1 SSME (Space Shuttle Main Engine):
Thrust(Vac): 490,850 pounds (2.18MN) at 104.5% of Design Thrust
Thrust(SL): 400,000 pounds (1.78MN)
Chamber pressure: 2,747 psi (18.9 MPa) at 100% power
Weight: 7000 LBS
Combustion Chamber Temp: 3300 *C, 6000 *F
Fuel Consumption Rate: 3,917 liters, 1,035 gallons per SECOND
And most of what comes out is water vapor.
http://en.wikipedia.org/wiki/File:SSME_ ... onents.PNG 8-)