Thread: Most Power seen with hypereutectic pistons?

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Originally Posted by chevyhurstolds

Now I know for a fact these pistons are structurally stronger than forged pistons . . .

Where did you hear that? Hypereutectic pistons are still cast pistons--stronger than a straight cast piston--but not a strong as a forged piston.

Originally Posted by rumrumm

Where did you hear that? Hypereutectic pistons are still cast pistons--stronger than a straight cast piston--but not a strong as a forged piston.

Yes in fact they are stronger. This is because cast and hypereutectic pistons are a harder material than forged. Much like a grade 8 bolt compared to a grade five. But like the grade 8 bolts since they are harder they are also more brittle and will snap or break when stressed the right way.(like bending the grade 8 or detonation on the casted pistons) but forged on the other hand are more forgiving than cast and hypers like grade five they absorb the energy and last longer under detonation. (although enough detonation kills ultimately every piston) This theory is based on examples and tests documented and proven by a well known engine builder David Visard. But my thoughts are that I have not seen a hyper piston used in a more powerful engine that has knock under control and not a factor of piston selection. Thank you for your input.