Anybody want some high performance aftermarket pistons?

[nova_robotics]

I was convinced, despite rough setting, doing well and efficient (though labor intensive) job. Until the lathe chuck and hack saw cutting off sprues, turning in a 3 jaw instead some manner of fixture, until scattered die castings went in with used pistons (and of course the usual sandals and flannel pajama pants) a modern thriving enterprise! Cough, cough. It's hard not being judgemental holding other circumstances up to the wrong environment.
Watching is an eye opener. Motorcycle side covers are not equivalent aluminum to what makes pistons. The perma-mold and cores used were not all that crude, no one sitting around, and the volume says they're selling.

That drill press was just painful to watch. I didn't like cutting the grooves for the rings either. But my main complaint is machining out the bores for the wrist pin. There was absolutely no attempt to make the wrist pin bores square to the piston.

[Toolmaker51]

That drill press was just painful to watch. I didn't like cutting the grooves for the rings either. But my main complaint is machining out the bores for the wrist pin. There was absolutely no attempt to make the wrist pin bores square to the piston.

The engine compensates for the off-position of wrist-pin, the connecting rods [of equally poor quality] adjust by bending.

Can't help but watch, envisioning how to boost output and quality with proper fixtures, via exact equipment in use.