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  1. #11
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    @nickstewartroc the issue was present on both intakes, it is just less audible/noticeable on the oe airbox.

    This issue has been on the top of my priority list and has been the reason I haven’t moved on to actuator testing, which I know @felopr has been waiting so patiently for. Lol. I want to keep the test car hardware all oe, to determine the real root of the issue, before moving on to actuator (and other) testing. But I will say the following:

    The issue is within the ecu logic and is present on all Fiesta maps I have tested (OTS and custom).

    I have determined why the surge exists and have eliminated it on a test map, with the results being smooth throttle operation (where it would normally surge). This was a TEST map and not something I would release to customers.

    The issue is NOT related to the oem actuator

  2. #12
    Member 141 Rep Points felopr's Avatar
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    Quote Originally Posted by Jason@dizzytuning View Post
    @nickstewartroc the issue was present on both intakes, it is just less audible/noticeable on the oe airbox.

    This issue has been on the top of my priority list and has been the reason I haven’t moved on to actuator testing, which I know @felopr has been waiting so patiently for. Lol. I want to keep the test car hardware all oe, to determine the real root of the issue, before moving on to actuator (and other) testing. But I will say the following:

    The issue is within the ecu logic and is present on all Fiesta maps I have tested (OTS and custom).

    I have determined why the surge exists and have eliminated it on a test map, with the results being smooth throttle operation (where it would normally surge). This was a TEST map and not something I would release to customers.

    The issue is NOT related to the oem actuator
    I just want to know much of a performance gain and smoothness a actuator would make on 93 and e30 on stock turbo before I make the decision if I bite the bullet or not before giving your custom tune a try, since you don't have a "lifetime" program that I can just experiment with parts with.

    I haven't really experience or I haven't notice it most likely this "surge"
    when you say surge, can you ELI5 it to me?
    is it in any part of the rpm range or a specific rpm range?
    is it at very small open throttle? middle or it? or at wot?
    what is it I am looking / feeling at?

    If you have find the "fix" for this surge, what is stopping you from releasing it? more seat time / validation time or something that makes the calibration "unsafe"?

    As always, keep up the good work, liking it so far
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  3. #13
    Member 88 Rep Points nickstewartroc's Avatar
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    Quote Originally Posted by Jason@dizzytuning View Post
    @nickstewartroc the issue was present on both intakes, it is just less audible/noticeable on the oe airbox.

    This issue has been on the top of my priority list and has been the reason I haven’t moved on to actuator testing, which I know @felopr has been waiting so patiently for. Lol. I want to keep the test car hardware all oe, to determine the real root of the issue, before moving on to actuator (and other) testing. But I will say the following:

    The issue is within the ecu logic and is present on all Fiesta maps I have tested (OTS and custom).

    I have determined why the surge exists and have eliminated it on a test map, with the results being smooth throttle operation (where it would normally surge). This was a TEST map and not something I would release to customers.

    The issue is NOT related to the oem actuator
    Glad to know it's on your radar
    Let me know if there is anything I can do to help, testing or otherwise

  4. #14
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    I have 0 surge with my setup.

  5. #15
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    A new thread has been started dedicated to the part-throttle surge:

    https://www.fiestastforum.com/forum/t...129#post305129

 

 
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