Daniel Ricciardo expecting more engine performance for Melbourne

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Daniel Ricciardo is looking forward to more performance from his TAG-Heuer power unit as the first race of the 2016 season approaches.

Red Bull is running TAG-Heuer-badged Renault engines this year after failing to secure a supply deal from one of the French manufacturer's rivals last year. Ricciardo set the fourth fastest time of the first week of testing and completed a healthy 199 laps, but says there is more to come from the power unit ahead of the opening round of the season in Australia.

"We knew coming into the test that we were not going to be running all the bits on it," he told ESPN. "I think as we've seen in the last few years of pre-season, we want to get on top of the reliability first and not try to be heroes and show all our horsepower in the first test. I think we had some little glitches over the first week, but generally we are on track.

"I do believe there is a bit more power and we've seen that on the data as well. But we are running quite conservative still for reliability reasons, so I think come Melbourne, if we have a clean eight days testing with reliability, we should see a bigger step there. Again, we are not going to start the season with all our eggs in one basket, we will have more than last year but it's not the gamechanger in the first few races."

Last year Renault brought one in-season performance update to the engine at the Brazilian Grand Prix, but it failed to deliver an improvement in lap time. Ricciardo is confident there will be a steady stream of updates this year.

"I am, yeah. It wasn't really the case last year, we had little bits here and there but it wasn't big steps we were hoping for. This year I have a lot more confidence that we will have steps and obvious ones."