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` = f( "c" , "d" , h ) `

Enter a value for all fields

The** Chamfer Volume** calculator computes the volume of a chamfer based on the inner diameter, top width, chamfer height.

**INSTRUCTIONS**: Choose units and enter the following:

- (
**d**) Inner Diameter - (
**c**) Top Width - (
**h**) Chamfer Depth

**Volume of a Chamfer (V):** The calculator returns the volume in cubic millimeters (mm^{3}). However, this can be automatically converted to compatible units via the pull-down menu.

A piston chamfer is the bevel cut into the top of the block around the piston bore. It allows the rings to be more easily inserted in the cylinder.

Some engine manuals calculate the chamfer volume differently. They take the difference of the diameters (bore and piston), multiply that difference by the circumference of the bore to create the surface area of the chamfer and then multiply that surface area by the depth of the chamfer to get twice the volume. The author disagrees with those manuals, because they are geometrically wrong (just like the piston crevice formula). Without the piston bore, the bevel is an upside-down frustum of a cone. To get the chamfer volume, you calculate the volume of that cone frustum, and then remove (subtract) the volume of the cylinder that would be in that frustum. This equation does that.

Inch Equivalences |
|||

Fraction | Decimal | Mils | |

1/16^{th} |
0.0625 | 62.5 | |

1/32^{th} |
0.03125 | 31.25 | |

1/64^{th} |
0.015625 | 15.625 |

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**Cylinder Bore Diameter**based on the engine displacement, number of cylinders and the stroke length.**Bore Stroke Ratio**based on the diameter of the bore and the length of the stroke.**Combustion Ratio**base on the minimum and maximum displacements of the cylinder at the beginning (1-Induction) and compressed (3-Power) portions of the combustion cycle**Displacement Ratio**based on the volumes at the beginning and end of the stroke.**Rod and Stroke Length Ratio**base on the two lengths.**Stroke Length**based on the total engine displacement, number of cylinders and the bore.**Piston Position**based on the crank angle, crank radius, and rod length.**Total Volume (displacement) of a Combustion Engine**based on the bore, stroke and number of cylinders.**Volume (displacement) of a Engine Cylinder**based on the bore and stroke.**Volume (displacement) of an Engine with an Overbore**based on the stroke, bore, overbore and number of cylinders.**Equivalent Volume of a Rotary Engine**based on the swept volume and number of pistons.**Compressed Volume of a Cylinder**when the piston is at the end of the stroke and the chamber is at its smallest (and most compressed) volume, based on the chamber, deck, crevice, chamfer, gasket, valve relief and dome/dish volumes. This is the second volume (V2) in the Compression Ratio**calculation.****Volume of a Gasket**based on the inner and outer diameters and the gasket's thickness.**Volume of a Cylinder Deck**based on the deck height and the bore.**Volume of a Cylinder Crevice**based on the piston diameter, cylinder bore and the crevice height.**Volume of a Cylinder Chamfer**based on the cylinder diameter and the chamfer height and width.**Piston Speed (mean) based on stroke length and RPMs.****Max Piston Speed based on stroke length and RPMs****RPMs based on desired piston speed and stroke length**.

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- Camber Offset
- Breakover angle - Ground clearance between axles
- Approach angle - Ground clearance in front of or behind vehicle.
**Belt Length****Belt Speed**.**Pulley RPMs****2nd Pulley RPMs****2nd Pulley Diameter****RPM of 4th pulley on three shafts****2nd Gear RPM**