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Thread: Spring and Ball Boost Controller Mod

  1. #1
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    Spring and Ball Boost Controller Mod

    Hi All

    Made a mod to my spring and ball boost controller that may be usefull to those with spring / ball jamming or sticking issues.

    I removed the ball altogether and replaced it with a counter sunk screw that is only slightly smaller than the I.D. on the controller but larger than the spring diameter.

    Have attached a pic to make my ramblings easier to understand.

    max boost is now on 18psi with needle valve open 1/4 turn for about 10psi at 100km.

    There is no boost spike or jumpy needle as before which I suspect was from the ball / spring.

    Having the screw shank go down the barb keeps everything inline and moving freely.

    Thanks

    a.jpg

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    4bye4 (16th April 2019)

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  4. #2
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    mudski's Avatar
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    Good idea.
    I reckon you might want to file down the teeth on the screw so theres no chance of it catching.

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    Good idea Mudski,

    I Will keep an eye on it , sticking etc should show up on the guage as a jumpy needle

    thanks

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    Maybe even cut it in half ,all trial and error I suppose
    04 ST 3lt auto, not enough Mods to keep me happy, but getting there

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    Hi All ,

    Update , I have had no issues at all with the screw mod in the boost controller over the last few weeks , its set at around 20 psi with the needle valve at 1/4 turn , gauge shows to sticking or boost bounce

    Currently working out remote for the last couple weeks so its getting a lot of bush track / no track testing.

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    mudski (2nd May 2019)

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