International Cricket Council (ICC) revamped its process of dealing with reported suspect actions, increasing the limit of elbow straightening at the time of delivery upto 15 degrees for all bowlers.
"I have never been under pressure. Early on, it was proved I didn't have a problem with my action and I have put all the doubts about my suspect action under the carpet. They talk about 15 degrees, to me that is a hot day in Tasmania," Lee, in India on a promotional visit, said.
The 28-year-old fast bowler, who has been out of the Australian Test team, said he would not change his bowling style so as to get back into the playing eleven.
"What has happened in the last five-six years is that I started with (bowling around) 140 kmph, then two years ago I improved it to 150 kmph and in the last series I touched 161 kmph," said Lee.
"I am getting stronger, I am still young. The trend is to improve the speed with each passing match."
Lee went out of the team with ankle injury after the fourth Test against India at Sydney in 2004. Since then, he has been warming the bench while Michael Kasprowicz cemented his place with some accurate seam bowling.
The New South Wales player, who was disappointed to have not played a match on the tour of India early last season when Australia won the four-Test series 2-1, believed he had done what has been asked of him and hoped he would be able to break back into the team on the Ashes tour.
"That was the hardest thing to go through ... I sat down with the selectors 15 months ago and three things were asked of me -- to first get back from the ankle surgery 100 percent fit, to get back to taking wickets, and to get my speed back to where it was," he said.
"In the last two months I have worked hard on my fitness, and in the two tournaments back home, I was the leading wicket taker.
"I had increased my speed from 145 to 160 kmph, so I would put a tick against all the three. I have done everything that has been asked off me, so I don't see why I should not be back in the team.
"Hopefully the opportunity will come on the Ashes tour," he said.
Lee said the current England team would prove to be a tough challenge but Australia had the players to meet them.
"Any team on a given day is tough to beat. England have quality players, but we too have an amazing squad. A strong pace attack and the greatest spin bowler."