Wisconsin Street Dominators

Performance Calculators

RPM calculator

Gear Ratio	Tire Radius	MPH

	RPM =

CFM needed

Engine size (cid)	Max RPM	Volumetric Efficiency *

	CFM Needed =

* 1.0 is a good estimate for a mild performance engine

Horsepower From MPH Calculation:

1/4 Mile Speed (mph)	Vehicle Weight (lbs.)		Horsepower

Liter/CID Conversions:

Liters Cubic Inches

Displacement Calculation:

Bore Stroke # of Cylinders

CID=

Miles per Gallon:

Miles
Travelled Gallons
Used Miles Per Gallon

Kilometers per Liter:

Kilometers
Travelled Liters
Used Kms Per Liter

Calculate Engine's Compression Ratio (CR)
Enter Input Unit Type 1=inches 2=mm :
Enter Bore size:
Enter Stroke size:
Enter Head Gasket Bore size:
Enter Compressed Head Gasket Thickness:
Enter Combustion Chamber Volume in CC's:
Enter Piston Dome Volume in CC's use "-" for Dished Pistons:
Enter Piston Deck Clearance If ABOVE deck use "-" :

Compression Ratio: :1 Total Volume: cc

Calculate CR from ALL inputs except Total Volume
Calculate Total Volume from Bore, Stroke, and CR -- this is the volume measured with piston ATDC and the head with gasket installed, and valves closed
Calculate Combustion Chamber Volume from ALL inputs except Combustion Chamber Volume and Total Volume

1/4 Mile to 1/8 Mile ET Conversion
Enter your 1/8 Mile ET or 1/4 Mile ET

Enter your 1/8 ET:

Your 1/4 Mile ET is:

Enter your 1/4 ET:

Your 1/8 Mile ET is:

Enter the ¼ Mile ET or the 1/8 Mile ET and
Click on Calculate...

FORMULA:
¼ Mile ET = (1/8 Mile ET + .22) / .655
1/8 Mile ET = (¼ Mile ET * .655) - .22

Conversion Chart

Cubic Inches (ci)				Liters (L)

Cubic Inches (ci)				Cubic Centimeters (cc)

Inches (in)				Centimeters (cm)

Foot Pounds (ft-lbs)				Inch Pounds (in-lbs)

Miles (mi)				Kilometers (km)

Ounces (oz)				Grams (g)

Miles per Hour (mph)				Kilometers per Hour (kph)

Degrees Fahrenheit (F)				Degrees Celcius (C)

All times are GMT -5. The time now is 01:10 PM.

RPM calculator

CFM needed

Horsepower From MPH Calculation:

Liter/CID Conversions:

Displacement Calculation:

Miles per Gallon:

Kilometers per Liter:

Calculate Engine's Compression Ratio (CR)

Estimate MPH from 60 foot time