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Thread: EMS to 1jz/mx83 tacho

  1. #1
    Junior Member Grease Monkey Maverick's Avatar
    Join Date
    Dec 2005

    Default EMS to 1jz/mx83 tacho

    I`ve searched high and low for this information but can`t find anything helpful.

    I have a mx83 with a 1jz and EMS stinger 4244... my tacho doesn`t work and I would like to sort it out. As far as i know I have to configure an aux output on the stinger to create a tacho signal, then have it converted to 12v to suit the cressida tacho ???

    am i on the right track?

  2. #2
    At Work I'm A Grease Monkey Hibba's Avatar
    Join Date
    Jan 2006

    Default Re: EMS to 1jz/mx83 tacho

    Easy way?
    make a circuit like this

    but add 4 more inputs into it, each from the neg of each coil.

    MX83 Grande
    DirtyWan Skyline GX

  3. #3
    Triptek Enhanced Backyard Mechanic triptek's Avatar
    Join Date
    Mar 2006
    Western Australia

    Default Re: EMS to 1jz/mx83 tacho

    MSD tacho adapters work great on the cressidas. Part number is 8920.
    1990 SW20 MR2 turbo Gen III 3S-GTE conversion, 3" exhaust = 264.9rwhp
    1985 JZA61 2JZ-GTE + TO4Z = 442.1rwhp @ 18psi
    1991 JZA70 Limited 2JZ-GTE vvti GTX30/76r
    1994 GZX90 Mark II 1GZ-FE V12
    1980 MA45 Undergoing Restoration

  4. #4
    Forum Sponsor Conversion King
    Join Date
    Dec 2006

    Default Re: EMS to 1jz/mx83 tacho

    curtis, call me tomorrow and i should be able to sort it out for you.

    the tach signal is on the EMS ignitor but needs to be converted to a different signal.

    Quote Originally Posted by WHITCHY
    Prefer someone around the Sydney area but will travel a few hours for a good box!

  5. #5
    Junior Member Grease Monkey
    Join Date
    Sep 2007

    Default Re: EMS to 1jz/mx83 tacho

    Mine uses some form of custom made "tacho signal converter". Its the size of a gold nugget though sadly, and the circuit is covered in epoxy It wouldn't be so bad if it was a bit smaller and lighter

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