ive heard of preheating fuel to achieve better combustion.. how about pre atomizing..

http://www.wyominginstruments.com/g_how.htm

Hhhmm this sounds like a bunk gimmick to me. Gasoline doesn't become vaporized until it leaves the bowl in the carb and passes through the jetting. I don't believe in pre-heating either as a matter of fact that goes against everything i have been told as cold fuel burns better (IE. Aluminum intake, heads etc.)


Just my $.02


Tom

Ben,

"Sludge Chamber"??

Sounds like so much fun, I'm going to have to pass on this one.

Heating liquid fuel too much in a carb application results in the much dreaded "vapor lock", where a bubble of fuel vapor prevents the liquid fuel from flowing.

Most older V-8's used the exhaust cross over under the intake manifold to heat up the bottom surface to better vaporize the fuel during warm up. So heating fuel to better vaporize it is not by itself a bad thing. I beleive that cold air is desirable as the colder the air, the more dense it is, the more O2 per intake stroke, in theory leads to more power.

All in all, I don't see the benifits of this device, however. How the fuel arrives in the cylinder shouldn't matter, just so long as the appropriate fuel / air ratio is maintained.

I once used a "water injection system" on my daily driver 67 ragtop SB. It basically bubbled air thru a water / toulene / alcohol mixture and then into the mainfold. Despite all the claims of greater plug life, milage, etc, the only benefit I know of was I could use regular without any pre-ignition / detonation.

I fear these are all hardware versions of snake oil. Like everything else, things that sound too good to be true, usually are.

That's my $.02.



NJ BB Ken

In fact I have done some research with this type of system. Please don't anyone confuse this with water injection. Two different things. Here are facts.

If you atomize the fuel before going through a fuel injector or carb, the fuel will be dispersed to a small quanty, and starve the engine for fuel. It will have the same effect as a vapor lock, even when the engine is cold. This is impossible to run the car. So it does not do exactly that.

What it does instead is heat or magnatize the fuel, depending on which of these systems you want, with the theory of repelling molocules to create better atomization. Better atomization is always a good thing, but the magnetic version just does not work. The heated version is usually a negative. Again, you are expanding the volume of gas, but reducing the per cubic foot quanity. You create a lean condition. It has the same effect as a heat riser shut on a hot engine.

As windrider stated, it can create vapor lock. It may cause pinging. While the theory look good when presented in the correct form, when all factors are considered they are always a negative.

I have done some actually testing on a different, simpler version of this system. I uses an engine analyzer and exhaust analyzer. There was no change in any reading. The owned did experience a vapor lock he did not have without the system.

All of these systems do what they are designed to do. They take your money. They do not help you in any way unless you feel your wallet was too heavy.

Ken,I can"t remember when my wallet has had that to full feeling since I got my 78!

AMEN!

Do a bit of research on Smokey Yunick ,,,,,,,,, he dabbled a bit with this type of system

geo

i was pretty sure it was bull..

but 10 years ago when someone told me about water injection I thought it was bull.. if i hadnt been shown the water cleaning trick by my old man i wouldve never tried water injection.

you never know.. so I thought id ask.. there are quite a few positive testimonials on his site..

and ill be the first to admit that I dont understand everything about combustion.

I was looking around for components to build a new water injection system for my car and saw this page..

The system Smokey dabbled with had extensive modifications with the fuel system. Nothing stock. There are other systems that showed only minor promise, but again, far from stock, or even performance built. Theory showed promise with major changes, but the results were poor.

I know of one that uses a heated tank and evaporates all the fuel before it enters the carb. Only pure atomized fuel gets in. It didn't work well either.