Thread: 300 HPDI

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  1. 04-20-2019, 12:20 PM #1
    captdwayne
    captdwayne is offline
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    300 HPDI

    I have a 2004 300 HPDI that was purchased a couple months ago. It has Hydro Tec heads, reeds, and tuner. Trying to figure out if the throttle body has been turned into a big bore. How can I tell??
    Working on getting the TPS set with the mods. Any suggestions on voltage for the TPS? I found a thread on here that states . 65 with butterflies closed and .75 final setting with a Phase III kit installed. Does that sound correct?
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  2. Mr.Miyagi
    Mr.Miyagi is offline
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    #2 06-03-2019, 06:45 PM
    Phase 3 throttle body has carbon fibre butterflies. Stock VZ300 has 46 mm 250 has 43mm
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