Which coil is best for direct coil drive wasted spark?

This forum is for discussing ignition setup, tuning, and troubleshooting for MS-II. Click these links for info on GM's HEI, EDIS, direct coil control, others.
Forum rules
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.

If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.

If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days

The full forum rules are here: Forum Rules, be sure to read them all regularly.
Post Reply
TheShagg
MegaSquirt Newbie
Posts: 9
Joined: Sun May 16, 2004 7:05 pm
Contact:

Which coil is best for direct coil drive wasted spark?

Post by TheShagg »

I presently have an EDIS-8 system, but I am investigating direct fire.

I hate the spark plug wire connector towers on the EDIS system, so something like the mitsubishi / dodge coil pack shown here looks nice: http://www.msdignition.com/Products/Coi ... 96-on.aspx

Are there any other good, compact systems? Having four single-coils would take up too much space.

Or I could stay with the EDIS. I hear the Accel coils are nice? Is there a simple way to make custom length plug wires?
Matt Cramer
Super Squirter
Posts: 2951
Joined: Sat Jul 03, 2004 11:35 am

Re: Which coil is best for direct coil drive wasted spark?

Post by Matt Cramer »

Let me put it this way... last time we replaced a well used stock coil with an Accel Super Stock, the car lost 5 horsepower. That MSD coil seems to be a decent one though.
trakkies
Super Squirter
Posts: 1162
Joined: Tue Dec 30, 2008 3:06 am
Location: SW London, UK

Re: Which coil is best for direct coil drive wasted spark?

Post by trakkies »

TheShagg wrote:I presently have an EDIS-8 system, but I am investigating direct fire.

I hate the spark plug wire connector towers on the EDIS system, so something like the mitsubishi / dodge coil pack shown here looks nice: http://www.msdignition.com/Products/Coi ... 96-on.aspx

Are there any other good, compact systems? Having four single-coils would take up too much space.

Or I could stay with the EDIS. I hear the Accel coils are nice? Is there a simple way to make custom length plug wires?
Can I ask what you don't like about the EDIS plug lead connectors? Is it just looks - they work very well indeed.
Dave P, London UK.
Rover V-8
MSII V3
EDIS
Tech Edge Wideband
TheShagg
MegaSquirt Newbie
Posts: 9
Joined: Sun May 16, 2004 7:05 pm
Contact:

Re: Which coil is best for direct coil drive wasted spark?

Post by TheShagg »

trakkies wrote:Can I ask what you don't like about the EDIS plug lead connectors? Is it just looks - they work very well indeed.
I would like to do custom length wires, and have more selection. Some of the explorer wires I got are just tooo long in places.

Beyond that they seem OK. I just hate going off the beaten path of standard interfaces.
2milehi22
MegaSquirt Newbie
Posts: 8
Joined: Tue Jan 24, 2012 12:12 pm

Re: Which coil is best for direct coil drive wasted spark?

Post by 2milehi22 »

Here is a Northstar coil pack that I modified to work with an EDIS. The coils use a HEI plug.

http://www.msextra.com/forums/viewtopic ... 94&t=37780
trakkies
Super Squirter
Posts: 1162
Joined: Tue Dec 30, 2008 3:06 am
Location: SW London, UK

Re: Which coil is best for direct coil drive wasted spark?

Post by trakkies »

TheShagg wrote:
trakkies wrote:Can I ask what you don't like about the EDIS plug lead connectors? Is it just looks - they work very well indeed.
I would like to do custom length wires, and have more selection. Some of the explorer wires I got are just tooo long in places.

Beyond that they seem OK. I just hate going off the beaten path of standard interfaces.
It's not difficult to make up your own leads for EDIS. You can buy the coil plugs (and spark plug ones) new - or re-use ones from a scrap yard. That's what I did.
Dave P, London UK.
Rover V-8
MSII V3
EDIS
Tech Edge Wideband
Post Reply