Let me know how going back to stock snail fares for you. On same boat with whoosh hybrid tracspec + the whoosh ported exh manifold. I also have heavy white smoke only at idle, occasionally but more often lately.
My major mods:
Catless DP, Thermal R&D Exh
Whoosh Hybrid, Ramair
cold air intake, Whoosh intake hose, Ramair crossover pipe, 2015 evap lines on a 2016
Damond catch can, Iridium
spark plugs
JID03,
do you notice a slight change in tone right before it starts smoking too?
When i get home, if i step out of the car immediately there's no smoke but a few seconds later the tone of the exhaust sound changes and then the smoke starts. If i was driving it hard it would not smoke as bad or at all, but if i cruise at around 2500 and then let the car sit for a bit the smoke starts.
My car like yours runs perfectly otherwise, its just generally very embarrassing at stops or when picking up food. Since its a new hybrid, maybe there's something we haven't quite figured out yet. Last mechanic I took it to suspected too much fuel and another suspected turbo seals.
There was another dude on Reddit that had same issue with the same hybrid, he ended up going back to stock and selling the fiesta to not have to deal with it anymore. He also had every catch can there is.
He mentioned that he spoke to Ford and they suggested it was either a bad
cylinder head/valve guides, a bad oil to air separator, or bad turbo.
Yesterday I had the local Lee Myles check everything over, compression/blocktest/plugs etc and all is 100%. Their best guess for the smoke was the tune running too rich.
With the running of the heavier oil, maybe the oil to air separator is a valid direction but wouldnt it still burn blue instead of white???
