dual pass plumbing thoughts
#1
dual pass plumbing thoughts
im planning to do my dual pass and upgrade pump next weekend. i got looking at the plumbing and it apears with the dual pass they move the pump from the cold side (coolant going from heat exchanger to pump to manifold) to the hot side (coolant from manifold to pump to heat exchanger).
gm dual pass diagram
does anyone know why they do this??? i was racking my brain and cant come up with any logical reason for it. because of the design of my pump here is what im thinking of doing
that is basicly the same as the stock setup is with the pump on the cold side. the reason i want to do it this way is it will simplify the plumbing. i dont see any reason this wouldnt work.
any thoughts???
gm dual pass diagram
does anyone know why they do this??? i was racking my brain and cant come up with any logical reason for it. because of the design of my pump here is what im thinking of doing
that is basicly the same as the stock setup is with the pump on the cold side. the reason i want to do it this way is it will simplify the plumbing. i dont see any reason this wouldnt work.
any thoughts???
#3
with the design of the pump i chose to run it will make everything look a little cleaner if i do it the 2nd diagram. i didnt think it would make much of a difference were the pump is located, i just thought id make sure there isnt some huge reason that i dont know about for it changing.
#4
Senior Member
iTrader: (10)
Biggest problem with reversing the flow like that i've found is getting air trapped in the manifold. I prefer to have the out from the manifold going up, so any air will continue out into the hoses, rather than settle in the cores and reduce efficency.
Not really a big deal, make sure everything is plumbed well, no kinks in the hoses, and the pump is good, and you are fine.
Not really a big deal, make sure everything is plumbed well, no kinks in the hoses, and the pump is good, and you are fine.
#5
Senior Member
Biggest problem with reversing the flow like that i've found is getting air trapped in the manifold. I prefer to have the out from the manifold going up, so any air will continue out into the hoses, rather than settle in the cores and reduce efficency.
Not really a big deal, make sure everything is plumbed well, no kinks in the hoses, and the pump is good, and you are fine.
Not really a big deal, make sure everything is plumbed well, no kinks in the hoses, and the pump is good, and you are fine.
#7
Senior Member
iTrader: (10)
I'm saying, with the GM instructions you have or whatever they are, they show it coming down from the manifold to the pump. I would avoid that arrangement if possible, hot or cold side regardless, I'd have the in to the manifold coming from the bottom (where the pump is) and the out going higher than the cores to the reserve tank or whatever you use. Just my opinion.
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