Ace, have you considered the 535 piston that nfield sells? Has anyone used it with success?
Yes, I'm aware of it. I don't know about anyone using it in a UCE,except Scooter Bob, and he's not with CMW anymore. It's actually a piston for an AVL.
At any rate, once we get the G5, and can do some inspection and measurements, we'll know what it can take.
If that piston is fine, then that's an option that can be used. If not, then pistons can be made.
If it can take a 535 overbore, then that's something that I'd like to do. it's worth a couple hp to do that, and it strengthens the torque curve all thru the range.
It all depends on the thickness of the cylinder bore liner in the barrel.
But if it can't take the 535(87mm) overbore, maybe it might take an 86mm overbore, and we can make pistons for that, or anything it can take. So, the options are wide open, and we just have to look at the bore liner thickness and see what is safe to do.
I think that whatever is used for a piston, we'll want to set the deck height for a proper squish band .
For me, the critical factors are doing things that meet the desired results that the users want, at costs low enough that they will pay, and with installation within their capabilities, so they can do it at home, or their dealer/mechanic can do it.
I have this feeling that a moderate power boost that is not too expensive, and easy to install will be attactive to the UCE owners generally.
And for people who want to go beyond that, we can go as far as they want to go with the modifications. The budget is always the limiting factor with stuff like this.