turbo: blow thru vs. draw thru

Well the compressor wheel looks like it has a trashed blade, but those are not expensive.

The tips of the turbine wheel are the important part, and they are not visible until you pull the exhaust housing off.

Did someone find this unit in a swamp? It has been wet for a while.

I would contact Rotomaster about parts. There is a link on their site to the service manual so you will know how to get it apart without damage.

That exhaust downpipe needs to go.

That is an early Rotomaster wastegate. It should be ok, and they probably still sell diaphrams for it.

That intake adapter is the part that Accel was selling at one time. The two discs were supposed to float on the shoulder bolts and act as a "Priority Valve" Martin did an end run with the reed valves. Can't tell for sure, but it looks like the valves may have been disabled.

All of it can be brought back to spec. It will all clean up.
The electrical device in the return pipe is a Hobbs switch. Usually used to activate the water injection under boost.

B.