racedaymechanic
Member
I figured I would start a new thread, anyway this what I have come up with for the HX40II, Its pretty simple and should work with all airboxes, Just need to try it out
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Do you tighten the nut on the controller to increase boost and loosen the nut to decrease boost, is it the less the spring is being compressed the less boost i will have.
I havent tested the new spring rod setup yet but I was able to get down to 10 psi and 20+