MOTORUN ENGINE TOOLS - PRO v5.1.3
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About this app
Boost 4/2-stroke engines with MOTORUN PRO, great for racers & daily use
MOTORUN ENGINE TOOLS PRO is an advanced tool for redesigning 4-stroke and 2-stroke engines, ideal for racers and daily modification enthusiasts. This tool provides precise calculations to enhance performance, from engine volume, camshaft, compression ratio, piston speed, to carburetor adjustments and racing exhausts.
4-Stroke Calculator Features:
🔥 Engine volume, duration, LSA, overlapping
🔥 Porting Polish, valves, lift, and diameter
🔥 Shim selection, compression ratios, piston speed
🔥 Safe RPM limits, ideal venturi size, reamer
🔥 Acceleration, potential top speed, final gear ratio
2-Stroke Calculator Features:
🔥 Engine volume capacity, dynamic compression ratio
🔥 Clearances, piston ring gap, head squish
🔥 Engine duration, porting, piston speed
🔥 Carburetor size, acceleration, potential top speed
MOTORUN ENGINE TOOLS PRO is an essential tool for anyone looking to effectively and efficiently optimize engine performance.
4-Stroke Calculator Features:
🔥 Engine volume, duration, LSA, overlapping
🔥 Porting Polish, valves, lift, and diameter
🔥 Shim selection, compression ratios, piston speed
🔥 Safe RPM limits, ideal venturi size, reamer
🔥 Acceleration, potential top speed, final gear ratio
2-Stroke Calculator Features:
🔥 Engine volume capacity, dynamic compression ratio
🔥 Clearances, piston ring gap, head squish
🔥 Engine duration, porting, piston speed
🔥 Carburetor size, acceleration, potential top speed
MOTORUN ENGINE TOOLS PRO is an essential tool for anyone looking to effectively and efficiently optimize engine performance.
Version Information
- Version
- 5.1.3
- Downloads
- 500K+
- Updated on
- Aug 22, 2025
- Released
- Oct 16, 2019
- Requires
- Android 7.0
What's New
- Restored support for the following languages: Thai, Filipino, Vietnamese, Hindi, Malay, Greek, Portuguese, French, Spanish, Indonesian
- Added support for the Spanish language
- Added static crankshaft balance calculation feature
- Added rounded rectangle calculation for intake porting
- Added support for the Spanish language
- Added static crankshaft balance calculation feature
- Added rounded rectangle calculation for intake porting
Ratings & Reviews
Developer Response