Ok so once again im back with ignition questions:



I have:

Wolf 3d V4

4 MSD Blaster SS Coils.



I'm leaning towards going for 3 MSD 6a's, however im still considering the AEM C2DI unit.



Now i'm just trying to figure out, if i run the MSD's i'll have to use ignitors as well? How many would i need and would this still make for a strong ignition system since id probably have to use an FD ignitor or something?



If i use the AEM C2DI, would i need an ignitor as well?



I was really hoping to be able to run it "Wolf->MSD's->coils" Nevermind the fact that id have no idea how to wire up 3 MSD's to the ignitors and four sperate coils.



please help,

kevin.

89TII



stock ignitor

Stock ecu w/ apexi safc wired to pressure sensor + paul stoakes FCD

Stock trailing coils and igniters



Two Crane Hi-6, Two Crane lx92 coils for leading using stock ignitor.



Need to find some wires, anyone have any suggestions, those crane 8 mm wires are pretty good price, especially V8 ones, I could make two sets with their universal one.

The best ignition setup for your RX7 would be an MSD Digital 6 plus ignition for your leading coils, and an MSD DIS-2 ignition for your trailing coils. I always recommend getting four new coils such as the blaster SS coils- but you already have them. If you need any of these items, they are all available at my website-

DeWitt Racing. Thanks-

I am in the market for an ignition also. Has anyone checked out the jacobs ignition. I think it is on rx7.com and it says it is designed for the rotary. I was planning on getting one when I finally get enough money to get my fc rolling.

Unfortunatley we had a very in depth thread on here which I started with my MSDD-6. 83TURBO was currently load/application testing the AEM ( which kept burning up drivers), MSD ingitions(6A/AL,7AL), the problems different coils would give drivers. He gives actual performance numbers and losses in which many of us asked. It got lost. I will say this I sold my Dis 6. Go to the basic MSD with Blaster coils but you will need no less than three ingitors. Myself I have a little more than that.Jacobs... he tested & it didnt do what they claim and didnt feel it worth the money but its up to each of you to decide.Sorry we lost all the data.

might be helpful https://www.nopistons.com/forums/ind...howtopic=45480



https://www.nopistons.com/forums/pub...#>/biggrin.png

hmm now all i need is a distributor, or so it soudns according to that topic. MSD's get hell of a praise but i guess i need eitheer 3 fd ignitors or a distributor. or am i reading the topic wrong?



kevin.

you dont need a distributor (although you could) the cas sends a signal to the ecu which fires the ignitors which fire the coils.



when you add the msd's i think you either get rid of the ignitor or its goes between the ignitor and the coil.

yea ok i thought you were suggesting i run a distributor, lol.



yea ive finally figured out that to run the msd's i need to run some ignitors as well.



everyone says run fd ignitors so i figure ill be running 3 fd ignitors to 3 msd 6a's, to 4 msd blaster ss coils, try to find some short spark plug wires and try to setup the whole thing to be relatively near the spark plugs for a nice short distance spark, and then thatll be that. unless i can make my own plug wires somehow lol.



kevin.

fd ignitor is 3 channel, so you only need one ignitor. try and get the plug for it too, its "weird"

Kevin,



Don't run 3 MSD's...run 4. I'm assuming you will have 1 MSD per trailing and 1 MSD split to two seperate coils for the leadings. That ONE msd for the leadings will be overworked. Split the signal from the ignitor to two MSD's and run 1 MSD to one SS Blaster to one leading plug.

ok so now based on j9's and jspec's advice i have concluded to this setup.



wolf v4

to

1 fd ignitor

to

4 MSD 6a's

to

individual coils per plug



does that sound reasonable?



Oh and j9, on the "other" forum in the wolf discussion forum they actually have a conversion thing for the fd ignitor in case you dont have the plug when you buy it or whatever. and just the break down of how to wire it to the wolf without the plug is pretty confusing.



kevin.

you could also run like 3 fc leading ignitors if you wanted too, its easier to find

I use Redline Rotary Ignitor boxes x 2, and Redline Rotary coils X 4. I have never seen spark like what this setup creates anywhere else. Its insane. After using these, i have not used anything else since. I also use a Wolf 3D version 4. and the best part about this, is it is very compact. The ignitor boxes are only about 2 1/2" x 2 1/2 " x 1"

This is an Old pic I found of the Igntion setup on my race car. I don't take many pics. the engine/Turbo setup looks nothing like that now. You can see the Two Ignitor boxes on the firewall. The coils, I'm sure you can see where those are https://www.nopistons.com/forums/pub...IR#>/smile.png





Igntion setup

never heard of redline rotary before..link?



kevin.

its also called Alex Blackson Automotive. it is in Australia. He has not updated his website in ages. Hes so busy he hasn't had the time. Redline Rotary



hes a good friend of mine. the guy really knows his stuff.

woe...I may be mistaken..but on a second gen there is the cran-angle.Thats is the same as the FD pickups.The MSDetc... ARE the ignitors. You will tie into the cran angle wiring for signal pickup.By the way this same setup can be used on FB.

Dont piggy back ignitors into the aftermarket boxes.

yea on FC's there is a crank-angle sensor.



this is what ive been trying to figure out through this whole discussion, it seems that you know the answer.



I dont "need" ignitors, the MSD 6A's are the ignitors right?



On my wolf 3d v4 it has 3 ignition outputs, and the crank-angle is one of the inputs. so is it safe to say that it uses the CAS instead of me needing ignitors as well as MSD's?



kevin.

No one else has said anything about jacobs. Has anyone used one of their ignition setups? I am installing a Haltech and don't want to begin until I have every part I may need. I know MSD's reputation. My friend has a car that runs 9's. He has a MSD. If I bought coils, they would be MSD's. The Jacobs rotary ignition seems that it would be a good choice. Someone has got to know something about it?

Overhyped...overpriced.





-Ted

jacobs is garbage

*DP*

yea, even when i was working on my jeep, everyone with a jeep said jacobs was ****, so i dont give them a look over.



OK so anyway here's the enw gameplan that has been proven to work, by our own mr. mazdadrifter, with one minor mod by me. This is what i will be running.



FD Ignitor is 3 channels.

I have 4 MSD Blaster SS Coils.

2 of the ignitors channels will, individually, be running 2 coils (1 channel per trailing coil.)

The remaining single channel on the ignitor will be split to seperate MSD Boxes.

From each box it will go to the remaing 2 leading coils.



here's an image, much easier to comprehend.





https://www.nopistons.com/forums/index.php?...e=post&id=27941



any comments?



kevin.