Power, Precision and Passion for Performance
The technical platform for people who tune and develop engines
PowerTunePro brings together calculation tools, engineering resources and practical knowledge to support the assessment, tuning and development of two-stroke and four-stroke engines, from people just starting to learn the fundamentals to experienced tuners.
Who it is for
- Enthusiasts
- Independent mechanics and tuners
- Engine builders
- Professional tuners
The future of PowerTunePro
Advanced tools, one for each engine type
PowerTunePro is developing a line of advanced technical tools, separated by engine type, to go beyond the free calculators. They are not yet available.
2T Two-stroke engines
Pro2T
In development · Not yet available
Advanced calculation and sizing tool for two-stroke engines.
4T Four-stroke engines
Pro4T
Planned · Not yet available
Advanced line for four-stroke engines, in the same technical direction. Scope and features have not been announced.
No release date has been set. Neither tool can be used or purchased at this time.
Available now
Free calculators
Independent tools, each on its own page, for calculating and comparing the original setup with the new one.
Displacement
Engine displacement from bore, stroke and number of cylinders.
Open calculatorR/L ratio
Crank radius (half the stroke) divided by connecting-rod length.
Open calculatorSprocket ratio
Final drive ratio and, optionally, chain length.
Open calculatorTires and rims
Compares tire sizes and the change in overall diameter and width.
Open comparator
Technical knowledge
Understanding the calculation matters as much as getting it
Tuning an engine takes more than a number: you need to know where it comes from, which measurements it depends on and what it means in practice. PowerTunePro brings together tools and technical knowledge to help you interpret, compare and decide with better judgment.
Calculate
Start from the real measurements of the assembly and obtain reference values.
Interpret
Understand what the result represents and where its limits lie.
Compare
Evaluate the original setup and the alternatives side by side before deciding.
The results are mathematical calculations based on the values you enter. They do not replace real measurements, manufacturing tolerances, the design of the assembly or the assessment of a qualified professional.
For every level
A platform that follows the technical growth of the people who use it
To understand the fundamentals
Relationships such as displacement, stroke and connecting rod, chain drive and tire dimensions, in direct, free-to-use tools.
To assess and develop
The platform is being expanded with advanced tools by engine type, aimed at more complex assessments. They are not yet available.
Tune with better judgment
Start with the tools that are already available. PowerTunePro keeps evolving.

