Not trying to hijack C but chasing a "similar problem".
Rob what is an accepted difference/variance?
I checked factory service manual cooling section ....nada...smallest section in manual lol.
That's a good question and I think the answer will vary from application to application. For a mild to moderate build, I would think that at least a 20* drop from top inlet to the radiator to bottom outlet of the radiator would be acceptable. That's just a guess. Maybe someone can chime in whose actually done it recently, as I have not since I am not currently chasing this problem. ........thank goodness. LOL
