Quote Originally Posted by Cathar View Post
If anyone wants to buy the Koolance radiator separately, for testing purposes, it can be done so here:
http://www.koolance.com/shop/product...roducts_id=241

Interesting. Plugged in the Koolance specs into the air-flow resistance calculator, and actually arrive at a value consistent (within 3%) of what is stated for their radiator. For the PA/GTS, the calculated values and the reported values disagree by a huge amount.
Cathar, are you are basing the reported values indicated on the KATECH documentation?

Looking at their radiator, it appears that the tubes would themselves be obstructing airflow to a certain degree.