[Joshinator99]

Originally Posted by Patriot Motorsports USA

I am not sure going with a pump that moves the water faster or with more pressure will help. It is this reason I designed the system I did with large end tanks and not short welded sides, to help slow the water flow so it would reject more BTUs while in the main SCHX. I also made it stay there by using a bypass method which keeps the fluid in the one area and helps with removal of any air bubbles before it goes to the Driver's Side AuxHX and ultimately up to the SC.

The velocity of water molecules also increases the temperature by making those molecules move and become a gas, thus the more bubbles. In the world of HVAC, you are getting cooling by the slowing of a gas from one pressure to a lower one, thus that cools the air. Having the properly sized and flowpath HX makes this process happen and does so with greater efficiency and less air conversion.

It can help but depends on your setup. The more heat you’re trying to reject, the more flow you want. You also want enough turbulence so that the water “scrubs” the heat exchangers. That’s why I suggested taking temperature measurements as it’ll help us make that call. If you go too slow, you’re average water temperature throughout the brick will be too different and back cylinders could see a much warmer IATs vs the front where the coldest water is entering the brick.

Pressure is more of a concern when pushing multiple heat exchangers and a good bit of tubing, all in a row. I have 4 heat exchangers in a row, so that’s why I’m using the CWA150.