Let's say I was going w/ 2 leading coils and 2 ignition boxes then. Would it be better to go with 2 aftermarket igniters or to just stay with the stock one? Also would it be enough to just upgrade the leading ignition system and leave the trailing alone, since the leading does most of the work and it would be a lot easier on the wallet?

 

In the case of a stock igniter wire that goes to the + terminal of the dual output coil is constant 12 volts(IGN). The wire that goes to the - terminal of the coil is the one that actually goes through all the changes to fire the coil. The - wire can only be wired to one triger on a single DIS-2. If you were to join both inputs on the DIS-2 to my understanding the unit will not work. However you could wire these(+-) to 2 cranes or 2 Digital-6s, 2 MSD6As, ETC......



Someone should call and ask them if the DIS-2 is able fire two of its output channels at the same time. The answer should be no.
I would really want someone to confirm that I don’t know what I am talking about.
And if so, then RETed my apologies.
Thanks for the link . I could not find my manual after so many years.
http://www.msdignition.com/pdf/dis2_dis4.pdf


You could wire two Cranes or MSD-6As etc to your stock leading igniter.
If you are using the E6K then all your igniters that is being connected directly to the E6K has to be able to be fired by the same type of input signal. Meaning, do they all fire on a rising signal or a falling signal. Do they need constant duty or constant charge. That is why my first response to Poweraxel was to buy an extra crane and two coils which would be the cheapest way out for him.

 

JUST MY EXPERIENCE!!!
Rang that phone number about 18months ago. Gave the guys my requirements and explained the Microtech MTX ignition system I had been using. After several phone calls the combo was to use 1 DIS2HO on the leading and 1 DIS2HO on the trailing, as I already had 16v boosters I used these also. Upon MSD's advice I used 4 Bosch Hec ignition coils that MT uses standard. I could not understand but I did what I was told by the experts.
On the dyno the engine wanted more fuel and sounded very sharp. I thought I was on a winner.Tuned for the same AFR as without the MSD. Went to the track for the big test.
The car had previously run consistent 8.3 @ 160mph (no gas), as I was testing we left the little blue bottle at the workshop( Sorry Judge ITO). First two runs with good AFR and EGT, 8.77@153mph, WTF?
Now the DIS@ comes with a bypass plug that allows you to run back to std. An easy test so we by passed the lot and run her down again. 8.31 @ 161mph.
No horror stories, just the facts!
I havent given up because I do not believe the coils are compatible, this does however make me wonder whether I spoke to a technician or a salesman at MSD.
Just my experience thus far!
- Anthony

 

do you really like helping people, or do you just enjoy trying to make them feel stupid when you do?

Ted, get off your Goddamned Soap box!!! I'm not sure of who you immagine yourself to be, but i can tell you with 100% confidence that you are NOT that person!! I for one am sick of your little arogant attitude, and I am sure that I am not alone in feeling that way. Many ppl on here put up with your ****, but I'm just not built that way. Is this the same arrogant tone that you had with your customers at K2RD? If so, I can see why it was so succesful. Why dont you get a job at PFS? you and peter could argue all day about which of you is the more arrogant *******!

sorry i have no tech info to add to this thread, but i had to get that off of my chest.

 

To anyone who read my previous reply before I edited it. I would like to apologize. I was very upset over an unrelated issue at the time I posted. My comments were unprovoked, and inappropriate.

While I do feel that Ted has a tendency to rub people the wrong way, I realize that he was trying to help this guy figure out his problem, until I replied and fucked this thread up.

I have deleted most of the offensive comments from my previous post, because I am embarrassed that I posted them in the first place.

That said, let’s move on. I don’t think we have a clear answer to poweraxel's original question yet. does anyone else have any constructive input?

 

Poweraxel, I am running two crane Hi6 boxes with matching LX92 CDI coils on only my leading plugs...so far so good from my experience.

I can start the car in 0 deg C weather and it will idle on B11EGV plugs (1100rpm) from stone cold after holding revs @ 2500 for 10 to 15 seconds.

I have no cold misfire on first throttle aplication or while running water injection whereas before running hotter plugs I would have these problems of misfire. It opened up a new world of performance for me in that it freed up the heat range I could use, and allow the use of a more conventional plug gap + use of harder to ignite fuel (higher octane + richer mixture + water) basically made the parameters much safer wich allowed much harder engine tune (I run 1.5 bar or 21.75psi boost on 98 ocatne pump unleaded fuel)

I use 100 Ohm resistance leads (from coils to plugs). I deliberated on which setup to get and in the end I guess made an economic decision on the Crane units cause they came packaged with the coils, the difference it made on my car was quite marked and I recommend it totaly in this configuration of one CDI and CDI coil per leading plug. I got the idea of another forum member who runs the same set up and swore by it.......I give it the thumbs up too.

There are many ways to skin a cat as you know, so there may be other options for you, but I would try using one CDI per leading plug with the matching Crane coil (if you do not already have it) for the maximum performance ...... I am a CDI novice though.

The brand of ECU I run make a 4 channel CDI unit which is designed to run two rotor engines, I have not tried one but they are realy popular with circuit racers in my country who are running turbo engines around 36 psi !!! I did not buy one though cause a bit like Anthonys experience they recommend to use the Bosch coils and I thought that on paper the Crane set up delivered more performance (if only to the leading plugs)

I would say use what you got, it will be different to what you got now cause you are dividing the output of the CDI over two plugs and I presume you are using a non CDI coil (stock?) ... try the set up with one CDI (and matching CDI coil) per leading plug, I think you will be impressed.

regards.

 

yes i know the Crane units are awesome..i currently run 3 crane boxes to the 3 coils...
well now i want to run 4 coils and 4 boxes..i was hoping i could run (2) 2-channel amps to save the weight and fitment issues...i think im gonna have problems runing a 2 channel amp to fire the 2 leading coils at the same time, due to charge time problems between the 2...so im just goona go all out a run 4 crane boxes and 4 crane coils

when i get it done ill post results