PORT ST. LUCIE — Zack Wheeler likes what he sees about the Mets, and he is not afraid to talk about it.

He took the bullpen mound Tuesday at the team’s spring training complex, an area called the “six-pack.” Matt Harvey stood on the mound to his right while Jacob deGrom was to his left.

“That was cool,’’ Wheeler said later, noting the team culture is changing rapidly.

Some are criticizing the Mets’ young players for speaking their minds and saying the franchise finally is on its way back to the postseason.

Wheeler, who never is afraid to speak up, when asked, said the fact the Mets are talking big is what this team needs, because the Mets have to back up those words.

That is a good kind of pressure for players to endure.

“I think it’s going to be a big year for the team and for me,’’ Wheeler, 24, told The Post. “We have the talent to be good and contend, if we put it all together. The biggest thing for me is to cut down pitches per inning early in the game.

“If you [put] goals out there, you are going to go out there and try a little bit harder,’’ he said. “You don’t want it to be like, ‘Oh man, I said this two months ago. I can’t be out here doing terrible.’ ’’

Putting your money where your mouth is.

“Exactly,’’ said Wheeler, who was 11-11 in 2014 with a 3.54 ERA.

“We’re going to be a fun team to watch,’’ he said. “We’re young, we’re going to be an exciting team. We’re sort of like the Royals. For the most part, everybody is young and we are still trying to figure out how to be successful day-in and day-out on the big-league level.

“Once everybody figures out how they can contribute each day to the team, I think that’s when it will be great.

“The Nationals are better [than last year], and so are the Marlins,’’ Wheeler said of the NL East competition. “It’s going to be a tough division up there at the top, but I think we have a good chance of contending.’’

Wheeler said “it’s time’’ for the Mets to put it all together.

“We’ve got the people here to do it, so why not?’’ he said.

Wheeler said he is better learning to control his body on the mound, especially when the adrenaline is pumping and it is making a big difference.

“I’ve improved in that area,’’ he said. “It’s a big difference from when I was drafted. In my own eyes I’m getting better step by step.’’

The young guns have bonded.

“We are all from different places, we all grew up differently, our personal lives are a little bit different but we all have the same things in common,’’ Wheeler said. “We all like to joke around, give each other a hard time. We all get along. Nobody is too serious.

“Obviously, Matt took The Show by storm and so did deGrom. Me and Noah [Syndergaard] may be a little bit different, so I think that’s always the thing, you can’t really compare pitchers to their success because they did unrealistic things.’’

Wheeler said he strongly believes David Wright will get his groove back.

“I think his shoulder will be fine,’’ he said. “David has been down here working hard offseason, and I think [Curtis] Granderson knows his body and what he’s been doing wrong and I think [hitting coach] Kevin [Long] can help him with that.

“If [Lucas] Duda stays healthy, he is going to have another big year. He reminds me of myself. He’s quiet. He’s not going to go out of his way to talk to anybody; that’s how I am. Laid back, but he works hard, wants to get to the top and be the best.’’

That is the way Wheeler was taught — to be the best — and he credits the influence of his older brothers Jacob and Adam for their strong support.

“Jacob has helped me so much with the mental side of the game,’’ Zack said. “Adam played four years with the Yankees [organization] and would always come back and teach me something.’’

It’s time now to put it all together.