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Old 03-29-2008, 03:15 AM   #1
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just changed plugs,wires and trans fluid

yep working the mid shift tonight so decided to do some well needed maintence

new msd 8.5mm wires motorcraft cc plugs and 2.1qt's of tranny fluid


very simple took about 1 hour in a half for everything


tranny fluid was very dirty......
but no metal chunks so that was good


i ohm'd out the stock motorcraft wires just for compareison to the msd and WOW

50-60ohm's for the msd

4-6Kohm's for the motorcraft 4000-6000

thats insane
if anyone knows ohms law's its
I=E/R

so the msd will dish out a hell of alot more current the the motor craft will
just a FYI

i tried to get to the fuel filter but cant reach that SOB!

just waiting for my tune now and gonna get a CAI for summer and she is all set while i do the suspension on my 04 lightning


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Old 03-29-2008, 06:12 PM   #2
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You can't use a standard ohm-meter to measure ignition wires. You need a high-voltage sine wave generator. There are chemical reactions that take place on the wires that prevent accurate readings from your typical low-voltage ohm-meter.
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Old 03-29-2008, 07:09 PM   #3
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You can't use a standard ohm-meter to measure ignition wires. You need a high-voltage sine wave generator. There are chemical reactions that take place on the wires that prevent accurate readings from your typical low-voltage ohm-meter.
thats not true

a digital ohm meter is capable of reading accurate results into the low mega ohm's

you dont need a meggar to check them

and what do you think a sine wave generator is going to do?

nothing special
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Old 03-29-2008, 07:38 PM   #4
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Yes it is true. You will find that used ignition wires report lower resistance with higher voltage measuring devices like an oscilloscope. Your typical 2 volt Radio Shack ohm-meter will show higher resistance.

This is due to chemical build-up on the wires. I don't know the exact science to it, but it's true. Low voltage devices do not break the chemical bonds, so you end up with a high resistance reading. Using an oscilloscope to measure the resistance while using the firing voltage that the coil would put out would reveal lower, more accurate numbers.

I had measured my old used Motorcraft wires up to 15kohms using a 2-volt ohm-meter... they shouldn't even work at that high of a resistance.
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Old 03-29-2008, 09:26 PM   #5
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thats your problems radio shack meters suck


i work for the government as an electrical electronic engineer we use fluke meters
200$ a pop just for the cheap ones i work with power all day everyday you information if very flawed

oscilloscopes cant measure resistance i dont know where you got that info from
but i can tell you have no electronic background
a megars is way overkill we use megars for SCR's thats about 20-200Mohm's
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Old 03-29-2008, 10:41 PM   #6
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whered u get the msd's and for how much. how hard is it to re-fill the tranny fluid?
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Old 03-29-2008, 10:43 PM   #7
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Big whoop, you used a Fluke meter. So you got 9 volts through those wires instead of 2. That's nowhere near the power the ignition coil puts out. I used Fluke meters all day long when I worked as an HVAC contractor. Try not to assume so much.

If you really think my information is flawed and I have no electronic background, feel free to prove me wrong.
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Old 03-29-2008, 11:05 PM   #8
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Quote:
Originally Posted by lowzx3on17s View Post
whered u get the msd's and for how much. how hard is it to re-fill the tranny fluid?
CFM has the wires for $50.60
http://focus.c-f-m.com/index.asp?Pag...ROD&ProdID=715

I'm a Taylor Thundervolt wires fan, myself... $46.39
http://store.summitracing.com/egnsea...115+4294785089
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Old 03-30-2008, 12:43 AM   #9
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Big whoop, you used a Fluke meter. So you got 9 volts through those wires instead of 2. That's nowhere near the power the ignition coil puts out. I used Fluke meters all day long when I worked as an HVAC contractor. Try not to assume so much.

If you really think my information is flawed and I have no electronic background, feel free to prove me wrong.
i would never use you as an hvac contractor i have my universal and just because the battery is 9v in ohm mode its more like several hundred ever herd of op amp's
so then how can we measure resistors with ohm meter's? there a composite material and range from 1-10000000
by your logic we wouldn't be able to measure resistors over 4kohm
shows what you know about how metering devises work



you should quit while your ahead and stop throwing out information you know nothing about
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Old 03-30-2008, 12:45 AM   #10
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Originally Posted by lowzx3on17s View Post
whered u get the msd's and for how much. how hard is it to re-fill the tranny fluid?
it took about 30 min to drain and fill very easy

i got the msd wire's of summit i think c f m was out of stock when needed them on my old svtF
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