Originally Posted by
83scamp
Probably the same problem you get when you remove the thermostat from an engine... If the water is moving too fast, it can't pick up enough of the heat from its surroundings. It's a basic law of thermodynamics. IF the fluid isn't in contact with the surface long enough, it can't transfer the heat energy. You may have had too much pump... That's not saying there wasn't efficiency issues with the intercooler...
That's why I always cringe when I see somebody recommend removing a thermostat. If you are having cooling issues, removing the T-stat is the worst thing you can do, unless it's just flat out stuck closed, them something is better than nothing...