vf39 tapering to ? help gurus!
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This is a discussion on vf39 tapering to ? help gurus! within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; ok guys i got tuned by john s. we noticed some smoke when we got it on the dyno. we ...

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    Jul 2008

    vf39 tapering to ? help gurus!

    ok guys i got tuned by john s. we noticed some smoke when we got it on the dyno. we also noticed that my VF39 wasnt holdin proper boost its peaking at 19psi and then tapers quickly to about 11psi. im wondering if my turbo is on its way out because a vf39 should only taper to about 14psi. my car is still making decent power 246whp 298w/tq. check out my graff. and help me trouble shoot>
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