coated intake?????
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From: MOREHEAD KY
coated intake????? what do yall think about coating a vic jr intake with the same coating as like a set of headers? I mostly want it for the look,but my thought is that it would cause the intake to keep in heat and cost me power..... thought?
black attracts heat, white attracts alot less heat.
you're running an I/C though, i really wouldnt worry it about it at all. you could do testing with some kind of temp gun if you really want...
i really think it may transfer maybe 5* of AIT into the air, which may cost you 5hp or so...
you're running an I/C though, i really wouldnt worry it about it at all. you could do testing with some kind of temp gun if you really want...
i really think it may transfer maybe 5* of AIT into the air, which may cost you 5hp or so...
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If you have an intercooler, and the air passing through the intake is cooler than the ambient engine bay temp then I can't see how coating the intake would do anything other than minimize the amount of heat that is transferred back into the air as it passes through the intake.
How would you lose power?
How would you lose power?
because just like how an intercooler works (hot air passing through cold metal), a hot intake manifold can act as a heat sink. if its black, its going to attract more heat. being a turbocharged engine bay, there is naturally more heat trapped under the hood. notice how race cars usually dont have black intake manifolds? it looks good, but it does attract more heat.
i remember reading an article in CC where they tested painting the valley of a SBC intake. natural, white, and black. white made most power. how much? i dont remember...
of course, all this means alot less with a composite intake manifold.. and in reality, like i said above, its not gonna make any noticeable difference.
i remember reading an article in CC where they tested painting the valley of a SBC intake. natural, white, and black. white made most power. how much? i dont remember...
of course, all this means alot less with a composite intake manifold.. and in reality, like i said above, its not gonna make any noticeable difference.
Painting is not what the OP was talking about though. He was interested in coating with a ceramic insulator. Black doesn't "attract" more heat. Black absorbs more light from the visible light spectrum which is converted to heat and therefore could possibly slightly change intake air temps, however the amount of visible light in an engine bay is pretty negligible.
I might be wrong, but I'm pretty sure that color has a negligible effect on the absorption of infrared radiation.
OP - I can't see how thermally insulating your intake manifold would do anything but have a positive effect for you, even though I think the increase would be very small. The bottom line is that it's your intake, and if you like how it looks better coated, knock yourself out.
I might be wrong, but I'm pretty sure that color has a negligible effect on the absorption of infrared radiation.
OP - I can't see how thermally insulating your intake manifold would do anything but have a positive effect for you, even though I think the increase would be very small. The bottom line is that it's your intake, and if you like how it looks better coated, knock yourself out.
Painting is not what the OP was talking about though. He was interested in coating with a ceramic insulator. Black doesn't "attract" more heat. Black absorbs more light from the visible light spectrum which is converted to heat and therefore could possibly slightly change intake air temps, however the amount of visible light in an engine bay is pretty negligible.
I might be wrong, but I'm pretty sure that color has a negligible effect on the absorption of infrared radiation.
OP - I can't see how thermally insulating your intake manifold would do anything but have a positive effect for you, even though I think the increase would be very small. The bottom line is that it's your intake, and if you like how it looks better coated, knock yourself out.
I might be wrong, but I'm pretty sure that color has a negligible effect on the absorption of infrared radiation.
OP - I can't see how thermally insulating your intake manifold would do anything but have a positive effect for you, even though I think the increase would be very small. The bottom line is that it's your intake, and if you like how it looks better coated, knock yourself out.
http://www.techlinecoatings.com/arti...ld_Article.htm
i've never thought about coating the inside of the runners, and it may be a little over the top, but it certainly would help retain heat. NASCAR intakes are coated, but with a natural AL finish, and only on the exterior.
to be honest, this may be one of the most intersting theads on tech right now, now that i do research.
http://www.practicalmachinist.com/vb...ercoat-209958/
read the post by "forrest addy"
http://www.physicsforums.com/showthread.php?t=8897
also posts by "intergal"
"Black tends to adsorp a wider band of energy then lighter colors which reflect more, thus black surfaces can be warmer then light. There is much more then just color involved, so this is pretty much a generaliztion which may not be true in every case."
either way it interesting, and makes me want to take a college physics or thermodynamic specific class..
This is only true when it comes to sunlight, even then it doesnt "attract" it just has the ability to absorb more wavelengths. Unless hes driving around without a hood on the color of his intake will have no bearing on the amount of heat it attracts.
Paint/powdercoat it black!
Paint/powdercoat it black!
I think it has more to do with where is the actual heat source and where would you like the heat to go. If you want to protect the charge from heat drawn through the exterior of the intake from high underhood temps and close proximity to heat sources like exhaust parts you might want to thermal coat just the inside of the intake. If your charge air is 160 degrees and you are wondering why your intake is hot to the touch it might be because the intake is actually drawing some heat from the charge and insulating it would only make the IAT's go up higher. The only way you will know for sure is to put temp sensors all over it and take it through a few heat cycles and watch what is warming up and how fast.
Also keep in mind if you coat the inside of a manifold that any ceramic that flakes off will be less than friendly for the engine to pass.
Also keep in mind if you coat the inside of a manifold that any ceramic that flakes off will be less than friendly for the engine to pass.