Quick Cummins slow to check the speed gun

Express pace bowler Pat Cummins says he has no idea just how fast he is bowling during a match as he continues his impressive one-day international series against England.

Cummins claimed career-best figures of 4-49 in Friday's three-wicket loss to England which tied the series two-all with the decider set for Sunday at Old Trafford.

The 22-year-old quick was again touching speeds of 150kph throughout his allotted 10 overs, but says he is oblivious to how fast he is bowling on the ground.

"I don't see it at all when we're playing, it's not up on the screen anywhere," Cummins said.

"It's nice to hear some of the speeds after the game, when they're high.

"To be honest the only reason we really look after the speed is to pick on the allrounders who think they're bowling fast but they're 10 miles slower.

"It's nice to hear when it's pushing to mid-90s (mph). But I don't take too much notice during the game."

Watch: Cummins in the wickets with career-best haul (restrictions apply)

Cummins is comfortably the leading wicket-taker across the four matches of the series so far, taking 12 wickets at 16.91 and striking every 19 deliveries.

But when asked to sum his performance, Cummins was typically modest, calling it "not too bad" and was quick to outline areas of improvement.

"As a whole, all these games, that new ball we need to work on and me certainly today as well, those first couple of overs," Cummins said.

"It all feels good. I feel pretty comfortable and want to get in the contest every game. So I've been pretty happy."

While Cummins is flying, the rest of Australia's attack appears to be struggling, statistically at least.

Watch: Cummins on form, speed and Maxwell after fourth ODI

Australia's second best bowler this series is allrounder Glenn Maxwell with six wickets. Behind him is another allrounder Mitchell Marsh with four.

Returning quick James Pattinson is yet to take a wicket in two matches this series and is going for more than seven runs per over.

And world No.1 ODI bowler Mitchell Starc, who was rested for Friday's match after a gruelling four months abroad, has taken only four wickets in three matches and conceded the most runs in a match of his career last start in Manchester.

While Cummins doesn't know if Starc will be back for Sunday's decider at Old Trafford, he hopes his NSW Blues teammate and 2015 World Cup player of the tournament is recalled.

"He's still here so I hope he's going to be available for Sunday," Cummins said.

"Obviously it would be pretty handing having the No.1 bowler in the world back in our side.

Watch: Extended highlights of fourth ODI (restrictions apply)

"I've got no idea (whether he's coming back) but he's not on a flight so hopefully he's playing on Sunday."

Excluding one-off matches, Australia have lost only two of eight ODI series since Darren Lehmann took charge as coach two years ago.

Lehmann, new full-time captain Steve Smith and his charges will want to make it lucky No.7 with a win on Sunday.