MOTORUN ENGINE TOOLS - PRO

Optimize 4/2-stroke engines with MOTORUN PRO, ideal for racers & daily use

MOTORUN ENGINE TOOLS PRO: Advanced 4-Stroke and 2-Stroke Engine Calculator

This comprehensive tool is designed to streamline and simplify the complex calculations involved in modifying both 4-stroke and 2-stroke engines. It's an invaluable resource for enthusiasts in the motorbike racing community as well as for everyday users seeking to enhance their engine's performance.

Features of the 4-Stroke Calculator:

Engine Volume Analysis

Camshaft Optimization:

Duration Adjustments

Lobe Separation Angle (LSA)

Overlap Tuning

Polish Porting Techniques:

For 2-Valve Engines (Methods 1 and 2)

For 4-Valve Engines

Valve Adjustments:

Lift Settings

Diameter Specifications

Shim Selection Guide

Compression Ratio Calculations:

Static Ratio

Dynamic Ratio

Effective Stroke Determination

Piston Speed Analysis

Safe RPM Limits for Engine Longevity

Carburetor Tuning:

4-Stroke Ventures

Ideal Size Determination (Methods 1 and 2)

Reamer Usage

Racing Exhaust (Knalpot Racing) Configurations

Acceleration and Top Speed Potential:

Estimation of Top Speed

Wheel Outer Diameter Impact

Final Gear Ratio Effects

Estimation of Potential Torque and Power (DK)

Features of the 2-Stroke Calculator:

Engine Volume Capacity Analysis

Compression Ratio Calculations:

Compression Ratio

Fuel Mixture Ratio

Clearance Settings:

Deck Clearance

Piston Clearance

Piston Ring Gap

Head Squish Adjustments:

Angle Settings

Width Measurements

Engine Timing and Duration:

Inlet

Exhaust

Transfer

Porting Techniques

Piston Speed Analysis

Safe Engine Rotation Speed Limits

Carburetor Size Optimization

Acceleration and Top Speed Potential:

Estimation of Top Speed

Wheel Outer Diameter Impact

Final Gear Ratio Effects