Carburetor Size Needed
Dial in cfm for optimized performance!
Fill in the fields below, click calculate, and we’ll show you the optimal cfm for the street and track! The ratings are different because street engines have a volumetric efficiency around 85% while racing engines are closer to 110%.
| Maximum Engine RPM: | |
| Engine Size in Cubic Inches : | |
| Street Carb CFM : | |
| Racing Carb CFM : | |
Speedmaster Tools
Engine / Performance
- - Bore Size & Bore/Stroke Ratio
- - Carburetor Size Needed
- - Engine Size
- - Engine's Compression Ratio
- - Fuel Injector Flow from change in Fuel Pressure
- - HorsePower from Intake Airflow
- - Horsepower gain from adding Blower Pressure
- - Intake Airflow from Horsepower
- - Rod Stroke Ratio
- - Stroke Size
Rear Gear Requirements
- - Rear End Gear Ratio Needed
- - Speed from RPM, Rear & Trans. Gear Ratios
- - RPM from Speed, Rear & Trans. Gear Ratios
Drag Strip Performance
- - 1/8 Mile Horsepower Requirements from MPH
- - 1/8 Mile Horsepower Requirements from ET
- - 1/8 Mile ET from MPH
- - MPH - Km/H in 1/4 Mile using Horsepower
- - 1/4 Mile Horsepower Requirements from MPH
- - 1/4 Mile Horsepower Requirements from ET
- - 1/4 Mile ET from Horsepower
- - 1/4 Mile ET from MPH
- - MPH from 60 foot time