View Single Post
Old 08-18-2019, 01:39 PM   #11
drolston
Senior Member
 
drolston's Avatar
 
Join Date: Jun 2014
Location: Williamsburg, VA
Posts: 1,623
Default Re: Finally got it to not overheat!

Quote:
Originally Posted by 40cpe View Post
Can you tell us how many rows of tubes (front to back) each radiator has?
Champion aluminum radiator three rows; truck radiator four, and the truck radiator tubes look a bit wider (front to back). So the surface area exposed to air flow is much greater, and that is the dominant factor in a heat exchanger.

That same factor explains why big inch engines put more demands on the cooling system than stock engines. My engine exposes 343.4 square inches of cylinder walls to combustion heat, versus 300.4 for the stock engine. That is a 14% increase in heat transfer to the cooling system. That is compounded by greater volume of hotter gasses passing through the exhaust passages in the water jacket.
drolston is offline   Reply With Quote