Earlier this yr, the groups agreed to allow blanket-free full wets from the Emilia Romagna GP onwards.
After the Imola occasion was cancelled, the tyres had been used for the primary time by three drivers within the Monaco race and had been then tried by the entire area in FP3 in Canada.
As Pirelli works in direction of the attainable introduction of blanket-free slicks for 2024, the corporate needed to fast-track its new intermediates into race weekend use inside this season.
The Singapore GP was earmarked because the potential start line given manufacturing and transport schedules. No less than eight groups needed to assist the choice.
Nevertheless, regardless of promising suggestions from testing, in a vote taken throughout the Monaco GP weekend, a majority opted to not make the change.
“Often we now have some races with rain, like Suzuka, for instance,” Isola instructed Autosport. “And it was alternative to check them earlier than the tip of the season.
“The issue is that to check them as a further prototype is tough as a result of we should always ship them all over the place on the earth.
“I used to be speaking to the FIA, providing the intermediate for Singapore, after which they got here again to me saying no.
“The groups did not agree. Sadly, we had greater than two groups in opposition to, as a result of we would have liked eight groups in favour.”
Mario Isola, Racing Supervisor, Pirelli Motorsport
Picture by: Mark Sutton / Motorsport Images
Isola insisted that he did not know why groups would reject the brand new intermediates having accepted the total wets.
“That is query. However I haven’t got a solution, actually.”
Just some groups have been concerned within the intermediate testing and Isola acknowledged that others could have needed to check the brand new tyres earlier than committing to utilizing them for race weekends.
Nevertheless, he famous that giving everybody an opportunity to check them will not be sensible.
“Clearly, it is also tough to strive intermediate or wets,” he mentioned. “It by no means occurred earlier than that we had a full check with all of the groups, since you merely can not organise it.”
The rejection got here regardless of the Positive final result of Pirelli’s devoted intermediate testing, with Alpine having performed the newest working at Paul Ricard early final month, previous to the vote.
“Esteban [Ocon] was fairly proud of the brand new intermediate step, the step is nice step,” mentioned Isola. “With out blankets, they had been working nicely, warm-up was good.
“And we examined additionally in different periods with completely different circumstances and so forth. So in all of those periods, they’ve been judged Positive, however typically it’s what it’s.”
Alpine sporting director Alan Permane confirmed that the brand new tyres had carried out nicely within the Ricard check.
“We had been testing intermediates with out blankets and so they had been actually, actually good,” mentioned Permane.
“Pirelli have finished an impressive job. And we had been evaluating them to the usual intermediate that was working with a blanket.”
Williams workforce boss James Vowles means that whereas the groups had been ready to simply accept the blanket-free wets primarily based on knowledge from testing, they had been extra cautious about voting for inters as a result of they needed to see how the brand new wets carried out first.
That solely occurred in Monaco after which extra extensively in Canada.
“On the wets, there was some actually good proof that they had been working correctly, sufficient working in sufficient combined circumstances, though all groups hadn’t run them in testing,” Vowles instructed Autosport.
“Earlier than we go on the inters, earlier than that call level, nobody aside from the groups that had examined had run the acute moist tyres. Monaco was the primary time truly within the race that they had been run. And it wasn’t excellent, it is a low-energy observe in some regard, but it surely wasn’t excellent.
“And the rationale why groups would have voted in a cautious method is let’s get some outcomes on observe with the prevailing product, and ensure it positively would not have any ill-sides that we’ve not concluded from some particular testing. And you’ll get that from what occurred right here [in Montreal].”