RacerRX User Guide
RacerRX is the AI setup and tuning app for RC racing. It keeps every setup and every car in the bag in one place, star-rated and searchable, and tells you what to change based on how the car drove. This guide covers the whole app, from your first car to community baselines and the built-in calculators.
Getting started
RacerRX runs on iOS and Android. Getting from a fresh install to your first saved setup takes a few minutes at the pit table.
Install RacerRX
Download it from the App Store or Google Play. One plan covers everything in the app, and it starts with a 14-day free trial. Details are under Plans and pricing.
Sign in
Open the app and sign in. Google Sign-In is supported. If Google Sign-In failed for you on an early build, update the app; the fix shipped in v1.12.21.
Add your first car
Every car you run gets its own entry, with its own setups and photos. When you add a car you fill in its make and model. The Model field is new in v1.12.21, and the make, model, and version ride along with any setup you share later.
There is no cap on cars. At the track you swipe between them, so the buggy and the late model never share a setup sheet.
Pick a template
Each car starts from a setup template built for its surface. There are three:
- Dirt Oval
- Carpet Oval
- Off Road
Surface types cover dirt, clay, carpet, and sand, and the setup fields flex to your chassis. If you cannot find a template that fits your class, request one and tell us what you run.
Your first setup
The loop is the same every race night.
- Log the run. Capture the setup at the pit table. Gears, ride heights, shocks, and toe all have their own fields.
- Rate it. Score how the car drove, 1 to 5, so the history means something later.
- Tune with AI. Ask the AI crew chief what to change before the next heat.
Setups and rounds
Every setup you have ever run lives here, star-rated and searchable. A race night is a set of stages, and each stage gets its own saved setup.
Baseline through Main
Each race night has four stages: Baseline, Round 1, Round 2, and Main. You start from a baseline, save what you ran in each round, and finish with the Main. Next time you are at that track you can see the whole night, not just where you ended up.
A race night, step by step
- Baseline. Open the car and start from your saved baseline. Log the track and the conditions before you roll out.
- Round 1. Save what you ran. Rate the run 1 to 5. Note the conditions for that round.
- Between rounds. Tell the AI crew chief how the car drove and what the track did. Try the change it suggests.
- Round 2. Save it, rate it, log conditions again. The change log shows what moved.
- Main. Save the final setup, rate it, and write your race recap notes while it is fresh.
Do that every night and the next trip to the same track starts with a rated history instead of a memory.
Save and star-rate every run
Save the setup for every round. Then rate the run 1 to 5. Ratings are what make the history useful: the setups that worked rise to the top, and a lucky run stops looking like a good one. Rate changes too, so the combos that keep scoring well are easy to find.
Search your history
Find any setup by track and car in seconds. Setups stay organized by track and by car, so the question "what did I run here last spring" has an answer instead of a guess.
Full setup view
Full View shows the complete setup on one screen. Since v1.12.21, community setups and baselines you have pulled in show up in Full View too, so you read a downloaded baseline the same way you read your own.
Change log
Each setup keeps a change log, so you can see what moved between rounds without comparing two sheets by eye.
Customizable pick lists
Fields that take a value from a list, like shock oils or springs, use pick lists you can edit. Put the parts you actually own in the list and logging gets faster.
Photos and image upload
Upload images to any setup. Photos are tied to the setup they belong to, not lost in the camera roll, and each car keeps its own. Tap any inline photo to zoom in.
Race recap notes
Write a recap on every race night. What the track did, what the car did, what you would try next. Recap notes stay with the setup so the next visit starts with context.
Baselines: save defaults, edit, and clone
A baseline is the setup you start a night from. Save default baselines for each car so a new race night opens with your known-good starting point already filled in.
Since v1.12.21 you can also edit and clone baselines: rename a baseline, or clone it into a new one and adjust from there. That is the quickest way to build a wet-track version of a dry-track baseline without retyping it.
Gear charts
Gear charts are built in, so ratio options are a tap away instead of a separate app. The spur and pinion selector under Calculators lets you pick from a table and save the choice to the setup.
AI Setup Assistant
The AI Setup Assistant is the crew chief in the app. Tell it the track and how the car drove, and it gives you concrete changes grounded in your own setup history. Then ask follow-ups like you would with a real crew chief. It speaks RC: sweepers, blue groove, heats, droop screws, and diffs, not full-size-car sentences.
Ask the AI
Open questions, any time. Track changed since your last visit? Ask what to adjust. The answer draws on the setups and ratings you have already logged, so it is about your car, not a generic RC car.
What to tell it
- Which track, and what the surface is doing.
- How the car drove: pushing in the sweepers, loose on power, tight off-power.
- What you changed since the last round, if the change log does not already say it.
Then ask follow-ups. It is a conversation, so "what if I go softer on the rear springs instead" is a fair next question.
Setup handling coach
Describe the handling and get suggested changes. Pushing in the sweepers, or loose on power? Tell the coach and it suggests what to move before the next heat.
Tuning guidance
Tuning guidance is built from your logged setups, not from a forum thread. The AI looks at what you ran, how you rated it, and what you are running now, then recommends specific changes to try.
Snap & Fill data entry
Snap & Fill turns a photo into setup data. Point the camera at a scale readout or a paper setup sheet and the AI fills the fields for you.
Snap the scale
- Set the car on the scale and photograph the readout.
- Snap & Fill fills all four corner weights and the totals.
- The cross-weight check totals the corners and flags an imbalance before the heat.
- The scale sheet is stored with the setup, searchable by track and car.
Since v1.12.21, Snap & Fill tells you which fields it could not read, so you know exactly what to type in by hand instead of hunting for blanks.
Lap time comparison
Log lap times with each setup and compare runs. A setup that felt good and a setup that was fast are not always the same setup, and the times settle the argument.
Compare setups (Coming Soon)
Put two setups side by side on one screen. This is on the way and is not in the app yet.
Gears and chassis
Gears, ride heights, shocks, and toe are logged the way RC cars actually tune, in structured fields, with the ratio math done for you.
Log gears and roll-out
Enter the pinion and spur and RacerRX saves the roll-out and the ratio math with the setup. No calculator app, no napkin.
Per-corner chassis
Ride heights, shock oils, springs, camber, and toe each have their own field, per corner. Because the fields are structured, the AI can read them and search can find them. A notes app has no idea what a diff or a droop screw is; RacerRX does.
Star-rate every change so the combinations that work rise to the top of the list.
The Model field
Added in v1.12.21, the Model field sits alongside make when you add a car. It matters most when you share: shared setups include your car's make, model, and version, so anyone downloading your baseline knows what it was built for.
Gear labels for chain-driven classes
If your class runs a chain instead of a spur and pinion, switch the gear labels. RacerRX lets you flip between Pinion/Spur and Front/Rear Sprocket so the sheet reads the way your car is built.
Calculators
Three calculators are built into the app. They are included in the plan, not a separate purchase.
RPM gear ratio
Work out gear ratio against RPM so you know what a gear change is going to do before you make it.
Spur and pinion selector
The dynamic spur and pinion selector shipped in v1.12.21. Pick your gears from a quick table and save them straight to the setup. It pairs with the built-in gear charts under Setups and rounds.
Weight distribution
Enter corner weights and see the distribution. If you use Snap & Fill on the scale, the corner weights are already in the setup and the cross-weight check runs at the same time.
Pre-race conditions
Log the track and conditions before every round, Baseline through Main, so next time you know whether it was the car or the track.
Conditions before every round
For each stage, capture the temp, the traction, and the layout. Conditions are saved with that stage's setup, so a Round 2 change is read against the Round 2 track, not a guess about what the surface was doing.
Surface templates
The conditions you log follow the template you chose for the car: dirt oval, carpet oval, or off-road. Start every night from the template built for your surface and the right fields are already there.
Community and sharing
Pull proven starting points from other racers, share your own, and swap setups with the people you race with.
Setup Baseline Marketplace
The Setup Baseline Marketplace arrived in v1.12.21. Browse baselines other racers have published and download one to start from. A downloaded baseline opens in Full View like any of your own.
Community Setups
Share your setups publicly or privately. Shared setups include your car's make, model, and version, so the racer downloading it knows what it fits. You can see view and download counts on community setups, which is a quick way to tell which baselines other people are actually using.
Peer-to-peer baselines
Swap baselines directly with another racer. Handy for a team running the same chassis, or for handing a new driver a known-good starting point instead of a photo of a setup sheet.
Email and print setups (Coming Soon)
Sending a setup by email or printing it is on the way. It is not in the app yet.
Plans and pricing
RacerRX has one plan, and everything is included. It costs $49.99 per year, or $4.99 per month billed monthly. It starts with a 14-day free trial and you can cancel anytime.
What is included
| Area | Included |
|---|---|
| Unlimited core | Cars, setups, races, tracks, baselines |
| Setup templates | Dirt Oval, Carpet Oval, Off Road |
| AI Setup Assistant | Tuning guidance, Snap & Fill data entry, lap time comparison, Ask the AI, setup handling coach |
| Setup tools | Customizable pick lists, image upload, change log, gear charts, race recap notes, save default baselines, full setup view |
| Calculators | RPM gear ratio, dynamic spur & pinion selector, weight distribution |
| Share and download | Community baselines, peer-to-peer baselines |
How to cancel
Cancel from your app store's subscription settings. There is no retention maze and no five-screen exit survey. A few days later we email one question: what is one thing we could have done to keep you as a customer? Reply or don't; you are canceled either way.
FAQ
Your account and data
Delete your account
You can request deletion of your RacerRX account and data at any time. Use the account deletion form and we will take care of it.
Privacy
How RaceYear handles your data is spelled out in the privacy policy.
Get RacerRX
RacerRX works for any class you run, dirt oval, off-road, or on-road, with surface types covering dirt, clay, carpet, and sand. It runs on iOS and Android.
Release notes for every version are on What's new.
Still need help?
If something is not working, or you cannot find the answer here, contact us. Telling us which app you are using, your device, and what you were doing when the problem happened helps us sort it out faster.
Missing a class template? Request a class template and tell us what you run.