Hi guys,
I have just purchased my second r33 turbo. The fisrt one had every problem you could think of so i am acustomed to the world of skyline with problems.
I have this stragne problem. my r33 has a dual stage turboXS boost control with swithc in cabin, podfilter, zorst and forged aftermarket pistons, GFB dual BOV .
When i florr it on low boost 7psi it revs out first strong then hit secodn and it dies in the sarse, the car has no pick up and o nthe boost guage it does not seem to be baking boost.
Now the same thing in high boost and it goes hard as it should.
I took apart the first stage of the boost contorler and their is no problem with that, the bov is calibrated fine.
I am guessin git has something to do with the turbo? maybe a sticky waste gate flapp? any ideas guys?