Time to present the "GO BIG.."-project! With pics
12-17-2006, 11:51 AM
#181
Nordschleife Master
Thread Starter
Originally Posted by OZ951
These comments are wrong. The emissivity of aluminium is around 0.3 or something like that (depending on surface condition). If you paint it the emissivity will be around 0.9. The paint colour doesnt matter all that much and surprisingly whites can even give better results than black due to factors of reflectivity as well as emissivity. So painting the block does allow it to radiate more heat.
Didn't find the "hard evidence" I thought I had in some of my books except for a or Skyline GTR with factory black painted IC that was stripped of paint and had the intake temp raised as a result of this.
12-17-2006, 02:56 PM
#182
Instructor
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I did not doubt that the emission of radiation increases due to painting. What I doubted was that this was benficial for cooling in total due to restricting conduction to the air.
Just one last argument: I have not seen any Le Mans or F1 engine block nor intercooler or radiator beeing painted jet. If it would be of any benifit painting those parts, even if marginal,it would have been done due to packaging advantages and/or drag reduction (and I know what I am talking about here). Big money is spent developing those components.
Just one last argument: I have not seen any Le Mans or F1 engine block nor intercooler or radiator beeing painted jet. If it would be of any benifit painting those parts, even if marginal,it would have been done due to packaging advantages and/or drag reduction (and I know what I am talking about here). Big money is spent developing those components.
12-20-2006, 04:36 PM
#188
Race Director
Originally Posted by RolexNJ
Oh God, here goes Anders! Speak English!
12-20-2006, 04:39 PM
#189
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Originally Posted by sweanders
Kolla, det funkar redan.. Nu måste vi bara hitta på något tramsigt ämne att samtala om och nämna Rolex i var och varannan mening..
