cooling gasoline????

[icosaca]

guys, someone told me that by putting some sort of cooling device for the gasoline before it gets to the engine ads significant amount of power...
ive never heard of this, have any of you guys heard about it???
jorge saca

[Tyler@UniqueDesign]

guys, someone told me that by putting some sort of cooling device for the gasoline before it gets to the engine ads significant amount of power...
ive never heard of this, have any of you guys heard about it???
jorge saca
Uh.....I dunno why it would - the gas has to vaporize though so maybe the cooling effect (like how using direct injection over multi port allows about a 10% increase in compression ratio with NO change in octane, timing, etc.) that the gas has because of that would be similar to water/alcohol injection.

[icosaca]

dont understand much what you are trying to say ....

[Tyler@UniqueDesign]

dont understand much what you are trying to say ....

If the gas is cooler - chamber is cooler = better combustion or something. I don't understand what I was trying to say well enough to explain it better, read up on direct injection though, I think this might be similar to its advantages (other than perfect fuel metering).

[PacoSaca]

what is direct injection now???????

[Tyler@UniqueDesign]

what is direct injection now???????
Fuel delivery systems have developed a lot with time - brief rundown:

Carburetion - Air flows into the engine and there is a partial vaccuum created in the chamber of the carb. The vaccuum pulls fuel out of an unpressurized bowl through a needle and the fuel is mixed with the air before going through the intake manifold. The mixture isn't exactly precise, and is controlled by a plug in the needle.

Throttle Body Fuel injection - The first form of electronic fuel injection was to spray fuel into the throttle body. The actual setup appears similar to a carburetor but has positive pressure on the fuel that is introduced into the system and has an electronic control of the metering. This allowed for variable mixture settings, and provided better vaporization of the fuel (because it was pressurized and sprayed). Still on the front side of the intake manifold though, the mixture was inprecise and left power/efficiency on the table.

Multiport fuel injection - like throttle body injection but the nozzles (injectors) are located inside the ports of the cylinder head. The fuel is mixed JUST before going through the valve into the conbustion chamber. This is what is on our cars - but for example on my car the injector is on the intake manifold - located just a hair upstream of the actual cylinder port.

Direct injection - a technology that has been around for some time in diesels is finally making its way into gas engines - the injector sprays DIRECTLY into the combustion chamber. This allows for exact (think timing reasons) mixtures which increases efficiency. The spray is directly into the region that is the hottest, so the cooling effect of the gas is higher (like water alcohol injection in principle), and thus the engines are able to make more power while using less fuel, and running more consistantly.

I hope that helps - www.howstuffworks.com is a great site too if you ever get bored :rofl:

[icosaca]

has anybody tried this on our cars????????????