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Boost Spiking Abit After Fmic Installed?

hayden49

By hayden49,
in Engines & Forced Induction

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hayden49 Rising Star

hayden49

Posted
Posted

Hey guys,

on sunday i installed my gk tech cooler and all went well after some hasltes fitting and we got the cooler on.

however, the intercooler piping does not have the niple on it that the stock piping had so i took the vacum hose which was plumbed onto the stock piping and T peiced it off on the vacum hose coming from the top of my plumback bov.

as of now when i give the car abit the boost can spike to as high as 0.9bar then instantly go back down to 0.5bar then rise again to about 0.7bar near redline.

would it have something to do with the length of the hose i used to plumb the stock boost solenoid into the bov vacum line?

Pretty soon im going to get a nippled welded onto the cooler pipes in the same spot that the stock one was but for now, is there somewhere else i should plumb that hose to?

if i havnt explained myself enough let me know.

cheers

paulr33 Grand Master

paulr33

Posted
Posted

with that line disconnected you are running unlimited boost

you need to rectify this is your will experience failure immediately.

make sure the line is connected and take it from the same location, get a nipple fitted

hayden49 Rising Star

hayden49

Posted
  • Author
Posted

Nah mate i plumbed the line that was connected to the stock coole piping onto the vacum line which runs from the inlet manifold to the top of my plumback blow off valve so its still only boosting 0.5bar.

I will get a nipple welded onto the pipes as soon as i can though.

cheers

Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

Posted
Posted

Nipple welded on will solve all the problems.

By having it connected to the vacuum line that goes to the BOV is too far. The Actuator is very sensitive, thats why when installing boost controllers they recommend that the hoses are as close to the actuator as possible but far enough so there's no heat problems.

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