Yes, that was me. Search for "David Hayes" and you'll find the conversion thread. The new MSD ignition AMP setup and coils recommended by Crispeed have done the job - no more ignition breakup! See what $1,300 can do? Anyway, the car is now tuned to 15 lbs. of boost and is making a little over 500 WHP on the Gotham Racing Mustang dyno. Factoring in a 10% difference for conversion to a Dynojet, that's a little over 550 RWHP. Steve Kan is uncomfortable tuning at any higher boost levels because he doesn't want to blow the engine at this late stage in the project. Guess I can't blame him after having the car for 9 months. Forgot to ask him about torque but I'll post the dyno when I get it.

 

Congrats David.
I hope now you can finally enjoy what you've been waiting for all this time. It always good when there's a happy ending.

 

^Thanks for the help and the recommendation. I've asked Steve to take it to 16 lbs. of boost and then I'll call it a day. Never satisfied am I?

 

where about in FL are you? I'm glad they got it resolved, I'm having the same issues, maybe this is something i might try as well.

 

^In the Jax area. Ignition is now rock solid with no breakup.

 

Can this MSD setup also be used with a microtec?

Im having what seems to be breakup issues above 6000rpm and am currently using bosch coils

 

^See your PM. Don't know why it wouldn't work with the Microtec. Crispeed, what do you think?

 

Depends on the setup in the Microtec. Some need to be configured to trigger an MSD directly. No experience with Microtec in that department but I've seen it done many times. MSD's require a 12v trigger level and some ecu's are configured for 5v to trigger factory type ignitions. Then the firing 'Edge' also have to be configured for the MSD. One of the safest and proven methods to use a MSD is to wire it in between the ignition coil and igniter.

 

Thanks for the input, the LTX-12s Im using has built in ignitors, microtec claimed the ecu should have no problem with ignition breakup but their is obviously some problem.

I will try to figure things out ove the winter, too bad ignition is where I have the least experience.

 

I called and spoke with Jon at Microtech on Thursday. I'm running the AEM CDI and the MSD DIS racing coils and having some major problems. He told me to throw the AEM in the trash (it has fried numerous Microtech's, including mine) and get different coils.
He said with the LTX12 you can run up to 30psi with just the internal Igniters and the MSD Blaster SS coils. He said he's done it on numerous 20b's with excellent results.

 

Jon said the same thing to me, when we spoke. I recently melted the coil drivers in my ecu.

I have bosch coils, so I might try the MSD blaster ss coils before I start buying $500+ ignition boxes.

But if you are already using the MSD DIS racing coils, will the MSD blaster ss coils make much of a difference?

It looks like we both have similar issues, lets try to figure this out cause I really want to find a solution soon.

 

Basically the DIS coils are for use with an MSD Ignition system only. And since we don't need to use one, they are not the best for it.
The only reason I'm using them is because they came with my motor, as did the AEM Ignition amplifier. I thought they'd work fine, until now.
I'm shipping my Microtech to him on Monday, so hopefully I'll have 6 new coils, and a new bracket built by the time I get the Microtech back.

Here's the specs for both.
http://store.summitracing.com/partde...?part=MSD-8207
http://store.summitracing.com/partde...?part=msd-8230

 

So basically your advise is that ,2 X MSD DIS-2 & 6 X 8207 will work the best for a 20B

 

OH and I plan on running a microtech THANKS

 

congrats on getting it resolved.

 

Not quite if you are 20b. Per Crispeed, this is the setup that worked best for me:

6 X 8207 MSD Blaster Coils with 2 X DIS-4 plus ignition boxes.

Note the MSD boxes are DIS-4s, not DIS-2s. A DIS-2 can only handle 2 coils at a time so if you are 13B, 2 of these will work for you. If you are 20B, then you need the DIS-4 units. Also, don't order the HO units, they'll burn up your coils in short order and are meant strictly for racing. I ordered these and then had to return them.

 

anderdick88-
I asked him if I would need to run an ignition box, and he said no. The Microtech igniters inside the LTX12 do a fabulous job.
I'm sure you could if you wanted. I'm going to try it how he suggests first, and if I really need to, I'll get a set of MSD DIS boxes.
If it turns out I don't need them, then I saved some money, and if I do, then I'm just out a few days.

 

I have heard tons of bad things about the Microtech X series. I encourage you to research before placing alot of confidence in them. As with all things, there are a million opinions, and its obviously up to you to make your own decisions. Personally, I went with the e11v2 over the microtech for a number of reasons, this was one of them.

 

Is it really neccessary to run an ignition amp for the trailing plugs?

 

Trailing spark creates ~10% of your power. I'd say it's worth it. Complex ignition system, but I think some LS1 or LS7 ignition coils would be a much simpler setup. Glad you solved your ignition problem. Those can be a bitch to chase down.

 

Just to revisit this thread because I'm following in David's footsteps and just ordered 2 x MSD DIS-4 and 6 x 8207 Blaster coils; I have a quick question about wiring:

Is it ok to run the Brown/Orange wire from the DIS-4 (which is marked "Coil (+) High Voltage) to all 3 coils?

Everything else seems simple other than what the best way to provide + to the coils - previously I had wired my IGN +12v to all 6 LS2 coils, but now the IGN +12v goes into the Red wire on the DIS-4 harness and I assume it's ok to wire the Brown/Orange from each DIS-4 to all 3 coils.

Please advise, thanks in advance

 

Calling Crispeed to answer this one!

 

Thanks, so just to summarize my wiring plan (for the leading DIS-4):

IGN 1, 2, 3 from Haltech harness -> White, Green, Yellow (Trigger Inputs 1-3) on MSD harness

IGN +12v from chassis harness -> Red (IGN 12v) on MSD harness

Brown/Orange (2 wires) from MSD harness (Coil + High Voltage)-> Coils L1, L2, and L3 +ve side

Brown/White, Brown/Green, Brown/Yellow (Coil - channel 1-3) -> Coils L1, L2 and L3 -ve side

My only concern is the Brown/Orange wires - my plan is to wire them both to coil 1 +ve side then connect that to coil 2 +ve side then from coil2 +ve side to coil 3 +ve side, like a mini harness. Does the above look good?

 

Doesn't matter...
I think those Br / O wires are spliced inside the unit, so it doesn't matter how you connect them.
I believe they are higher than +12VDC though, since the CDI steps up the voltage.
Up around 400 VDC?


-Ted

 

So that should be fine to piggy back onto the 3 coils, right? 400VDC sounds kind of scary though!