The Premier League club were beaten 3-1 by League Two Bradford City in the initial fixture a fortnight ago and now Lambert has called for raucous support in order to get the players over the line as they chase a place in the February 24 Wembley final.
"It will be a different game with the crowd right behind us," Lambert told the club's official website.
"We had a lot of chances up at Bradford. If we can create that amount of chances, then we'll be close.
"If we get through it will be absolutely fantastic. The crowd will be unbelievable and that will drive us on, I'm sure.
"We will give it everything we've got to get through. It would be a great occasion if we can do it. It would be great for everyone at the club. It can definitely play a huge part in the season turning (around)."