i know they arent forged, but a chunk of metal is a chunk of metal to some extent. ring lands DO NOT CRACK OR MELT without mistune. no engine will take much mistune at high power levels. the tune needs to be right.
i wont make you get out the books, but i will continue to doubt that they are of any different construction to the f2t pistons.
i've been on here for a long time now, and all the engines that have died with the few exceptions of non piston/ring/headgasket failures have died because of non ideal tune. the vast majority have been stockers modded for higher boost on oem ecus with stock maps or maps chucked in by someone in a different city that they just cross their fingers is correct.
you arent going to melt a piston or crack it without detonation. it just wont happen. if the f2 pistons fit and have the right deck, and pin, and valve reliefs and a good ~= 7:1 - 8:1 comp ratio, i bet big power could be made on them with pump gas. for pump gas, low comp + high boost = big power.
what schwine said is also right,
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and in my opinion if your not going to be making a lot of power with your fe3, then don't bother building it and stick with the f2t.
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i disagree about the piston comment though. ya kinda contradicted yourself there...
what forged pistons provide is a resistance to poor tune and detonation that the stockers dont have. you headgasket will eat dust if your pistons are strong. neither will die if you are just making good safe power.
will try to find a pic of another member which i saved a long time ago of a hg.
end rant.