Red Bull pair Sebastian Vettel and Mark Webber said there was room for improvement after a below-par start to the Hungarian Grand Prix weekend.
Vettel was quickest of the pair having posted a time that was good enough for eighth fastest on the combined lap charts, albeit nearly a second down on the benchmark lap set by Lewis Hamilton.
The defending champion admitted there was work to do to improve on Saturday and said the wet weather than had hit the second session had also hit the team's programme.
“There's still a lot of room for improvement and things that we need to do a bit better for the weekend – then we can see where we are,” he said. “We got a decent run on the primes which was important and we learned things from that, but it looks tight.
“Unfortunately the weather caught us out, same as everyone, but we will see what we get tomorrow.”
Team-mate Mark Webber was 14th on the times and the Australian said he wasn't happy with the way the day had panned out.
However, Webber was quick to point out that the team hadn't been affected by changes to the engine map on the RB8 forced on the team by the FIA since Hockenheim.
“We got some running in the wet and the dry, but we've got work to do,” he said. “I'm not super happy with that today, but it's good that it's only Friday.
“We seem to be going okay in some places, but losing time in others – so we'll go through it tonight. I need to work on the balance. There's no change from the engine mapping amend.”