I was considering using my old turbo exhaust (3 inch) for my new N/A engine. If I can, I'd like to avoid buying a set of headers in the name of budget constraints. Is there anyway I can go from the exhaust manifold straight to 3 inch? Can an exhaust shop make this or is the flange on our manifolds a common flange?
Make sure all your vacuum lines to the wastegate are not plugged, or cracked, etc. I had the same problem and it turned out someone had stuck a piece of metal in the wastegate signal line..
Update: Popped open my block today, number 6 piston skirt broke and the rings broke as well.
Im going to an NA setup, about to assemble a .040 bored over F54/P90 fully balanced. Updates to come.
Need some square port headers. Don't have to be pretty and I need them local. If wanted, I have plenty of parts im willing to trade, heads,intakes, turbo parts etc.