RevLogic

Engine build calculator

Only for iPhone

Free · In‑App Purchases

iPhone

RevLogic – Engine Build Calculators Build smarter. Tune with confidence. RevLogic is the all-in-one engine calculator suite for racers, engine builders, mechanics, tuners, and performance enthusiasts. Whether you're building a two-stroke or four-stroke engine, RevLogic provides accurate, easy-to-use calculators to help you make informed decisions throughout your build. From basic engine specifications to advanced performance calculations, RevLogic helps eliminate guesswork and saves valuable time in the garage. Features • 50+ precision engine calculators • Support for both two-stroke and four-stroke engines • Save and organize your engine builds • Metric and Imperial unit support • Fast, clean, and intuitive interface • Instant calculations with accurate formulas • Export build summaries for reference Included Calculators Bottom End • Engine Displacement • Static Compression Ratio • Dynamic Compression Ratio • Piston Speed • Piston Ring Gap • Reciprocating Inertia • Crankshaft Bob Weight • Target Compression Ratio Solver Valvetrain • Cam Timing • Valve Size & Lift • Valve Spring Calculator Induction • Airflow / Carb CFM • Carburetor Venturi Size • Airflow to Horsepower Driveline • Gear Ratio & RPM • Final Drive Optimizer Performance • Quarter Mile Horsepower Estimator Cylinder Head • Port Shape Converter • Squish Area Calculator Fuel • Fuel Injector Sizing • Fuel Pump Sizing • Ethanol / E85 Blend Calculator Exhaust • Exhaust Header Calculator Tuning • AFR Target Table • Spark Advance Recommendations • Altitude Correction Forced Induction • Effective Compression Ratio • Boost Calculator Power Adders • Nitrous Calculator More calculators are added with every major update. RevLogic Lite Start for free with RevLogic Lite. Lite includes essential calculators and allows you to save one active engine build, making it perfect for hobbyists and first-time users. Upgrade to RevLogic Pro Unlock the full potential of RevLogic with Pro. Pro includes: • Access to every calculator • Unlimited saved engine builds • Advanced calculation tools • Detailed results and recommendations • Future premium features as they're released Whether you're building a street engine, race engine, kart, dirt bike, motorcycle, or custom project, RevLogic gives you the tools you need to build with confidence. Download RevLogic today and build smarter. Perform better.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

- Bug fix for the placeholder text in calculators

Version 26.1.112

The developer, RHEINEL ROI MANALO, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Usage Data

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • RHEINEL ROI MANALO
Size
  • 68.2 MB
Category
  • Utilities
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPod touch
    Requires iOS 15.0 or later.
Age Rating
16+
  • 16+
  • Learn More
  • Contains
    Unrestricted Web Access
    Advertising
    User-Generated Content
In-App Purchases
Yes
Copyright
  • © 2026 RCST Softwares
  • Developer Website
  • Privacy Policy