"It's going well, we've got a group of players who are coming together quite nicely" he said.
"We're in a decent pool, and they're hard, physical teams who always have a chance to turn people over. Norway aren't as good as last summer, they've lost their most talented player, but all three teams we play in the first round present a challenge for us.
"I'll be disappointed if we don't get to the final eight but you have to take it all at face value. If the players apply themselves, we'll do well. They're pulling together, and there's every reason to be positive."
Britain completed their warm-up campaign last week by splitting a pair of games against France under-18s at Southend, and Lewis was pleased with how his team played: "We won the first by nine, and lost the second by two points due to a last minute shot where I thought we were fouled in the build-up. It could have gone either way, but it was exactly what we wanted in terms of preparation. It was good to see two good crowds, and the people of Southend really embraced us."
GB won only one of their opening four group games last summer, although that 90-73 victory against Finland was enough to give them top spot in a three-way tie for third place in the group. However, with their defeat against Norway carried forward to the second stage, an 84-66 victory against Ireland was not enough to prevent them dropping into the 13-16th place play-offs where they lost 79-58 against Poland before sealing 15th spot with an 88-55 victory against the Irish.
Britain played all three of their first stage opponents last year, and although all of the teams have undergone changes in personnel, the fact that none of them finished in the top ten should Britain hope of progressing to the quarter-finals
GB open their campaign on Thursday evening when they play Norway. The Norwegians made their debut at this level in last summer's competition, and had a relatively successful campaign as they finished 11th.
Defeats in their opening three group games saw them drop into the 9-16th place play-offs, but they rounded off the opening stage with an 88-75 victory against Britain. Led by 18 Ben Mockford points, Britain had five players score in double figures, but where never able to overcome a poor first half which saw them 46-32 at half-time. Terrance Oglesby led the Norway scoring with 24 points, just below his tournament average of 24.4ppg. Norway went on to win two of their remaining four games to finish above GB.
Two days later Lewis' side face Finland, where they will look to repeat that victory last summer. Led by Orlan Jackman's 19 point, ten rebound double-double, Britain never looked back after a 27-19 first period. A 12-point win against Norway could not prevent the Finns finishing bottom of the group, and their only other victory was a 118-56 hammering of hapless Azerbaijan as they finished second from bottom in the 19 team competition.
GB wrap up the first round stage on Monday lunchtime with a game against Poland. The teams met in the 13-16th place semi-finals last summer, and despite 15 points and seven boards from Matthew Bryan-Amaning, Britain went down to a heavy defeat as Poland moved towards sealing 13th spot.
A top two finish in the group would see Britain progress to the last eight stage, where they would meet the top two from Group A, which consists of Slovak Republic, Portugal, Luxembourg, Sweden and Georgia. The bottom two sides in the group go into the two-stage 9-17th place-off, and regardless of where they finish Britain will play seven games during the 11-day tournament.
The full roster is as follows:
Jamell Anderson
Daniel (Larry) Awosanya
Allie Fullah
Myles Hesson
Andrew Lawrence
Ben Mockford
Will Neighbour
Patrick Nyeko
Colin Sing
Tyrone Treasure
Josh Rolls Tyson
Nigel Van Oostrum
