90' MSM EMS-4 Toyota COP project - Miata Turbo Forum - Boost cars, acquire cats.

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Old 01-19-2013, 10:00 PM   #1
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Default 90' MSM EMS-4 Toyota COP project

I working on a 90' Miata with a Mazdaspeed Miata engine. It has a voodoo II GT2560 kit. I will be running an AEM EMS-4 with Toyota COPs. I am in the process of building the harness. I finished mounting the coils and wiring them. I'll post more pics as I go along.

EB Turbo

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90' MSM EMS-4 Toyota COP project-miatacop_zpsff266242.jpg  

Last edited by EB Turbo; 01-22-2013 at 12:12 PM. Reason: Edit image link
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Old 01-20-2013, 08:30 PM   #2
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Raychem = winning.
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Old 01-20-2013, 09:42 PM   #3
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Newb of the ******* year up in hurrrrr.
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Old 01-20-2013, 10:14 PM   #4
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Newb of the ******* year up in hurrrrr.
Me? Definately not. Dont be fooled by my low post count.

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Old 01-21-2013, 04:34 AM   #5
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Quote:
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Me? Definately not. Dont be fooled by my low post count.

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You clearly know how to build a harness, I am all Smuckers over it.
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Old 01-21-2013, 04:55 AM   #6
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Are those Raychem SCL boots at the ends of the wiring?
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Old 01-21-2013, 05:39 AM   #7
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Are those Raychem SCL boots at the ends of the wiring?
It is similar. It is 4:1 instead of 2.5:1. Plus it dries a little harder than SCL. The Y transitions are home made from the same material of a larger diameter. The high shrink ratio makes it easy to do. SCL is just heat shrink. It is not a boot. Boots are pretty expensive, anywhere from $10-30 a piece.

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Old 01-21-2013, 09:31 PM   #8
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Don't see pics...
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Old 01-21-2013, 09:35 PM   #9
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Don't see pics...
I see them, They are there. They are also on my FB page Chris.

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Old 01-21-2013, 11:04 PM   #10
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Pics broken for me too.
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Old 01-21-2013, 11:06 PM   #11
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I will repost it tomorrow.

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Old 01-22-2013, 12:13 PM   #12
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I reposted the image. It should stay up this time.

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Old 01-22-2013, 12:14 PM   #13
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Indeed. Very nice work.
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Old 01-25-2013, 06:59 PM   #14
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Hi there,

I have a 93 1.8 miata running a megasquirt ecu and a disco potato turbo..

I have just purchased four COP's and the connectors and loom - could you please give me some advice on turning this into a loom for the COP's conversion on a miata do you have a wiring diagram for 93 miata please...

Thanks,

Hal.
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Old 01-25-2013, 09:40 PM   #15
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There are many writeups on how to install COPs in your Miata. You can continue with the wasted spark method and follow the writeup in the link. If your megasquirt is worth anything you should be able find 2 more ignition outputs and run the COPs sequentially. It may take a bit more work and wiring but it will work the best.

https://www.miataturbo.net/useful-sa...writeup-12704/

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Old 01-25-2013, 10:03 PM   #16
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Welcome to the forum and your wiring looks amazing. I will learn how to make a proper harness one day.
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Old 01-26-2013, 08:01 PM   #17
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Hi - yes sequentially that is what I would like to do - I have the bits just need some advice on where the wires go and how to map the MS Maybe Braineak could help... any help appreciated chap's!!
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Old 01-26-2013, 09:17 PM   #18
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The coil gets 12v, engine gnd and signal from the ECU. There are a few different ways to get power. The MS won need to be remapped. You will just need to enable the extra coil outputs and change the dwell settings. .

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Old 01-29-2013, 02:21 AM   #19
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That's great thanks EB Turbo - great information. If I am going for plug and play is there a plug I need to buy to wire the cop's loom into? I think I found a link to one but can't find it again now. Going to build my COP's this week..... Cheers Hal.

Sorted this thanks...

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Old 01-29-2013, 06:27 PM   #20
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Errr can I do sequential on a MS1???? or just wasted spark... thanks.
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