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fagnaml

Turbo Pressure -- Curiosity Questions

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As always, I never complete Motorhome 101 class.   Even though I have owned my motorhome for 2-1/2 years, this weekend was the first time I "played" with my  Freightliner dashboard "read-outs".  I discovered that one of the available read-outs is "Turbo Pressure" which I selected out of curiosity.  What I discovered was the turbo pressure while idling is 0 psig with the turbo pressure reaching 27 psig while accelerating from a full stop.    This turbo pressure reading makes sense to me i.e. low exhaust gas flow while idling to max exhaust gas flow while accelerating.   For reference my engine is a 2007 EPA Cummins 300 HP ISB.

My curiosity questions are:

1) Is this turbo pressure range "typical" ?

2) Is turbo pressure a "read-out" worth monitoring ?

Thanks for your thoughts.

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1 hour ago, fagnaml said:

 

My curiosity questions are:

1) Is this turbo pressure range "typical" ? ABSOLUTELY

2) Is turbo pressure a "read-out" worth monitoring ? A QUICK INDICATOR OF FUEL BEING USED-- LOWER BOOST, BETTER MPG.  ALSO, MONITOR IT OVER TIME.  IF MAX BOOST FALLS FIND OUT THE CAUSE (SUCH AS LEAK IN HOSE OR CAC).

Thanks for your thoughts.

 

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Brett --

Thanks for the prompt response.  My lingering question is "Will I ever complete Motorhome 101 class?"

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Mike, for what its worth, I monitor engine temp, transmission temp and turbo boost.

I found a switch on the dash today for the courtesy lights in the bedroom and rear bath.  Who knew? 

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Will add this/ 27 psi is pretty much normal. On a really chilly day it might approach 30. No living human could possibly  teach Motorhome 101.  Still struggling with remedial Motorhome classes and that started in 1986 with a rental to be amplified by a purchase in 1988.🙄

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Mike.

Welcome to the club!  As long as you need help here, like me, your in school.  The answer is above my "pay scale"! :P

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The path to understanding and knowledge is in the members of the forum! 

 BTDT.  The lesson is one a person never forgets and those that are often to comfortable walking out on a limb. 

Learning never really ends, because there are always changes. Unless one is happy to set and watch the world go by.

Rich.

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