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 coil wire ohm 
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Joined: Sat Nov 16, 2013 3:41 pm
Posts: 43
Location: Metro Detroit
All my plug wires ohm test at 50 ohms/foot.My coil wire of a different brand tests at 500 ohms/ft.I have the Crane hi6 CD ignition system.No symptons...just curious if I should shop for a 50 ohm/ft coil wire.


Sun Jun 12, 2016 6:26 pm
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Joined: Fri Feb 08, 2013 2:37 pm
Posts: 1701
That shouldn't cause any problem. Keep your eye open for a leftover 50 Ohm/foot from someone making a set of wires, but it probably isn't worth the trouble.


Sun Jun 12, 2016 7:57 pm
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Joined: Sat Nov 16, 2013 3:41 pm
Posts: 43
Location: Metro Detroit
Will do Tuner.Thanks.


Mon Jun 13, 2016 5:22 am
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Joined: Sun May 12, 2013 5:21 am
Posts: 319
Location: Michigan
You can buy just the coil wire for not too much https://www.summitracing.com/search/par ... ner=SREPD4 I've read it prob should be replaced sooner than your plugs wires since it's working 8x as much.

edit: The recent set of MSD wires I made I ended up with a few lengths I saved for future coil wires. I've also read a min of 18" for a coil wire.

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Mon Jun 13, 2016 2:56 pm
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Joined: Sat Nov 16, 2013 3:41 pm
Posts: 43
Location: Metro Detroit
I was looking at the msd 34039 bulk wire.Its 6 ft long for $20.I need 2 ft and would have some extra left over.I like that its only 40 ohms/ft.Just hard to find on the shelf...everything is order and pay shipping.


Mon Jun 13, 2016 3:46 pm
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Joined: Fri Feb 08, 2013 2:37 pm
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BOOT wrote:
You can buy just the coil wire for not too much <a style="" href="https://www.summitracing.com/search/part-type/coil-wires?ibanner=SREPD4" class="skimlinks-unlinked" data-skimwords-word="https%3A%2F%2Fwww.summitracing.com%2Fsearch%2Fpart-type%2Fcoil-wires%3Fibanner%3DSREPD4" data-skim-creative="500005" title="">https://www.summitracing.com/search/part-type/coil-wires?ibanner=SREPD4</a> I've read it prob should be replaced sooner than your plugs wires since it's working 8x as much.

edit: The recent set of MSD wires I made I ended up with a few lengths I saved for future coil wires. I've also read a min of 18" for a coil wire.
I think you mean MAXIMUM 18". It is best the coil wire be as short as is practical.


Mon Jun 13, 2016 10:46 pm
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Joined: Sun May 12, 2013 5:21 am
Posts: 319
Location: Michigan
No I read min was 18" from msd, think max recommended I saw was 36"

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Mon Jun 13, 2016 11:55 pm
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Joined: Fri Feb 08, 2013 2:37 pm
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BOOT wrote:
No I read min was 18" from msd, think max recommended I saw was 36"


Probably was in the same magazine article that says to use .060" plug gap. That's just nuts. All the wires should be be as short as practical, particularly the coil wire.


Tue Jun 14, 2016 1:46 am
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Joined: Sun May 12, 2013 5:21 am
Posts: 319
Location: Michigan
idk I tried to look into it more back then and just found the same as that, don't think I found a good reason and just accepted it.

Still It's MSD and like you said that large gap they recommend doesn't work so well.

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Tue Jun 14, 2016 3:30 am
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Joined: Wed Jul 02, 2014 6:17 pm
Posts: 530
tuner wrote:
BOOT wrote:
No I read min was 18" from msd, think max recommended I saw was 36"


Probably was in the same magazine article that says to use .060" plug gap. That's just nuts. All the wires should be be as short as practical, particularly the coil wire.


Years ago when I worked at Pettis Performance Machine Shop we wrapped a 6+ foot coil wire AROUND the ign. box on the dyno and zero loss............... :omg:


Fri Nov 25, 2016 11:47 am
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