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2015 F1

Outline of Renault latest specification V6 pushed back

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Outline of Renault latest specification V6 pushed back

Outline of Renault latest specification V6 pushed back

Renault taken two of the latest specification V6s to this weekend’s United States Grand Prix, for potential use by Red Bull as Toro Rosso declined to make the switch.

Red Bull decided not to introduce the power unit in Austin with Daniel Ricciardo claiming it is “probably not worth taking” any risks, especially as it would have resulted in grid penalties for both Red Bull drivers.

The French engine manufacturer revealed that, in the build-up to the US Grand Prix that they have used 11 in-season development tokens and the upgraded engine would be available for use by Red Bull in Texas.

Renault’s head of trackside operations Remi Taffin told Autosport that, the upgrade was “worth something around two tenths” of a second, but that there were “some good reasons” to hold off on its introduction, especially as it would prompt engine penalties.

“Taking the 10-place penalty versus what we would have gained doesn’t seem to be worth it,” said Taffin.

“Also, when it’s wet the Red Bull-Renault is much better in these kind of conditions, so it’s not worth taking a 10-place penalty.

“If you look at the opposition, some have decided to take some penalties, so all in all we are happy not to have the engine in for this weekend.”

While the late-2015 upgrade is believed to be worth 0.2s, Taffin said the aim for the step from this season to next was “more like 0.5s or a second.

“We know a second is the sort of gap we need to fill in. That’s the target we have got.”

Red Bull team principal Christian Horner also admitted during FP2 in Texas that the new-spec engine will probably only be used at the penultimate race of the season at Interlagos in Brazil as Renault still needs to do more running as they have concerns about reliability.

Taffin also agreed there is still work to be done on the update and thus not introducing it until Brazil will decrease the risk.

“It’s all about mapping and software. It’s really based on the fact that we don’t want to take any more risks and maybe it will be different in two or three weeks.”

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