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Thread: 1.6 Harness into 94 1.8

  1. #16
    2,000 rpm - light wheelspin, no bog here! ADOBOMiata's Avatar
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    So I spoke with my friend who is taking the motor from the 94 m edition. I asked him if we could trade ecu's (since they're both megasquirt pnpv2 and both will need to be retuned.) and that way there is less labor on our end for the harnesses. I will definitely need to figure out how to wire the NB tps onto the 94 harness and NB IAC onto the 94 harness.

    BorgWarner EFR 6758, Built 1.8, mspnpv2

    295whp, 271tq @14psi



  2. #17
    2,000 rpm - light wheelspin, no bog here! ADOBOMiata's Avatar
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    ah.. figured out
    94 -> 99/00

    Red (Remove)
    Black/Blue -> Black/Red

    Reference link: http://www.miataturbo.net/engine-per...athread-80469/
    Light Green/White -> Light Green/Red
    Red/Black ->Green/Black

    BorgWarner EFR 6758, Built 1.8, mspnpv2

    295whp, 271tq @14psi



  3. #18
    3,000 rpm - starting to feel the power Rogue's Avatar
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    Quote Originally Posted by ADOBOMiata View Post
    Would it be easier to "loop" the ps lines that are on the steering rack?
    Manual/PS racks are interchangeable…..plenty of info out there on depowering, but its not just looping hoses.

    Quote Originally Posted by ADOBOMiata View Post
    I was thinking swapping the brake lines from my 92 and use the calipers/rotors/pads (since they are already 1.8).
    Calipers are useable, but there will be some replumbing to delete ABS.
    Other than Hydraulics and sensors the ABS/Non-ABS cars are the same.
    ABS does use a proportion valve with more rear bias.
    1992 BnT, 93LE #737, 94M, 95M, 96M, 97PEP, and a few 90s

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    ADOBOMiata (02-16-2016)

  5. #19
    2,000 rpm - light wheelspin, no bog here! ADOBOMiata's Avatar
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    Quote Originally Posted by Rogue View Post
    Manual/PS racks are interchangeable…..plenty of info out there on depowering, but its not just looping hoses.


    Calipers are useable, but there will be some replumbing to delete ABS.
    Other than Hydraulics and sensors the ABS/Non-ABS cars are the same.
    ABS does use a proportion valve with more rear bias.
    Ah! Never knew that. I might upgrade to wilwoods or something. Besides taking apart the steering rack, I read the quickest way is to drain the steering rack and use the plugs that Miata roadster sells? Correct me if I'm wrong please.

    As for the ecu/tune issue, if I swap the engine from my 92 chassis (it's a built 99 engine) everything should plug in correctly with minimal modifications (with splicing the NB tps and NB IAC onto the 94 harness). If my theory is correct, I could copy the map from the 1.6 MS Ecu and burn it onto the 1.8 MS.

    BorgWarner EFR 6758, Built 1.8, mspnpv2

    295whp, 271tq @14psi



  6. #20
    3,000 rpm - starting to feel the power Rogue's Avatar
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    Quote Originally Posted by ADOBOMiata View Post
    Besides taking apart the steering rack, I read the quickest way is to drain the steering rack and use the plugs that Miata roadster sells? Correct me if I'm wrong please.
    I'm a true Manual Rack guy, I did loop hoses about 15 years ago and liked that less than I like P/S.
    I then started acquiring true Manual racks and never looked back.
    On a depower...FM has some tech info, but I know it requires welding up a flex joint.
    http://www.Flyinmiata.com/tech/depower.php

    I'm putting a built 99/00 in my '90, but at this point just doing a basic 1.8 swap with a 'squirt.
    1992 BnT, 93LE #737, 94M, 95M, 96M, 97PEP, and a few 90s

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    ADOBOMiata (02-16-2016)

  8. #21
    2,000 rpm - light wheelspin, no bog here! ADOBOMiata's Avatar
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    Hm, I see. kungfujesus advice would be the best decision. (swap the front subframe)

    BorgWarner EFR 6758, Built 1.8, mspnpv2

    295whp, 271tq @14psi



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