Troy Corser admits he is a 'little frustrated' at being unable to use the full potential of his BMW's engine, but maintains the perfect chassis set-up will come eventually.

Corser and BMW returned to the track alongside its rivals in Portugal, with the Australian featuring in and around the top ten throughout the weekend, even if he would eventually be forced to settle for the 13th fastest time overall.

Although it placed BMW as the sixth fastest manufacturer - in line with where it finished the 2009 season - Corser insists a good amount of progress was made and that it is now just the S1000RR's set-up that needs concentrating on.

"Obviously the wet conditions didn't do us too many favours, but at least we got to sort out a pretty good wet set-up," he said. "The loss of dry time and then the cold and damp track in the morning didn't allow us to do all the work we wanted to do, but I am pretty happy with what we did manage and the amount of progress we made.

"Unfortunately we didn't get a chance to try some new Ohlins forks, but we did try some different rear shocks and found some ideas that we can work on next time out.

"The track didn't feel so clean and that, together with the strong wind in the afternoon, was probably the reason I didn't make a big improvement in my lap times [on the final day]. But, for me and the team, what was important here was that we started the year in good shape and that the new people in the team got to know each other and work well together.

"I am really happy with the engine and now I feel that we have to get the chassis or the set-up and balance of the bike working better and that will allow me to push much harder. I feel that there's more there in the engine, but I can't use it and that is a little frustrating. If we can fix that piece of the jigsaw Ruben and I would be able to go quite a bit quicker and that'd be great fun."

Corser also praised the effect of Davide Tardozzi, the former Ducati Xerox boss making his public debut in BMW colours at Portimao, as well as Max Bartolini.

"Having Davide (Tardozzi) in the team is an asset and we are also lucky that Max (Bartolini) has joined us as well. He was Michel Fabrizio's race engineer and has heaps of experience and I'm sure that he and Davide will push the project forward considerably."

Troy Corser's Portimao test card

Friday AM: 1min 44.756s - 11th Friday PM: 1min 44.376s - 13th Saturday AM: (wet) 1min 57.237s - 8th Saturday PM: (wet) 1min 49.606s - 3rd Sunday AM: 1min 44.608s - 11th Sunday PM: 1min 43.931s - 13th

Overall: 1min 43.931s - 13th