Sea Strainer Water Pressure
#21
Banned
Yep multipliers for fuel / pulse width of the injectors and coolant temp sensor readings plays into that as well
#22
I would not use a PRV to supply a cooler as it just will not flow the needed volume. What kind of lowers do you have? If you have IMCO lowers they will supply way more flow and pressure than you need. Install the PRV in the strainer or T into one of the output hoses, run a check ball just off the strainer to the chiller, this will prevent the water pump from sucking though the chiller.
#23
Registered
Thread Starter
I would not use a PRV to supply a cooler as it just will not flow the needed volume. What kind of lowers do you have? If you have IMCO lowers they will supply way more flow and pressure than you need. Install the PRV in the strainer or T into one of the output hoses, run a check ball just off the strainer to the chiller, this will prevent the water pump from sucking though the chiller.
#24
You might want to rethink that setup, PRV is just what it says. The way you are thinking of plumbing only gives two outlets from the strainer. If you actually look at the valve internals they are not very large compared to the input size of the chillers. If you plumb it up as a true PRV you would have three possible outlets from the strainer, which may be the only way to relieve enough pressure from the system. With the PRV feeding the chiller, there may not be enough pressure at low speed to open the valve even though you could be boosted at that point. My $.02
#25
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Thread Starter
You might want to rethink that setup, PRV is just what it says. The way you are thinking of plumbing only gives two outlets from the strainer. If you actually look at the valve internals they are not very large compared to the input size of the chillers. If you plumb it up as a true PRV you would have three possible outlets from the strainer, which may be the only way to relieve enough pressure from the system. With the PRV feeding the chiller, there may not be enough pressure at low speed to open the valve even though you could be boosted at that point. My $.02
#26
I see two problems with that configuration, it limits flow to the chiller and leaves no system pressure relief, the pressure relief is a concern due to the large intake slot in the SCX4. That PRV cannot supply two 12 lines to capacity either, if you look at the internals they are not even 3/4".
#27
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Thread Starter
This is the PRV I’m referring to, just so we’re on the same page
#28
Registered
Thread Starter
I thought 5gpm at 10psi was pretty good flow, 30gpm at 15psi. I think a typical residential hose bib flow is about 5gpm. One of the reasons I’m doing this is because the intercooler was getting too much water with how efficient these Whipple chillers are.
Last edited by IGetWet; 02-26-2019 at 11:54 AM.
#30
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Thread Starter
Finally got to test this out this past weekend. Looks like there’s two solid streams of water flowing out of the dumps at about 55-60mph, or about 4200rpm with this 3 blade, but once it opens looks like it stays open to about 3200rpm. With a 4 or 5 blade slip will be less, so lower rpm at the same speeds, so the water pump will be pulling less water, meaning better flow at lower rpm. I did modify the prv. Removed the spring, replaced with a very light spring which basically turns this prv into a check valve. So as soon as there’s a very small amount of pressure in the strainer the intercooler starts getting water. I was very happy when I saw the water start flowing.