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Old 04-04-2009, 12:42 PM   #1
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Pumping Loss

I'm starting this thread from a post in the "We dumped our diesel for a gasser" thread:

Originally Posted by jacarape View Post
what the heck is pumping loss? does that happen over 50?
Simply put, an engine is an air pump. It pumps air from the intake manifold to the exhaust manifold. The bigger the pressure difference between the two, the more power it takes to pump the air.

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Old 04-04-2009, 04:22 PM   #2
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Originally Posted by Originally Posted by [B
what the heck is pumping loss? does that happen over 50?
Well I don't know about you other guy's, but I'm over 50 and I have noticed a decrease in pumping pressure.

As for exhaust pressure, over 50, I've noticed a steady INCREASE in pressure and frequency.

So IMHO yes, it does happen over 50


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Old 04-04-2009, 07:32 PM   #3
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Originally Posted by ArtStream View Post

So IMHO yes, it does happen over 50

MPH, or YOA?
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