Toro Rosso to respect V10 restrictions

The Red Bull junior team's boss Franz Tost has said his outfit will have no choice but to accept any action taken by the FIA - who have made it clear that a final decision on the 'equivalency' formula between V10s and V8s may not be made until the season-opening Bahrain Grand Prix.

It comes after continued concerns from rival teams, especially Midland F1, who claim that V8 engines may be at a disadvantage compared to the V10 Cosworths that are being run by Toro Rosso this year.

Tost told autosport.com: "It is the FIA who regulates these things and I respect its decisions. From the figures its states, and from what I can see, our V10 is not in front.

"The V8s are in front by far. I can talk for Cosworth and we are not at an advantage - although it is up to the FIA to regulate. Should it decide that other figures would be appropriate to realise the equivalency formula, then we will respect that."

Tost has also not ruled out the possibility of the FIA actually waiting until after the Bahrain Grand Prix to decide on whether the performance of the V10s needs to be cut back or whether the current rev limit and air intake stipulation are enough.

"It can happen after Bahrain, but currently there is nothing more to add. I just follow what the governing body says."

At the Midland launch earlier this month, team principal Colin Kolles said that there would likely be problems if Toro Rosso outqualified his cars in Bahrain.