So last week and replaced my old wastegate with a new forged one, and the cars runs much much better. I think the old one was not leaking yet but it was a matter of time before it was going to. The spring was way weak so it could have lead to the wastegate not shutting or opening too soon. Anyway, after replacing it I noticed that I had to recalibrate the MBC. It was holding at 8 and spicked at 10, but after I set it to that again it spikes at 12 and holds at 8psi (most times), does this mean my MBC is not up to par and I need to get a better one? I plan to get the ATP boost nipple to have the MBC and wastegate run just off the turbo and not the intake manifold. Oh also if I roll into the boost it holds like a champ, but if I stomp on it I get 10psi sometimes and other times I get 6psi......One last thing is the boost also creeps up from 8psi to 10psi at redline (from what I can see it starts to climb after 6000 rpms, this didn't happen with the old wastegate)..........any ideas on what could help me get rid of this issue?
Oh parts list.
Upgraded hard pipes, relocated MAF, upgraded SMIC, Upgraded J and mid pipe with no cats, Injen CAI, new forged BPV, new forged wastegate
new plugs, wires and coils, car was seafoamed a month ago, and new PCV.
Thanks