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This is a discussion on 2004 Mods? within the Engine Performance forums, part of the Tutorials & DIY category; Originally posted by ryland I did the 3/16th mod and it 100% screwed up my FBC. Full throttle in 3rd, ...

  1. #16
    Registered User PolarisSnT's Avatar
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    Aug 2002
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    Staten Island, NY
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    3,864
    Originally posted by ryland
    I did the 3/16th mod and it 100% screwed up my FBC. Full throttle in 3rd, 4th, or 5th gear would result in boost wavering between 12-19psi. It would swing back and forth between those two extremes at WOT. After about 10 minutes of that, I put the stock restrictor back in. Putting stock one back in solved the problem, and I am positive it was not leaking or anything, as all connections were very secure, and it was the only piece that was changed.
    I ahve the 3/16th connector sitting in front of me and tried to do it but I was uncertain. First off the stock restrictor is not black like all the diagrams say it is, and secondly with what you just said, im a little scared. Anyone have more insight?
    Dan- 2004 PSM 5spd

    "Days get shorter, nights get longer, snow gets deeper, life gets better."

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  3. #17
    Registered User Ponyboy050's Avatar
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    Jan 2004
    Location
    Sugar Land, TX
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    181
    Yeah, I'm terrified of screwing up so if anyone has any better instructions, or preferably, pictures that could help, thanks.

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