ratter Member 6,793 Member For: 18y 6m 4d Gender: Male Location: @ my laptop Posted 09/07/14 09:07 AM Share Posted 09/07/14 09:07 AM Probably because some work better than others 1 Link to comment Share on other sites More sharing options...
Seaton Donating Members 537 Member For: 12y 3m 4d Gender: Male Location: Sydney Posted 09/07/14 09:44 AM Share Posted 09/07/14 09:44 AM Does black colour give better performance?Actually.......Yes. Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 6m 4d Gender: Male Location: @ my laptop Posted 09/07/14 11:40 AM Share Posted 09/07/14 11:40 AM Does black heat soak more when stationary? 1 Link to comment Share on other sites More sharing options...
MattyP MattyP Cruise Control 6,317 Member For: 12y 6m 27d Gender: Male Location: Central Coast Posted 09/07/14 04:11 PM Share Posted 09/07/14 04:11 PM It radiates the heat away betterAlso absorbs it better when in sunlight Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 6m 4d Gender: Male Location: @ my laptop Posted 09/07/14 08:26 PM Share Posted 09/07/14 08:26 PM So sitting stationary it would be absorbing more heat from the radiator and air con? Link to comment Share on other sites More sharing options...
MattyP MattyP Cruise Control 6,317 Member For: 12y 6m 27d Gender: Male Location: Central Coast Posted 09/07/14 09:47 PM Share Posted 09/07/14 09:47 PM To a degree yes My understanding from a physics stand point is most of the heat from the AC and radiator is emitted out upwards and outwards because of the pull on the air by the radiator fans. The radiation of the heat from the cooler would be greater than the residual heat soak after the car is warmed up when light is emitted, a photon of light comes in and hits an electron, giving it some energy so it increases its energy. whether it’s absorbed or not will depend on the structure of the electrons. If there's somewhere for the electron to go, if it can increase it's energy level - and it’s happy up there - then it will absorb the light. If not, then the light can't be absorbed and carries straight on. But if it is absorbed, the substance looks black. If it isn't, it’s white because the light is reflected.This means that if you heat something up, if there's somewhere for the electrons to go up to, and it’s black, then there's also somewhere for the electron to drop down to again, meaning that the substance will also emit energy. So if something is good at absorbing light then it’s also good at emitting it. So a black thing should be much better emitting light than a white thing.Credit to http://www.thenakedscientists.com/HTML/questions/question/3136/ 1 Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 6m 4d Gender: Male Location: @ my laptop Posted 09/07/14 10:19 PM Share Posted 09/07/14 10:19 PM but if you are stationary and the fans are not activated the hot air from the radiator will be emitted forwards as well Link to comment Share on other sites More sharing options...
MattyP MattyP Cruise Control 6,317 Member For: 12y 6m 27d Gender: Male Location: Central Coast Posted 09/07/14 10:24 PM Share Posted 09/07/14 10:24 PM Correct The black core will warm up faster but operate at a lower temp The polished will take longer to warm up but operate at a higher temp Link to comment Share on other sites More sharing options...
MattyP MattyP Cruise Control 6,317 Member For: 12y 6m 27d Gender: Male Location: Central Coast Posted 09/07/14 10:26 PM Share Posted 09/07/14 10:26 PM The space shuttles radiators are (well were) painted black for this very reason. Link to comment Share on other sites More sharing options...
ratter Member 6,793 Member For: 18y 6m 4d Gender: Male Location: @ my laptop Posted 09/07/14 10:31 PM Share Posted 09/07/14 10:31 PM so based on the answer to my question, then the mightycar mods comparison was not conducted 100% correct Link to comment Share on other sites More sharing options...
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