Just curious who's using 2618 hypo-eutectic alloy and whos using 4032 eutectic alloy pistons for the 2ZZ, and at what HP?
Alloy is only one small portion of microstructure. It has more to do with process; including casting/forging, heat treatment, shot peening, etc.Maybe I should have clarified; noise as in the piston slap upon startup. And correct me if I'm wrong, but "metallurgic microstructure" relates to the alloy...
Opinions are like a$$holes, and pistons are more complicated than choosing an alloy. If there were piston design engineers on here then that single post would be more valuable than a poll on thousands of the ignorant. I am in the later group, but am resisting posting a non-factual opinion, because the question, as well as to whom it is directed, is flawed.Hence why I said "related" and not "is the same thing"
Forget it, clearly no one feels like sharing their opinion on alloy choice here
Again it is complicated.And again; taking one slice of the pie at a time. Starting to sound like a crime by looking at the aspects individually.
Surprising to hear that about Wiseco... :huh: I thought they had a very good reputation... But they did learn from their mistake... Too bad it cost you too...Valve reliefs... We found that the wiseco pistons had the valve reliefs miscut early on. through a lot of fighting with them, we got them to acknowledge their mishap and they changed their design accordingly. Terrible experience that cost us a lot of money, time, and gray hair. I won't deal with them again unless I have to