Originally Posted by
High Toned SOB
I also know earlier on someone said the system doesnt have pressure/suction. I dont see/understand how thats possible. We have the hotside that is pressurized by the water pump and increased by heat. Then we have the cooled side that is suction/pulled back into the water pump.
So since it is a loop, there has to be suction/pressure. Right?
You're thinking in terms of a water system where a pump is pulling water from one source and pushing it into another, causing pressure. The cooling system on a vehicle, however, has nearly equal pressure on both sides of the pump. It's a completely closed system, there is no pressure from the pump. The water pump provides flow, but no pressure. It's simply moving the water around inside the closed system. That's why the thermostat can close and cut off the flow of water without causing damage to the system: there is no pressure, only flow.
The 6.5L diesel cooling system is marginal at best. Adding a water to air heat exchanger for the turbo utilizing the existing engine coolant is a bad idea, I'm afraid. Not only will you put a larger heat load on the engine coolant (even with an added small radiator), but you might even cripple current coolant flow and end up with hot spots in the engine. Your efforts will be better utilized using a separate coolant system for the turbo.
Casey
1995 K1500 Tahoe 2 door, 6.5LTD, 4L80E, NP241, 3.42's, 285/75R16 BFG K02's; 1997 506 block; Kennedy OPS harness, gauges, Quick Heat plugs, and TD-Max chip; Dtech FSD on FSD Cooler; vacuum pump deleted, HX35 turbo, Turbo Master, 3.5" Kennedy exhaust, F code intake; dual t/stats, HO water pump, Champion radiator; Racor fuel filter