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Old 06-21-2009, 06:25 AM   #1
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Default 98 1.8 install

Hi,

After searching, Im coming up with not alot of info.
I need to find some MS-1 install instructions/ECU pin-out for a 1.8 1998.

I've got an LC-1 to install with it and the MS-1 is a DIY kit fully build and working on a stim.

Cheers,
Craig
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Old 06-22-2009, 01:59 PM   #2
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The problem is that the Miata was never sold as a 1998 model year in the US. Is this one an NA or NB body style?
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Old 06-22-2009, 05:16 PM   #3
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it's an NB
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Old 06-22-2009, 07:44 PM   #4
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What Richy said!

It's an NB and timing is off the crank. I'm guessing here, but if the 98 NB was never sold in the US, should I be looking out for the 99 NB ECU pin-out and MS-1 install instructions?

I'll be wanting to install it parallel with the stock ECU as I believe the alternator is regulated off the crank angle sensor.

Thanks,
Craig
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Old 06-23-2009, 03:12 AM   #5
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Go MS-2, read

https://www.miataturbo.net/forum/t26882/

https://www.miataturbo.net/forum/t14847/

and especially the latest thread from Abe about his adapterboard.

Greets
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Old 06-25-2009, 07:15 AM   #6
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Im not too keen on going MS-2. My requirements wouldn't take me beyond an MS-1 parallel install. I just want decent fuelling/ timing control for an intercooled supercharger install with the ability to bang in some larger injectors etc.

I don't see an issue with letting the stock ECU control the alternator and other boring stuff.

I'm still struggling to fins a defined pin-out/install guide for my 1998 NB car :(
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Old 06-25-2009, 07:45 AM   #7
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That is how I did my parallel install as it was with the MS1.

MS1 install scheme 99-00

No guarantee though, it's just a little drawing I did for myself...
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Old 06-25-2009, 10:29 AM   #8
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With MS1, you will have to add an NA cam sensor (or a 36-1 crank trigger), as only MS2 can read the stock sensors.
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Old 07-12-2009, 04:39 PM   #9
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Thanks for the schematic Zaphoid.

I've got a mk1 CAS for the back of the exhaust cam so hopefully I'll soon be on my way.
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