I guess this may be an ignorant question, but is a pressure relief valve necessary when running an isolated intercooler system? Will the coolant really build up enough heat as it cycles through to build up excessive pressure?
I was just planning to run my return lines to a 1 gallon resevoir which will gravity feed the Johnson pump and then the pump will push the fluid through the entire system and back to the resevoir. I plan to test it out this weekend, but if someone with more knowledge on this subject thinks it's a bad idea, please let me know.