Tim's Type 65 Build - Cockpit Wiring Finished?

[edwardb]

I know there have been some posts on this in the past but I never really understood. Is there a downside to using the standard reservoir FF includes with the coyote?

From a functionality standpoint, no. I simply wanted to use the Boig cool tubes and like the idea of the cap and reservoir being a discreet unit. So we introduce all this complexity for the sake of how it looks...

There is a little more to it. First off it's how the engineers at Ford designed it to work. Blocking off multiple connections on the Coyote may be OK. Many have done it. But not my personal choice. Probably the biggest advantage is it's "self-burping" meaning no air will be trapped in the cooling system. This can be a problem to clear and bad if you don't know. Again, not insurmountable at all. But with the OE system, it takes care of it. Just keep filling the expansion tank until the level is stable (e.g. all the air has been evacuated) and you're done. Granted, only an issue for the original fill and then later when the coolant is changed. But nice to not have to worry about it. Final point, although minor, is it's a closed system. Under normal use, it doesn't dump coolant. A traditional overflow tank can.