I still can't believe what's happening over hear. I recently saw something about this backyard inventor and his fuel saving idea and I thought just another fruitcake. He's finally released his fuel saving device onto the market over here and has had patents taken in Australia, USA, Europe and Asia. He's claiming that most fuel injected gasoline cars utilizing closed loop fuel control will improve their fuel economy by around 20%! The device is an alloy collar that slips tight over the end of the injectors. The theory is that the injector's internal fuel reserve prior to the tip will now be heated up an extra 180 degrees F so the fuel will vaporize virtually as soon as it's injected into the intake port. This should mean that all the fuel sent into the combustion chamber will now be available for complete combustion. Whereas in a normal engine the fuel is injected as a fine mist and can find itself condensing onto the intake port, valve, rings etc, which may only burn during the exhaust stroke.
So with the device fitted vaporized fuel is now being burned completely and the combustion efficiency has naturally improved. This would now show up as a richer mixture at the oxygen sensor as there would be less oxygen in the exhaust. The engine's EFI computer will now trim the injector pulse width back until the stoichiometric air/fuel ratio is reached. That's how the extra fuel economy is achieved.
The product has been backed by Repco, which is an Australian Automotive parts engineering icon that developed the Repco engine for Jack Brabham who went on to win 2 Formula One world championships in the sixties. Australia has the toughest anti fraud laws anywhere in the world and believe me, if this product does'nt deliver then the inventor better start running before consumers want a piece of his sorry little a s s!
It ain't cheap, probably around $200 or $320 fitted. But if the claims are found to be true, then I would not hesitate in trying it out. The engines fitted with the device also idled and functioned a lot better. Have you ever noticed how well an engine idles on propane gas, even when cold!
Let me know what you think and I'll keep you fellas posted. Try the official website, but be patient, it's a little slow for obvious reasons. Rob
http://www.vaporate.com/main.php

If it works then no doubt the government here will find a way to deep six it because of environmental concerns, or it causes cancer, or is fattening.

Devices to preheat fuel have been sold before. Didn't work then because of preignition problems. Perhaps with engine managment systems this might be overcome.
You are still adding heat to the incoming charge which decreases density which lowers power which will require more throttle to produce the same acceleration which has fuel usage back to the same level as before.
Sounds to me like sameold sameold

BS IMO.

Vince

BS? Then back your statement Vince!

Don't have to, just have to wait for it to proove itself on the open market. If it works as advertised I will be singing it's praises. But we will have to wait and see.

Vince

The teflon oil additives such as tufoil and others have lab data as well, looks like a bunch of hooeey if you ask me...where is this heat coming from anyway?

The intake manifold metal mass? Seems to me that this device is cooled by the air coming through the intake manifold?

Maybe it's magnetic.

Besides Willy's36 and his black suit strong arms would have taken care of this character long ago if it actually worked.

MAybe the way it was described here is not exactly right. If what was described is the case then, I have to agree with the guys here, it isn't going to work. If it cooled the fuel then I would be a more prone to think it could work. There are tons of "fuel saving" inventions on the market none of which actually work. With the fuel management system on computer controlled cars, it will be hard to "trick" them into working. Everything is monitored, also what will heating the injectors do to them. Will you save $50 in gas and have to spend $250 to replace the injectors?

I am not trying to shoot down the idea, heck I hope it works. People just tend to not be so trusting about these types of things anymore. To many "snake oil" fixes over the years.

Royce

Hey 327,
How you been? Man, I gotta agree with Vince here. I went to every grade in High School (some of them twice) and I ain't never heard the word stoichiometric. I am old enough to remember the old Ford Galaxies. Back in 1964 (maybe more years) Ford actually ran a heated water line into their carbs on the 390. I can only guess they were attempting to do the very thing you are describing(heat the fuel vapor). For some reason they discontinued that. Four Jaw asked where the heat was coming from. Maybe by constricting the fuel orifice it would increase the fuel temp?? I gotta think if something like this would work someone like Smokey Yunick would have invented it already.

[QUOTE=4 Jaw Chuck]The teflon oil additives such as tufoil and others have lab data as well, looks like a bunch of hooeey if you ask me...where is this heat coming from anyway?QUOTE]

A patent does not prove a described device does what it is supposed to do. The Patent Office archives have literally hundreds of thousand's of patented items that didn't work. All you have to do to get a patent is fill out the paper work and pay the fee.

Ah yes, the teflon oil additives . I also have several nice size lots for sale about 12 miles south of Sabine Pass Texas

Vince

Vern, I had to put myself back onto my chair with your comments on the stoichiometric air fuel ratio IMO. Man you're showing your age as you've obviously done all your automotive training on carbs and not EFI! Just do yourself a favour and look up 'that word' under this site's search and you'll see it's been discussed b4. Just all remember, that I'm not the inventor here okay. We've had posts b4 on 'any tricks on vaporizing fuel' and the threads just kept on coming, and coming, and......... So I thought I'd pass the info onto you guys.
I'm not really sure where the heat comes from Vern and 4Jaw, I guess by increasing the surface area of the injector tip with the use of the alloy collar answers that one. Just remember, that no liquid, be it liquefied propane fuel, water or gasoline would evaporate without the presence of some form of heat. So if we're injecting cold fuel into the cool incoming air charge that there's alway that element of risk where some of the fuel will not atomize, particularly as it condenses on the ceiling of the intake port. The fuel injected into the port is of such low proportions compared to the volume of air entering that the heated fuel's not going to heat the incoming air charge to a level as one would think. Remember, propane liquid is preheated so it's released as a vapor into the intake. Any fuel that's completely vaporized is going to more likely to burn completely than fuel that's partially in droplet form. Anyways, I guess I'm not doing myself any favors here and feel the hole's getting deeper with each key stroke! But, I'm gonna stick by my fellow countryman (as anyone should right?) and keep a positive eye on the whole deal. If he turns out to be another scud, I'll dress myself in drag wearing my girlfriend's prettiest frock and add it to my photo album for you all to poke fun at me!

Not necessary, but it would be a scream.

Vince

Hi 327,
Concerning me, you are right on every count. I come from the "old school". Kind of like John Force, where if you poor enough Nitro in one and spin up a couple of magnetos that 'ol hot rod is gonna do something. It is true that sometimes we overlook the easy things and it is that is what makes some guy a million dollars.

i dont think thats gonna change the pattern. if it hangs in front its a obstruction, bad. inferior quality injector seals will leak,bad. if you think your injectors are clogged do a pattern test. i think you can get more power, with less fuel, with a cooler mixture. cause a hot injector is a sad injector

camaro said it right "snake oil" big time.

Whether it actually works or not, I'd bet that a year from now no one will even know anything about it.