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MSD HEI mod with external coil

Posted: April 8th, 2013, 5:39 am
by windofire
hey guys.
i got a msd 6al cheap and wanted to install it with a blaster 2 coil or ss, but i got confused about the wiring.

would it work like this? (it's a ze in a '92 mx)
Image

Re: MSD HEI mod with external coil

Posted: April 12th, 2013, 12:43 am
by mazda915
dam looks confusing . I know me and my friend tried on his mx but he had a ems on it and we could not get it to start lol so we wired it normal but u can always call msd .

Re: MSD HEI mod with external coil

Posted: April 12th, 2013, 4:28 am
by windofire
i spend a couple of hours searching and found a nice diagram for msd with external coil on mazda k series.
i also discovered that they have made a harness for k series with internal coil.

Re: MSD HEI mod with external coil

Posted: April 12th, 2013, 12:49 pm
by Daninski
Not sure why you would need to spend hours searching when it's all in our FAQ section.
viewtopic.php?f=23&t=69006
viewtopic.php?f=23&t=53706

or even here. http://www.clubprotege.com/wil/howto/hei/

Gro was the first to post this as far as I know so kudos to him.

Re: MSD HEI mod with external coil

Posted: April 12th, 2013, 5:25 pm
by windofire
i've seen those diagrams a tons of times, but i dont want to be using a gm module to trigger my msd 6al. so i found another diagram using an TIP3055 npn transistor.

Re: MSD HEI mod with external coil

Posted: April 12th, 2013, 6:18 pm
by Daninski
Would you mind sharing why you no want to use the GM module. Gm module is very dependable.

Re: MSD HEI mod with external coil

Posted: April 13th, 2013, 7:49 pm
by Nd4SpdSe
Do what you wish, but the GM HEI is a cheap and dependable module and mod and provides a cheaper alternative than to replace the factory one, and making it much easier to service. That module is able to drive a V12

I'm running GM V8 ignition coils in my Rx8. Not one company makes everything 100% perfect, so sometimes we need to source alternative and better parts through other makes.

Re: MSD HEI mod with external coil

Posted: April 17th, 2013, 4:42 am
by windofire
i dont have anything against the GM module, but the TIP3055 makes me able to make a much cleaner looking set of wires :)
and here in denmark, the cops send you to inspection if theres anything that looks out of normal :(