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      01-02-2011, 03:15 PM   #197
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Drives: 335i coupe
Join Date: May 2010
Location: VA

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Originally Posted by R1000K3 View Post
How in the whole world could we know the critical value for EGT vs. piston scuffing? It is also not a momentary figure that can be monitored in the exhaust system, it is the actual temperature of the piston skirt vs. available clearance that sets the limit.
I wasnt speaking of scuffing the wall, I was talking about the heat of the internals and their structural integrity under high temps. Keeping them below a certain threshold( i have not tested this) will help engine life last longer. I cannot see a direct relationship between temps and wall scuffing tho.
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