Originally Posted by MMZ_TimeLord

Yeah, I saw that kit. It would be easy enough to try, but I'd like to have the tank just in case.

If in fact the inter cooler coolant temperatures never get above boiling then the expansion pressure would do nearly nothing. But if you close those valves while the system is at running temperature. Then you create a mild vacuum when the fluid is cold and mild pressure when the fluid gets above normal operating temperature.

That's why I would prefer to have a small tank with a reserve and air space for expansion. I'll put a pressure cap on mine, probably only 7lbs.

I'll be back to post pictures and results for sure when all is said an done, but it may be a week or so.