Extrude Honing

[D87]

https://jalopnik.com/watching-abrasive-flow-cleaning-of-an-engine-is-so-mesm-1829932593

I know this is pretty far down the road since everyone's still working to find the limit on the Lambda II but with the design of the heads and the turbo mounted directly to it i bet this could get some incredible gains. Spool time would probably be ridiculously quick even with a larger turbo. Thoughts?

 

[SteveCo]

First time I've seen that process used. Saves a huge amount of time over traditional port smoothing, and looks like some very impressive gains in airflow as well as flow balancing.

 

[djerickd]

anyone try this? Can they do plastic?