Lewis Hamilton says he is ready to restart his bid for a second F1 title following the summer shutdown.

Hamilton lost his championship lead to Mark Webber in the Hungarian Grand Prix, while McLaren has also slipped behind Red Bull in the race for the constructors' championship.

Following the summer shutdown, McLaren has worked hard on improving its car ahead of this weekend's Belgian Grand Prix and Hamilton admitted that the break had given the team time to reflect on where it needs to improve.

"Although it's been great for the whole team to have had the factory shutdown and a well-deserved holiday, I think we're all really looking forward to getting back into the title fight," he said. "The break gave us some valuable thinking time to consider how to improve our car for the remainder of the season - and we head into these two races not only optimistic of some better results, but also of stronger pace for the rest of the year."

Hamilton added that the team was confident that it wouldn't suffer a repeat of the problems it encountered at the Hungaroring when racing resumes.

"For this year, too, I head to Spa off the back of a disappointing non-finish in Hungary," he said. "We've investigated the causes, and think we've identified the reason and are confident that it shouldn't happen again.

"Personally, I think Spa is one of the 'great' Formula 1 tracks, and one I'd really love to win. I'll be going flat-out to try and get us back into the hunt again in Belgium, and it would be fantastic if we could take home another win at the end of the weekend."