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So you can see the value of the STIC metering block vaporization process, I decided to copy the article so you can read the advantages of a superior vaporizing system that utilizes the cold vaporization process by removing the pressure acting on the fuel. This article was produced by the Standard Oil Company.
The Vaporization Situation copied from the article; “The Chemistry of Combustion.” By Standard Oil.
The Vaporization Situation: “… Fuel is formulated to evaporate quickly in the engine. Easily vaporized fuel makes cold starting easier and leads to more complete combustion at high speeds. Reid Vapor Pressure (RVP) is a measure of how easily the light gasoline components evaporate RVP typically ranges from 6.7 to 15 pounds per square inch; a higher RVP number indicates that the fuel is more likely to vaporize. Refiners change the RVP of their gasoline with the seasons and geography to improve start-up in winter and to prevent vapor-lock in summer.
Fuel that evaporates quickly burns smoothly and more completely in the engine. This improves response and increases performance in a range of driving and temperature conditions. (Emphasis added, sounds familiar, could this describe the STIC metering process?)
A fuel that evaporates quickly is especially beneficial at high engine speeds when there is less time for fuel to vaporize. In addition, as the fuel evaporates, it cools the intake mixture. The cooler intake mixture is less likely to knock than a hot intake charge. A cooler mixture is also denser, which increases engine power."
Engine efficiency
“… increasing the compression ratio is a key to improving performance and efficiency. Compressing the air and fuel into a smaller space with higher compression increases the engine’s efficiency as the combustion gases expands and push against the piston. How powerful is this expansion? Peak cylinder pressures in a high-performance engine can exceed 1,000 psi.”
Kudos (credit and praise) to the aftermarket head manufactures, as it goes hand in hand with a superior vaporing carburetor such as the STIC.
The Vaporization Situation copied from the article; “The Chemistry of Combustion.” By Standard Oil.
The Vaporization Situation: “… Fuel is formulated to evaporate quickly in the engine. Easily vaporized fuel makes cold starting easier and leads to more complete combustion at high speeds. Reid Vapor Pressure (RVP) is a measure of how easily the light gasoline components evaporate RVP typically ranges from 6.7 to 15 pounds per square inch; a higher RVP number indicates that the fuel is more likely to vaporize. Refiners change the RVP of their gasoline with the seasons and geography to improve start-up in winter and to prevent vapor-lock in summer.
Fuel that evaporates quickly burns smoothly and more completely in the engine. This improves response and increases performance in a range of driving and temperature conditions. (Emphasis added, sounds familiar, could this describe the STIC metering process?)
A fuel that evaporates quickly is especially beneficial at high engine speeds when there is less time for fuel to vaporize. In addition, as the fuel evaporates, it cools the intake mixture. The cooler intake mixture is less likely to knock than a hot intake charge. A cooler mixture is also denser, which increases engine power."
Engine efficiency
“… increasing the compression ratio is a key to improving performance and efficiency. Compressing the air and fuel into a smaller space with higher compression increases the engine’s efficiency as the combustion gases expands and push against the piston. How powerful is this expansion? Peak cylinder pressures in a high-performance engine can exceed 1,000 psi.”
Kudos (credit and praise) to the aftermarket head manufactures, as it goes hand in hand with a superior vaporing carburetor such as the STIC.
