Throttle Body Calculator
Calculate optimal throttle body size for your engine
Engine Details
Recommended TB Size
52 mm
547 CFM required
Calculations
Optimal Diameter50.7 mm / 1.99"
Optimal Area3.13 sq in
CFM Required547 CFM
Size Comparison
70mm TB Flow1044 CFM
80mm TB Flow1363 CFM
90mm TB Flow1726 CFM
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.