![]() 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.Bore Stroke Ratio based on the diameter of the bore and the length of the stroke.Cylinder Bore Diameter based on the engine displacement, number of cylinders and the stroke length.( V 2) Combustion chamber volume (aka clearance or compression volume)Ĭompression Ratio: The calculator returns the Compression Ratio (CR).INSTRUCTIONS: Choose units (default is cubic inches), and enter the following: For example, if you have a 64cc head chamber and a cylinder head gasket displacement of 9.2 ccs, then in the "Head" ccs field enter "73.2".The Engine Compression Ratio calculator computes Single Engine Cylinder the compression ratio (CR) of a combustion engine cylinder. Then add together the gasket displacement ccs with the "Head" ccs. In the "Gasket Thickness" field enter ".0001". To use the actual head gasket displacement volume do the following. Using the gasket ccs is a bit more accurate than using the gasket thickness as when using the thickness an approximation is made about the gasket ccs by the formula. You can enter the displacement in ccs of the exact head gasket you are planning to use if you have that spec. This static compression ratio calculator is an accurate tool and can assist you with selecting the best combination of parts for your engine. and see how they affect compression ratio. You can try different combinations by changing the head chamber volume ccs, engine block deck height, cylinder bore size, etc. You can use this compression ratio calculator to compare different piston combinations, as well as seeing what changes in cylinder head chamber volume, block deck height and head gaskets have on final static compression ratio. We sell a wide variety of pistons from many different manufacturers, all with different specs. Gasket 8703 Hot Rod Calculator They have a low price guarantee, free shipping and they always get our orders to us fast.įree Engine Piston Compression Calculator and Engine Size CalculatorĬhoosing the correct piston is one of the most important aspects of getting the best possible performance from your engine, in your exact application. The best deal we have found on it is here: Mr. Gasket products but we wanted to share this great tool with our customers. We strongly endorse this product if you are serious about improving your vehicles performance and your success at the track. Universal for or use to do any mathematical calculations related to engine performance and vehicle E.T. Easy to use, self contained, no additional computer or monitors required (accurate weather data required for some ET calculations) Hand held, take it anywhere, and includes protective Armadillo case at no additional charge. Quick reference guide with 100s of formulas included for ease of use. Pre-programmed formulas for engine building and track tuning. ![]() This is the chance to know up front how changes will translate into power and performance, so before you spend your time or money, use the Hot Rod Calc to get the answers. Hot Rod Calculator - Street and Strip performance calculator for use by racers, engine builders and automotive enthusiasts. At the track, see how things like gear ratio changes or weather conditions can effect your E.T. Easy to use formulas for the professional or novice will show you how engine changes like compression ratio and air fuel mixture effect your engine's power and torque outputs. The Hot Rod Calculator allows easy, on the spot, calculations of how engine modifications and at track vehicle setup changes can effect power output and track performance.
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