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can i fire the stock coils with an external ground source?

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Old 01-01-2005, 07:40 AM
  #21  
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If you over dwell the coil fires. Then you have to release the control signal before the coil can be charged and fired again. You have to calculate the time you want the coil to fire and then subtract the dwell time. Then have the MCU turn on the coil at the calculated time. This is where a TPU (time proccessor unit) comes in handy. The problem arises that you now are required to have 8 control channels unless you use a wasted spark system.
I did use a +12v signal to fire the coil. I would imagine that it has protection diodes to clamp the control signal. A constant 12 v control signal would eventually take its toll and increases the chances of failure. In my opinion anyways Sometimes it has to be taken as just that, an opinion.
Old 01-01-2005, 08:32 AM
  #22  
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FWIW, here's the base dwell time (ms) table and mutliplier table for the LS1. (the temps are in degC in the pic)



Old 01-25-2005, 10:46 PM
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why use the sing coil packs at all, just go with wasted spark coils from early to mid 90s DIS engines. I got (10) dual tower coil packs from the junk yard last week for $25.00, very cheap, and the power output is good as well. I have run them on my EDIS 8 setup.

i just installed EDIS 8 on my vortec 6.0L i'm swapping into my 67 pickup

all I did was used a $20 crank pulsator from a 1998 mustaing with 4.6l SOHC, machined out the center to an interference fit to the front seal outside diamater. I also machined the same OD of the ballancer hub aprox .100 inch towards the pulley, for extra room for the thickness of the pulsator ring.

I used a crank keying kit from a procharger install kit, so if i remove my ballancer i can install it back in the same place.

then all you have to do is mount a sensor. see pics below.


Old 01-25-2005, 10:54 PM
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we came to the same conclusion on the coils, just easier to run the ford coils.

are those pic's of the 6.0? this helps a ton, thanks.
Old 01-26-2005, 09:30 AM
  #25  
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Great work, Busta9876!!!!


I'm doing my first EDIS install on a 2000 Mustang GT, and we learned that the Coil On Plug setup is NOT agood idea to try to run in wasted spark mode. Fortunately, we let someone ELSE fry their EDIS modul to figure that out for us...



You are a true pioneer, basically about 300 people are going to copy your methods over the next couple years here. Excellent job, and thank you for the pics and PM advice you've given us the past few months.

-scott
Old 01-26-2005, 05:37 PM
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yes the pics are of the 6.0L

the balancer is actually that of my 8100, but its exactly the same process to mount the pulsator ring, just slightly different OD on the balancer hub that is it!



i could have used something else for spacers, but the nuts seem to work fine!

Last edited by busta9876; 01-26-2005 at 06:09 PM.
Old 01-26-2005, 05:41 PM
  #27  
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that is sweet. i will be doing that very soon.
Old 02-03-2005, 04:19 PM
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Parish we need to get on this. EDIS is so easy to do...

THanks Busta9876 for being a kickass megasquirter. Your pages and documentation are excellent...

-scott
Old 06-18-2005, 11:34 AM
  #29  
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Parish have you done or are you planning on doing the EDIS conversion? I am about to call Erik at HPE and see if he can add this to my 6.0 motor before he ships it to me as it would make life sooo much easier.


Busta - have you run this setup yet? Any problems? Tips?


Greg
Old 06-18-2005, 03:32 PM
  #30  
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no, never got around to it.
Old 06-18-2005, 04:56 PM
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Originally Posted by parish8
no, never got around to it.

Do you plan on doing it in the future? It doesn't seem too hard.


Greg
Old 06-18-2005, 05:21 PM
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okay here's some more info on the exact parts needed for your EDIS setup. this is what I used.

I used a junkyard EDIS8 ignition module and harness pig tail from a 1992 Lincoln Towncar with a 4.6L

You can use the trigger wheel from the same car if you feel like pulling the timing cover, chains and pulling it off the crank, or go to your ford dealership and order part F2LE-12A227-BC for about $20.00. thats what I did.

I used a sensor for an early 1990s ford escort, 1.9L SOHC, this sensor has two ears that makes it easy to mount to a flat bracket like pictured above, its about $20 from Autozone.

My coils are GM DIS coils, you can get them new not sure on the price, but I used junkyard ones. I got a bunch of them really cheap, like a few bucks each. GM DIS coils use a regular HEI type spark plug boot, so all you need is a custom spark plug set, like Accells Universal or a MSD 8.5 Universal kit.

I think the Ford coils are of just equal quality and probably have the same spark output, if you want to buy the special spark plug ends for those coils.

I just like the look of the GM DIS coils, look on the cover (or page 26) of Chevy High Performance mag (aug 2005) , 4 coil packs mounted on the firewall in a row, very sweet looking. they also shaved the valve covers to make them smooth, looks awesome.

the bracket i custome made with a jigsaw, drill and some guessing.

the ballancer and crank trigger wheel will have to be taken to a machine shop and made to work.

I'm currently running Megasquirt Extra code, i have fan control and am building a circuit for knock sensor.


another thing i just learned. the LS2 and new LS7 use a different crank trigger wheel mounted to the crankshaft. they use a 60-2 wheel now, which is an industry standard for crank sensors. Megasquirt extra has code in it to decode that crank wheel directly. now what extra hardware is needed i dont know i have not looked into that. but if you can order a trigger wheel from one of those engines, and mount it on your crankshaft, you could have megasquirt doing sequential injection and coil on plug ignition. a lot more drivers will have to be added to the megasquirt hardware, pretty sure Megasqurirt 2 will be required for that. i will probably be venturing in that direction as soon as i get a hold of a MS 2. Page 68 of chevy high performance shows a picture of a 60-2 wheel welded to a LS1 crankshaft.

anyways, enough for now, i gotta get out to the local dirt track tonight, some late model action going on! later!
Old 06-26-2005, 03:25 PM
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wouldnt it just be easier to use the ford coils?
seems pretty simple, just get them and do the wiring, or is it not that easy?
ed
Old 06-26-2005, 10:21 PM
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Originally Posted by 69firebird
wouldnt it just be easier to use the ford coils?
seems pretty simple, just get them and do the wiring, or is it not that easy?
ed
I already had a set of MSD Super Conductor 8.5mm wires that were on my HEI dizzy in my other car. The special ford ends are somewhat expensive. i had the DIS coils laying around so i used them. only took a hour or so to make a plate to mount them on. I used the flat spade type crimp terminal and they pushed into the back side of the DIS coils. I also being a chevy person would like the least amout of FORD possible on my chevy.

my next install the coils will be under the dash, wires will pass through the firewall for a cleaner look.

ive got a 1995 LT1 383 stroker i'm configureing with EDIS and Megasquirt going into my 1962 Impala. i'll have pics soon of the EDIS setup.

I'm working on a bracket to mass produce for the 6.0L holding the Escort crank sensor. should also work on the LS1, 4.8, 5.3, 6.0.

later

Brendan.



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