Reply to "Jtaphorn Cooling system modification"

The misconception is that it takes time for heat to transfer from coolant to the air when passing through a radiator. It does, in fact, take a fraction of a second. Mind you, the biggest reason to increase coolant flow in a Pantera is to reduce cavitation. Even in a perfectly sealed cooling system, cavitation creates air bubbles. Hot spots create air bubbles too. The single biggest improvement a Pantera owner can make would be switching to a single pass rad. It doesn’t really matter whether the inlet is at the top or bottom right but the outlet would be at the opposite corner. The most conventional configuration would be the inlet at the top right and the outlet at the bottom left, just like 99% of production cars. I had mine built by Ron Davis and they were in 100% agreement that all Pantera rads should be single pass. I asked, if that’s the case, why they make double pass rads at all? Their response was, because that’s what Pantera owners want. An added benefit of a single pass rad is, with the inlet/outlet at the corners, 14” fans fit easily. Bigger fans are good to have if you relocate the A/C condenser to the front. Most Pantera’s with lay forward rads and sucker fans use 12” fans.