Re: [T3] is painting the engine good or bad?

[Aaron Clow <cars@tiserves.com>]

<x-flowed>Jim Adney wrote:

> One could argue that a layer of paint would act as something of a thermal 
> insulator, which would make the engine run slightly hotter. I'd not expect the 
> effect to amount to much, but I really don't know. The Bill Fisher book 
> suggests that a THIN coat of black might actually help shed heat, just because 
> black is the best emitter (the best absorber is also the best emitter.) There's 
> a problem with this, however, because what we're really interested here is how 
> it acts in the far infrared, so the color our eyes see is likely to be 
> irrelevant.  
I know some on the list aren't fans of the POR products, but not only 
has the POR hi-temp paint not peeled off my new cylinders (yet, anyway), 
it applies almost like stain since it's so thin. Once the engine warms 
up it kind of "bakes" onto the cylinders and it's hard to think that it 
would peel off at all. Like I said, it seems like it's more of a stain 
than a paint.

Aaron

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