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| Would this Work? https://slantsix.org/forum/viewtopic.php?t=12823 |
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| Author: | 73dart_swinger [ Sun May 01, 2005 6:18 pm ] |
| Post subject: | Would this Work? |
I know I've asked quite a few ignition questions now, but one more. Would it be possible to hook the original electronic ignition module up and then just not attach the original wires to coil and distributor and hook the wires to the msd up instead? Or would this cause some electrical problems? |
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| Author: | argentina-slantsixer [ Sun May 01, 2005 9:25 pm ] |
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and what exactly would be the purpose of doin this? |
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| Author: | 73dart_swinger [ Tue May 03, 2005 11:15 am ] |
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There's not really a reason. I was just asking if it was a possible option without causing any problems. |
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| Author: | argentina-slantsixer [ Tue May 03, 2005 9:26 pm ] |
| Post subject: | |
if you ask me, I think that simple is good. I chopped off all the original ignition wires, replaced those with new wires, good quality soldered type connectors... etc. I can tell you how I did my MSD installation (sorry if I whisper, is just so SSD can't listen to us) I used I1 and I2 together right off the firewall connector to feed the MSD light gauge red wire. I connected the heavy wires directly to the bat. I had to add some lenght to those wires wich I did by cutting the connector end and adding soldered extension wires in the middle so I kept the original MSD presson connectors (call me a geek, you're welcome) Then I chopped off my previous dist harness (the wiring harness portion) and soldered that connector to one short plug that matches the MSD electronic ignition dist connector (violet/green?) and I twisted those wires together (for avoiding undesired interference they say and so I did..., Y don't know if the information is 100% correct. Mine works just heavenly). I mounted my unit on the passg side inner fender, coil is a MSD blaster 2 mounted on original location. If you need a pic of my installation just let me know and I'll be happy to help. Take care. Juan |
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| Author: | 73dart_swinger [ Sun May 08, 2005 8:19 pm ] |
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I was wanting to mount the MSD somewhere where it wasn't visible and keep my car looking stock under the hood. Does anyone know if having the original ECU plugged in, but not hooked up to the dist. and coil and hooking up the MSD instead cause any problems electrically? |
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| Author: | ShivaDart [ Sun May 08, 2005 9:57 pm ] |
| Post subject: | |
MSD has a piggy-back CD ignition that uses your stock ignition and somehow makes it capacitive discharge at lower RPM's(don't ask me how, this is all "magic" realm to me), cheaper, and might work better for you. I'm sure either Jegs or Summit Racing would have what I'm talking about. IF you want a stock look MSD in general might not be the best idea, I like mine a lot but I was more than happy to scrap my old ignition system. |
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| Author: | kesteb [ Mon May 09, 2005 2:03 pm ] |
| Post subject: | |
The MSD 6 module can be used to replace the stock ECU. Check the MSD site for the wiring diagram. |
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| Author: | 73dart_swinger [ Mon May 09, 2005 9:18 pm ] |
| Post subject: | |
I understand that it is a replacement for the stock ecu. I guess ya'll aren'tunderstanding what I'm trying to ask. But anyway, another question. What exactly do ya'll used for a switched 12 volt source. Everything I can find has power with the key on but loses power when you try to start the car. Is this normal? Is that what should happen to the source to power the MSD? I have the stock ignition back on the car now so I could just start it. Can anyone offer me some advice on this? |
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| Author: | argentina-slantsixer [ Tue May 10, 2005 3:36 am ] |
| Post subject: | |
the chrysler ignition wiring is amazingly complex compared to other makes. You get power before ignition thru I1 and then after ignition, when running, trhu I2. If you're going MSD you have to bond those together. If you decide to go MSD I can send you correct wiring diagrams for your mopar (The diagrams in MSD booklet or web site sucks, ain't clear enough) |
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| Author: | '74 Sport [ Tue May 10, 2005 6:20 am ] |
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swinger, I think I understand what you are asking. For stock look only, you could simply get another ECU connector with pigtails of the wires still attached. Plug it in as a dummy decoy and hide the MSD out of sight. Then it would absolutely not be a factor. Is that what you meant? Jerry |
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| Author: | 73dart_swinger [ Tue May 10, 2005 11:45 am ] |
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thats exactly what i mean '74 Sport. Now I'm just trying to get the MSD to work. I'm about to go do some work on it now. We started the new motor last night but my new thermostat stuck. So today we're checking that there wasn't any damage and that there's no water int he cylinders. Also my water pump is different and has a long snout on it that eliminates the need for the spacers, so I've got to get those out. I'm close to having it going though. |
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| Author: | 73dart_swinger [ Tue May 10, 2005 11:48 am ] |
| Post subject: | |
On the inside side of the balast resistor, there is the plug and a wire connecting the 2. Is that where the MSD should hook up? Thats where we had it hooked last night but it was losing power when the key was turned to start as well. I bought the box used so I'm not positive it even works, i guess. |
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| Author: | argentina-slantsixer [ Tue May 10, 2005 11:13 pm ] |
| Post subject: | |
OK, then, chop the wires from the underdash pack. Your ignition keys has 2 connectors labeled IGN 1 and IGN 2. Wire those 2 along with the small gauge red wire coming outta the MSD. Connect the heavy red and black wires direct to the battery. Untie the cables pack that goes on the passg side of the valvle cover, splice (cut) the ones leading to the dist and connect the MSD ignition green and violet on that ones (check for polarity) then pack all the cables together again using correct stock looking non-adehesive nylon black tape. To finish your pack, just soften a li'l bit that non.adehesive tape with a flame (lighter) and that will bnd it) place your MSD hidden wherever you want except for enclosed compartments such as glove box, and you're done. You can mount your MSD unit in your inner firewall, lets say above the heater box assy. Use a liberal amount of solder on the connections where you needed to extend/shorten cables. A good crmping connectors are useful too. |
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