Tuff Jet Class Rules- 1.1875" (1-3/16") wide

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

Maximum tech width= 1.1875" (1-3/16")

Only Aurora or Model Motoring copper T-jet chassis
Chassis must remain stock without modifications

No venting, lightening or trimming allowed

Chassis gear plate rails maybe trimmed except under clip

No weight maybe added to chassis

No metal bearings allowed

Guide Pin maybe glued

Armature
Any stock Aurora T-jet or Model Motoring armature 

Grey tip 2 lam is allowed. 

Minimum ohm of 16 

Armature can be balanced and trued

No Rewinds or De-winds allowed.

Electrical System
Stock copper chassis - no modifications
Brushes - flat copper open (maybe scored)
Any copper pickup shoe allowed, no ski shoes (maybe restricted)

Magnets
Original TJet Aurora magnets- Green/White, Green/Orange, Black/Black, Black/Black with White Stripe and OS3 "Red Dragon" only - no modifications.
Magnets may be shimmed with plastics or non-ferrous metal.

No killer bee magnets.

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.
9 tooth pinion only
Crown gear can be aftermarket no smaller than .300 inch

Axles
Any axles allowed
OEM rims or aftermarket double flange rims.
No brass or weighted front ends.

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

Minimum rear tire height .350

Bodies
Any, Aurora (t-Jet type), Johnnie Lightning, 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