Results 1 to 4 of 4

Thread: Road Speed Input (Haltech Elite 550/750)

  1. #1
    What's that whooshing? Aaron's Avatar
    Join Date
    Nov 2001
    Location
    Canberra - ACT
    Posts
    2,564

    Road Speed Input (Haltech Elite 550/750)

    Sketching out a new chassis wiring diagram around using Haltech Elite 550/750. ECU change isn't the main driver for the new loom but it's part of trying get better integration through the whole car.

    The chassis has a speed sensor mounted at the diff snout that is used to drive the speedometer. The output of this is pretty stable and the current loom designs don't use shielding and don't suffer from obvious interference.

    Question is in the hands of a competent tuner is the roadspeed input to the ECU actually useful? Does it assist with better computation of load etc?

    I would be retaining the same sensor and feeding the pulse output to the appropriate input on the Haltech.

    My presumption is that we could set the Haltech to do tach and roadspeed output on a couple of the spare output channels so we don't need to go through the hassle of physically mounting an additional sender in the tunnel.
    ---
    Shed Project: 1994 Laser Lynx with BP-T

  2. #2
    Purist, whats that? Jason Broadhurst's Avatar
    Join Date
    Nov 2003
    Location
    North Brisbane
    Posts
    6,157
    Road speed is great, if for idle control alone.
    Jason Broadhurst

    Someone once asked me if they could use my mower. I said "sure, so long as it doesn't leave my yard"

  3. #3
    sack riding 10sec rx7's Avatar
    Join Date
    Nov 2001
    Location
    Sydney
    Posts
    17,573
    if you have spare inputs and the sensor is there why not..
    im a cunt
    and apparently i dont know shit...

  4. #4
    What's that whooshing? Aaron's Avatar
    Join Date
    Nov 2001
    Location
    Canberra - ACT
    Posts
    2,564
    Cool - will send a wire or two up to the pointy end of the car.
    ---
    Shed Project: 1994 Laser Lynx with BP-T

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •