Wenger insists his squad - boosted by the summer arrivals of Santi Cazorla, Olivier Giroud and Lukas Podolski - can step up a level as they prepare for a stern test of their ambitions at the Etihad Stadium.
"I have no doubt about the desire and hunger of my squad. Tomorrow will just tell you how strong we are at the moment," said Wenger.
"I believe we are quite strong, but we have some room for improvement.
"All is not perfect, but the signs we are giving are very good and very strong.
"The hunger is massive in this squad. They want to do well, they are focused and they want to win.
"We want to continue to improve."