Originally Posted by
waldig
Two pumps can be twice the failure rate, how do you monitor the improvement??? I did a lot of testing to get to the super cooler. THe photo shows how I gauged the flow rate with about 9 different pump and h/e designs. Gotta test test test and then check........Woody
https://www.crossfireforum.org/galle...hp/photo/21482
and the album:
https://www.crossfireforum.org/galle...y.php/cat/1070
PS two similar pumps would gain head pressure, but if the flow were not too restricted, the flow rate would not rise much. Id think two in parallel would increase the flow more, but Iam not tearing the lines out again for a whim, too much bumper to remove. Id rather be RC flying my strykers.
Honestly I have not opened a Bosch pump....IF it is an open impeller style if 1 fails the other will still get enough fluid flow to prevent "limp home mode". The Johnson would likely still have more flow than 2 Bosch. I have industrial magnetic flow meters here at work to measure actual flow rates but kind of hard to feed 120v ac or 24v dc to my moving car, let alone plumbing up to 150# flanges.
Parallel pumps have their own performance issues and in line nearly always has higher flow rates, that one is easy to state.