Formula 1 teams will sandbag in 2017 winter testing, says Pirelli

Some Formula 1 teams will try to hide their true performance and sandbag during pre-season testing, reckons Pirelli motorsport chief Paul Hembery

Formula 1 teams will sandbag in 2017 winter testing, says Pirelli

The major regulation changes - which bring more aggressive-looking cars with wider front and rear wings as part of revised aerodynamic regulations - could shake up the pecking order, but Hembery doubts the Barcelona running will reveal true pace.

"We really won't know in Barcelona testing where the teams are as that's a period where they won't want to show their hand," said Hembery at Autosport International.

"There will be a lot of people trying to hide their true performance level or maybe wondering what they need to do because they can't even get close to some of the teams who are maybe sandbagging."

He doubts the season-opening Australian Grand Prix will show true form "as it throws up some strange results".

"It'll be more when we get to China and Bahrain before we see the true performance of the cars," Hembery said.

The 2017 tyres will have very low degradation, with Hembery expecting the rubber to have 25% more grip and there to be "fewer tyre changes" during races.

Pirelli completed a series of tests last year with modified 2015 mule cars but they did not generate as much downforce as is expected from the '17 machines, leaving Hembery concerned.

"The problem we have got is that we have been testing with cars that are five seconds slower than what we're actually going to see in Barcelona," he said.

"From a compounding aspect, it is a bit of a challenge for us because it's a very small window we're working with.

"If the numbers aren't what we have been told they are going to be, then we might have been a bit too conservative."

Hembery said Pirelli plans to conduct wet tyre testing over the next two months and is negotiating with Mercedes, Red Bull and Ferrari to be able to use one of their mule cars to do so.

"We're working on ongoing development [of wet tyres] during the season, which is something we're allowed to do this season as before we weren't allowed to test," he said.

"In the last three years, I think we had three days of testing.

"Now we have up to 25 car days in a season, so we have a programme to change the wet tyres during the season.

"We want to improve the warm-up characteristics.

"We're going to have standing [re]starts, so the tyres are going to be cold.

"Like we do in GP2, where you don't have blankets, we have to try and get a product which warms up a lot quicker.

"Those tests will be in February and March.

"We're trying to get one of the hybrid cars which we used in the last months of last year and trying to convince one of the teams to get it out of the museum and allow us to do a bit more work."

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