Kolles urges FIA to act on V10 engines

Kolles has been vocal about his unhappiness at the current equivalency formula since the start of the season, and he reiterated his calls for change in Barcelona after his drivers were outqualified by the Toro Rosso duo of Tonio Liuzzi and Scott Speed.

Tiago Monteiro finished as 18th fastest while Christijan Albers was 19th.

And with the V10 engines used by Toro Rosso expected to give them a clear edge at the Monaco Grand Prix, where torque is vital for a good lap, Kolles has urged the sport's governing body to act before the Monte Carlo race.

"The team worked very hard to improve from yesterday and the drivers did a good job to get the most out of the package, so in that sense I'm reasonably happy," said Kolles.

"On the other hand, I also think we would be in the later qualifying stages by now if everyone was using the same engine formula, and by this, of course, I'm referring to the V10s.

"We lost a lot of time to them in the first sector because of their straight-line speed, so it's obvious the equivalency formula is not working. I hope this issue is resolved before Monaco."

Kolles comments come after Liuzzi complained about the lack of top speed of his car on the Barcelona circuit straight.