I turned the pump on, pumped some water through onto the garage floor then turned the pump off and could easily suck water through the pump LPGSB. So me think that pump isnt of the type you describe. Worth a try. Tony

the "snow performance" pump is a Shurflo type pump that sounds like it has had the pressure switch removed, meaning they stall out at about 220 psi...you might not want to hold your motor on boost for more that a minute or so at a stretch

 

hmmm i wonder what has been done to the valves to cause it to pass water straight thru.

 

i install these sort of pumps for work every few months and have never hit one that passes water straight thru....i will have a look at the 'books of words' we have for them at work to see what it says

Edited September 23, 201213 yr by LPGsuperchargedBrumby