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Thread: trigger angle

  1. #1

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    trigger angle

    does anyone know what the trigger angle and tooth offset is on a 1503 motor? need to know if anyone does so i dont have to pull the motor!


  2. #2
    It got WIFI and touchscreen ! PWCGUY's Avatar
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    Quote Originally Posted by gorilla297 View Post
    does anyone know what the trigger angle and tooth offset is on a 1503 motor? need to know if anyone does so i dont have to pull the motor!
    Whatever is in the base Motec plug and play map is correct.

  3. #3
    R88ory RXP's Avatar
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    Quote Originally Posted by PWCGUY View Post
    Whatever is in the base Motec plug and play map is correct.
    He isnt running a MoTec, He is trying to setup a Haltech ECU. R88

  4. #4
    It got WIFI and touchscreen ! PWCGUY's Avatar
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    Quote Originally Posted by R88ory RXP View Post
    He isnt running a MoTec, He is trying to setup a Haltech ECU. R88
    O.K. The Motec ECU is setup with a falling edge trigger. In my map the reference index tooth position relative to TDC on cylinder # 1 is 304 deg BTDC.

  5. #5
    R88ory RXP's Avatar
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    Quote Originally Posted by PWCGUY View Post
    O.K. The Motec ECU is setup with a falling edge trigger. In my map the reference index tooth position relative to TDC on cylinder # 1 is 304 deg BTDC.
    Here is some info from Haltechs website that may or may not help as the MoTec may have a different way of setting up.

    Calibrating Ignition Timing
    Go to the fuel setup page and disable the fuel injectors. At this stage it is not desired that the engine attempts to start. To reduce stress on the starter motor it is also advisable to remove the spark plugs to help the engine crank more freely when setting base timing. Be careful when doing this and ensure power is off as spark from ignition coils may cause severe injury or possibly even a fatal electric shock.
    Ensure that you have setup your trigger type correctly and RPM is steady and consistent at cranking speeds.
    If your RPM signal is good, check your Home or Cam Angle signal is operating correctly. You may neet to display Triggers Since Last Home to determine this. This value should correspond to the number of trigger pulses that will be received for every home pulse received.
    Enable Ignition Lock and set Lock Timing angle to a reference angle that you can read off the engine crank pully with a timing light. There is typically a 10 degree mark. If not, you can use any clearly defined marking such as 5 degrees or 0 degrees if they are present.
    Tooth Offset gives large changes to timing, Trigger Angle is used to fine tune timing to exactly your Lock Timing refence angle (10 degrees in this case).
    If your trigger type requires Tooth Offset adjustment, then start with Tooth Offset zero and Trigger Angle at 70 degrees. Adjust tooth offset until the timing mark is visible near the TDC mark while cranking the engine. Then adjust Trigger Angle until the ignition timing coresponds to the Ignition Lock value in the Ignition Setup tab.
    If your trigger type does not require Tooth Offset adjustment, then set Trigger Angle to 70 degrees and crank engine while using a timing light connected to ignition lead for number 1 cylinder. Adjust the Trigger Angle until timing reads the Lock Timing reference angle (10 degrees in our example), as viewed with a timing light on crank pulley.
    If the trigger angle is smaller than the largest ignition angle that you wish to run, then you may wish to adjust your Tooth Offset to allow for a larger trigger angle. If your trigger type does not allow for a Tooth Offset (e.g. Standard Trigger Types), then you may need to re-phase your crank angle sensor to achieve the desired trigger angle. Typical trigger angles are between 60 and 75 degrees BTDC. Lower and higher angles are possible, but must comply by the rules defined in the Trigger Angle setup.
    Once this is complete, your trigger angle is now calibrated against the engine.

    R88
    Last edited by R88ory RXP; 10-16-2010 at 05:32 AM.

  6. #6
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    sounds like chinese to me!! hahaha

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