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Install two coils increases gas mileage.

Discussion in 'Electronic Basics' started by Tibur Waltson, Jan 17, 2004.

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  1. The sparks in my car isn't as strong as I want it to be. I have an
    ignition coil and an ignition module that I will hook up to the car.
    The coils will install in parallel.

    The grounding of the other coil will trigger the second ignition
    module. This will give it two coils. I thought maybe two coils
    are stronger than one and should increase gas mileage. Will this work?

    --Honda Accord 89
  2. Is it at factory correct specs now?
  3. Unless the ignition system is not powerful enough to ignite the fuel
    properly and is misfiring (in which case there's probably something broken),
    this is not going to help anything.
  4. Tony Hwang

    Tony Hwang Guest

    If you parallel the coil, the output will halfen.
    Your idea is flawed. don't do it. It may cause a irreversible
    damage to ign. circuit.
  5. John  Ings

    John Ings Guest

    If you light the fuse on a stick of dynamite with a blowtorch instead
    of a match, will you get a bigger explosion?

    Unless your engine is misfiring now, no amount of extra strong spark
    buys you anything.
  6. Boris Mohar

    Boris Mohar Guest

    That is not correct. If both coils are identical the output will be same
    voltage with twice the available current. This is assuming that the primary
    driving circuitry can handle the job which I doubt. The idea of paralleling
    the coils is not a good one. Tibur should explain how did he determine that
    the coil "isn't as strong as I want it to be"


    Boris Mohar

    Got Knock? - see:
    Viatrack Printed Circuit Designs
    Aurora, Ontario
  7. TCS

    TCS Guest

    If your coil is defective, replace it. Firing the fuel charge a second
    time won't make one whit of difference.
  8. Thinker

    Thinker Guest

    How have you determined that the spark is not enough to do the job?

    Honda is much better equipped and much more knowledgeable about this
    than you are so I would consult with them before you go off on a
    half-baked idea of your own.
  9. Don Bruder

    Don Bruder Guest


    A damn good description of every post I've seen from this "Tibur" guy so

    First it was trying to use a welder to jump-start a car. BRILLIANT...

    Now double coils... What's next Tibur? A car that runs on oatmeal?
  10. Eric R Snow

    Eric R Snow Guest

    Mebbe that welder jump start trick is the reason the coil is weak now.
    Or, could be that after seeing the sparks from the extra coil.
  11. Kevin

    Kevin Guest

    That's not necessarily true. If you have ever been in a small plane and
    switched from one mag to another to both you will notice an instant RPM

  12. Neil Nelson

    Neil Nelson Guest

    Dudes got nine lives or something...
    Actually, I believe that has been done already.
    Sold under the brand name; Horse & Buggy. 8^)
  13. Bob

    Bob Guest

    That's true... keep in mind though that planes have two spark plugs per
    cylinder, each with it's own separate ignition system. I don't think Tibur
    was planning to pull his heads and have them fitted for two plugs per
    cylinder. Using two coils to fire one plug is not likely to help much.
  14. Swells8044

    Swells8044 Guest

    yes but a plane has 2 plugs per cylinder
  15. I'll keep it down...

    Isn't it exciting to see me fry something. :) I fried an $800 PC, $600
    motor, $500 laptop, $300 DVD player. List goes on. You might think,
    "This guy is making a fool of himself," but no, actually, I gain experience. I
    fix half the stuff I break and succeed.

    Learn form your mistake = experience.
    Learn from others mistakes = wisdom.

    "To know the road ahead as those coming back."

    `Being bored is harmful in several ways, explained Caruba, who
    founded his institute 17 years ago to educate the public on the
    dangers of boredom.

    It's a major cause of depression - which can lead to suicide.

    Boredom, which hits people of all ages, "shuts the mind down,
    limiting your ability to recognize positive ways of coping," noted

    Caruba warns that depression also can weaken the body's immune
    system, making people susceptible to serious illness.

    Fortunately, there are simple steps you can take to combat
    boredom and its deadly consequences.

    First, reach out to other people to develop and strengthen
    relationships. Connect with others by smiling and hugging. Maintain
    goals - always have things you want to learn or do and projects to
    work on.

    And remember, no matter how busy you are, regularly make time
    for friends and family. Isolation leads to boredom. Stay in touch
    with others.'

    Taken from
  16. Here, take a look at the contraption circuits: -move mouse over pic-

    The coil isn't as strong as I want it to be because the sparks are very
    faint compared to other cars. It looks blue-orange and you could see
    right thru them. It's amazing that it burns fuel and not missing, actually it
    was missing couple days earlier until I replace with new plugs.

    Normally it shouldn't miss because I only had the plugs (the ones taken
    out) 7-8-thousand miles. The new coil contraption was meant as a
    diagnostic jig... or perhaps, increase gas mileage.

    89 Accord-lxi 270K mi.
  17. Boris Mohar

    Boris Mohar Guest

    That would work since you included the ignition module, assuming that the
    pickup can drive two ignition modules. For a stock car I see no point.
    Blue orange? That is a hot spark. How long is it? It could be that the
    ignition wire insulation or the distributor is breaking down. Change those

    Here is a hot spark that I made once.


    Boris Mohar

    Got Knock? - see:
    Viatrack Printed Circuit Designs
    Aurora, Ontario
  18. Don Bruder

    Don Bruder Guest

    Actually, I believe that has been done already.
    Sold under the brand name; Horse & Buggy. 8^)[/QUOTE]

    And despite the fact that the "exhaust" can stick to your shoes, quite a
    nice ride :)
  19. Neil Nelson

    Neil Nelson Guest

    Dunno... Which episode(s) of Jackass were you on?
    Looks to me like you're out $1100.00

  20. Kevin

    Kevin Guest

    good point, but if second coil was delayed a few milliseconds it might be

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