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  1. #1

    56 mm or 58 mm Throttle body?

    i want to do mine but how much to bore it out? 56 OR 58MM?

    i'm planning to put vortech s/c impeller this weekend , hope it will run fine with bored TB and s/c impeller

    OR IT IS NOT NECESSARY???


    my present mods:
    -reflashed ecu(racing 8400rpm rev cutting)
    -158 degree rr thermo
    -rr s/c clutch
    -solas 14/19 (little modified shapen blade)
    -Riva power filter but extend longer to evade from heat fade,put the filter near the stock air deliver)
    -ngk dcpr9eix spark plug
    -jerry's filled ride plate
    -intake grate matched with rideplate
    -custom sponson but based on R&D (deeper)
    -ride plate down 1.5 mm for better turn in close course
    -just replaced a new wear-ring


  2. #2
    fabrication guru rapidacceleration's Avatar
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    the 56mm seam to work well, ive noticed more acceleration with mine.

    sorry but im not doing tb's anymore.
    but there is a few others out there now doing them.

  3. #3
    hope they could it for me with no issues

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