Wes wrote:
Tim Wescott wrote:

Did you rework it or did you make it from scratch?
From scratch -- I only have one high compression head, and it's still
good. There's no way I'm cutting that up!


Did you take pictures of your setups as you made it?

Didn't think of it -- I just took an aluminum bar and hacked away
everything that didn't look like what I wanted.

I don't know that doing so would have been a public service, other than
an example of how one hack-job amateur took care of the work.

I'm planning on doing a few, to experiment with compression ratios and
combustion chamber shape, so I'll think about doing it then.

I'm on a bit of a mission. You can get these adapters, but the word on
the street is that they don't work as well as the Cox heads, because not
much attention is paid to combustion chamber shape. So I'm interested
not only in "can I make this work", but "can I make this work well", and
"can I make this work for low nitro fuel".

--
Tim Wescott
Control system and signal processing consulting
www.wescottdesign.com