OST-020: Variables

[oldeskewltoy]

My, my, my, my, my............ I had a busy week, the O/S valve head (OST-017) is on its way back to its owner....

so now I can fully focus on OST-020. To rehash....

The head is in process...
FROM....

TO....


and now I begin the work on the bowls and seats



The sharp of eye will see the 4 intake bowls on the right have begun, while the 4 on the left are still untouched... as are all of the exhausts bowls


A closer view of what I'm doing inside the bowls show more than just seat to bowl blending, the outer port walls are the topic in this 2 panel... note the intrusion on both outer port walls into the port.

photo is showing 2 different chambers/sets of bowls.


If you look carefully @ the right hand bowl in the top of the above 2 panel, you can plainly see the bowl wall is FLAT. The lower view shows the bowl walls carrying the same arc as the inside of the valve seat. The guides have also been tapered back to allow for additional airflow

more to come...