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Old 10-14-2003, 18:07   #1 (permalink)
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Bigger coil?

Hey guys.

Just wondering if anyone has used a bigger ignition coil on their EA. Any power gains?

Simon
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Old 10-14-2003, 18:33   #2 (permalink)
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Re: Bigger coil?

i havent purposly put on 2 coils but on my parents efi nissan it had twin coils from the start and 2 spark plugs per cylinder it was a weird contraption and it seemd\ed to go allright over the same motor with only single plugs and coil
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Old 10-14-2003, 20:08   #3 (permalink)
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Re: Bigger coil?

The std ford ignition system is very good. You wont feel much if any gain unless you have heaps a work done eg big cam/porting, turbo, blower. Also if you are going to get a coil, get a msd aswell to use the full potential of the coil.
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Old 10-15-2003, 00:39   #4 (permalink)
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Re: Bigger coil?

MSD on a std coil also makes a slight difference,
The standard ignition is fine, even running on moderate levels of boost, it performs well.
I dont see any reason to upgrade.
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Old 10-15-2003, 00:50   #5 (permalink)
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Re: Bigger coil?

There is a msd beater. "fire ball", its made by come racing and puts out a heap more voltage than the msd
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Old 10-15-2003, 02:59   #6 (permalink)
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Re: Bigger coil?

I've got a Crane Hi-6 setup - which includes a PS91 hi output coil (physically about 2 to 3 times bigger than the std one). To be blunt I never noticed any difference as such with it - except that it eats spark plugs.

- do a Google search or visit the Crane website and sus out PS91 and Hi-6 to see info.

For some time I've been intending to switch back to just the std ignition and coil - when I do I'll post on whether I notice any decrease in performance.

Short answer to the initial question is: I fitted a performance coil and did not notice any change.
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Old 10-16-2003, 01:24   #7 (permalink)
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Re: Bigger coil?

you will not gain a thing unless your std coil hasent got any availiable spark left in it... std coils are bloody powerful.

also, if any of you get to the point of having to upgrade your coils, to get any benefit out of it you will need to upgrade the rest of your system, eg. distributor cap system, if you are making more spark and trying to get it to the plugs using a dizzy cap/rotor button that wasn't designed for a higher voltage, you will only end up with the enrgy leaking out through it or a possible cross-fire...
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Old 10-16-2003, 02:52   #8 (permalink)
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Re: Bigger coil?

Yep - ebs_4L is dead right - mine actually also eats caps and rotors as well as plugs (end of the rotor and the fingers inside the cap get nice and crispied in about 20 000km).
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Old 10-16-2003, 02:54   #9 (permalink)
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Re: Bigger coil?

Thanks for that guys!!
Its good to get a straight answer, so I'll be leaving the stock coil right where it is :)

Simon
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Old 10-16-2003, 06:08   #10 (permalink)
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Re: Bigger coil?

and on a falcon 6, getting to the distributor ain't fun at the best of times so the less you have to pull it apart the better....
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