Home · The Tuning System
The Drag Racer's Tuning System
The free calculators tell you what a number is. The Tuning System remembers it, trends it, and turns it into the next decision. Everything runs in your browser, on your combo — no account, no subscription, one payment.
Tuning System
one-time · yours to keep
- Run logbook — every pass, searchable, printable
- DA / jetting tracker with trend view
- Gear & tire change planner (side-by-side)
- Converter & shift-point worksheets
- Built on your saved combo
How it works
- Pay once through Stripe
- You're sent straight to your system page — bookmark it
- Your data stays in your browser on your device
- Works at the track, offline, on any phone
The system page is yours permanently at its private address. Save it like you'd save a tool in the trailer.
Why not an app?
- No download, no updates, no app-store account
- Same page on phone, tablet and the shop PC
- Print any worksheet for the trailer wall
- Nothing uploaded — your combo and logs never leave your device
Inside the system
Included in the $39 Tuning System
Run Logbook
Every pass saved and searchable — ET, MPH, 60 ft, air and notes — in your browser, printable for the trailer wall. Spot the pattern in your own car instead of guessing.
Included in the $39 Tuning System
DA / Jetting Tracker
Log the air and your jet changes through the day and see the trend line. When the sun drops and the air gets good, you already know the move.
Included in the $39 Tuning System
Gear & Tire Change Planner
Two setups side by side — trap RPM, speed and shift landings for each — before you spend a dollar on parts.
Included in the $39 Tuning System
Converter & Shift Worksheets
Guided worksheets that turn the free calculators into a decision: is the converter right, and where should this engine really be shifted?
Add a racer pack — $29 each
Bracket & Index Pack
one-time
- Dial-in worksheet from your runs
- Weather-move predictor
- Throttle-stop calibration worksheet
- Round tracker
E85 Tuning Pack
one-time
- Blend solver for target ethanol %
- Gas → E85 jetting delta worksheet
- E85 fuel-system sizing
- Ethanol content test log
Nitrous Jetting Pack
one-time
- Bottle pressure ↔ temperature chart
- Jet spread worksheet & log
- Safety checklists, pressure-first
Straight answers
Is the math different from the free calculators? No — and that's the point. The free library stays free and complete. What you pay for is memory and workflow: logging, trending, comparing, planning.
Where does my data live? In your browser, on your device (localStorage). We never see your runs, your combo or your logs. The trade-off: clear your browser data and it's gone — print or export your important sheets.
Does it work without signal? Yes. Once the page has loaded on your device, the tools run offline — handy in a steel trailer at a rural strip.