The secret was in the engine head. Some guy designed this revolutionary intake maifold that could burn almost anything.
intake manifolds only carry one or two things, air or air and fuel. they dont burn anything. they are the couriers of the mixture that gets burned IN
the combustion chamber.
now most of the fuels you mention can burn at a realtively low 8:1 compression ratio. head design has nowthing to do with that, head design can
effect torque for example it can even enchance combustion but it doesnt make an engine burn something it wasnt designed to burn. like you cant use
diesel fuel in a gasoline engine, it requires a hotter spark, which is why diesel engines have an incredibly high compression ratio compared to
gasoline engines and requires not spark plugs but...glow plugs! they glow red hot to ignite the mixture, once the engine reaches operating
tremperature the glow plugs are no longer needed as the compression is so high the air fuel mixture is squeezed so hard it gets very hot, hot enough
to burn on its own.
being a former ASE certififed auto tech and all enables me to know such things.
im still curious how a gasoline burning engine can burn water.
BTW the car makers we're testing air bags in the 60's and 70's but shhhh, that'll be our little secret. k?
fuel economy is but a number, designing a PRACTICAL (not some one off model some college kids made that can only hold on person a fuel cell and little
else doesnt count) to have very good fuel economy is not an easy balancing act. weight becomes an issue, aerodynamics, gearing, safety feeatures such
as brakes air bags...did you know even tire pressure can effect fuel milage by as much as a few miles to the gallon? its true! tire pressure can
also effect brake performance as well but we wont go into that in this thread. even something as simple as changing the air filter and oil regularly
can effect fuel milage. the engine design is but one component in a larger picture.
sure we've all seen the thread that shows someone can make a car that can get 500 MPG but has no trunk one seat and goes about 15 MPH.
now i've been around cars for some time and i've heard a lot of the "i had a friend" stories. in fact i've heard so many very few are ever true.
i challenge you to find your friend to show some documentation of what he's told you. im betting dollars to donuts noone made a carburetor that got
100 MPG. i've seen lots of carbs in my time and none have gotten close to what EFI can do.
now i've done conversions on trucks for gas or promane use and having a multifuel engines is very real and possible but a gas/propane/water engine?
something about that strikes me as highly improbable. ive seen a lot of engines but never saw one burn water. seen em burn propane, alcohol, nitro
methane, even kerosene, but not water.
i've heard this water burning claim before. even saw a site that claimed it but never explained how it worked. but for a certain amount of money you
could bolt on this "universal kit" and burn water...yeah i've heard of this and never seen it. and believe me aside from the old steam engines
from a copuple centuries back i dont think anyone could have found a way to combust water and kept a lid on it for any length of time without it
getting out to the public somehow. even the government has leaks like a sieve.