I haven't done much of anything to the Fiero lately. I was busy with two slot car tracks, and then it was camping out west in Banff Alberta for almost 5 weeks. While I was building the second track, I had to move the Fiero out of it's shed to get more space and it got rained on- a lot. I took it for a ride after the track was done and did not realize that the air filter was sopping wet and this happened:
The paper filter was so wet the turbo sucked and shredded a bunch of it in to the charge piping. Where it found it's way to the heat exchanger and almost
plugged it solid. Above 3000 RPM the engine would lose all of it's power. Amazing that it even got out of the driveway when you think about it.
I carefully cleaned it all out and got the charge piping back together. There was also a cracked fitting on the water side of the heat exchanger that I had to fix. While I was at that I moved where the resorvoir feeds the pump to keep the pump impeller wet on startup.
I have driven it a bit and there does not seem to be any damage to the turbo. I ordered a cone flanged air filter from frozenboost.com and it has protective wire mesh on both sides of the filter so I don't think I will see a repeat of this problem.
[This message has been edited by wftb (edited 09-28-2020).]