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Fuel economy increase using magnets???

Discussion in 'General Chat' started by BDCSTENG GARETH, Sep 19, 2005.

  1. BDCSTENG GARETH

    BDCSTENG GARETH
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    So this crazy engineer I work with is one of these internet conspiricy believers (reading all day about the theorys regarding whats going on in the world).

    He came to me and told me he has increased his milage on a tank by 10%.

    He has gaffer taped 2 really strong magnets, oposing each other, each side of the fuel line into the carbs...

    Whats that all about?

    Does it work?

    Im on the lookout at work for some magnets to give it a try...

    Any thoughts?
     
  2. Ethics Gradient

    Ethics Gradient
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    Is his name 'Mr A Mental' ;)


    .... its a load of old cobblers.
    If it worked, motor manufacturers would have them fitted to cars as standard and sell their cars as ' most ecconomical '


    ...... surprisingly they don't .... yet one would think they have access to the internet and mechanical engineering expertise far in excess of 'the bloke from work'
     
  3. BDCSTENG GARETH

    BDCSTENG GARETH
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    He was also placing blunt scalpel blades in a pyramid made of paper to se if they would et sharp again.... :rotfl:

    But the petrol thing interestes me cos it could save me money... (but i doubt it!)
     
  4. Jenn

    Jenn
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    He probably watches too much Mythbusters on Discovery. I saw the pyramid thing yesterday.
     
  5. Ethics Gradient

    Ethics Gradient
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    Its a scam - simple as that ... they get muppets to buy magnets ... and the odd one or two think they are being clever by going and sourcing their own magnets :rolleyes:

    Basically - modern cars are about 99 - 99.5% effecient in burning fuel.... so these magnets could only increase it by 0.5% if they did actually work. So that would be 1/5th of a mile per gallon at best on a 40mpg car ;) ... again IF it actually worked.

    Liquids passing magnetic fields do not retain any effect once they leave the field either ( unless u are pumping molten iron around your system ;) .... so what it would actually be doing when it gets to the engine has nothing to do with magnets ;)

    If the magnets actually worked, and say cost about a tenner, you'd have to spend £2,000 before you broke even.
     
  6. Dr Diversity

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    I don't wish to doubt you but where did that figure come from. What about all the engine and exhaust heat. Looks like a figure from www.vicreeves.co.uk :)
     
  7. mh123

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    Could be that the 'pull' of the two magnets constricts the fuel pipe slightly and thus passes less through? :devil:
     
  8. Ethics Gradient

    Ethics Gradient
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    I can't rememeber tbh - it was something to do with Hydro Carbon emmisions for MOT passes ( limit is 200ppm ) meaning that your engine should be burning virtually all the fuel that it is fed or you won't get past your MOT.
     
  9. alexs2

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    This old chestnut has been doing the rounds since the mid 80s,and I'd have bought 2 of them for my last car if it had worked!

    Seriously though,utter nonsense.
     
  10. Mep

    Mep
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    just make sure all of your journeys are downhill and then simply coast to your destination
     
  11. neilneil

    neilneil
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    Car petrol engines are most deffinately not efficient. In fact they are terrible, I don't know the exact figures but I think it is something like less than 50% efficient.
    They waste a lot of energy in heat and engine friction.
    The actual moving energy you get from burning fuel in an engine is very poor.
    What they do do is burn nearly all of the fuel that enters the combustion chamber which is the 99.5% figure EG quoted.


    -Neil
     
  12. KoThreads

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    Does that also apply to those electric water descalers they sell for about £80 to 'ionise' the calcium by winding a coil around the inlet pipe? Or is that b******s as well.
     
  13. Ethics Gradient

    Ethics Gradient
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    Yep ... I clearly stated the first time I mentioned it "Basically - modern cars are about 99 - 99.5% effecient in burning fuel."

    If you do a web search on those 'magnets' regarding fuel ecconomy ... all the bumph states that they 'effect the Hydrocarbon molecules' making the fuel burn more effiencently ... and supposedly giving 20% more mpg.

    Since the car is already burning 99.5% fuel ... where does the extra 20% burning come from ;)
     
  14. Ethics Gradient

    Ethics Gradient
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    another load of old crap to part people with hard earned cash for junk
     
  15. Ethics Gradient

    Ethics Gradient
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    Alot of this comes from the fact that the general public don't understand science ... and companies and use alot of psuedo sceintific words and phrase to make someothing 'sound sceintific'

    As soon as someone mentions magnetic fields, its almost like imagining some pruvasive force surrounding you and 'doing mystical things'.

    The internet .... and scam artists are full of this sort of rubbish.
     
  16. The Dude

    The Dude
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    Essentially, much like the Jean-Michelle Jarre album of the same name :rotfl:
     
  17. Peridot

    Peridot
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    Couldn't agree more - just look at the Russ Andrews comic (sorry, catalogue) for some prime examples :D
     
  18. Dr Diversity

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    I thought the magnet idea was attractive
     
  19. Mep

    Mep
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    we're poles apart on that
     
  20. Ethics Gradient

    Ethics Gradient
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    I'm repulsed by the pair of you
     
  21. HMHB

    HMHB
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    Right, for those poor jokes I think you should all be banned Faraday ;)
    :rolleyes: I'll get my coat now !
     
  22. Mep

    Mep
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    *lol* yes i think you should!
     
  23. Stuart Wright

    Stuart Wright
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    Something I don't understand is why we are told to keep the car in gear when going down hill. Why? Surely if the clutch is not engaging the engine, there will be much fewer revs and hence less fuel burned.
    Engine braking isn't important because you can use the brake to slow down.
    And re-engaging the clutch gives you instant control again.
    :confused:
    So why not coast when you can?
     
  24. chedmaster

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    coasting requires the engine to be powered slightly to stop itself stalling, but if your in gear then your momentum is turning the engine without it needing to power itself.

    thats the way i understand it anyway :)
     
  25. Mep

    Mep
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    a cars engine won't stall coasting down hill but you do have more control with engine breaking rather than just wheel breaking.

    (local aside) Ched you can coast all the way from Winterfold down Barhatch lane past the golf club if you get it right ! ;-)
     
  26. benwillcox

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    Well I'm no expert, but I believe its to do with something called an overrun cutoff. Basically when you're coasting downhill in gear, the ECU cuts the fuel off completely (I guess this only works on fuel injected engines), therefore using less fuel (i.e. none) than if you were letting the engine idle in neutral.


    Ben.
     
  27. chedmaster

    chedmaster
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    ben, thats what i was trying to get at, well explained :thumbsup:

    mep, ill be sure to remember that, but coasting is definately frowned upon by instructors and examiners alike! in fact, its against the rules :D
     
  28. ijd

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    oh come on you doubting thomas `es
    http://www.moremiles4u.com/
    check it out here,its so technical yet simple it must work, the only reason manufactures dont fit them is because the fuel companies pay them not to.infact they have made a very hush hush engine that runs on thin air,but dont tell them i told you. best buy one quick.
     
  29. Mep

    Mep
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    of course it is :) but show me somebody who sticks to the rules after 20 odd years of driving
     
  30. MartinImber

    MartinImber
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    Because the car is turning the engine over and the fuel is turned off
     

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