afm:


I think that's what we are truly trying to find out.

Are they really better or is it just marketing hype?

I have been talking with a friend who races SCCA and knows a great deal about building real engines.

From what I have told him about the high Silicon content, he believes it is a variation of the hypereutectic form of making pistons for real engines.

Best to worse in this order for real engine pistons.

Machined
hypereutectic
cast


We also discussed what it really buys us in the RC world since our engines work off of taper. We kinda concluded that yes, the piston may be better than a typical cast one but the sleeve is still the same so you might not gain that much of an advantage.


Who knows, we could be way off base. maybe someone can confirm or discredit it.