Ok I have a funny whining noise on boost, I AM AWARE IT COULD BE THE TURBO, but what else could possibly cause this, an air leak, or perhaps even a fuel pressure issue?
Fixed a couple of things the other day and now the car pulls really well only boosting 12-13psi, but i don't want to push it anymore as this is when it starts whining. Turbo was ok before i got the engine rebuilt, is there anyway that leaving it sitting would make it degrade and whine like that???