Valvetrain lightening, For higher revs.... Options

[alpha434]

Here's a picture of a rocker that we did for a 356.

And BTW. Our 356's rev 8000.

[Katmanken]

Alpha, Jake,

Ever considered using wire EDM or ram EDM to make holes or lighten the parts?

With the wire, you can make the holes larger, with the ram, you make a copper electrode to the final shape and burn yer way through the part to the final result. With the right shaped electrode, you can reduce outside profile, modify the inner profile (to thin the walls where you want, and add lightening holes.

Finish is rough, but that's what tumble deburr and polishing is for. Also can make a gang electrode to do multiple parts simultaneously. That's where CNC shines....(IMG:http://www.914world.com/bbs2/html/emoticons/idea.gif)

Need a good fixture to hold a set of rockers in alignment, a good electrode, and an evening of EDM run time. Can also flip parts over and do farside for the other side inner profile.

Alpha, know how much you LOVE machining copper... (IMG:http://www.914world.com/bbs2/html/emoticons/happy11.gif)

Anyway, sumpthin to think about.... Prolly not cheap but 100 hours at whatever they pay you might make it cost effective.

Ken