egts whats pushing it
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Joined: Sep 2007
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From: COLDWATER On
egts whats pushing it
I know this is probly not the best thing for my cracked block but i'm not real worried about that, seein as though i have a motor sitting in garage waitin to go in but i don't wanna completly smoke the one i the truck, I have a guy from ford who's willing to look at the block " not that i expect anything from ford " but if they open it up and the pistons are melted how far will i get? so my question is how hot for how long theres a sled pulling event an i wanna get in on it....
Lead Driver
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i was always told 1200* for an extended period (30sec +) would cause serious problems. what problems would that be?
got me curious now.
Post Fiend
Joined: Jul 2005
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From: 21791
You would have to hold 1700* for 30 seconds to cause any problems... aluminum in pure form doesnt even melt at 1200* and thats not considering its alloyed with other metals, it is cooled from cooled intake air, cooled from an oil jet below, and cooled from the water jackets surrounding the cylinder.
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Lead Driver
Joined: Dec 2003
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that is what i thought, but not being a motorhead, i was unsure about rings and bolts... and the spec tolerances.
it's the same simple temperature idea that I always throw back in the face of the 9/11 conspiracy theorists.
i've got an understanding of the limits of my 7.3- thanks to all of you here!!
glad your getting better Kris!
it's the same simple temperature idea that I always throw back in the face of the 9/11 conspiracy theorists.
i've got an understanding of the limits of my 7.3- thanks to all of you here!!
glad your getting better Kris!
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Post Fiend
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From: Parker, CO
The higher the EGT's, the quicker heat soak sets into the pistons and begins to melt them.
With that said, any time you drag race or sled pull, you aren't hot enough for a long enough amount of time to melt the pistons. Go ahead and have fun at the pull, and let us know how you do.
With that said, any time you drag race or sled pull, you aren't hot enough for a long enough amount of time to melt the pistons. Go ahead and have fun at the pull, and let us know how you do.
Lead Driver
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A friend of mine has a stock engine, stock injectors, air intake, 4"exhaust, etc, and he melted a piston, mind you he has giant tires...
(stacked chips)
Also, EGTs are NOT combustion temperatures, only exhaust. Exhaust is a lot cooler than actual combustion temperatures.
