Nitrous Calculator

Nitrous Calculator

JD Tuning MVP – Dyno Laptop (Engines + KR)

JD Tuning Motorsports | Dyno Laptop MVP

Live Engine Data IDLE

RPM
Engine speed
900
Boost (psi)
Manifold pressure
0.0
AFR
Wideband
14.7
Timing (°)
Effective (Ign - KR)
12
IAT (°F)
Heat soak affects power
90
Coolant (°F)
Temp safety
180
Knock: 0
AFR: OK
IAT: OK
KR: 0.0°

Engine presets change redline, base behavior, and map baselines. Timing display is effective timing (commanded minus knock retard).

Calibration Fuel + Timing

Fuel Map (Trim)
Cell: —
Fuel trim is simplified: higher value = richer (lower AFR). Range: -5 to +5.
Ignition Map (°)
Cell: —
Commanded timing. Effective timing shown on left is (Ign - KR). Range: 6° to 26°.
Dyno Graph
Peak: —
Datalog
AFR / Boost / Ign / Trims / KR

Diagnostics MVP

Knock Report 0 events
Severity (0–100)
No knock detected.
Spark Plug Read

Run a dyno pull, then click “Inspect Spark Plug”.

Notebook Suggestions

Controls Dyno Session

Engine
Base Boost 18 psi
Octane / Fuel Quality 70
Closed Loop STFT 0% | LTFT 0%
Closed loop trims correct low-load only (boost < 1.5 psi). In boost, you’re mostly on the base fuel map. KR° is knock retard; effective timing displayed is (Ign - KR).

 

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