That’s the surging I believe I’m seeing up top. it wavers 2 psi up and down. I was forewarned it may be an issue w/the 60-trim.
I’m going to try plumbing both sides of the WG, because right now it is only on the bottom barb. I have a 1 bar spring in there right now, and full boost is 28psi, so that might be stretchign the limits.
I believe it to be a flow issue though, as its on a stock 1994 jetta 2.0 throttle body, and stock smallport 1.8t intake manifold.
Traction, i have 14psi in 1st(as low as I can go), 2nd – 14psi raising to 17 at 6000rpm, 3rd is 24psi raising to 28 above 6k rpm, then 4th and 5th are 28.
Autronic gear dependent/RPM dependent boost rules my face 