Posted in  Features, PRI Coverage

PRI 2017: Speedway Motors Displays Helix Chassis


The world of dirt racing is expanding beyond belief in both the size, and the state of the competition. This has pushed aftermarket parts manufacturers to really step up their game when it comes meeting the needs of the racer and race team. Speedway Motors has recently played a big part in this arena with their help in the development of the new Helix Chassis.

This chassis is a byproduct of the expertise shared when the unique engineering inputs from Speedway Motors, and is brought to customers through EMi/Eagle Motorsports. The Helix Chassis is made for Sprint Car racing, and its versatile design incorporates traditional race test specs, and modern-day advances. It can be used in all classes of competition, and is only made to the specifications below.

Features Include:

  • 100% TIG welded construction
  • Made from lab-certified 4130 material
  • Uses double wing mounts
  • Has fixed tab locations for pre-drilled panels
  • Tall cage Cali top rail bend
  • Adaptable seat and tank mounting locations
  • Full and Half box steering mounts


Important Specifications:

  • Wheel Base: 87”
  • Engine Set Back: 40”
  • Left Bottom Rail: Raised 1”
  • Engine Angle: 1°
  • Roll Cage: Raised Rear
  • Crank Center: 7.5”
  • Front Tubes: 10.375”
  • Rear Tubes: 7.563”
  • Floor Pan: Short
  • Brake Tabs: 3-Wheel


These are beginning to ship, and heading out the door very quickly. This is a very cost-effective choice for anyone looking to build their car for the 2018 race season. Expect to see this high-tech Helix chassis in use during the upcoming race events, and in the winner’s circle.


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