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Boost gauge installation 850 1997

posted by  someone claiming to be Brian on  Fri Dec 28 16:07 CST 2001 [RELATED]

I bought a boost gauge for my 97 850.. any idea where this hose connects to the engine? I found a site that showed it being installed. It put the hose on the vacuum tree next to the throttle pulley..is that right? i connected it there, but when i got on it hard, it only showed 4psi. So my questions are, is this where the hose conects and what should the stock psi be for a low pressure 850 turbo?
Thanks








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    Boost gauge installation 850 1997

    posted by  Sin on  Fri Dec 28 16:57 CST 2001
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    That's a good place to get a good/accurate reading for actual boost. And 4 psi sounds about right for a low pressure turbo. A stock high pressure turbo pushes about 9.849psi. So I would imagine a low pressure turbo to be about half that. Most aftermarket chip manufacturers for the high pressure turbos only get to about 13.965psi. Any higher and the stock wastegate makes any other increases useless.

    To answer your question again, 4psi sounds about right.








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      Boost gauge installation 850 1997

      posted by  someone claiming to be Brian on  Sat Dec 29 17:00 CST 2001 [RELATED]

      Thanks for the info..now if i can figure out where it goes.. where is that 740's gauge plugged in?







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