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Uneven boost pressure

Discussion in 'Peterbilt Forum' started by Chickenman379, Mar 10, 2012.

  1. Mar 10, 2012 #1
    Chickenman379

    Chickenman379 Bobtail Member

    5
    0
    Feb 15, 2012
    Ephrata pa
    0
    I have a 5ek it has two boost gauges on it one on turbo and the other intake at the turbo I get 41 psi and intake 20 psi I can get them to equal out but the intake side is slow and not as quick as turbo had air to air and all hose check and rechecked I but 50 psi to the system and it was good check gauges as well came back good just wondering what else to check
     
    Chickenman379, Mar 10, 2012
    Chickenman379, Mar 10, 2012
    #1
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  3. Mar 10, 2012 #2
    truckmechanic

    truckmechanic Medium Load Member

    534
    140
    Jan 14, 2012
    Hi Desert Ca
    0
    Sounds normal when ever I check boost at the turbo on a truck with a boost gauge on the intake side I always get boost faster right off the turbo you have to consider that it will not be able to pressurerise the whole system right away there's a lot of area between turbo outlet and the intake side with the gauge off the turbo your getting full boost right off the bat kinda like airing up a small tire vs a big tire high tires gonna take a little longer to fill with air I could ne wrong but that's my .02
     
    truckmechanic, Mar 10, 2012
    truckmechanic, Mar 10, 2012
    #2
  4. Mar 11, 2012 #3
    bender

    bender Road Train Member

    2,105
    1,361
    Jul 20, 2010
    Don't Kid Yourself
    0
    You also have the restriction of the air charge cooler to consider as it will slow the flow and the cylinders are depleting manifold pressure.
     
    bender, Mar 11, 2012
    bender, Mar 11, 2012
    #3
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