The 1-0 win at QPR on Saturday extended Arsenal's unbeaen league run to eight matches and lifted the Gunners to third - two points ahead of fifth-placed Spurs having played a game more.
Wenger's side face Wigan on Tuesday before closing with a trip to Newcastle next weekend, and the Frenchman is aware that two victories is a minimum requirement to earn Champions League football.
"It's very tight and it's down to the team who makes no mistake," he said. "But I love it because it's a lot of tension and very exciting. It's demanding as well, because it's not easy.
"We definitely have momentum, if you look at the points we have made compared to two months ago. We are going for it.
"Away from home recently, we've won everywhere - at Fulham, at Sunderland, at Swansea and at QPR. It was a derby which was difficult to win."
Chelsea's clash with Spurs at Stamford Bridge on Wednesday could go some way to deciding the Gunners' Champions League fate, and Wenger added: "Of course I want a result that goes for us, but again, it's not because I wish something that you will get the result.
"A long time ago we focused on us getting the maximum points. We have nearly done that because we dropped two points against Everton and two points against Man United.
"Apart from that, we've won every single game since losing to Spurs in March and we have to continue to do that."