not quite sure,” Sutil is quoted by Auto Motor und Sport.

He said the biggest concern is the huge temperatures that must be withstood by the carbon suspension, while McLaren and Mercedes are believed to have recently struggled with aerodynamic problems caused by the deformation of the diffuser.

Sutil explained: “In practice you are doing maybe 10 or 15 laps at a time, but in the race the parts have to survive for 70.”

But he remains positive about the development for the future, particularly with Force India having fallen off the pace at recent races.

“You do notice the difference (of the blown diffuser), especially with the different engine mappings,” said Sutil.