Your crew chief.
In your pocket.

TuneChief reads the air, calls your dial, analyzes your Holley datalogs, and finds the money races — no laptop, no $2,000 weather station.

Built by racers at Texas tracks · Dialed in for every round
Density Altitude · Texas Motorplex
2,340
GOOD AIR · FT
🎧 THE CHIEF
How it works

From the lanes to the win light

STEP 1

Read the air

Live weather for any track — density altitude, water grains, and air density, corrected for elevation. No hardware.

STEP 2

Get the call

The AI Chief knows your car, your runs, and your setup. It predicts your ET and MPH, calls your dial, and tells you what to change between rounds.

STEP 3

Turn on the win light

Log the pass with the air and shock clicks snapshotted automatically. Every run makes your next prediction sharper.

What's inside

Everything the big trailers have. None of the hardware.

🎧

AI Crew Chief

Ask it anything, in plain English. It answers with your car, today's air, and your run history in mind.

📊

Holley datalog analysis

Upload your CSV log. It reads AFR, IAT, timing, and knock — and tells you what happened on the pass.

💰

Purse race alerts

An agent scans your tracks' schedules and flags races with money on the line before you'd have heard about them.

🏁

Race day mode

Round-by-round logging, live win/loss record, and air-drift dial calls between rounds.

🎯

Predictions & dial-in

ET and MPH prediction that learns your car from your own passes, plus a dial-in with your safety pad.

🔧

Full setup logbook

Shocks, ride heights, weight split, boost ramp — snapshotted onto every run so you can see what worked.

Pricing

Less than one entry fee. All season long.

🏁 The Chief rides shotgun. You take the win light.
🔥 FOUNDER 100 — $199 $149/yr locked for life
First 100 racers only · 100 of 100 spots left. Full Crew Chief features — price frozen forever.
Claim founder pricing

RACER

$199/yr
or $24.99/mo · 1 car
  • Unlimited AI Crew Chief
  • Live air, density altitude & ET/MPH predictions
  • Time slips + boost-ramp tools
  • Race day mode + dial coaching
Get Racer
MOST POPULAR

CREW CHIEF

$349/yr
or $39/mo · up to 2 cars
  • Everything in Racer — for 2 cars
  • Datalog analysis — Holley · FuelTech · Haltech
  • Priority purse-race alerts
  • Advanced multi-run slip compare
Get Crew Chief

PRO / TEAM

$549/yr
up to 4 cars
  • Everything in Crew Chief — for 4 cars
  • Team & multi-car sharing
  • Every feature unlocked
  • Best value per car
Get Pro
🎟️ WEEKEND PASS — $29.99
Racing one weekend? Full Chief access for 4 days · 1 car · one-time, nothing to cancel.
Get the Weekend Pass
Cancel your subscription anytime. Applicable sales tax added at checkout.
Founder access

First 100 racers lock in $149/yr. For life.

Drop your email and you're on the list for the beta — plus founder pricing locked in when we launch.

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No spam. Race stuff only. Unsubscribe anytime.
How to run it

Getting the most out of the Chief

TuneChief gets sharper the more you feed it. Here's the routine that gets racers dialed fastest.

SETUP · ONCE

Build your car profile first

Before your first pass, fill in the car. The Chief's predictions are only as good as what it knows about the combo.

  • Weight with driver, engine, power adder, converter or clutch
  • Gear ratio, tire size, and your home track
  • Your best-known ET and MPH as a baseline
EVERY PASS

Log the run — even the bad ones

Every logged pass tightens the model. Scrubbed runs, red lights, and dropped cylinders teach it just as much as clean ones.

  • Log within a few minutes so the air snapshot matches the run
  • Enter the full slip — 60-ft, all splits, MPH
  • Note anything you changed: shocks, boost, launch RPM
RACE DAY

Check the air between rounds

Air moves more between round two and round four than most racers expect. Pull the Chief up in the lanes, not in the pits an hour earlier.

  • Open Race Day mode when you unload
  • Re-check DA before every round — take the dial it calls
  • Tell it your round result so it corrects on the fly
DATALOGS

Upload the log after a questionable pass

If the car ran off its number, hand the Chief the log. It reads AFR, IAT, timing, and knock, and tells you what happened before you start guessing.

  • Export the CSV from Holley, FuelTech, or Haltech
  • Upload it attached to that run so it has the air too
  • Ask follow-ups in plain English — it keeps the log in mind
Talk to it like your crew chief, not a search bar. "Car went .03 slow last round and picked up 2 mph — what changed?" gets you a real answer. "drag racing tips" doesn't. It already knows your car, your passes, and today's air, so skip the setup and ask the actual question.
FAQ

Straight answers

Do I need a weather station?
No. That's the point. TuneChief pulls live weather for your track and corrects it for elevation to give you density altitude, grains of water, and air density. If you already own a station, you can still enter its numbers manually and the Chief will use yours.
How many passes before the predictions get good?
You'll get a usable call from your baseline alone. It tightens up once you've logged a handful of passes across different air, and it keeps improving from there. Runs in hot, thin air are worth the most — that's where the model learns how your combo reacts.
What does it do that a DA app doesn't?
A DA app gives you a number. The Chief gives you the call — your predicted ET and MPH for that number, based on your car and your own passes, plus what to change between rounds. Then it reads your datalogs and flags the money races on your tracks' schedules.
Which datalogs can it read?
Holley, FuelTech, and Haltech CSV exports on the Crew Chief plan and up. Export the log from your software as CSV and upload it — no conversion needed. Not affiliated with or endorsed by any of those companies.
Does it work at any track?
Yes — anywhere with weather coverage, which is effectively every strip in the U.S. Set your home track for one-tap access, and search for any other track when you travel.
Bracket racer or heads-up?
Both. Bracket racers lean on the dial calls, air drift between rounds, and the safety pad. Heads-up and index racers lean on the ET/MPH prediction and datalog analysis to find what the combo left on the table.
Does it work on my phone in the lanes?
It's built phone-first — it installs to your home screen and opens like an app. Everything you need on race day is a couple taps deep, one-handed, in the sun.
Can I run more than one car?
Racer covers one car. Crew Chief covers two, Pro/Team covers four, each with its own profile, run history, and predictions. Cars don't share data, so a change to one never skews the other's numbers.
What if the Chief's call is wrong?
Log the actual result and it corrects. The Chief makes the call — you make the decision. Treat it like a crew chief with good instincts and a lot of data, not an autopilot. Your tuning and racing decisions are always your own.
Can I cancel?
Anytime, right from your account. Founder 100 pricing stays locked for life as long as the subscription stays active.

Still got a question? sales@tunechief.com — a human answers.