first head button turned out OK

[RodneyPierce]

Well, this is the first one, and made it tonight:

plug face .105 away from the piston, 1* squish, .21cc bowl volume with plug, .006 head clearance. Would like to make a tool with abit tighter radius. Going to go play around with that tonight.

 

[misshydro]

Well, this is the first one, and made it tonight:

plug face .105 away from the piston, 1* squish, .21cc bowl volume with plug, .006 head clearance. Would like to make a tool with abit tighter radius. Going to go play around with that tonight.

what engine is that for?

 

[RodneyPierce]

Its going on a Go .21

 

[Terry Keeley]

Looks great!

What's stock volume?

 

[RodneyPierce]

Terry, stock volume is .19 This is one I turned out from some 6061 stock.

 

[Kevin Krogness]

Hmmm going to be some tough competion if you come to MN this year with all sorts of buttons!!! So are you trying a bunch of buttons in the ss21?

 

[Mark Leyde]

Nice job on the head button Rodney.

Mark

 

[RodneyPierce]

Thanks Mark. Kroggs, I have 2 buttons here to try. One is .21cc with a 1* squish, .105 plug face to piston face. The other is a .20cc button with 3* squish, and about a .030 band around the outside of the squish band. .100 plug face to piston face. might work, might not. two different bowl shapes. The later is more of a flat roof with a sharper curve and straight wall. Then the above has more of a radius, but obviously not as much as a ball end mill.