Kimi Raikkonen insists that Lotus has to start outscoring its rivals if he is going to build a championship challenge in the second half of 2012.

Raikkonen is fifth in the championship standings heading into the Belgian Grand Prix at Spa on the back of a campaign where he has already taken five podium finishes - although he has yet to take to the top step.

Having shown his speed, Raikkonen will now hope to convert it into victories when the season resumes at Spa and he said it was important to start outscoring the men in front to keep himself in contention.

"We always try to win; some days you get close to it and it's a bit disappointing that we haven't quite made that final step," he said. "We know the reason though; we've not been so strong in qualifying as we have in the race which makes life harder for ourselves on Sundays. Of course we would rather win than come second or third but it's a long season and I think we're improving all the time. If it comes then great, if not we'll keep trying.

"I've been in the business long enough that I don't really worry about things too much. We've been improving our position in the championships - both for myself and for the team - so as long as we keep doing that hopefully the win will come.

"I am now fifth in the championship and obviously aiming at getting more points than the guys in front of me. The smaller the gap to the leaders is the better for me and for the team. Every race from here on is very important. The whole team is pushing 100 per cent and we need to beat our rivals and take more points than they do every time."

Of the drivers on the grid, only Michael Schumacher has won more times at Spa than Raikkonen, and the Finn admitted it was a circuit that he only has good memories of.

"Obviously it would be great to win at Spa for a fifth time," he said. "I haven't won during the first part of the season and the extra points are always good.

"For me there have only been good memories from Spa and it's great to go racing there. You can't get the same kind of a feeling anywhere else. It's great to race with a modern racing car at a proper circuit that has such a great tradition.

"Sometimes there are certain circuits where everything seems to run smoothly and then there are others where you have no luck at all. Of course, we will do our very best to win this race. I have stood in the middle of the podium a few times and I want to be there again."