Quote:
Originally Posted by BSiple
How would the Ecoboost do at say 9,000 feet or so?
It takes every bit of my 6.0L Powerstroke in the Excursion to pull my 26 foot fully loaded toy hauler (80 gallons of water, 25 gallons of gas, toys, etc.).
I suppose at sea level or close to it, a regular V8 or the Ecoboost would do just fine, but I towed for years with my 5.3L Tahoe (older different camper) and it struggled a few times.
Also is the transmission in the Ecoboost the Torqueshift or whatever Ford is calling it now?
Bill
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A turbine off the exhaust is driving a air centrifugal compressor that feeds the intake for the motor. The centrifugal supercharger gets spun faster with the lower resistance at a higher altitude, and still delivers the raised intake pressure. The turbine powering the supercharger, at higher RPM's, can provide more than enough power, which is why there are bleed off valves.
Basically, you have a unit that as exhaust gasses build, would start operating at over 100% of the amount required, so the rest is bled off. Raise the altitude, and it still starts bleeding off what is over 100%.