Built for Renesis Engine Tuners

Precision Rotary
Engine Analytics

Upload your VersaTuner datalogs and instantly get automated MAF scaling, VE matrix calculations, and real-time intake port actuation verification for your RX-8.

Start AnalyzingSee how it works
RenesisLab dashboard showing rotary engine telemetry analysis

Three Steps to Better Tunes

From raw datalog to VersaTuner-ready calibration tables in minutes.

Step 1

Upload Datalog

Drag and drop your VersaTuner CSV file. The parser automatically maps headers, handles irregular formats, and validates every field.

Step 2

Analyze & Visualize

See time-series overlays, MAF correction curves, and VE heatmaps instantly. Lean anomalies at 4,500 RPM? Flagged automatically.

Step 3

Export to VersaTuner

Copy calculated MAF and VE values directly into your tune. Tab-delimited output matches VersaTuner's map editor format exactly.

Built for the Renesis

Every feature is purpose-built for the unique characteristics of the 13B-MSP rotary engine.

MAF Calibration

Automated 2D MAF scaling with 0.02V voltage bins. Filters for steady closed-loop conditions and calculates correction factors from combined fuel trims.

VE Matrix

3D volumetric efficiency grid — 500 RPM × 10% load intervals spanning up to 250% for forced induction. Lean anomaly detection built in.

Port Actuation Overlays

SSV transition at 3,750 RPM and auxiliary port zone at 4,500–5,000 RPM visualized directly on your timeline charts.

Smart CSV Parsing

Drag and drop any VersaTuner CSV — case-insensitive header mapping handles format variations automatically. Missing columns are flagged instantly.

Secure & Private

Row-level security ensures your data is yours alone. Google OAuth and email auth supported. Data never shared.

VersaTuner Export

One-click export to tab-delimited format. Copy your corrected MAF curve or VE table directly into your tune file.

Setup Guide

What to Log in VersaTuner

Add these PIDs to your VersaTuner logging profile to get the most out of RenesisLab.

Required PIDs

Must be included in every log

Engine RPM— Eccentric shaft speed
Calculated Load (%)— Rotor chamber filling density
MAF Voltage (V)— Raw mass airflow sensor reading
MAF (g/s)— Air mass flow rate
Actual Lambda (λ)— Wideband O2 exhaust reading
Desired Lambda (λ)— Target lambda from ECU maps
Short Term Fuel Trim (%)— Immediate fuel correction
Long Term Fuel Trim (%)— Learned fuel offset
Engine Coolant Temp (°C)— Thermal monitoring
Intake Air Temp (°C)— Charge air density
MAP (kPa)— Manifold absolute pressure
Throttle Position (%)— Throttle blade position

Optional Advanced PIDs

Extra insight when available

STFT Secondary (%)— Secondary O2 sensor trim
Accelerator Pedal Position (%)— Driver pedal request
Ignition Timing Leading (deg)— Leading spark advance
Ignition Split Angle (deg)— Leading-to-trailing separation
OMP Steps— Oil metering pump injection rate

Tip: Advanced PIDs unlock overlay traces on the timeline chart — great for diagnosing ignition timing, oil delivery, and secondary injector behavior. Files without them still work perfectly for MAF and VE analysis.

Ready to Dial In Your Tune?

Upload your first datalog and see the difference precision analytics makes.

Get Started