Ten Rules for Maximum Cooling

[Kern Dog]

Good points made there.
As a kid in the 70s and 80s, I remember seeing cars along the roadside with their hoods up, steam billowing up from the radiator.
Nowadays, I can't recall the last time I saw a car overheat.
The new tech that engines have now would be considered space age in 1975. Plastic intake manifolds? Variable length intake runners, Active exhaust with cutouts, variable cam timing, cylinder deactivation, direct injection....I remember when fuel injection seemed fancy.

 

[j-c-c-62]

and knock sensors, ethanol fuel sensors, ..........

 

[themechanic]

I have yet to see stats saying that a good factory belt driven fan underperforms electric fans in general. Of course it is dependent on engine rpm.... but do you even NEED 2000-2300 cfm at idle? Mechanical fans move slower at slower rpms, but they also have a helluva relative blade pitch for moving air.

I would love to see some empirical data someday. Until then, mark me down as a tractor fan believer.

That appears as if I said it. So, for the record, that quote came from Griffin Radiator.

 

[themechanic]

They didn't mention getting trapped air out of the system.
Electric cooling fans are more efficient freeing up power for the engine, but good electric fans are still expensive.
Many of the aftermarket dual electric fan and shroud modules are over $500
On the otherhand, I still run the old Mopar mechanical viscous clutch fan on the Charger

Prices on the short fan clutch and a fan are creeping up towards that price. Especially, if you're buying NOS or even a new Mopar licensed fan and clutch.

 

[themechanic]

Good points made there.
As a kid in the 70s and 80s, I remember seeing cars along the roadside with their hoods up, steam billowing up from the radiator.
Nowadays, I can't recall the last time I saw a car overheat.
The new tech that engines have now would be considered space age in 1975. Plastic intake manifolds? Variable length intake runners, Active exhaust with cutouts, variable cam timing, cylinder deactivation, direct injection....I remember when fuel injection seemed fancy.

And the gas stations had tap water or well water for the customer to top off their overheating radiator.

 

[padam]

Good points made there.
As a kid in the 70s and 80s, I remember seeing cars along the roadside with their hoods up, steam billowing up from the radiator.
Nowadays, I can't recall the last time I saw a car overheat.
The new tech that engines have now would be considered space age in 1975. Plastic intake manifolds? Variable length intake runners, Active exhaust with cutouts, variable cam timing, cylinder deactivation, direct injection....I remember when fuel injection seemed fancy.

Today they just drive them until they quit then gave them towed.