Race Classes

Future Champions National and International Rule Set

Chassis - Mini Z with kit radio only. 98mm wheelbase is highly recommended

Body - Hard body with lights and hard plastic windshield installed. Stock rear wing.

Motor/Pinion - White endbell motor with 6t pinion and stock spur gear

Upgrades

• Bearing Set

• Front Spring Set

• Carbon Rear Suspension Plate Set

• You may flip the king pins

Batteries - 4 cell NIMH

Tires – Any brand 8mm wide front, 11mm wide rear. Any rubber RCP use tire. No Foam. No Silicon.

Wheels – Any brand that fits standard Mini Z RWD

Hardbody | 2500kv | Fixed gear

Please review this class rules on the Rocky Mtn 1/28th Scale Alliance rules website.  You can also connect with other drivers at the Rocky Mtn 1/28th Scale Alliance Facebook Group.

Lexan | 3500kv | Fixed gear

Please review this class rules on the Rocky Mtn 1/28th Scale Alliance rules website.  You can also connect with other drivers at the Rocky Mtn 1/28th Scale Alliance Facebook Group.

Drivetrain:   Any

Body:  Any

Chassis: Any

Electronics:  Any

Motor:  Any

Gearing limit:  Any

Battery:  8.4v Charge limit

Wheels: Any

Tires: Open rubber tires. No silicone or foam tires

Dimensions: WxLxH  82x200x70mm max

Weight Limit:  None

Kyosho GT Masters is designed as a class for skilled drivers wishing to race at a lower performance level. Even though the motor is slower the intention is to increase competition for any given race. Therefore racers who wish to race in this class must demonstrate driving skill through qualifiers. There are 3 ways to gain entrance to this class. 

Ways to participate

1. Prequalify. Enter in Kyosho GT (Blue motor) and complete 26 laps in a qualifier or main.

2. Race. Enter Kyosho GT Masters (Green motor) prior to Jan 21 2022 and complete 26 laps in a qualifier or main.

3. Seeding race. These will take place prior to the first qualifier on a race night. You will be having a heads-up race with at least 3 cars on the track and must complete 26 laps. There will be no qualifying. There are no restrictions for a seed race, so 2 other previously qualified racers can run for the test.

Series qualifying

Instead of starting all over each race-day, results from the previous race are used to sort the qualifiers. 

• First week of competition will be random for the first qualifier with re-sorts for the remaining qualifiers and main. The final sort will determine the Mains. It will be possible to knock slower cars out of the higher main regardless of qualifying order.

• Starting with the second week and continuing, we will use previous week’s finishing order for the first heat (qualifier). Heats are in reverse order so the last place car is in the first heat with the fastest in the last heat. New racers will be put in the first heat. The remaining heats and main will be sorted based on best heat. It will be possible to knock slower cars out of the higher main regardless of heat order.

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Chassis: 

Kyosho Mini-Z chassis

Kyosho Narrow or Wide front end
90-98mm wheelbase

Electronics: 

Any radio

Open ICS settings

Motor:  

Brushless 4100kv (greeen) Kyosho only 

No brushed equivalent 

Gearing limit:

44/8 fixed gearing 

Differential:

Any gear or ball diff allowed

Battery:

4xAAA NiMh batteries

Body:

Autoscale preferred/White body assembled with all pieces, windows installed. Body reinforcement and bumpers are permitted. Clearance issues may be addressed, front splitters may be rounded. 

Wing:

Lexan rear wing is allowed. Wing height no more than 10mm

Wheels:

Any Mini-Z type wheels, plastic or aluminum

Tires:

Rubber tire of any company, no silicone or foam

Performance option parts: 

• Fixed lower front arm as in box stock. No Double A arm allowed. 

• Any upgrade that will fit on a stock Kyosho chassis without modification to the chassis itself. 

• No drilling of extra holes. 

• PN chassis are designed to be directly retrofit to any Kyosho build and are allowed.

• Any PN Rear Pod or damper setups are allowed. 

• Any R246/Kyosho rear pod or damper setups are allowed. 

• Bearings

• T-plates 

• wheelnuts

• servo gears

• springs

• kingpin flip

Weight Limit: 160g
Dimensions:  WxLxH  82x200x70mm max

Chassis:
1/28 rear 2WD solid axle, aka “live axle”

98mm max wheelbase

ESC:

NHX RC Mini 28 Pro (ESC MUST BE IN BLINKY MODE - NO BOOST, NO TIMING)

#NHX4007

NO GYRO

Motor:

NHX RC 2500kv Sensored

#NHX3010

Battery: 2S Li-Po

Gearing: 53T fixed gearing. The pinion size will be determined prior to the beginning of the next series.  Contact members in Slack for current configuration.

Body:

Any lexan body, light or standard weight

NO PANCAR – aka “wedge” or “doorstop” bodies

NO HARD BODIES

Wheel:

20mm max diameter, both front and rear

8.5mm max width front

11mm max width rear

Tires:

Any production rubber Mini-Z tires

NO SILICON, NO FOAM

Weight: NO MINIMUM WEIGHT LIMIT

Should someone purchase a motor made on a Friday, missing a winding that is demonstrably faster than the rest of the field, we will take reasonable action to remedy the situation, to maintain fair competition and race pace.

Drivetrain: RWD

Body: GL Lexan body, kit rear wing, aftermarket front wings with rollers allowed

Chassis: GL GLF1, 114mm wheelbase

Electronics: Hobbywing Mini28, no boost, no turbo and blinking

Motor: HRC 2500KV Sensored motor

Gearing: 53/10

Battery: 8.4V charging limit on a 2S lipo battery

Wheels and Tires: GL wheels and the tires from GL and Marka designed to fit them

Chassis:   98 - 102mm

Electronics: Sensor-less esc with no timing or boost: “blinky mode” operation

Battery: 2S 8.4v Lithium 

Motor:  2500kv Sensor-less 

“Bring Your Own” 2500kv must be within 5% of selected Spec motor
Event Manager will test/mark motors for kv/RPM prior to season start & as requested. 

Gearing limit: 10/53 pinion/spur

Body:  Mini-Z compatible purpose built hard body (Kyosho Autoscale, Jomurema GT01, TRP Mosler, Iwaver Firelap and GL…) with the hard plastic or lexan window inserts. All windows must be present. Bodies may be altered for wheelbase with a maximum wheel opening of 31mm measured horizontally. Wheel wells may be altered for tire clearance but the body must cover the tire viewed from above. Headlight buckets may be omitted but the lens must be in place (or covered by decal). Taillights should be installed. The rear bumper may be modified, but no higher than 18mm from the ground with the body installed. No other changes to the rear of the body are permitted. Small body parts may be omitted. Front splitters may be trimmed for track clearance. Body sides may be shaved if there is a track clearance issue. 

Wing: All wings original to the body are legal. Aftermarket or non original wings have a maximum height of 45mm from the ground or must not extend higher than roof line relative to chassis bottom plane (excluding extensive roof scoops, for example Kyosho NSX) or past widest point of body. This includes all parts of wing (side dams, etc...). Bodies which come original with the wing overhanging the body are exempt from the restriction of placing the wing within body limits.

Performance option parts:  Open

Wheels: Any Mini-Z type wheels, plastic or aluminum.

Front: 9 x 20mm max
Rear: 11 x 20mm max
Tires: Rubber tire of any company, no silicone or foam
Dimensions: WxLxH 82x200x70mm max

Tires: Any rubber RCP use tire. No Foam. No Silicon. 

Dimensions:  WxLxH  82x200x70mm max

Weight Limit:    160g (TBD)

Chassis:
1/28 rear 2WD solid axle, aka “live axle”

98mm max wheelbase

ESC:

Open
Blinky (No timing/boost)

Motor: 2500kv

Battery: 2S Li-Po

Gearing: 53T/12T fixed gearing

Body:

Any lexan body, light or standard weight

NO PANCAR – aka “wedge” or “doorstop” bodies

NO HARD BODIES

Wheel:

20mm max diameter, both front and rear

8.5mm max width front

11mm max width rear

Tires:

Any production rubber Mini-Z tires

NO SILICON, NO FOAM

Weight: NO MINIMUM WEIGHT LIMIT

Should someone purchase a motor/ESC made on a Friday, missing a winding that is demonstrably faster than the rest of the field, we will take reasonable action to remedy the situation, to maintain fair competition and race pace.

PN based rule set 23.09 - https://www.pnracing.com/pnwc/

Chassis:

Kyosho Mini-Z Racer MR01, MR015, MR02, MR03, Jomurema, GL Racing GLR, GLR-GT GL-GTR, MRC MR01, PNR2.5W, PNR3.0, RTRC RTA, Atomic MRZ MRZ Pro, NEXX Specter, Reflex RX28, G-Force Lightning and MWX R.1

GT Body 90mm-98mm wheel base only LM Body 102mm wheel base only.

Body:

Kyosho Mini-Z, TRP Scale and Jomurema GT01, GL 488 Lambo R8 911, Silver Horse Audi-R8 Sauber body only, full windshield and window must be installed, except for clearance, Lexan window and Lexan Roof allowed.

Motor:

Handout motor PN Brushless Sensored Anima 2500kv #170025WC, all motor comes with standard 14.5 rotor, and all motor will inspect by motor checker machine, make sure all motor running on same performance, and all motor will be sealed with security label, if the label removed or broken will be VOID.

The motor will be provided on the first practice day entry fee included one, and each class allows to purchase an extra one motor.

Fixed Gear ratio 64 Pitch 14 Pinion (#416414 or #426414 or MR2714WC Brown) / 53T Spur Gear (#MR2953WC Yellow or #MR2055-T53WC Yellow) ONLY

ESC:

OPEN any Sensored or Sensorless ESC.

Gyro and Receiver build in Gyro is not allowed.

Battery:

2S Li-Po battery, maximum 8.45V Additional battery for transponder allowed.

Option Parts:

Any aftermarket brand Mini-Z production parts allowed, any homemade parts, 3D print option parts and prototype parts not allowed.

Allowed 3D Print Transponder Holder, Body Side Clips, ESC Top Cover allowed.

Wheel:

All brand Plastic and Aluminum Mini-Z production wheel rims are allowed. Maximum front wheel width is 8.5mm. Maximum rear wheel width is 11mm. Maximum wheel diameter is 20mm. All wheel rims must be original design made for Mini-Z RACER, any modification is not allowed, any slot-car design wheel and 3D print wheel not allowed.

Tire:

Any Brand of Rubber Mini-Z production tire ONLY. Homemade tires, Foam tires, Silicon tires, Urethane tires, Ethyl Carbamate tires NOT allowed. No tire insert use. Traction compounds NOT allowed on tire or on race surface. Tire warmers are allowed. Tires may be cleaned with a 70% alcohol solution. If a driver uses tire cleaner that has been deemed illegal, the driver will be subject to any penalties that apply. Please address any questions concerning tire cleaners at the drivers meeting.

Minimum Weight: Whole car with everything 160g

Local Hobby and Kyosho International Class

Note to newcomers: The Kyosho EVO with the Xpeed 56 5600kv blue motor will be the best base platform for this class. Kyosho and R246 will allow this car to be run at any Kyosho sponsored event nationally or internationally.

Chassis: 

• Mini Z 4 Cell chassis type only.  

• Kyosho Narrow or Wide. 

• PN 2.5 with a T bar style rear pod. 

• 98mm wheelbase rear wheel drive

Any Radio and receiver: I.E. Evo chassis with a Futaba, Noble, Spectrum, Kyosho receiver.

Batteries: 4 cell NIMH.   No Lipo.

Motor:

• Brushless 5600kv (blue) Kyosho Xspeed 56 will be the benchmark. All other brands will be tested for kv rating.

• 50T brushless for cars being modified from box stock. Evo boards modified for brushed motors will NOT be allowed.

Gearing limit:

44/8 fixed gearing 

ESC Timing: Open ICS settings for Kyosho boards. No timing or turbo allowed for any other brand boards.

Body: 

• Hard body with lights and lexan or hard windshield installed. 

• Lexan rear wing is allowed. Wing height no more than 10mm unless the kit wing is larger.

Upgrades

• Any upgrade that will fit on a stock Kyosho chassis without modification to the chassis itself. 

• No drilling of extra holes. 

• PN chassis are designed to be directly retrofit to any Kyosho build and are allowed. 

• Any PN Rear Pod or damper setups are allowed. 

• Any R246/Kyosho rear pod or damper setups are allowed. 

• Any rear ball diff or gear diff allowed.

• Fixed lower front arm as in box stock. No Double A arm allowed.

Tires: 8mm wide front, 11mm wide rear. Any rubber RCP use tire. No Foam. No Silicon.

Drivetrain:    AWD, FWD

Body:  Touring style body, Lexan permitted

Chassis: Open, 90-102mm wheelbase

Electronics:  Open

Motor:  Open

Gearing limit:  15t pinion

Battery:  8.4v Charge limit

Wheels:    

Any Mini-Z type wheels, plastic or aluminum.

Front: 9 x 22mm max

Rear: 11 x 22mm max

Tires: Open rubber tires. No silicone or foam tires

Dimensions: WxLxH  82x200x70mm max

Weight Limit:  None

Chassis:   94 - 102mm RWD plastic chassis

Examples: Kyosho, PN 2.5 

Electronics:

Any radio

open ESC Timing

no turbo allowed 

Battery:  4xAAA NiMh

Motor:  Brushless 5600kv max 

Diff: Any diff allowed

Gearing limit: 

53/10 (5.3 FDR) for 64 pitch

44/8 (5.5 FDR) Kyosho gearing 

Body:  GT Hard body with headlight covers and hard plastic or lexan windshield installed. 

Wing: Lexan rear wing is allowed. Wing height no more than 10mm 

Performance option parts:  

Any vendor option part 

Double A arm front suspension allowed

Wheels: Any Mini-Z type wheels, plastic or aluminum.

    Front: 8mm max

    Rear: 14mm max

Tires: Any rubber RCP use tire. No Foam. No Silicon. 

Dimensions:  WxLxH  82x200x70mm max

Weight Limit:    160g

The Group C regulations, in force between 1982 and 1993, led to the production of legendary cars that wrote some of the most glorious pages in the history of the Le Mans 24 Hours and the Sports Car World Endurance Championship.  https://en.wikipedia.org/wiki/Group_C

Chassis: 

• Mini Z 4 Cell chassis type only.  

• Kyosho Wide. 

• 102mm wheelbase rear wheel drive

Any Radio and receiver: I.E. Evo chassis with a Futaba, Noble, Spectrum, Kyosho receiver.

Batteries: 4 cell NIMH.   No Lipo.

Motor:

• Brushless 5600kv (blue) Kyosho Xspeed 56 will be the benchmark. 

• 70 or 50 turn Brushed motors 

Gearing limit:

• 44/8 or 53/10 fixed gearing 

ESC Timing: Open ICS settings for Kyosho boards. No timing or turbo allowed for any other brand boards.

Body: 

• Hard body with lights and hard windshield installed. 

• Lexan rear wing is allowed. Wing height no more than 10mm unless the kit wing is larger.

Upgrades

• Any upgrade that will fit on a stock Kyosho chassis without modification to the chassis itself. 

• No drilling of extra holes. 

• PN chassis are designed to be directly retrofit to any Kyosho build and are allowed. 

• Any PN/NEXX Rear Pod or damper setups are allowed. 

• Any R246/Kyosho rear pod or damper setups are allowed. 

• Any rear ball diff or gear diff allowed.

• Fixed lower front arm as in box stock. No Double A arm allowed.

Tires: 8mm wide front, 11mm wide rear. Any rubber RCP use tire. No Foam. No Silicon.

Drivetrain: RWD

Body: Pan Lexan Style

Chassis: Open, 98mm wheelbase

Electronics:

Open, blinky mode.

No boost, no turbo.

Motor: 3500kv

Gearing limit: 10/53t 64p

Battery: 8.4v Charge limit

Wheels:

Front: 11 x 22mm max

Rear: 14 x 22mm max

Tires: Open rubber tires. No silicone or foam tires

Dimensions: WxLxH 82x200x70mm max

Weight Limit: None