Cyberkreig wrote:and i say your probably dont know what your talking about. Radiator paint is designed to allow the transfer of heat. Aslong as you dont block any off the fins there should be no problem.
It is a simple matter of thermodynamics and heat transfer/absorbsion. 1.Black absorbs heat so when you want your I/C to be cool as possible it will be working over time getting hot in direct sunlight2. Radiators don's face direct sunlight so them being black doesn't have as big of an effect on performance (i/e it will be hot anyway)3. Stock radiators are black because most of them have plastic endtanks and they don't show discoloration as much.
Why don't you think Blitz, Greddy, HKS, HPI, Spearco offer black or otherwise colored FMICs? Because they are not as efficent as possible and don't offer maximum gains.
If you leave both a painted I/C and unpainted I/C in direct sunlight long enough they will eventually be the same temp but the unpainted will take longer to get to the same heat temp as the painted one.
The painted one being "insulated" will also recover slower from heat soak