I'd love so see some radiator air pressure resistance curves.
The only online one I've been able to find is from BillA.
Radiator Heat Dissipation Testing (pg4) - scroll down to the chart labeled "
Static Backpressure vs. Air Flow". This is now very outdated in the sense that there are only two radiators listed that you can still get:
- The "big momma" radiator is a 6x6x2 heater core (with restrictive barbs, but we don't care about that for air resistance).
- I
think the "original" Black Ice is the same as the current Black Ice Pro (only the BIP now comes with 1/2" beaded inlet/outlet).
I'd love to see more info about other radiators/cores if someone had the equipment and felt so motivated (read: "doesn't have a life"
)
Did
cpl1234 have some data elsewhere? IMHO, the comments are all common-sensical, but I'd love to see which radiators/fans he's basing that on.
Oh - then there's the whole issue that axial fans, thick bodied or not, are really
not appropriate for pushing/pulling air through a heater core - unless maybe those $100 for-Toyota cores that are 1" thick or so have dramatically less air resistance. I'm
guessing that they're aluminum anyway (aluminum block engines and radiators, why introduce copper/brass even if you
do have anti-corrosion additives in your antifreeze?). The engines probably do have bronze in 'em - but probably not where water touches.