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adjustable wastegate 700

uid 55's pic
posted by  john sargent on  Fri Jan 31 03:50 CST 2003
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last visit: Wed Oct 22 09:07 CST 2014
[RELATED]

Turbosmart makes this kind of wastegate control, but there are response issues with the hose length to get into the driver's compartment.

"Also, It's been mentioned that a turbo loses power at altitude.
Isn't 10 pounds of boost at sea level the same as at 10 pounds at 7K ft.?"

No to that. If the turbo could produce the same amont of boost at altitude (and it can't), the air pressure at higher altitudes is lower. Ten psi of boost at 14.7 psi (sea level pressure) is not the same as ten psi of boost at when ambient pressure is 10 psi.

"Does the amount of manifold vacuum change with altitude?"

In cars the term Manifold Vacuum is used. The term Manifold Pressure is a better term becuase it will tell you how hard your engine is working no matter what the altitude. Manifold Pressure does change with altitude. When you have a manifold pressure gauge on an engine, it shows lower pressure at altitude.






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