Renault looks set to become a second formula one team to take the F-duct system off its car for the forthcoming Italian grand prix.

Prior to this weekend’s event in Belgium, it emerged that the technology’s pioneers McLaren were considering removing the F-duct for Monza.

On the face of it, the long straights of the Autodromo Nazionale seem perfect for the straightline speed-boosting device.

But in fact, the ultra-low downforce nature of the circuit means a lighter, sleeker and more efficient rear wing and engine cover might prove the better option.

Renault finally brought its F-duct to the R30 for this weekend’s Spa-Francorchamps event, where Robert Kubica was a standout performer.

He said the F-duct worked “very well” throughout the weekend.

But after finishing second on Sunday, he said: “Monza will be quite a tricky race.  It is a completely different downforce level track and I most probably will not have the F-duct there.”

Interestingly, the Pole also said the F-duct will probably not be fitted to the car for the subsequent Singapore street race — perhaps because the layout does not feature enough straights.

“Singapore should be a good one for us,” said Kubica.  “It is good track for us but most probably we won’t have the F-duct there unfortunately.”

Meanwhile, McLaren is not confirming whether its F-duct will definitely be removed from the MP4-25 for Monza.

“I don’t see any merit in us declaring to our competitors what we are going to do before we get there,” said team boss Martin Whitmarsh.

Red Bull’s already-dominant RB6 will feature an F-duct concept for the first time this year during Friday practice in Turkey.

Back-to-back race winner Mark Webber confirmed the news during Thursday’s FIA press conference at Istanbul Park.

Team boss Christian Horner had already announced recently that the team would begin experimenting with the concept in Turkey.

“We are doing the research and for sure at the next couple of races we will have a look at it, but we will only introduce it when it earns a place on the car,” he said after Monaco.

Also using similar rear downforce-stalling solutions in Turkey will be pioneers McLaren, as well as Force India, Ferrari, Sauber, Williams and Mercedes.

(GMM)