Noob Question. I've searched the forums and I've gathered on later models that the stock boost should be around 15 psi. I have an 09 GT with an HKS BOV and I'm topping out at 12 psi. I thought it might be the BOV, so I put the stock BOV back on with the same results. Is there something wrong wit the car or is 12 psi correct?
09 Speed 3 Stock Boost
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Its 15.5 to 16 and you have a boost leak buddy
what gear are you seeing 12psi in and how are you measuring it (boost gauge, dashhawk etc.)?
i know in the lower gears boost is a bit limited to help with traction, in 3rd up you should be seeing 15.6ish or so......
check all your clamps especially the turbo inlet clamp that is on the turbo... that thing is always loose and the culprit for many peoples issues...
good luck and keep us updated
i know in the lower gears boost is a bit limited to help with traction, in 3rd up you should be seeing 15.6ish or so......
check all your clamps especially the turbo inlet clamp that is on the turbo... that thing is always loose and the culprit for many peoples issues...
good luck and keep us updated
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Yea you deff have a boost leak
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Have you taken any parts off from the engine like the top mount?
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Also what are you using to read boost?
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I just found your problem. Prosports tend to fail I personally had a prosport premium electronic boost gauge and replaised it with a dashhawk. I would do the same if I were you
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It can be done depends on your driving iv pulled 300 miles on 11 gallons
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And mine does 25
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Trust me I'm plenty heavy on the gas 
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PriceMatchedParts .com haz em for 270 shipped
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Is worth every peny man you can monitor pretty much everything on your car with this think. It even reads the factory wideband o2.
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