Trying to figure out hwo to plumb 2 stage open cooled system
12-18-2017 | 10:40 AM
#1
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Trying to figure out hwo to plumb 2 stage open cooled system
Looking at the original Merc 502 cooling system routing, trying to figure out how I should plumb the supercharged LS motors Im putting in. Have a two stage seawater pump for each engine, one stage for motor one stage for supercharger heat exchanger.
First Im pretty sure Ill need a second water pickup for the extra stage, I dont think one will supply it. On Donzi 33ZX what would be the best way to accomplish that? Prob will change to these on the existing pickups Bravo Inner Transom Water Inlet - CP Performance or something like it if anyone knows of any so I can change to NPT to AN fittings. Ill likely run AN from there to pump, and then from pump use slip hose onto the original oil/power stteering cooler
The blower exchanger will go from pump to exchanger then prob dump overboard through the wet exhaust. https://bpi.ebasicpower.com/shop/chr...964_1179_1183& Thought about using something like this for the strainer? Thoughts?
The engines stage Im not sure what to do with just yet. The thermostat is on the inlet side of the pump, so if you were flushing/draining after use would it get air in and not circ anything until the thermostat opened? Have to come out of pump, and go to thermostat neck, when it leaves engine via the 1.25" neck then send that to the manifolds. Thinking of ditching the thermostat all together, but might never warm up like that. Was thinking of a way to allow some to bypass, or move the thermostat to the outlet side of the system or combination of both.
Anyone have any good ideas for the system? Figured out some metric adapters so I can run some anodes in the cooling system. Also thinking it might be alot for one whole stage to go through the blower exchanger, so maybe split that and run some of it into the 3/4" heater in fitting on the side of the pump or something that will allow immediate flow of some kind on start up, and once its warm then therm can open up and allow full flow. The other thing is when the therm was closed all that pressure head from engine side seat water pump prob has to go somewhere?
First Im pretty sure Ill need a second water pickup for the extra stage, I dont think one will supply it. On Donzi 33ZX what would be the best way to accomplish that? Prob will change to these on the existing pickups Bravo Inner Transom Water Inlet - CP Performance or something like it if anyone knows of any so I can change to NPT to AN fittings. Ill likely run AN from there to pump, and then from pump use slip hose onto the original oil/power stteering cooler
The blower exchanger will go from pump to exchanger then prob dump overboard through the wet exhaust. https://bpi.ebasicpower.com/shop/chr...964_1179_1183& Thought about using something like this for the strainer? Thoughts?
The engines stage Im not sure what to do with just yet. The thermostat is on the inlet side of the pump, so if you were flushing/draining after use would it get air in and not circ anything until the thermostat opened? Have to come out of pump, and go to thermostat neck, when it leaves engine via the 1.25" neck then send that to the manifolds. Thinking of ditching the thermostat all together, but might never warm up like that. Was thinking of a way to allow some to bypass, or move the thermostat to the outlet side of the system or combination of both.
Anyone have any good ideas for the system? Figured out some metric adapters so I can run some anodes in the cooling system. Also thinking it might be alot for one whole stage to go through the blower exchanger, so maybe split that and run some of it into the 3/4" heater in fitting on the side of the pump or something that will allow immediate flow of some kind on start up, and once its warm then therm can open up and allow full flow. The other thing is when the therm was closed all that pressure head from engine side seat water pump prob has to go somewhere?
12-31-2017 | 05:37 PM
#2
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From: Greenfield, Me.
Have a two stage seawater pump for each engine,
Yer explanation don't explain much,....
The graphic makes it even more confusin',....
You should have 1 raw water pump, 'n 1 circulatin' water pump for each motor,....
01-02-2018 | 05:40 PM
#3
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The diagram is a factory LS car coolant system example.
I will have a two stage seawater pump, one stage to the engine, and other stage for the blower heat exchanger circuit. Seawater will get fed to the exchanger to cool off the coolant coming out of the blower. Blower has a core inside, and water from that will be circulated to whatever exchanger I end up using with an electric pump
I will have a two stage seawater pump, one stage to the engine, and other stage for the blower heat exchanger circuit. Seawater will get fed to the exchanger to cool off the coolant coming out of the blower. Blower has a core inside, and water from that will be circulated to whatever exchanger I end up using with an electric pump
