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Thread: z20let actuator

  
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    chrismk4gsi's Avatar
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    z20let actuator

    My z20let is standard (apart from filter and exhaust) on a factory standard map.

    What would happen if i adjuted my actuater slightly to increase boost?

    Could i tweak a bit more boost from the turbo, or does it sound like a recipe for disaster? Whats the worst that could happen???
    Former GSi owner, now own a plastic car with a vectra engine......

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    Enkidu's Avatar
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    Adjust too far and ecu will throw up an error stating overboost.....
    Adjust a little, if actuator is weak, car will run better and hold boost better
    Arden Astra GSI - Phase 3.5

    EDS Phase 3.5 288 BHP 340 FT/LB

    Inlet cam and Dbilas manifold.

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    so u reckon i should give it a little tweak the? Half a turn??
    Former GSi owner, now own a plastic car with a vectra engine......

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    Quote Originally Posted by chrismk4gsi View Post
    so u reckon i should give it a little tweak the? Half a turn??

    Yeah I did on mine....
    Arden Astra GSI - Phase 3.5

    EDS Phase 3.5 288 BHP 340 FT/LB

    Inlet cam and Dbilas manifold.

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    clockwise or anti clockwise?? How much did you turn yours mate? u get any probs??
    Former GSi owner, now own a plastic car with a vectra engine......

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    Quote Originally Posted by chrismk4gsi View Post
    clockwise or anti clockwise?? How much did you turn yours mate? u get any probs??

    You need to go towards the actuator to preload.... I turned mine a full rotation... Have a play.
    Arden Astra GSI - Phase 3.5

    EDS Phase 3.5 288 BHP 340 FT/LB

    Inlet cam and Dbilas manifold.

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    brucey106's Avatar
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    i take it when you have your car tuned they do this? is it worth me messing with it? i reckon not but might aswell ask! lol, improvement in boost is always a must
    the black Opel Sri-t with bbs ch alloys and
    Eds3.5

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