Daniel Ricciardo is backing Red Bull to challenge for a Formula One podium at next weekend's British Grand Prix after a disastrous race in Austria.
The Australian finished eighth in his team's home event on Sunday, his worst result of the season, while team-mate Sebastian Vettel was forced to retire with mechanical issues.
Red Bull team boss Christian Horner slammed power-unit suppliers Renault for their ''unacceptable'' performance and reliability.
Ricciardo said he had expected to be quicker in Spielberg and was optimistic of being in the top five or even on the podium.
''But we simply didn't have the pace,'' the 24-year-old told Red Bull's website ahead of the July 6 British GP.
''Basically [it was down to] the percentage of corners to straights. This year, as everyone knows, we're losing time on the straights but recovering it in the corners and there are not enough corners for the amount of straights at the Red Bull Ring.
''Another factor was that our competitors seem to have found a bit more this week and we weren't getting as much back on them in the corners as we have been previously.''
Ricciardo said Silverstone - which is about a 20-minute drive from his team's Milton Keynes base - ''should be a circuit that suits us a little bit more''.
''We've got to learn a few things about our performance [in Austria] but, once we do that, I think we'll be fighting in the top five and trying to get on the podium,'' he added.
The Perth-born driver remains third on the championship standings, 82 points behind leader Nico Rosberg and 53 off the German's Mercedes team-mate Lewis Hamilton in second.
Ferrari's Fernando Alonso trails Ricciardo by four points, with Vettel a further 19 points in arrears.
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