🏁 Cobb Protuner Since 2008

M-Tuned's Online Dyno

Upload a datalog from a pull you already did and see the power and torque your car is putting down. No dyno booking, no fee.

Upload a datalog and this reads it the way a dyno operator would — working out the power and torque your car is actually putting down, from the pull you just did on the road. Free to use, no account needed.

How it works

  1. Do a pull and save the log. Third or fourth gear, flat road, full throttle from about 2,500 RPM to redline.
  2. Upload the CSV. We scan it and find every wide-open-throttle pull in the file.
  3. Pick your run. Analyse one, or overlay several to compare — 93 against E85, before against after.
  4. Read the chart. Power, torque and boost across the RPM range, corrected for the weather in your log. Download it or send it to Mike.

What you need

  • A datalog in CSV form — Cobb Accessport is what most people use. Needs RPM, throttle, vehicle speed and time in the file.
  • One real pull in it. At least 95% throttle, above 2,000 RPM, held for 3 seconds or more, covering at least 1,000 RPM. Lift early and that run won't count.
  • Your car's details. Vehicle, mod level, fuel, weight, driver weight and the gear you pulled in — the maths needs all six.
  • Nothing else. No account, no software, no cost. Weather correction is read straight out of the log.

Upload Datalog

CSV format from Cobb Accessport

Virtual Dyno — Beta

This tool is still being developed and calibrated. Some vehicles, gears, and datalogs can produce inaccurate results. Treat the numbers as a well-informed estimate, not a replacement for a real dyno pull.

📊
Drop Your Log Here
or click to select file
🚗 Vehicle Setup
⚙️ Pull Settings
⚖️ Weight Auto-filled with a base-trim estimate — trims vary, so enter your car's real weight if you know it
🌡️ SAE Correction ▼
📋 HOW TO GET ACCURATE RESULTS
1 Full Throttle Only: Hold throttle at 100% from 2500+ RPM to redline. Any lift will end the run early.
2 Use 3rd or 4th Gear: Lower gears cause clutch slip. Higher gears accelerate too slowly for accurate readings.
3 Flat Road Required: Hills skew results. Uphill shows less power, downhill shows inflated numbers.
4 Enter Correct Weight: Include driver, passengers, fuel, and cargo. Every 100 lbs = ~3-5 HP difference.
5 Multiple Runs Detected: We find all valid pulls in your log. Pick your best run or compare them all.
6 Verify Tire Size: Wrong tire diameter = wrong speed = wrong HP. Enable auto-detect to check yours.
7 Weather Matters: Hot air = less power. Enable SAE correction to normalize for temperature and altitude.
Analyzing Performance
○ Parsing datalog structure
○ Detecting pull sequences
○ Calculating physics model
○ Applying SAE corrections
○ Generating dyno curves

Performance Analysis

Measured from your datalog

Results are estimates — Beta

The virtual dyno is still under active development. Certain vehicles, gear selections, or noisy logs can skew horsepower and torque. If a curve looks wrong, tell us and we'll dig in.

✓
Peak Performance
0 WHP
Current output
⚡
Boost Pressure
0 PSI
Peak boost measured in this pull
⛽
Fuel System
0%
Fuel trim adaptation within specifications

Tune Health Report

Overall Tune Health

⚡ Advanced Knock Analysis

Intercooler Thermal Performance

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