451 overheating, even when moving

George Jets said
Was going to mention this earlier, but thought I would give the OP a go at his post #26 to see if things improve.

Here is a short mechanical fan that can go on next with no shroud. 18" fan fits the application well and moves good air.

View attachment 1716112604

☆☆☆☆☆

If I had a mechanical blade to put in there, I would :(

At least to see if there's even enough clearance once the e fans are gone

Gonna take it out again tomorrow morning, see if the burping and correct fan shroud placement solves anything