1G Coil pack killed by Dynatek ARC-2

[Dezminator]

Hello everyone! I recently had a problem with my coil pack. I have a dynatek arc-2 install and it was runnin perfectly for several years. But last year out of no where my car would start but die right away (5 to 20 seconds) after lenghty trouble shooting, disconnected the arc-2 and voila, the car starts and run again. But experiencing massive spark blowout at about 4000rpm. (I run at 30+psi) I ordered and installed a new coil pack, reconnected my arc-2 and it worked fine for about 200 miles. Now same issue, car starts but die after a few seconds. Disconnected the arc-2 and it runs.
Did anyone had similar issues? Would my arc-2 kill the coil pack so quickly? I Will install a new coil pack, put new plugs in and close the gap to about .020 and see if I can go to 7200rpm without spark blowout but I would really prefer to have my arc-2 plugged as it runs so much more smoothly. (When it doesn't kill my coil pack)
Thx

You must be logged in to view this image or video.

 

[1990TSIAWDTALON]

No problems with mine up to 9200 rpm. I have mine plug and play though, so if it DID give me an issue, I would just plug the coils back in as stock. I would contact Dynatec.

 

[jpmxrider489]

Have you considered going with a coil on plug? To avoid buying coils. I dont have any experience with the arc2. But I run 33psi on a stock ignition system. Thought the stock oem ignition is reliable to roughly 600hp. Is there a reason you want to run the arc2?

 

[Vegas Smith]

It sounds like the ARC-2 is bad especially looking at where it's installed next to the heat of the engine with all those vibrations. They're known for dying easily.

 

[jpmxrider489]

It sounds like the ARC-2 is bad especially looking at where it's installed next to the heat of the engine with all those vibrations. They're known for dying easily.

Isnt that the common location for the install? They include a bracket right? Where else would you install?

If the arc2 commonly fails, what's the alternative? A msd dis?

 

[Streetsweeper21]

My Arc2 went out spring time. Randomly after the battery died. I contacted them and they replaced it. Recently I blew my engine. After a rebuild I went to start it and no spark. When I took the Arc2 off the bracket. Flipped it over you can see white residue. As if something has burnt up inside. This is the same appearance as the last fried one. So I don’t know if it’s something with the battery being discounted/reconnected or location. If they replace it for me again I am placing it inside the car. I’m definitely afraid to buy a new one but when it works it flawless.

 

[Dezminator]

No problems with mine up to 9200 rpm. I have mine plug and play though, so if it DID give me an issue, I would just plug the coils back in as stock. I would contact Dynatec.

Thx, I have mine plug and play as well, it is plugged back as OEM now so i can move it around. I sent a email to dynatek waiting on a reply.

 

[Dezminator]

Have you considered going with a coil on plug? To avoid buying coils. I dont have any experience with the arc2. But I run 33psi on a stock ignition system. Thought the stock oem ignition is reliable to roughly 600hp. Is there a reason you want to run the arc2?

The previous owner built it that way and it ran fine for several years. I am a newbie so a COP is above my comfort zone at this time. read a lot of good comments about it though. I did not closed the gap on my plugs yet to see if fix the spark blowout problem. (read many others where doing fine with a 0.018 or 0.020 gap with 30+psi, but also others saying that with their arc-2 it idles and run smoother and pulls harder)

 

[Vegas Smith]

Remember that a CDI (your ARC-2) allows you to run more boost/timing/ wider plug gap. Your car is likely tuned to take advantage of the CDI so when you removed it your ignition system isn't as strong hence the spark blowout. You may need to tighten your plug gaps/need to need new or different plugs etc. Every car is different so just because others are doing XYZ doesn't mean your car can. I agree with your initial plan which is to put new plugs in at a tighter gap and see how it runs.

I would also relocate that ARC-2 to a more hospitable place.