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Thread: Nitro Identificaion

  1. #1
    Team Member Dvdracing's Avatar
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    Default Nitro Identificaion

    Can anyone confirm if this is nitro lower with 15:28 gears ?Name:  1970.JPG
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    Team Member zul8tr's Avatar
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    ? - but those bolts thru the skeg don't help the prop performance. If the longer skeg needed weld would be the way. Gear ratio (GR) can be measured pretty close with 1 flywheel rotation (by hand) = 360 degrees and measure partial rotation of a point on one blade like the tip at max diameter in degrees from its start position. Then GR = 360/ prop rotation in degrees. Then compare number to 28/15 = 1.87, if carefully measured it either agrees or not.
    " Three may keep a secret if two of them are dead" Ben Franklin

    Location: SW Orlando, Fl

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    Team Member Dvdracing's Avatar
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    My question is this nitro lower not the bolt

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    yes
    could have one of 2 ratio gear sets in it
    if its on a 2 cyl the driveshaft spline is different than a 3 cyl

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    Team Member Dvdracing's Avatar
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    I just need the gears for spares

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