I don't come around much any more, I am very busy with other things now ... I auto-x once a month, but other than that, I don't do much, performance or mod-wise with the Teg.
What is the point of what I just said? ... Well, when I was last here, Mike D had recently decided to take a break from his forum, and now ... I return to see him post something like this.
Thanks Mike - It's nice to have an educational post to participate in. Good to see you back (or for all I know, you have BEEN back) anyway, good to see you around still.
And as for the question, and I am pretty much 'shooting from the hip' here (in other words, I haven't reviewed the articles recently), I would say that the flat-topped pistons would burn more efficiently.
The flat-topped piston looks more like what I would expect a stock piston to look like. And when I think of stock Honda parts, I think of balance. So, while I am sure it makes good power, I would expect that they would have balanced the power output characteristics with equal parts of energy efficient-emissions friendly characteristics.
The domed pistons look like specialized race bred parts. The severe angles on the domes are probably there to aid in creating and sustaining aggressive airflow patterns. Such as increased scavenging and whatnot.
Ok, please ... if I am way off base, and totally wrong, please, nobody flame me too bad. Hey, I am here to learn too, and after all ... I gave it a shot.
(Maybe tomorrow I will read the articles to see if I was headed in the right direction.)
Humn, I just read the topic of the post and the question in the first post again ... Ok, the topic is which will burn more efficiently. I picked the flat-topped piston. And as for which would I prefer to have? The same one ... My teg is a grocery getter too.