Rizla Suzuki team manager Paul Denning has called for more help from the Suzuki factory after another tough weekend at the Australian Grand Prix.

Phillip Island has taunted the GSV-R ever since its 2002 debut and, while the team felt progress was made this weekend, the qualifying and race results were once again disappointing.

Loris Capirossi qualified eleventh and finished tenth, while home hero Chris Vermeulen started and finished in 15th on the grid - having being forced off track at turn two.

"It has been a really hard day for us because we really struggle with the bike here at Phillip Island," said Capirossi. "Overall, set-up and the tyres were working well right up to the last part of the race, but I had to push really hard to keep up with the other guys, and also as you could see our bike wasn't really fast enough on the straight."

"The bike worked quite well, but it is a lot down on horsepower here and it was really difficult to be competitive with the Ducati [of Sylvain Guintoli] that I caught up with - it just purely had a speed advantage and I couldn't get past and away from it," confirmed Vermeulen.

Indeed, by the end of the weekend, Capirossi and Vermeulen were ranked just 14th and 17th on the top speed charts, 10.1km/h and 13.2km/h adrift of Casey Stoner's 330.1km/h top speed set on his factory Ducati from first free practice (when Vermeulen and Capirossi also recorded their highest top speeds).

"Given the difficulties we've had in getting the GSV-R to work around Phillip Island, the weekend has had some very positive points in that our lap-times have improved a big step since last winter," said Denning.

"But both guys were handicapped today by a lack of outright speed and we certainly need some help from the Factory as soon as possible to compete on equal terms with the best guys," he warned.

Suzuki will remain at Phillip Island to test on Monday, in the hope of a more competitive showing at the forthcoming Malaysian Grand Prix.

"Let's hope we've got some good things to try," said Vermeulen.

"We have to continue to work hard and keep developing the bike, we still have two races left and we have to do our best in them," declared Capirossi. "Everybody is 100% committed to Suzuki and we know we have a long winter of testing to get the best from the bike that we can for next year. Everybody knows we are a still a bit behind and we have to work as hard as we can to improve our whole package."