|
And if you think this is a way to show off, it's not, and I never intended it to be.
If you think so, please delete the thread, I don't care.
This is what I know, and someone correct me if I'm wrong:
Net Power is different for NA and turbocharged engines. For NA,
it's (indicated mean effective pressure) - |Intake Pressure - Exhuast Pressure|
The |intake pressure - exhuast pressure| portion is the absolute difference and is called pumping losses.
For a turbocharged engine, since intake pressure is raised by the turbine, pumping losses are added to the IMEP. Basically, the pumping losses become gains for the engine.
Now, if pumping loss is intake pressure - exhuast, and intake pressure is approximately 0.95 atm at WOT, you basically want to minimize losses by letting that difference come as close to zero as possible.
Now, my personal question is, is exhuast pressure exactly the same thing as back pressure? Or is back pressure just atmopheric pressure? I'm not 100% on this, and if anyone can help I would appreciate it.
|