any active members into mega/microsquirt?

Discussion in 'Throttle bodies & non-OEM ECUs' started by pigbladder, Nov 22, 2019.

  1. pigbladder Forum Addict

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    okay...so what should i set it at please or how do i figure it out

    also any idea on 8v cranking speed please
     
    Last edited: Feb 12, 2020
  2. 2swe Forum Member

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    cranking speed should be a few hundred above your fast cranking speed (150rpm ?) and a few hundred below your lowest idle speed.
    500 or 600 is fine.

    trigger angle offset will be more tricky..

    do you have laptop with tuner studio instaled ?
    does your TS communicate with your microsquirt ecu ?
    do you have a timing light ?
     
  3. pigbladder Forum Addict

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    i have tuner studio installed

    ecu /wiring is being done as we speak and yes i have a light

    i understand i need to match up the figure i see on the laptop once running, but need a number to punch in for the first start
    IMG_20200213_084700.jpg
     
  4. 2swe Forum Member

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    I'm not familiar with your engine, but I guess it uses the same trigger wheel inside distributor with equally sized vanes and gaps, if so I'd use "trigger return" mode.

    trigger return mode "sees" both edges of each vane, the first edge tells the ecu that the crank is in particular distance from TDC (trigger angle) , the second edge is used while cranking and tells the ecu it is time to fire the spark. you have to position the distributor so the second edge passes thru hall sensor when the crank is in your desired cranking advance position (5-10°bTDC) .
    your engine has 5°bTDC timing mark under timing belt cover ? so I would use 5° cranking advance and confirm with timing light (injectors disconnected , spark plugs removed).
     
  5. pigbladder Forum Addict

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    right folks

    its on

    cranks and no start , pump primes

    tried to set the timing to fixed and use a timing light while cranking ...i get 2 flashes over like 10-15 secs cranking ?

    boxes along bottom of screen light up green for cranking and ready , inj pulse width dial goes to 9

    temp senders and tps added
     
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  6. 2swe Forum Member

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    can you post datalog and toothlog of attempted start ?
    you better remove spark plugs and disable injection for now to save your battery and engine..
     
  7. pigbladder Forum Addict

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    i can try if i can find out how

    im on the free version, do i just hit start logging and the crank the car some? then i guess i need to host it ?

    will pull the plugs thanks
     
  8. 2swe Forum Member

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    free version is ok.

    just hit START LOGGING, confirm or edit file mane, press SAVE, crank the engine for few seconds , hit STOP LOGGING.

    then open Diagnostic & high speed loggers, select Composite logger, tick Capture to log file, confirm or edit file name, START, crank the engine, STOP.

    upload both files.

    you can also pull the HT lead from middle of distibutor cap, place it close to cylinder head and watch if you see any spark during cranking..
     
  9. pigbladder Forum Addict

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    okay will give it a try..might be a few days until i reply
    thank you
     
  10. pigbladder Forum Addict

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    ok i have saved some cranking ..how do i share with you
     
  11. 2swe Forum Member

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    dropbox or any file hosting ?
     
  12. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    8v MegaSquit base spark settings.
    Most folk are unable to set up the base configuration settings from scratch. I knew about engines, enough to know what settings to expect when I set up MS calibrations, for 8v, 16v, 20v and VR6 engines back in the day.

    Whilst I choose not to just give that skill away, if you show willingness, I will attempt to help.

    I am not going to sit by and watch you suffer pigbladder.

    Here are some of basic settings you need to enter for the spark set up, to get your 8v dizzy engine running.
    There were from my old 8v MS 1 ver 3 pcb 3A MK2.
    Clearly I knew what I was doing from the start of this project and knew how to come up with the settings.
    I hold no responsibility if you blow up your engine from these settings, so use as a guide.

    Using TunerStudio

    Go to spark and see the drop down menu.

    89897352_213447423103207_3778352300171460608_n.jpg

    Make sure the "Stim for wheel is set off".
    You are not a rotary, so that sub function can be ruled out.


    Ignition options/Wheel Decoder.

    89689990_808048843009193_4063368425878061056_n.jpg

    Next Spark Settings.

    89906419_213852593303103_6380716784894345216_n.jpg
    My global advance was tweaked to 4 degs over the course of time, you might want to begin with "0".
    Crank angle can be knocked back to 10 deg of advance for you.

    However the next step may involve some temporary alterations to the fixed angle to move forward.

    Next the spark table.
    Here you really need to know what you are doing.

    As any spark table is a job that takes quite some some time to match the hardware, involving many miles of road tuning and the odd WOT check on the dyno, I will not post my complete spark table.
    I will post some of it to get you going.

    8v spark table.jpg
    Above is my spark table from that 8v car. Developed over some long time, before the car was given to my other half as a daily driver.
    You can write these values to your spark map to get the car fired up to 2000 rpm.

    Before validating , Set to the fixed angle from the previous picture to anything positive other than "-10" .
    Set the engine to have a fast idle to say 1500 rpm.

    Use an advance timing light to achieve the "fixed angle". You might need to rotate the dizzy.

    With that step done, set the fixed angle back to -10 to use the map settings above. If there are no corrections, for a given MAP and Engine speed, you should achieve what is in the cell on a timing light.
    You can try re-writing a chuck of boxes where the engine is running, to say "10". The timing light should align.

    Spark table selection.
    This should be set to the default of "spark table 1"

    89855691_490180931654210_5937895580683468800_n.jpg

    Idle Advance - use the map for know so leave at -10

    Dwell to be set as below for a TCI-h system.

    88228511_610691416181899_6739839878348931072_n.jpg


    Idle corrections for IAT and CLT. For now you might want to switch off.

    89870224_583016122556653_8849599686126862336_n.jpg


    That should help you for now.

    Regards

    Ed.
     
  13. pigbladder Forum Addict

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    thanks very much for taking the time to write all that out , will digest it and report back soon
     
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  14. pigbladder Forum Addict

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    distributor msns - not seeing that?

    dwell duty ? where mine shows 50 is that what i set to 75? screens arent the same






    IMG_20200316_151752.jpg IMG_20200316_151741.jpg
     
  15. 2swe Forum Member

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    Toyotec's screenshots are from MS1 so little bit confusing now.

    pigbladder : you have to confirm your coil is powered and working.
    I'd bin the ignition amplifier module and drive the coil directly from MS by BIP373, it is simple and predictable..
     
  16. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    I have built installed and mapped over 100 MS units for members of this forum and still run them in two cars.

    I stated the screenshots were from one of my old cars which ran a MS1 , however the set up information will be the same for a MS2, Emerald, DTA, OMEX or any other SEM, based on the hardware used.

    You DO NOT have to run BIP373 for an 8v engine as the TCI-h is pretty bomb proof as an ignition amplifier. This is the beauty of knowing the hardware which you are attempting to control.
    The TCI-h runs fixed duty as it controls dwell to the coil on the car internally.
     
  17. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    Email me the calibration and I will set the configuration up for you.
     
  18. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    The cut off a "Crank state" on an 8v or 16v is 350 rpm.
     
  19. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    Those members who wish to use the more popular MS2 on 8v stock hardware use these settings as a guide.

    Go to Ignition Settings -> Ignition Options.

    89875967_211729793405386_8512082691942776832_n.jpg

    Set up the screen as so.

    90091589_220408166031564_5831065368776409088_n.jpg

    By default, fixed duty to your TCI-h in this case will be applied from 50 degs BTDC, more than enough max advance, required on an 8v. at any condition.

    3 other tables to look at, the ignition table, you can transpose what I shared from the MS1 2.0 8v into that with the breakpoints and the MAT and CLT tables.

    For CLT, the maximum advance when the engine is at the coldest @ -40 deg C, can be set to 7 deg CA ADV and ~ 2 degs CA ADV at 20 to 30 deg C. When the engine is at 70 degs and beyond 0 deg CA ADV.
    For MAT, begin to retard timing, from 40 deg C 1 deg CA RET , 50 deg C 2.5 deg CA RET, 80 deg C, 7 dg CA RET.

    That would be it for ignition config.

    You globally offset the overall timing, like slackening the dizzy, by simply entering an adv or ret value on the Trigger Wizard or Trigger offset which is set at "0" to start with.

    Hope that helps.

    Ed.
     
  20. pigbladder Forum Addict

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    eddie ,2swe im happy to say it now starts and almost idles

    need to read up on matching the timing its miles out and not enough room to match it via moving the dizzy, so will go away and read about that

    thanks alot...cheered me up a bit that its working now
     
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