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  #16 (permalink)  
Old 10-17-2003, 12:40 PM
S10 Super Sleepers
 
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I'm sorry, but I really don't know. Ceramic is basicly a thermalcoating. I've only seen it on overly hot items. I would say use the powder on the chassis but I really don't know the strength difference. Personaly I'd use POR-15. I can get all the free powdercoating I want and I still went with the POR-15. Its stronger and wears a hell of a lot better. Powdercoating is a little brittle so in abusive apps it tends to chip. I.E. under a vehicle.

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  #17 (permalink)  
Old 10-17-2003, 01:16 PM
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yeah i was thinkin about goin with the por-15, but one of my friends dad said that since its a hardcoat then it would chip a lot easier. he told me to go with ceramic, but i really havent ever heard anything bad about their coatings, besides i like some of their colors to
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  #18 (permalink)  
Old 10-17-2003, 01:22 PM
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Quote:
Originally posted by scott011422
I would think if you get a good radiator and a pump that doesn't pump so much volume that it creates cavitation that the heat buildup couldn't be too bad.
i agree. what did y'all end up telling the customers?
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  #19 (permalink)  
Old 10-17-2003, 01:25 PM
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what exactly does that mean???
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  #20 (permalink)  
Old 10-17-2003, 02:33 PM
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We told the customers that we were painters not engineers. They asked for us to paint their blocks with so and so paint. And thats what we did. Its up to the customer to figure out the physics. Lets see, wrap a hot object in an insualating material and the object gets hotter...... NO SH1T!!!! Besides, We're half paint shop and Machine shop. All they had to do was ask one of us engineers and I'm sure one of us knew for a fact that the paint was an insulator. If not, a few of us know that it just plan makes things warmer. OOhhh Wellll......

Last edited by scott011422; 10-17-2003 at 02:43 PM.
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  #21 (permalink)  
Old 10-17-2003, 09:21 PM
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Can you please post a picture of this powdercoated engine? I've seen many other coated parts, but I would really like to see how the engine came out. Thanks!

78SilverShark
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  #22 (permalink)  
Old 10-17-2003, 10:11 PM
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Me to. HG
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I was built with the body of a God! To bad it was buddah.

[url]http://www.hotrodders.com/forum/journal.php?action=view&journalid=2415[/url]

Hemmies rat journal below.

[url]http://www.hotrodders.com/forum/journal.php?s=f6d0e9c7fec644bb0a70761c0431939b&journalid=84231&action=view[/url]
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  #23 (permalink)  
Old 10-20-2003, 12:07 PM
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I powder coat all of my engines, frames, springs (better than Teflon lining!), exhaust except the header which is a little too hot - those I ceramic coat. Wears like iron, sheds dirt like the plague, and needs little or no maintenance. Never had the slightest problem with overheating. If you do a heat balance of an IC engine, you will come up with numbers like 24% of the energy goes to useable power, 30% goes out the radiator as heat loss, 45% goes to heat loss in the exhaust (apprximate - don't quote me on thoses but they are of the correct magnitude). The rest goes to incidental losses such and convection and radiant losses from the block and heads and is insignificant.
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  #24 (permalink)  
Old 10-20-2003, 03:24 PM
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Willys is right on, the heat loss through a block is practically nothing. I doubt you could actually tell much differance between a bare cast iron block and a painted one. If someone is claiming a heat related problem and blaming it on whatever they coated the block with, they better look elsewhere.

Vince
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