View Full Version : Which ignition do I use?
07-10-2003, 09:31 AM
I have a 93 Mustang with a 2.3L. It has a Ford Distributorless ingnition system. Which ignition system do I use?? The MSD DIS-2-PN, MSD 5-PN or the MSD 6A-PN...
07-11-2003, 09:29 AM
The MSD DIS2 is for distri. less igntions.
Use the MSD DIS2
07-11-2003, 10:04 AM
Since you have 2 coil packs, one will be for intake and the other will be for the exhaust, so the Dis-2 will only plug to the intake side coil pack, the exhaust will not need a ignition since this will only fire on the exhaust stroke for emissions purposes.
03-24-2004, 12:40 PM
Um hi, nice feature you have here. Thanks for setting this up. I need to revive this thread because I have the same engine in a 93 Ranger.
the exhaust will not need a ignition since this will only fire on the exhaust stroke for emissions purposes
This is a popular misconception. However, on a dyno I lost 8-12 ft-lbs uniformly acrossed the entire power band when I disconnected the exhaust side coil (this result led me here), here is the dyno pull: http://home.earthlink.net/~touring23/Touri...gHTMLBench.html (http://home.earthlink.net/~touring23/TouringHTMLBench.html)
Further, looking at the combustion chamber a person would be hard pressed to distinguish which plug is on which side of the head:
Finally, you should check out the Ford Powertrain manual available through Helm Publishing for a better understanding of this rather eccentric ignition system, and check out these links for the benefits of dual plug ignitions:
On to the MSD equipment. This thread suggests the 6211 and 8912:
But I can't see it as the stock ignition has a total of FOUR triggers for the two coils; the 6211 only offers TWO triggers. This a very important distinction.
Logic would suggest that since the Ford 4.6L DIS has two coil packs, FOUR triggers, and eight plugs, whatever works for the 4.6L (#6215?) should work for the 2.3L DP. Afterall, aren't the 6211/6215 just power amps? Why would they care whether the engine is configured in a Vee or I or whatever? Now, I could see a possible tacho error, but not a power delivery issue. I reckon the #6215 is the correct application but I'm not willing to bet $360 on a SWAG.
*EDIT* Perhaps the question is, will the 6215 allow two triggers to fire simultaneously?
Thanks again for setting up this bulletin board. This really is a great feature.
03-26-2004, 10:57 AM
Will the configuration shown in Figures 14 & 15 of the 6211/6215 installation guide work when the coils are fired simultaneously?
03-29-2004, 10:51 AM
04-01-2004, 10:59 AM
Come on, work with me here guys. At least an honest "we don't know" would be appreciated and respected. I'm losing all respect for MSD at this point.
I have questions about dual plug ignitions too, but in another application. I am running a 70 shovelhead H-D (hemi head). I am looking for a four cylinder ignition that I can modify to use on this motorcycle. Our goals are basically the same. My ignition needs to fire only two plugs simultaneously. I can't see a reason why I can't use an automobile box but I don't know which one to use. Obviously no one at msd has read the message yet.
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