Titanium Valves

[mark m]

But I am living at Hong Kong and there is a lot of good machine shops. So I just think whether I can make some of these valves by them.

It is virtually impossible to do a one-off job cheaper or better than someone setup to do a production run of the same item. Economy of scale simply defeats you in this endeavor. For something you can buy as cheaply as valves, it is not worth considering. A valve is a finely machined and finish ground piece with a very sophisticated profile to allow for max performance and a long life in a very hostile environment. It would likely cost as much for a shop to do one custom valve as for an entire set of production valves from a performance shop.


Mark

 

[Guest]

But I am living at Hong Kong and there is a lot of good machine shops. So I just think whether I can make some of these valves by them.

It is virtually impossible to do a one-off job cheaper or better than someone setup to do a production run of the same item. Economy of scale simply defeats you in this endeavor. For something you can buy as cheaply as valves, it is not worth considering. A valve is a finely machined and finish ground piece with a very sophisticated profile to allow for max performance and a long life in a very hostile environment. It would likely cost as much for a shop to do one custom valve as for an entire set of production valves from a performance shop.


Mark

Not to mention that the stems are hard chrome plated then ground to size.

Valves are not machined from large bar stock. A 36 mm valve with a 7 mm stem doesn't start with a piece of stainless over 36 mm. It starts with a piece of material a little over 7mm and the head is forged ( smashed flat) then machined into the proper shape.

Jay