Volvo S80 A performance sedan that offers top notch luxury, outstanding handling and so much more.

boost gage

  #1  
Old 06-03-2008, 04:44 PM
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Default boost gage

i have a boost gage and want to hook it up and see if im gettingcorrect pressure.. i know it needs to go to manifold pressure.. is there a good place already on the engine like a cap or something or do i just need to search for a place.. once installed what kind of boost am i looking for 12 psi?
 
  #2  
Old 06-03-2008, 06:00 PM
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Default RE: boost gage

You have to search and maybe even install a t to get it connected.

I think the S80 is only set at like 5 to 7 PSI.
 
  #3  
Old 06-03-2008, 06:18 PM
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Default RE: boost gage

wow thats low... if your still here maybe you can tell what these things are.. i can get pics. anyway looking at the engine down at the turbos.. on the right side (again looking at from standing in front) on top of the right turbo there is a bare metal colorcylender shaped thing with a rubber line going in and a metal line comming out. the lines are small like 1/4"... looks like a selonoid of some sort. anyway the rubber line going to it is somewhat kinked and im wondering if this could be making the boost lower or something since im still not getting full boost.

the other thing is again looking down at the engine on the very top on the tube that comes out of the airbox there is a gaget on there with an electrical connection and also a rubber hose. it goes into the tube almost like it meters something. anyway its real loose in there and it looks like maybe air could come out of there even though i dont feel a leak.. i cant figure out how to get it out to check it.. it rotates real easily but doesnt come out with decent pressure.. thanks!
 
  #4  
Old 06-03-2008, 06:30 PM
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Default RE: boost gage

The first one should be the vaccum line feeding the waste gate valve.

The second not sure maybe the boost control valve or the Bypass valve.(Pic please)
 
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