i have a turboXS type H adjustable BOV, which you can adjust the spring tension by inserting 'pack washers' to shorten spring length and hence increase the force required to open the valve. i have read the that the speedparts stg2 is capable of 17-19psi peak boost, and the valve is rated for 10-30psi. so my question is more a search for clarification...perhaps someone can shed some light on this..i have heard two different thoughts on this:
1-leave the BOV in a state where it is adjusted ONLY to the point that it is closed on idle
2-adjust the BOV so it will not leak pressure at high psi
i think the thought behind (1) is that it will not take much pressure to open and prevent any reverse shock to the turbo if pressure gets 'caught' due to the spring tension, and the thought behind (2) is that you will be able to hold more pressure without it leaking off through the weak spring tension?....can someone clear this up once and for all?
cheers/eric
96 900SET
1-leave the BOV in a state where it is adjusted ONLY to the point that it is closed on idle
2-adjust the BOV so it will not leak pressure at high psi
i think the thought behind (1) is that it will not take much pressure to open and prevent any reverse shock to the turbo if pressure gets 'caught' due to the spring tension, and the thought behind (2) is that you will be able to hold more pressure without it leaking off through the weak spring tension?....can someone clear this up once and for all?
cheers/eric
96 900SET