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Mini-Z racing
Tiny Speed
The Track is UP AND RUNNING!
Mini-Z Class Rules
2WD Stock Class
8.1.1 - Chassis
8.1.2 - Kyosho Mini-Z MR-03 RWD Chassis.
8.1.3 - 98mm wheelbase only. 102mm Le Mans style wheelbases are prohibited
8.1.2 - Body
8.1.2.1 - Kyosho Mini-Z 98mm Autoscale bodies only, Le Mans style and lexan bodies/spoilers are
prohibited.
8.1.2.2 - Full Kyosho Mini-Z window piece must be installed. No Lexan windows.
8.1.2.3 - Weights on Box Stock Mini-Z bodies are prohibited.
8.1.3 - Motor / Drivetrain
8.1.3.1 - Kyosho Stock Motor (Part# MZ9P) only.
8.1.3.2 - Stock gear differential must be used.
8.1.3.3 - Stock 44 tooth spur gear with a stock pinion gear having a maximum of 9 teeth is
permitted. Replacements for both can be used, but must be of the same part numbers
found on the box stock car at the time of original purchase.
8.1.3.4 - Open wires for use on stock motor.
8.1.3.5 - Capacitors on stock motor must not be removed.
8.1.4 - Transmitters
8.1.4.1 - Open to any transmitter
8.1.4.2 - Open to ASF, FHS, or FHSS receiver board use only.
8.1.5 -Battery
8.1.5.1 - Cars must be powered by four Ni-MH AAA batteries.
8.1.5.2 - No Battery cells of capacity lower than 750mah
8.1.6 - Option Parts
8.1.6.1 - Aluminum wheel nuts and ball bearings are allowed if car does not have them at time of
original purchase.
8.1.6.2 - Any Kyosho or Aftermarket Front Spring may be used.
8.1.6.3 - Any Kyosho or Aftermarket T-Plates may be used.
8.1.6.4 - Any Kyosho or Aftermarket Oil Filled Center Shock may be used.
8.1.7 - Wheels
8.1.7.1 - Wheels used must be 20mm in size, as they come in 98mm MR03 Mini-Z purchases.
8.1.7.2 - Aluminum or Le Man style wheels are prohibited.
8.1.8 - Tires
8.1.8.1 - Any brand of Production Rubber Mini-Z tire only.
8.1.8.2 - Homemade tires, Foam tires, Silicon tires, Urethane tires, Ethyl Carbamate tires are
prohibited.
8.1.8.3 - Tire inserts are prohibited.
8.1.9 - Additional Notes
8.1.9.1 - At this time, 102mm wheelbase style Stock Mini-Zs are not allowed to race in the stock class. After much testing we found that these cars greatly outperformed the 98mm wheelbase stock Mini-Zs in almost every way. Far more 98mm wheelbase stock cars are purchased versus the less common 102mm wheelbase cars, so we have chosen to have the stock class run only 98mm wheelbases to keep the playing field even for the larger audience coming into Mini-Z. With this, we want to provide a few options for those that own this type of Stock Mini-Z:
2wd 4100kV Brushless
8.2.1 - Chassis
8.2.1.1 - Open to Kyosho Mini-Z EVO RWD Chassis only. No aftermarket chassis.
8.2.1.2 - 98mm or 102mm wheelbase allowed
8.2.2 - Body
8.2.2.1- Kyosho Autoscale bodies only (98mm or 102mm wheelbase), Lexan bodies are
prohibited.
8.2.2.2 - Lexan spoilers and windshields are permissible.
8.2.3 - Motor / Drivetrain
8.2.3.1 - Kyosho 4100kv Brushless Motor Only (Part# MZ606).
8.2.3.2 - Stock gear differential only.
8.2.3.3 - Maximum of a 9 tooth pinion gear.
8.2.4 - Battery
8.2.4.1 - Cars must be powered by four Ni-MH AAA batteries.
8.2.5 - Option Parts
8.2.5.1 - Any aftermarket brand Mini-Z production parts allowed.
8.2.5.2 - Any homemade parts, 3D printed parts, and prototype parts also allowed.
8.2.6 - Wheels
8.2.6.1 - All brand Plastic and Aluminum Mini-Z production wheel rims are allowed.
8.2.7 - Tires
8.2.7.1 - Any brand of Rubber Mini-Z Production tire only.
8.2.7.2 - Homemade tires, Foam tires, Silicon tires, Urethane tires, Ethyl Carbamate tires are
prohibited.
8.2.7.3 - Tire inserts are prohibited.
2WD 5600kV Brushless
8.3.1 - Chassis
8.3.1.1 - Open to Kyosho Mini-Z EVO RWD Chassis only. No aftermarket chassis.
8.3.1.2 - 98MM OR 102MM wheelbase allowed
8.3.2 - Body
8.3.2.1 - Kyosho Autoscale bodies only (98mm or 102mm wheelbase), Lexan bodies are
prohibited.
8.3.2.2 - Lexan spoilers and windshields are permissible.
8.3.3 - Motor / Drivetrain
8.3.3.1 - Kyosho 5600kv Brushless Motor (Part# MZ605) or Kyosho XSPEED Mini-Z Motor-V
(Part#MZW301)
8.3.3.2 - Stock gear differential only.
8.3.3.3 - Maximum of a 9 tooth pinion gear.
8.3.4 - Battery
8.3.4.1 - Cars must be powered by four Ni-MH AAA batteries.
8.3.5 - Option Parts
8.3.5.1 - Any aftermarket brand Mini-Z production parts allowed.
8.3.5.2 - Any homemade parts, 3D printed parts, and prototype parts also allowed.
8.3.6 - Wheels
8.3.6.1 - All brand Plastic and Aluminum Mini-Z production wheel rims are allowed.
8.3.7 - Tires
8.3.7.1 - Any brand of Rubber Mini-Z Production tire only.
8.3.7.2 - Homemade tires, Foam tires, Silicon tires, Urethane tires, Ethyl Carbamate tires are
prohibited.
8.3.7.3 - Tire inserts are prohibited.
Other options
4 Make a class! Get a group together and submit your proposed rules to the staff at Coastal to run a class not listed.