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Discussion Starter #1
<img src="http://www.superford.org/getfile.php?id=86313&toggle=fullsize&f=tcover1.jpg">

<img src="http://www.superford.org/getfile.php?id=86314&toggle=fullsize&f=valveCover_tpan1.jpg">

That be PlastiKote Engine Enamel. Pan is HOT ROD WHITE with FORD RED letters, valve cover is FORD RED, I also want those grooves on top to be white. Both colors shine good in the sun. A word of advice to painters, when painting metal clean well, sand, clean again, use some primer, and then paint.
 

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Discussion Starter #2
Uh, I just got rid of J-MOD letters, now it's all HOT ROD WHITE. And I changed my mind on painting grooves on valve covers in white, it just gonna be red.
 

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Fry Rice Specialist
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will painting it black dissipate heat faster or hold it longer?
i want to check first before put on my new deep pan....
 

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Only you can prevent modular fires
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I liked how it said J mod!
 

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chuacw said:
will painting it black dissipate heat faster or hold it longer?
i want to check first before put on my new deep pan....
hold it longer. If your going to paint it, I don't think color will matter much since the trans pan doesn't get much sunlight.
 

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Uhhh.... GB, a thin coating of flat black helps dissipate heat...
Ask any racer, air-cooled engine racer, or your radiator.
Works better if there are fins on the inside as well...
 

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Discussion Starter #8
Hey, when you gonna install your pan no doubt it be greasy and oily! Plain ugly! <font size="4">DO NOT SPRAY BREAK CLEAN OVER YOUR PAINT!</font> Doing that will damage your paint job. Use simple green or engine degreaser instead.
 

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i like my trans pan better


and i dont have to worry about the paint running

Mike
 

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Discussion Starter #10
What is that?


No paint running dude. You paint the pan before you put it in. I painted mine 2 days before, it is possible to paint one on the spon, but it must be washed. 1 hour of drying is all it needs, then you just handle it gently.
 

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GregFL said:
Uhhh.... GB, a thin coating of flat black helps dissipate heat...
Ask any racer, air-cooled engine racer, or your radiator.
Works better if there are fins on the inside as well...
Can you explain this? Ever wear a black shirt and a white shirt on the same day....the white shirt is cooler, and no shirt is even cooler.

okcbird said:


Insert foot into mouth. Again.
At least Greg gave some info....your not helping at all.
 

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Discussion Starter #12
GB,

The way you understand black and white is true on the sun. Black absorbs more light, white reflects light. Try looking at a white paper on a sunny day, then come into a dark room.


I have no idea why black would dissipate heat under the car.
 

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Fry Rice Specialist
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so that's mean it is useless to paint my pan in order to get rid of the heat?
i would like to paint it blue but scare it will affect the effectiveness to dissipate the heat.
i have the b&m deep pan which still new in the box.
 

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i'm pretty sure the dissipation of heat, would be so negligible if it were painted that it really wouldn't matter what color you paint it. Unless the paint was an inch thick.

tony
 

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GreenBird said:


Can you explain this? Ever wear a black shirt and a white shirt on the same day....the white shirt is cooler, and no shirt is even cooler.
Do we really need to get into this again?

This is just like when people jumped on me for painting my upper intake black. The damn thing is not sitting in the SUN! Color has an effect on light energy it absorbs, but that is not a factor when it's under the hood/car. Like I said, insert foot into mouth. Again and again.

-J
 

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Ever wear a black shirt and a white shirt on the same day....the white shirt is cooler, and no shirt is even cooler.

So, if a white pan is cooler than a black pan, that must mean no pan is even better!

I'm gonna try this "no pan" mod tonight. I expect about a 15 deg. drop in trans temps.

And to think of the time I wasted installing that trans cooler.

Results will be posted as soon as i get em.

Mike J
 

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:uppoint: :uppoint: :uppoint:
 

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The no shirt would refer to no paint. No pan would be like taking off your skin.

I wasn't trying to say that it would be exactly like the shirt anlogy, but NO ONE has yet to explain why black would dissapate heat better.
 

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GreenBird said:
The no shirt would refer to no paint. No pan would be like taking off your skin.

I wasn't trying to say that it would be exactly like the shirt anlogy, but NO ONE has yet to explain why black would dissapate heat better.
Instead of having someone explain it why don't you do the research, if you've been into engines any amount of time at all you will know that flat black has been used to dissipate heat from things for a long time, VW enthusiast (especially air-cooled) know quite a bit about this, head to www.google.com for more.

-J
 

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This intrigued me when I first read about it and I remember hearing some VW guys actually talking about it one time, so I dug up the following:

http://www.globalwinusa.com/faqs/heatsink/color.html

And:

EMISSIVITY is the ratio of its power radiated per unit surface area to the power radiated per unit surface area of a black body at the same temperature. Materials with high emittance radiate more heat than materials with low emittance. For example, black surfaces have an emittance of 0.98 and a polished aluminum surface has an emittance of 0.04. Aluminum tends to block radiant heat transfer while black surfaces tend to emit significant heat.

From: http://www.deltacoat.com/how.htm

But I believe it is essentially the same science we all learned in 3rd grade science experiments in which the black thing got warmer in direct sunlight... this is simply what happens when no direct light is present. I think... ;)
 
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