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2G Why is this ran like so?

Posted by SaskTSI, Aug 17, 2019

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  1. SaskTSI

    SaskTSI Proven Member

    34
    1
    Joined Aug 17, 2019
    St. Brieux, SK, Canada
    Why would the previous owner have run a line from the intake manifold/throttle body area, straight to the waste gate bypassing the stock boost controller?
     

    121  1

    1995 Eagle Talon TSi AWD
    awd · manual · 2G DSM
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  2. ThunderChild

    ThunderChild Supporting VIP

    2,541
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    Joined Jan 5, 2012
    Rathdrum, Idaho
    To run straight wastegate pressure, but it should be on the charge pipe, pre-throttle body. Sounds like incorrect install to me.
     

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    1992 Eagle Talon TSi AWD
    manual · 1G DSM

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    1992 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  3. stillrunning

    stillrunning Proven Member

    102
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    Joined Oct 10, 2013
    brandon, Florida
    The only real issue I see with using manifold pressure is the wastegate actuator will see vacuum as well as pressure.
    It will achieve the same basic result really, set pressure opening the wastegate from manifold pressure rather than turbo compressor housing or charge pipe.
    What you see on your boost gauge is the same signal the WG actuator will see.
     

    Street Build 419  3

    1997 Mitsubishi Eclipse Spyder GST
    fwd · manual · 2G DSM
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  4. ThunderChild

    ThunderChild Supporting VIP

    2,541
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    Joined Jan 5, 2012
    Rathdrum, Idaho
    Wastegate chatter when going on/off throttle.
     

    Street Build 210  3

    1990 Plymouth Laser N/T
    fwd · manual · 1G DSM

    291  8

    1987 Toyota Pickup/Hilux
    awd · manual · Misc Vehicles

    Street Build 841  7

    1997 Mitsubishi Eclipse Spyder GST
    fwd · manual · 2G DSM

    Street Build 1K  1

    1992 Eagle Talon TSi AWD
    manual · 1G DSM

    Street Build 2K  10

    1992 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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    Kryndon likes this.
  5. SaskTSI

    SaskTSI Proven Member

    34
    1
    Joined Aug 17, 2019
    St. Brieux, SK, Canada
    this is where its td into
     

    121  1

    1995 Eagle Talon TSi AWD
    awd · manual · 2G DSM
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  6. Mello

    Mello Proven Member

    928
    221
    Joined Jul 4, 2003
    Albuquerque, New Mexico
    Are you sure the hose from the intake is to the waste gate? By chance could you mean BOV?
     
  7. SaskTSI

    SaskTSI Proven Member

    34
    1
    Joined Aug 17, 2019
    St. Brieux, SK, Canada
    Wastegate
     

    121  1

    1995 Eagle Talon TSi AWD
    awd · manual · 2G DSM
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