Fuel Saving Magnets???

[Red Robin]

Originally Posted by hondo434

I installed them around the fuel line near injectors on the rubber fuel line. I tested the car,turning it on, the idol was about 500 Rom's higher than normal I took for a short test run the torque was noticeably higher and the car ran stronger with strong accretion. I have owned the car since new in 1997, the best mpg I had gotten was 29 mpg highway with non ethanol gas. I don't drive the car very much so it took about a year before I took a highway trip of about 190 miles round trip. I filled the tank and when I got back I refilled the tank and used 5.4 gallons for 190 mile trip which figures to 34.9 mpg with ethanol gas. I was impressed with results so I ordered another set of magnets to try on the other car to verify the results. I installed the magnets and took a vacation trip of about 160 miles each way. I had the car since new and had gotten a high of 28 mpg with non ethanol gas. We started out on the trip, the car has a mileage gauge built in so I can monitor mileage constantly. As we drove the mileage increased, I had told the wife about the experiment so I was on the spot. After about 60 miles the monitor was reading in the mid twenties, as we drove the mileage slowly increased 24,26,27,28, I was watching with interest as the mileage increased, 29, 30, 31,32, then I was showing the wife, she did not believe me, 33,34,35, by the time we got there we had reached 35.9 with non ethanol gas. We immediately stopped at a gas station to do a Manuel gas calculation and verified that we got 35.9 mpg. We have been getting that millage for over two years now. I added magnets around the air tube and that boosted the millage up to 37-38 with non ethanol gas, with ethanol gas the mileage dropped to 35 mpg. I say that the ECU has to make a change because when I took off the magnets the mileage didn,t drop so the ECU had the info downloaded.

The only way to get significant millage increase is to have a ECU that can sense the change in fuel quality and adjust parameters to reduce fuel delivery. If the ECU doesn't recognize the change the negative cable of the battery will have to be disconnected to clear the old parameters and reset to new parameters. Each vehicle takes different amount of time to clear.

....[I have shortened your quote to more easily answer some of your points and have highlighted those in bold]

Answering your first point about revs, torque, and acceleration: Higher revs, no matter how caused, results in more fuel being injected and therefore higher fuel consumption. It is not good for an engine to idle at higher than originally designed revs - Engaging first gear or reverse will cause unnecessary stress. Furthermore, without either testing the car on a rolling road dyno or going for a drive with a laptop plugged in, you have no real data to show how torque is increased. I suggest that what you experienced is what's called the placebo effect.

I think that when you say "mileage gauge built in" you are in this case referring to the mpg gauge. As you set out on any journey the mpg gauge of every car will display lower mpg values and gradually increase to its optimum according to the type of journey and, more importantly, how you are driving. For example, my car will start out in town at 17mpg and only rise to 30mpg after at least 40 miles. In Germany on unrestricted speed autobahns I'll get 22mpg and on a trackday typically 15mpg. All these values are a result of how the ECU continually calculates the fuel consumption to display after the event. After a full trackday, not only will my mpg gauge continue to display a low value for many miles before it gradually readjusts, but my fuel tank capacity will initially also display a false mileage-remaining value based on that mpg until both gradually correct themselves after driving considerable miles.

Most important point of all in what you say: ECU's work 'smartly' and are constantly on the alert and reactive to how the engine systems are behaving within preset parameters. ECU's can only have their parameters modified by dedicated professional aftermarket tuners - The process is called remapping and involves breaking manufacturer's security codes and many months of scientific testing before offering to the public. I have been involved in such testing myself. The limitations of the car's fuel pump, the ECU's parameters on fuelling and timing are only some of the factors. My car's ECU remap by RevoTechnik takes into account that I exclusively use higher octane Shell V-Power petrol for example. If in emergency I have to use 95 RON fuel, my performance will slightly reduce as the ECU reacts to what the fuel is doing and which parameters are not being met. All this involves complex computer code programming and not crude magnets!

I suggest that you are potentially damaging your car by using magnets. Thank goodness I buy my cars new unless I know its history and previous owner extremely well - The idea of buying a car unprofessionally modified by magnets is horrifying.

But thankyou for coming on this forum to share your views.

[ForestPaul]

Originally Posted by hondo434

I say that the ECU has to make a change because when I took off the magnets the mileage didn,t drop so the ECU had the info downloaded.

So fitting magnets to the fuel line not only improved your fuel economy but continued to improve it after you'd removed them ?
That's, er, amazing

[Jim Ford]

Originally Posted by ForestPaul

So fitting magnets to the fuel line not only improved your fuel economy but continued to improve it after you'd removed them ?
That's, er, amazing

Yeah, real weird - still, I think the poster is in the U.S.A where anything is possible!

Jim

[bigdave60dog]

The magnets from a computor hard drive are very powerful and free from all cast off computors. The are only magnetic on one side. attach them to a steel bit your fuel system but miles away from your engine management system.
If they work , great, if not you have lost nothing but gained in experience.
Dave

[Red Robin]

Originally Posted by bigdave60dog

The magnets from a computor hard drive are very powerful and free from all cast off computors. The are only magnetic on one side. attach them to a steel bit your fuel system but miles away from your engine management system.

If they work , great, if not you have lost nothing but gained in experience.
Dave

....I really wouldn't be quite so sure that you will have lost nothing. Your gained experience may very well be at the expense of your car's health.

If reduced fuel consumption by the use of magnets was safe, don't you think that the commercial car manufacturers would have already developed the technology? - Fuel economy tends to be a factor which sells cars to a lot of people. I think I need to ask some folks I know who are more knowledgable than I am about ECU and fuelling systems etc.

[thunder]

Originally Posted by Red Robin

If reduced fuel consumption by the use of magnets was safe, don't you think that the commercial car manufacturers would have already developed the technology? - Fuel economy tends to be a factor which sells cars to a lot of people.

No, no, Red Robin, haven't you been listening? The car manufacturers are linked to the oil companies in a conspiracy to make people use as much fuel as possible. Please try to keep up!

henrya

[Red Robin]

Originally Posted by thunder

No, no, Red Robin, haven't you been listening? The car manufacturers are linked to the oil companies in a conspiracy to make people use as much fuel as possible. Please try to keep up!

....Well in my case they don't have to try too hard - I'm a petrolhead who loves driving

[STYRBJORN]

Magnets + engine chips is a well dodgy plan. A few years ago a biker friend of mine bought a new laptop. He spent most of the weekend loading the thing with data for work. I saw him Monday night, propping up the bar with a seriously sad expression on his face. He had taken the laptop into work, fired it up and . . Zilch. Nothing. Nada. Blanksville baby.

Thing is, he ran a big Kwak. Rather than mess up the handling with a topbox, he used a tankbag. Attached to the the tank with some big FYT magnets. Put the laptop in the tank bag and the magnets et the hard drive. Wiped the lot, and screwed up the disc so it couldn't even be reconfigured. Nearly wrecked a good friendship 'cos I dam' near fell over laughing. The Kwak was pre-chip, so no problem with the bike, but he went back to desktops after. Remarks like "She has great personal magnetism" were best avoided.

Ric

[Jim Ford]

Originally Posted by STYRBJORN

Thing is, he ran a big Kwak. Rather than mess up the handling with a topbox, he used a tankbag. Attached to the the tank with some big FYT magnets. Put the laptop in the tank bag and the magnets et the hard drive. Wiped the lot, and screwed up the disc so it couldn't even be reconfigured.

I'm very, very surprised. HDs are in steel cases which will shield and 'route' the magnetic field around the unit. I've tried corrupting a floppy disk by wiping with powerful neodymium magnets, but it made no difference. I believe the lines of force need to be concentrated across the very fine gap of a purpose designed head and held very near to the disk to be effective. It's not so much the strength of field, but its concentration. It was probably the vibration that 'did' for the laptop!

I'd also be very surprised if a powerful magnet - eg neodymium would have any effect near an engine ECU. Semiconductors aren't much affected my static magnetic fields, and besides the inverse square law is your friend!

Garage mechanics aren't generally known for the depth of knowledge of electronics - they insist in calling the capacitor in a 'Kettering' ignition system a 'condenser' decades after the name was dropped in industry!

Jim

[STYRBJORN]

Spoilsport.