Last coil pack

Dvroofer · 04-07-2021, 11:24 PM

I am working on my 1991 240 b230f I’m doing some upgrades and would like to do them in the correct order. I am a week away from purchasing my megasquirt system. My question is should and how do I install a ls coil pack. I will purchase the whole set from yoshifab but have no idea about what is technically involved in the install. I also do not know if I need to do this before or after I get the ecu. Can anyone point me to a post in which this is covered? I’m not sure about any of the wiring and haven’t yielded any search results

dl242gt · 04-08-2021, 05:54 PM

Try using google search to search the site for EZK wasted spark install. The member here user name Duder sells wasted spark kits. I believe you can also use an LS type coil for the wasted spark setup.

142 guy · 04-09-2021, 12:53 AM

Do you know whether you are going to do wasted spark or are you planning for full sequential on fuel and spark with individual coils for each cylinder. That would be a good thing to figure out first because it will determine whether you need just a crank position signal or both a crank and cam position signal.

I suggest that you get the MSExtra Set up and Hardware manuals and read them

https://www.msextra.com/manuals/ms2manuals/

You should be able to figure out what you need to do after reading the manuals or at least be able to ask slightly more focused questions. Read the manuals before making any additional purchases.

If you are stuck on using LS coils, there are a pile of GM products sitting in junk yards with those coils. You can probably get them for $10 - $15 each at a pick and pull if and when you need them. I picked up the four Denso COPs I use on my car for $35 at my local pick and pull.

Jussi Alanko · 04-09-2021, 12:07 PM

You can use an Ls-coil pack in a wasted spark mode.
At least microsquirt is capable of this, so i'm thinking that ms is too.

Dvroofer · 04-09-2021, 04:12 PM

Quote:

Originally Posted by Jussi Alanko

You can use an Ls-coil pack in a wasted spark mode.
At least microsquirt is capable of this, so i'm thinking that ms is too.

That’s what I wanted to know thank you. I understand now I cannot utilize this without either chippable ecu or a standalone system. Ill be googling more info. Does anyone have a link to find how to wire the coil pack into the harness?
Thanks for the help.

bobxyz · 04-09-2021, 04:38 PM

A MicroSquirt with the Volvo 60-2 tooth flywheel/flexplate (from LH2.4 cars) can run 4x LS coils in wasted spark mode. With this setup, the distributor can be removed.
http://www.msextra.com/doc/pdf/html/...dware-3.4.html

You cannot run 4x LS coils using the stock Volvo LH2.4 ECU+EZK setup. If you buy an "EZK wasted spark" board, you can install it within the EZK box to run wasted spark. When you do this, you need to make sure the coil dwell time is compatible with the original LH2.4 coil dwell time.

For you, it's probably easiest and cheapest to convert to MicroSquirt and LS coils at the same time. (Or you could convert to MicroSquirt first and continue using the stock coil/distributor/plugwires, then add the LS coils later.)

Dvroofer · 04-09-2021, 06:36 PM

Got it. Ordering a standalone on Monday Thank you and I found the wiring diagram I’ll need as well.

culberro · 04-09-2021, 06:44 PM

As a heads up, you usually don't need the capacitor for noise suppression on the LS coils.

MikeSr. · Today, 11:27 AM

I have a set of 4 LS coils with a harness and bracket- pm if interested

04-07-2021, 11:24 PM	#1
Dvroofer Board Member Join Date: Jan 2021 Location: Long Beach,ca	Ls coil pack I am working on my 1991 240 b230f I’m doing some upgrades and would like to do them in the correct order. I am a week away from purchasing my megasquirt system. My question is should and how do I install a ls coil pack. I will purchase the whole set from yoshifab but have no idea about what is technically involved in the install. I also do not know if I need to do this before or after I get the ecu. Can anyone point me to a post in which this is covered? I’m not sure about any of the wiring and haven’t yielded any search results

04-08-2021, 05:54 PM	#2
dl242gt Happy playing the blues Join Date: Jun 2002 Location: S NJ, a suburb of Phila.	Try using google search to search the site for EZK wasted spark install. The member here user name Duder sells wasted spark kits. I believe you can also use an LS type coil for the wasted spark setup. __________________ Dave, 1982 242 turbo. 338k miles. MVP coilovers and 3" exhaust. Flowed 405 with a V15. Cossie turbine housing with upgraded compressor housing. 90+, IPD remote oil filter. Some other goodness, too. Been lots of fun over 25 years. Restored in 2k. Now ready for a 2nd restoration. 1993 245 Classic, 430k miles, enem V15. IPD bars and chassis braces. Simons sport exhaust from Scandix. sbabbs ezk chip. Been a good road warrior. Genuine Volvo rebuilt leaky M47.

04-09-2021, 12:53 AM	#3
142 guy Board Member Join Date: May 2014 Location: Saskatchewan, Canada	Do you know whether you are going to do wasted spark or are you planning for full sequential on fuel and spark with individual coils for each cylinder. That would be a good thing to figure out first because it will determine whether you need just a crank position signal or both a crank and cam position signal. I suggest that you get the MSExtra Set up and Hardware manuals and read them https://www.msextra.com/manuals/ms2manuals/ You should be able to figure out what you need to do after reading the manuals or at least be able to ask slightly more focused questions. Read the manuals before making any additional purchases. If you are stuck on using LS coils, there are a pile of GM products sitting in junk yards with those coils. You can probably get them for $10 - $15 each at a pick and pull if and when you need them. I picked up the four Denso COPs I use on my car for $35 at my local pick and pull. Last edited by 142 guy; 04-09-2021 at 12:59 AM..

04-09-2021, 06:44 PM	#8
culberro Ronald Culberbone III Join Date: Feb 2010 Location: Portland, OR	As a heads up, you usually don't need the capacitor for noise suppression on the LS coils. __________________ Cult Person. Pissing in your Kool-Aid.

Today, 11:27 AM	#9
MikeSr. What, me worry? Join Date: May 2003 Location: Acworth, Ga. USA	I have a set of 4 LS coils with a harness and bracket- pm if interested __________________ I coulda had a V8!

04-09-2021, 12:07 PM	#4
Jussi Alanko Board Member Join Date: Jun 2020 Location: Finland	You can use an Ls-coil pack in a wasted spark mode. At least microsquirt is capable of this, so i'm thinking that ms is too.

04-09-2021, 04:38 PM	#6
bobxyz Board Member Join Date: Aug 2014 Location: Boulder CO	A MicroSquirt with the Volvo 60-2 tooth flywheel/flexplate (from LH2.4 cars) can run 4x LS coils in wasted spark mode. With this setup, the distributor can be removed. http://www.msextra.com/doc/pdf/html/...dware-3.4.html You cannot run 4x LS coils using the stock Volvo LH2.4 ECU+EZK setup. If you buy an "EZK wasted spark" board, you can install it within the EZK box to run wasted spark. When you do this, you need to make sure the coil dwell time is compatible with the original LH2.4 coil dwell time. For you, it's probably easiest and cheapest to convert to MicroSquirt and LS coils at the same time. (Or you could convert to MicroSquirt first and continue using the stock coil/distributor/plugwires, then add the LS coils later.)

04-09-2021, 06:36 PM	#7
Dvroofer Board Member Join Date: Jan 2021 Location: Long Beach,ca	Got it. Ordering a standalone on Monday Thank you and I found the wiring diagram I’ll need as well.

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