Wright-Phillips struck a wonderfully-taken opening league goal since arriving at Loftus Road in August 2011 as Rangers left Stamford Bridge with their first win there in 30 years.
"If Chelsea struggled to break us down, with the way we played against them, then a lot of teams will," Wright-Phillips said.
"We've never stopped believing we could escape ever since we got in this situation.
"We still believe it strongly and it was a great relief to get that result at Stamford Bridge.
"Away from home we haven't been the best and we've dropped a lot of points, so this is something we have to consolidate now."
It was the perfect response to Sunday's meek 3-0 surrender to Liverpool, a result that prompted manager Harry Redknapp to hold a meeting with his players to convince them that the club will survive in the top flight.
QPR host West Brom in the third round of the FA Cup on Saturday but it is the month's remaining league fixtures against Tottenham, West Ham and Manchester City that will dominate their thinking.
Striker Jamie Mackie insists their heroics at Stamford Bridge, which were founded on defensive organisation and commitment, must be used as a launchpad to safeguard their place in the top flight.
"It's important that we continue displaying the belief we showed last night, otherwise a massive result like that can be wasted," Mackie told talkSPORT. "When we stayed up last season we got an unbelievable result against Liverpool when no one expected it. It gave us belief, we got some results and it kept us up."
Source: PA
Source: PA