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Thread: ZD30 highflow airbox and intake LIMP MODE!!

  1. #21
    Patrol Guru Bidja's Avatar
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    Quote Originally Posted by mudski View Post
    Yeah nice. I think the Di ECU remap was, and maybe still is, a single and permanent job. But its been a while now, things might have changed.
    Think DI and CRD same class for remaps theses days. I know of one DI that has had new Eclipse turbo fitted and had a live tune done subsequent to earlier remaps when had stock turbo on it.
    Not sure if they need to be master tuners or not.
    All good mate.
    2008 GU WAG ST Manual CRD - To do the job

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  3. #22
    Patrol Guru Bidja's Avatar
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    Quote Originally Posted by sn5013 View Post
    nice gradual spool increase.
    ive gone down to 15psi now since having these issues and that has stopped it hitting limp mode at every take off, still happeneds most of the time tho and when im on heavy gas
    IMO, now that U have max boost set at 15psi and only getting limp holding loud pedal, U are most likely still over boosting slightly under heavy acceleration.
    How far have you got the needle valve wound out?

    Have to ask this_is the needle valve (if one directional tillix type), connected up in the with the vacuum arrow pointing toward vacuum pick up?

    Try leaving Tillix boost controller where is for the moment(max boost 15psi), wind the needle right in (clockwise/closed), start eng and @ idle unwind needle valve and if the actuator rod drops this is correct.

    OK, now at idle wind the needle in and check to see if the actuator lever is hitting the vane angle limit stop grub screw (with needle closed). Then gradual unwind needle and when the level just drops a way from the stop screw wind needle back in (clockwise)say 1/4 turn. Go for a drive and let us know what you experience. If limp occurs under full acceleration unwind needle more(say one turn). If no joy, we can have a look at adjustment to actuator rod length.
    2008 GU WAG ST Manual CRD - To do the job

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    Quote Originally Posted by Bidja View Post
    IMO, now that U have max boost set at 15psi and only getting limp holding loud pedal, U are most likely still over boosting slightly under heavy acceleration.
    How far have you got the needle valve wound out?

    Have to ask this_is the needle valve (if one directional tillix type), connected up in the with the vacuum arrow pointing toward vacuum pick up?

    Try leaving Tillix boost controller where is for the moment(max boost 15psi), wind the needle right in (clockwise/closed), start eng and @ idle unwind needle valve and if the actuator rod drops this is correct.

    OK, now at idle wind the needle in and check to see if the actuator lever is hitting the vane angle limit stop grub screw (with needle closed). Then gradual unwind needle and when the level just drops a way from the stop screw wind needle back in (clockwise)say 1/4 turn. Go for a drive and let us know what you experience. If limp occurs under full acceleration unwind needle more(say one turn). If no joy, we can have a look at adjustment to actuator rod length.
    needle valve is about 3 turns out currently, put foot to the floor and she goes to 17psi for a second then settles down to 15psi, needle valve is the one way type and arrow pointing away from the vacuum intake.

    I had originally adjusted the needle valve going of the actuator level to set it, that was before i installed the demon pro airbox, before this it ran mint

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    Patrol Guru Bidja's Avatar
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    Quote Originally Posted by sn5013 View Post
    needle valve is about 3 turns out currently, put foot to the floor and she goes to 17psi for a second then settles down to 15psi, needle valve is the one way type and arrow pointing away from the vacuum intake.

    I had originally adjusted the needle valve going of the actuator level to set it, that was before i installed the demon pro airbox, before this it ran mint
    needle valve is the one way type and arrow pointing away from the vacuum intake
    . Yeah the vac arrow should be facing towards vac pick up. You are running max spool_turn it around and give a try mate. As I said when you open the needle valve the actuator rod should drop not yours (one way directional flow)..
    2008 GU WAG ST Manual CRD - To do the job

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    Patrol Guru Bidja's Avatar
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    @sn5013 check out Westy's video link here. Credits goes to Kallen @bigguwesty that hangs out here, helped me heaps early on

    https://www.youtube.com/watch?v=7tQziIey884
    2008 GU WAG ST Manual CRD - To do the job

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    bigguwesty (4th July 2019)

  8. #26
    Patrol God bigguwesty's Avatar
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    You have to keep in mind these are mechanical devices.
    So you need an action for a reaction and it takes time.
    Are you running the factory intercooler?
    You may have leaks in the system ( they leaked like seives from the factory....)
    The more leaks you have the not air you need to reach max boost.
    So limp is a combination of air flow, boost and load..
    Eliminate leaks and then work on boost and spool rate.
    Fuel should take care of itself.

    Sent from my SM-G977B using Tapatalk
    Cheers
    Kallen Westbrook

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    Bidja (4th July 2019)

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    Quote Originally Posted by Bidja View Post
    . Yeah the vac arrow should be facing towards vac pick up. You are running max spool_turn it around and give a try mate. As I said when you open the needle valve the actuator rod should drop not yours (one way directional flow)..
    Sorry mate think a mix of words has crossed us up here, currently the arrow is pointing to go with the flow of vacuum air, so away from the vacuum intake filter.

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    Quote Originally Posted by bigguwesty View Post
    You have to keep in mind these are mechanical devices.
    So you need an action for a reaction and it takes time.
    Are you running the factory intercooler?
    You may have leaks in the system ( they leaked like seives from the factory....)
    The more leaks you have the not air you need to reach max boost.
    So limp is a combination of air flow, boost and load..
    Eliminate leaks and then work on boost and spool rate.
    Fuel should take care of itself.

    Sent from my SM-G977B using Tapatalk
    no, im running a welded intercooler, have already pressure tested the system for leaks and non at all.

  12. The Following User Says Thank You to sn5013 For This Useful Post:

    bigguwesty (5th July 2019)

  13. #29
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    i think bidja is right . arrow needs to point towards vac connection as this is the direction of flow that you want to meter .

  14. #30
    Patrol Guru Bidja's Avatar
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    Quote Originally Posted by sn5013 View Post
    Sorry mate think a mix of words has crossed us up here, currently the arrow is pointing to go with the flow of vacuum air, so away from the vacuum intake filter.
    Arrow has to point toward vacuum pick up at engine not to air filter / intake, check Westy's youtube video.

    There is no vac on air filter/induction side.
    Last edited by Bidja; 5th July 2019 at 03:27 PM.
    2008 GU WAG ST Manual CRD - To do the job

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