For FuelTech PowerFT tuners
Every hit in your log, averaged into your own breakpoints.
Fullsend Tuner Toolkit reads a FuelTech datalog, bins each sample into the exact axis values your ECU uses, and shows how far every cell sits from target — with the count behind it.
Small figures are hit counts. Cells under the minimum sample threshold stay unshaded — no data is not the same as on target.
You stay in control
Nothing is written until you run it.
The correction table is a suggestion sitting in its own layer. Nothing reaches your working map until you run the action that writes it, and you can edit any cell by hand before or after. There is no mode where the app changes your tune on its own, and there never will be.
Confidence is a feature
Every cell shows what it's built on.
Per-cell hit counts, sigma-based outlier rejection you set the threshold on, and a minimum sample count below which nothing is suggested at all. If a cell only saw four hits, you can see that it only saw four hits — so you can apply your own standard for how much data is enough before you trust a number.
- Cold engine
- Write a row filter against your coolant channel, in the log's own units.
- Throttle transients
- Derive a rate channel from TPS and filter on it — tip-in isn't steady state.
- Outliers
- Sigma rejection per cell, on a threshold you set, so one bad sample can't drag an average.
- Thin cells
- A minimum sample count per cell, below which nothing is suggested at all.
Works offline
Dyno bays and drag strips don't have wifi.
The app checks in once a day when it can, and runs normally for up to 44 days without a connection. Nothing about your session depends on reaching us.
Your files stay yours.
If your subscription ends the app goes read-only — you can still open, view and save your work. We think locking you out of your own tunes would be indefensible.