Tuff Jet Class Rules

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Get those weekend warriors and Sunday cruisers out of storage because it's time to go hit the track. Muscle cars are what America is known for. There is no replacement for displacement.


Chassis Specifications
Aurora or Model Motoring T-jet chassis copper only
Gear plate rails maybe trimmed to lower the body
Shimming allowed inside and outside of chassis

No weight maybe added to chassis

No venting or lightening allowed

No metal bearings allowed
Guide pin maybe glued

Maximum width 1-3/16”


Armature

Stock T-jet arm 

Minimum ohm of 16.0 only 

Balancing allowed

Truing is not allowed


Electrical System  

Pick up shoes - stock Aurora T-Jet, American line or Wizard only (Copper)  

Shoes maybe restricted

Skis are not allowed

Pick up shoes springs - open

Brushes – copper composite flat brush only (maybe scored)


Magnets
Stock T-Jet only

Shimming is allowed with plastic or non-ferrous material
 

Gears 

Aurora or Model Motoring Brass - stock or stock replacement 

Beveled gears are not allowed 

Gears may be polished/sanded 

Shimming is allowed with plastic or non-ferrous material Stock Aurora crown gear or any other aftermarket crown gear for 9-tooth pinion.


Axles
Axles – open, no carbide
Rims – Aurora tuff one type front and back.

Aftermarket double flange is allowed
 

Tires
Rear Tires - Slip on silicone only.
Front Tires (Wide or narrow hubs) - rubber or o-rings.
Minimum front tire height .345
Minimum rear tire height .350

Bodies
Any, Aurora (t-Jet type), Johnnie Lightening, model motoring , Auto world, dash, etc.
Body must have front and rear glass. 
All body parts must be intact.
Injection molded, no resin, no Lexan
Minimum body weight 3 grams.
No Body weighting allowed
Body wheel wells may be cut

Body maybe lowered

Two screws are required