Quote
I dunno. If it were just me, I'd move the radiator and be done with it.

Gen 2's have an aluminum core radiator, and that's why they only have two rows. An aluminum core will dissipate heat more efficiently than a brass core one...far more efficiently. My feeling is that there's plenty of air flow through the radiator on these trucks with the pulley driven fan.

What I'd like to see would be a higher volume water pump. I've spoken to a couple of people that I trust on the issue and their opinion was that the flow rate isn't as good as it could be. How do I solve that?

John B.




Gen 2's are brass core still, they are taller than the old 3 row. The pulley driven fan doesn't flow well at low speeds and neither does the water pump. These trucks are High RPM machines engineered for racing and adapted for the streets, you?ll need to pick something to upgrade for low RPM high load driving. Your ideal driving RPM for the 3.5 is 3000, if you can maintain sub 5mph around 3k you won't need to upgrade the cooling system.

Otherwise upgrade your low RPM air flow with a electric fan. Or upgrade your low RPM water flow with a 55GPM water pump part number WP336S, or send an OEM pump to Flow Kooler and see if they can change the impeller on it for better flow.

1999 Montero SAS'd on Kings and stuff

1998 Montero trying to get a V8 Swapped