Re: Questions...Comments
Originally posted by Ormand
........The fuel injected into the ports will normally vaporize, and cool the charge in the heads and combustion chamber. What is gained by using some of this same cooling a little farther upstream in the flow?........
No, the fuel injected into the ports does NOT normally vaporize, only a very small portion does, and only this portion burns to force the piston down on the power stroke. you may be thinking of atomization, which is hardly the same as vaporization. atomization is still liquid, just drops, instead of a stream so to speak.
Originally posted by Ormand
........Third... Gasoline is not a very good cooler. The heat of vaporization is only about 117, compared to 1000 for water, and about 400 for methanol. So, for charge cooling, water and/or alcohol would clearly give much better cooling.
True. They do try them, they do work better. alcohol injection, or running it on pure alcohol, water injection, is all available and work better, but one of the things he is trying to do here, is to NOT run 2 seperate fuels. Makes it much more practical to only have to fill 1 tank, and cheaper too.
Originally posted by Ormand
........Fourth... Varnish may appear. Gasoline is NOT a pure substance, it is a mixture/solution of a lot of different hydrocarbons, and other stuff. Some of that stuff will not evaporate at temperatures below 300 degrees, maybe higher. If you pour some in a glass, and let it evaporate, you will almost always get a gooey coating in the bottom of the glass.
Yes, i mentioned this earlier in several of my posts, with the same experiment. But lets forget the varnish for now, aparently its not relevant to the topic.
[/B][/QUOTE] This "experiment" would seem to just recreate the way the Buick engine was before 1986.. when it made less power. [/B][/QUOTE]
it was also carbureted with a distributor, and poor turbocharger design, poor intake design, etc. That was just the beginning(78-83) of what they became. Alot of what actually makes these(84-87) have more power is better intakes, heads, exhaust, turbos, fuel injection, computer controls, DIS ignition, etc. they are worlds ahead of the old ones, that is just one aspect, and its not neccessarily the reason that they performed less. cant be compared.
A engine that has a properly designed and executed fuel vaporization system incorporated, and the controls to optimize it will make gobs more power, and be extremely fuel efficient at the same time with next to no emmissions.
Interesting fact, is that some people say that a engine that burns fully vaporized gasoline, will have a cold or only slightly warm exhaust, which would not neccessarily be good for a turbo application. This occurs because all of the vapor that is injected would be burned immediately and none would be left to burn as it exited the engine as exhaust. So, basically only a low portion of the energy would be changed to heat energy if the system is properly designed and executed. something to think about maybe.