bushido

I recently installed a Forge 007P with the green spring. I'm currently only running APR 93oct. The stock valve was fine but I just changed to the Forge just in case. Now when I'm on about 3/4 to full throttle I can sometimes hear a metallic "whooshing" sound (shrieking?). It's not the turbo, I can hear that too. I can also hear the DV dumping air when I release the throttle. Is this sound normal? TIA!!

hoTTub

turn up the radio...=-p

JohnLZ7W

I had a similar sharp metallic sound after I did the DV relocation and it was because I had the DV in the reversed orientation from stock. OEM orientation has the vacuum nipple facing upwards.

bushido

nope, it's OEM orientation... I read about your post too, but I guess mine's a different problem