OST-019: Collaboration

[oldeskewltoy]

The bowls have had a basic shaping to them, they now match the valve seats. Note each port has a 2mm - 4mm bevel around the entire port. If you are sharp eyed, you'll note the far right port shows a bit of port work already



Here is a closer view of that port work....



Not an uncommon scene in one of my smallport heads - half done showing before and after in the same shot. I've removed the pocket @ the junction of port roof/wall and bowl roof/wall, but there is a lot more there then just a bit of smooth transition.


Maybe this view will help....



The right hand side of the port roof has moved significantly - the right hand side manifold edge is no closer to the gasket then the left hand side. What has changed is the bevel has been removed, and the port roof now has a gradual taper forward to the base of the splitter/guide bosses. This gradual taper allows for more high pressure air, while @ the same time beginning to get the air charge bending towards the valve.