95' RRC Davis Unified Ignition Conversion - Advice Requested
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Thread: 95' RRC Davis Unified Ignition Conversion - Advice Requested

  1. #1
    FRESHMAN ROVER
    Join Date
    December 12th, 2015
    Location
    Milton, Ga
    Posts
    163

    95' RRC Davis Unified Ignition Conversion - Advice Requested

    After much research and consideration, I have decided to convert the OEM Lucas ignition to the Davis Unified Ignition system.

    Looking for advice from those currently running the system, and any installation tips you may offer.

    Also, based upon the following information, should I request a modified timing curve?


    My 95’ RRC is currently running the following:

    Rebuilt 4.6l bottom end
    Level II Crower cam
    Ported heads
    15lb Ford injectors (yellow)


    Listed below are the components I plan to purchase:



    Davis Unified Ignition 96920BL - Davis Unified Ignition Land Rover D.U.I. Distributors

    Davis Unified Ignition C9074-350BK - Davis Unified Ignition LiveWires

    Champion Spark Plugs 9804 - Champion Iridium Spark Plugs


    Looking for any advice, tips, or, tricks.

    Thank you in advance!

    Chris

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  3. #2
    SENIOR ROVER
    Join Date
    June 11th, 2016
    Location
    northern va 22003
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    1,375

    Re: 95' RRC Davis Unified Ignition Conversion - Advice Reque

    widen the spark plug gap to 60 mm, DUI is high energy and the rover factory recommended gap does not allow for the performance DUI is capable of delivering,
    you can update the DUI coil with ACCEL for better performance. any 1980's gm cap, rotor, wires, ignition module and coil will fit.
    wiring is simple. switched power is obtained from the original coil power wire, rpm is not needed as rover picks up from alternator and I think that is it.

    Oh keep your hands away from DUI arc when testing for spark. you will see why.
    2k p38 4.6
    95 lwb 4.6
    01 d2 4.0

  4. #3
    FRESHMAN ROVER
    Join Date
    December 12th, 2015
    Location
    Milton, Ga
    Posts
    163

    Re: 95' RRC Davis Unified Ignition Conversion - Advice Reque

    Quote Originally Posted by 95classiclwb View Post
    widen the spark plug gap to 60 mm, DUI is high energy and the rover factory recommended gap does not allow for the performance DUI is capable of delivering,
    you can update the DUI coil with ACCEL for better performance. any 1980's gm cap, rotor, wires, ignition module and coil will fit.
    wiring is simple. switched power is obtained from the original coil power wire, rpm is not needed as rover picks up from alternator and I think that is it.

    Oh keep your hands away from DUI arc when testing for spark. you will see why.
    Perfect- thank you! What is the best way to send the ground signal to the injectors?

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  6. #4
    SENIOR ROVER
    Join Date
    June 11th, 2016
    Location
    northern va 22003
    Posts
    1,375

    Re: 95' RRC Davis Unified Ignition Conversion - Advice Reque

    I was forgetting about that, the DUI has a connector dedicated or you could use tach signal plug. it tells you on the instructions.
    2k p38 4.6
    95 lwb 4.6
    01 d2 4.0

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