So I found out my 1uz-fe has hyper-eutectic pistons...which means the aluminum pistons are alloyed with silicon to make a "better piston". Makes them stronger than cast but not near as strong as forged.
I would assume our f22's pistons are eutectic as well, but are they?
:FROM WIKI:
"By adding silicon to the piston's alloy, the piston expansion was dramatically reduced. This allowed engineers to specify a much tighter cold-fit between the piston and the cylinder liner. Another benefit of adding silicon is that the piston becomes harder and is less susceptible to scuffing which can occur when a soft aluminum piston is cold-revved in a relatively dry cylinder on start-up or during abnormally high operating temperatures.
The biggest drawback of adding silicon to pistons is that the piston becomes more brittle as the ratio of silicon is added. This makes the piston more susceptible to cracking if the engine experiences pre-ignition or detonation."
I would assume our f22's pistons are eutectic as well, but are they?
:FROM WIKI:
"By adding silicon to the piston's alloy, the piston expansion was dramatically reduced. This allowed engineers to specify a much tighter cold-fit between the piston and the cylinder liner. Another benefit of adding silicon is that the piston becomes harder and is less susceptible to scuffing which can occur when a soft aluminum piston is cold-revved in a relatively dry cylinder on start-up or during abnormally high operating temperatures.
The biggest drawback of adding silicon to pistons is that the piston becomes more brittle as the ratio of silicon is added. This makes the piston more susceptible to cracking if the engine experiences pre-ignition or detonation."
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I am attempting to gain more than what I've seen on wiki and another forum...I've found enough for what I need...really curious as to whether f22's are.
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