Jimmy Smith helped pile more misery on Crystal Palace boss Peter Taylor with a superb double as QPR came from behind to sink the sorry Eagles.
Palace went ahead when Tom Soares tapped in but on-loan midfielder Smith fired a spectacular equaliser.
Clinton Morrison put Palace back in front after Leon Cort's knock down.
But Steve Lomas drilled in his first for Rangers, Kevin Gallen scored from the spot after Danny Butterfield fouled Lee Cook and Smith swept in his second.
QPR manager John Gregory on Jimmy Smith:
"It's a privilege to have him here. He gets in first every day for training and on his home debut he turned up at 11.20am.
"But he sets the tone in training which is amazing for one so young.
"He's improved our attitude by the way he trains. We have to send him in sometimes and say 'you've had enough'."
Crystal Palace manager Peter Taylor on chairman Simon Jordan:
"Simon is a very supportive chairman and I'm embarrassed for him. I want a better team for him.
"We're not showing it at the moment but he's been first class. There's always pressure, you put pressure on yourself.
"It's not working out as nicely as I thought it would when I came here. I'm surprised at the position we're in."
QPR: Royce, Mancienne, Stewart, Rehman, Bignot, Ainsworth, Lomas, Smith (Ward 90), Cook, Gallen (Nygaard 81), Blackstock.
Subs Not Used: Paul Jones, Milanese, Rose.
Goals: Smith 34, Lomas 59, Gallen 66 pen, Smith 69.
Crystal Palace: Flinders, Butterfield (Freedman 69), Cort, Ward, Granville, Soares, Lawrence, Kennedy, McAnuff (Hughes 82), Morrison, Kuqi.
Subs Not Used: Kiraly, Fletcher, Green.
Goals: Soares 30, Morrison 43.
Ref: P Dowd (Staffordshire).