Mini-Z Modder

Real Mods.
Real Laps.
Tiny Cars.

Upgrade guides, lap notes, and the parts I actually run.

Mini-Z pit setup with stripped MR-03 chassis, three body shells, tools, and transmitter on the bench
New to Mini-Z? Start with the basics -- we'll help you pick a platform and make your first mods count.

Latest Articles

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I Ran One Chassis for a Full Season. Here's What Actually Wore Out.

I tracked every part I touched on a single MR-03 over a full club season. The parts I worried about lasted. The cheap stuff is what bled me dry.

Buy Someone Else's Mistakes: The Case for the Used Mini-Z Market

The smartest money in Mini-Z isn't spent at the hobby shop. It's spent on the cars other people gave up on.

The Plateau Is Not Your Car's Fault

Most intermediate Mini-Z racers stall out and blame their setup. The truth is harder to hear and cheaper to fix.

Why Your Setup Doesn't Travel

Your car is perfect at your home track. Take it somewhere else and it drives like a different machine. That's not a mystery -- it's physics.

Most Popular Guides

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Race Day Reference Card

2-page printable cheat sheet. Tire compounds by surface, pre-race checklist, setup symptom/fix table, essential tool sizes. Lives in your pit bag.

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Session Setup Log

4-page printable log sheet. Baseline setup, per-run tracking with change/result fields, qualifying summary, session debrief, and pattern tracker. Print one per race night.

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Gear I Actually Run

Everything here is in my pit bag. Affiliate links, but I'd tell you if something sucked.

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Bearings

Fast Eddy Sealed Bearing Kit (MR-03)

Sealed bearings for the MR-03. What I run on mine. Drop-in replacement, sealed so they do not grit up.

Tires (Front)

PN Racing Mini-Z Slick Tires (Front)

What I run up front. Slicks give a cleaner bite off the carpet than the stock radials once tire prep is dialed in. Sold through RCMart; no Amazon.

Tires (Rear)

PN Racing Mini-Z Radial Tires (Rear)

What I run out back. Radials give forgiving rotation without breaking loose under power. Sold through RCMart; no Amazon.

T-Plate

Kyosho MZW404S Carbon Rear Suspension Plate

The Kyosho-branded carbon T-plate I run on the MR-03. Consistent flex, durable, fits the stock geometry without drama.

Body

Raybrig NSX Auto Scale Body

The Raybrig NSX is one of two bodies I run. Clean Super GT livery, looks right on an RCP track, wears predictably. Verify wheelbase before ordering.

Batteries

EBL 1100mAh AAA NiMH Rechargeable (6-pack)

What I actually run. 1100mAh AAA gives more runtime per charge than Eneloop at a lower price. Rotate two sets and they last forever.

Charger

ISDT N8 Smart Battery Charger (8-bay)

What sits on my bench. 8 bays means a full fleet charges at once, LCD shows individual cell state. Overkill for one car, perfect once you have a pit bag.

Tools

Stedi Model Nipper (Flush Cutter)

Ultra-thin sprue cutter. What I use for king pin flips, body mount trim, and anything that needs a clean cut instead of a crushed one. For files and rougher stuff, Harbor Freight works fine.

Top Guides This Month

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Browse by Platform

Pick Your Track

Mini-Z upgrade guides organized by where you are in the build path. Start where you are; move up when laps say you're ready.

Find Guides for Your Car

Browse upgrade guides and curated part picks for each Mini-Z platform and part category.

Browse by Part Type

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⚙️
Bearings
First mod · Universal upgrade
🏁
Tires
Compound · Width · Surface
🔩
Suspension
T-plates · Springs · Sway bars
Motors
Brushed · Brushless · Pinions
🚗
Bodies
Painted · Unpainted · Lexan
📡
Electronics
Gyro · ESC · Servo
📻
Transmitters & Receivers
Transmitters · Receivers · ASF
🔧
Tool Kits
Hex · Nut Drivers · Tweezers
🔋
Batteries & Chargers
NiMH · LiPo · Runtime