Race-day tuning decisions,backed by real calculations.
BlownLogic is tuning and prediction software built for blown alcohol drag racing. Combo-aware, weather-corrected logic—so you can make confident decisions at the track.
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Read privacy policyBlown alcohol drag racing software for fuel, timing, boost, and run analysis
Built for racers who need weather-corrected calculations, setup-aware predictions, and clear pass-to-pass comparisons without spreadsheets.
Blown Alcohol Fuel System Calculator
Predict current flow, fuel pressure, loop flow, nozzle split, and recommended main pill from your combo and weather.
Weather-Corrected Tune Predictions
Use air temperature, humidity, station pressure, dew point, grains, and corrected altitude to adjust race-day decisions.
Boost Prediction and Supercharger Analysis
Calculate blower drive ratio, predicted boost, theoretical boost, and slip from your overdrive, combo, and barometer.
Timing Guidance for First Passes
Generate conservative timing targets and compare predicted timing with actual timing and best-ET baselines.
Run Logging and Pass Comparison
Track runs, weather, setup changes, ET, MPH, and notes so you can compare passes and see what actually changed performance.
Parts Room and Combo Tracking
Store vehicles, engine combos, installed parts, service intervals, and event-based run history in one system.
One plan. Straightforward pricing.
14-day free trial, then $15.99/month. Cancel anytime.
$15.99 / month
Cancel anytime during the trial.
FAQ
Questions or feedback?
Send a note if you have a question, run into an issue, or want to share feedback.