Suggested build for a Neo Drag car:
Viper Stiff chassis with rear axle retaining pins,o-ring front axle set, Viper guide pin
Viper Gen-4 Spring Plate endbell with Pro bushing - do NOT use ball bearings in the endbell. Use helper springs in the endbell.
Viper 30G NXS Turbo armature with Viper rear bushing or Scale Engineering metal bushing, bearing can be used but make sure it slip-fits the shaft
Viper Pro- 42 Neo motor magnets, and Pro-4 to Pro-10 Traction magnets. Pro-42 Neo motor magnets may need the bottom outside edges of the magnets rounded to reduce downforce depending on the track. If you don't know how to do that, call me.
2.40 to 2.56 gear ratio made up of steel or bronze pinions and bronze crown gears from Quicker Engineering or Wizzard.
Some sort of firm silicon sponge rear tire between .440" and .450" OD. Slip-On tire will NOT work.
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