MRT
MOTORACETUNE
v2.5.4 · WIN

A workshop tool. Wired like one.

Every feature is here because a tuner asked for it — on the bench or at the OBD port. No growth-hacked dashboards. No AI-suggested fuel maps.

Every map the factory writes, exposed.

Grouped exactly like the workshop manuals — fuel and ignition first, then everything else, then the unsexy settings.

0x4000
Fuel
  • Main fuel · TPS+000
  • Main fuel · IAP+040
  • Cold start enrich+080
  • Acceleration enrich+0C0
  • O2 trim+100
  • Cyl 1–4 trim+140
0x5200
Ignition
  • Main ign · TPS+000
  • Main ign · MAP+040
  • Knock retard+080
  • Idle ign+0C0
  • Cold ign trim+100
  • Per-cyl trim+140
0x6800
Other
  • Target lambda+000
  • Idle target+040
  • Fan thresholds+080
  • Secondary throttle+0C0
  • PAIR system+100
  • Rev limiter+140
0x7F00
Settings
  • VIN+000
  • Immobilizer+040
  • Gear ratios+080
  • Speed limit+0C0
  • Service intervals+100
  • Country+140

From bench to flash, in one window.

Identify the ECU, pull the ROM, edit it, diff every cell before you flash. Every step lives in the same window — no file shuffling, no second tools, no cloud round-trip per keystroke.

DIE SHOT · 0x01IDENTIFY

Identify the bike on the wire

Plug into the OBD-II port or your bench harness, hit Identify. The app reads the part number, the chip family, and the bike's market off the ECU itself. The Operations panel only shows actions this specific ECU will accept — no buttons that aren't real.

DIE SHOT · 0x02HEATMAP

Read it like a workshop manual

Every map opens as a colour-graded heatmap. Switch between raw values, %trim, or Δ delta. Cells run red where they are high, blue where they are low — the pattern reads first, the numbers read second.

DIE SHOT · 0x03SURFACE

Or as a surface, if that is how you read them

Same data, rotated. The 3D view exposes ridges and dips that flatten out in a table — useful for locating peaks and troughs at a glance.

DIE SHOT · 0x04DELTA

Every edit is accountable

Switch the colour mode to Delta. Cells you have touched light up; cells you haven't stay flat. If your change isn't visible in this view, it isn't going on the bike.

Five fuses between your edit and the bike.

F1
Hash-checked working copy
F2
Byte-level diff vs factory
F3
Map-level visual diff
F4
Confirmation step requires re-typing the part number
F5
Auto-saved snapshots before each write