1. What is the Recommended Turbo Size Calculation?

The Recommended Turbo Size calculation helps determine an appropriate turbocharger size for an engine based on its displacement and a performance multiplier. This provides a starting point for turbo selection.

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• \( Engine\ CC \) — Engine displacement in cubic centimeters
• \( Multiplier \) — Performance factor (typically 0.5-1.5)

Explanation: The equation converts engine displacement to liters (by dividing by 1000) and then applies a multiplier based on desired performance characteristics.

3. Importance of Proper Turbo Sizing

Details: Correct turbo sizing is crucial for achieving desired performance characteristics. An improperly sized turbo can lead to lag (too large) or insufficient boost (too small).

4. Using the Calculator

Tips: Enter engine displacement in cc and select an appropriate multiplier. Typical multipliers range from 0.5 (mild boost) to 1.5 (aggressive boost).

5. Frequently Asked Questions (FAQ)

Q1: What's a typical multiplier value?
A: For street applications, 0.5-0.8 is common. Race applications may use 1.0-1.5 or higher.

Q2: Does this account for engine modifications?
A: No, this is a basic calculation. Modified engines may require different sizing.

Q3: What about turbo response characteristics?
A: This calculation doesn't account for turbo response. Smaller turbos spool faster but may not flow enough at high RPM.

Q4: Should I consider other factors?
A: Yes, consider desired powerband, boost levels, and engine components when selecting a turbo.

Q5: Is this calculation suitable for all engine types?
A: It works best for conventional 4-stroke engines. 2-stroke or rotary engines may need different calculations.