The 65-year-old believes he can keep the team up, but he underlined just how big a task lies ahead for him if he is to stop QPR slipping in to the npower Championship.
"We really have to show top-six form," Redknapp said.
"We will need as near to 40 points as possible.
"That is a point and a half a game.
"It's going to be tough but it can happen. You can go on a run and do that."