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MILD THUNDER 05-02-2016 10:32 AM


Originally Posted by mike tkach (Post 4434562)
i have a question,if you feed the sea strainer with one -12 line and run two -12 lines from the strainer to the chiller are you moving twice the water because you have two lines feeding the chiller?

I'd say no. But, if you fed the strainer with one 1.25" hose from a pickup, and then two -12 lines to the intercooler, I would think you certainly can move twice the amount of water thru the system.

MILD THUNDER 05-02-2016 10:37 AM

Keith eickerts intercooler plumbing instructions. They say dual lines going in, and dual going out. Blower shop said same thing for their intercoolers.

http://www.keperf.com/Instructions/755-5005C.pdf

buck35 05-02-2016 10:40 AM

One thing to consider is how much water is being rammed up the pickup at 90 mph when at full boost. Has to be a chit ton, so reaching the 15 to 20 psi shouldn't be to difficult to accomplish.when you guy's dynoing?

SB 05-02-2016 10:51 AM


Originally Posted by turbom700 (Post 4434546)
You can move water to fast and not give it a chance to cool the alum plates in the cooler.

This has been debunked with an infinite cooling source.

ICDEDPPL 05-02-2016 11:07 AM

Told you you'd regret posting this

SB 05-02-2016 11:10 AM


Originally Posted by ICDEDPPL (Post 4434590)
Told you you'd regret posting this

I think it's a good subect as I don't believe I've seen any other(s) talk about it...other than how to install one or check psi or etc.

MILD THUNDER 05-02-2016 11:11 AM

My aeroquip catalog, has a chart for line size.

It basically shows that a -12 line, with a velocity of 10FT per second, can flow about 10 gallons per minute. A 1.25" line, with 10ft per second of velocity, can flow around 35 gallons per minute. Over 3 times the amount of water, that a -12 can flow. Now, to get that -12 line, flowing 35 gallons per minute, the line velocity would need to be increased to over 40ft per second, to move the same amount of water. How would we get that? Make the pickup deeper to get a better ramming effect?

If I found that my core, can move say, 30 gallons of water per minute with the two -12 dumps coming off the back, are you better off with a 1.25 water pickup, feeding a strainer, with two -12 lines, feeding the core, and possibly not having to mount the pickup nearly as deep to get the flow needed?


My gut would tell me that a larger feed source, would move more water, with the pickup not nearly as deep. My transom mounted pickups on my fountain, are nearly flush with the bottom, and feed a 1.25 hose, to a strainer, then to sea pump, feed my entire engine and exhaust, and have about 20psi of water pressure at wot. How can those pickups move that much water, and yet, some guys mount a single -12 pickup below the hull bottom, and can't move enough water to even feed an intercooler?

MILD THUNDER 05-02-2016 11:16 AM


Originally Posted by SB (Post 4434592)
I think it's a good subect as I don't believe I've seen any other(s) talk about it...other than how to install one or check psi or etc.

Same here. I have heard so many guys say how they plumb their intercoolers, but never really see anybody stick a psi gauge on the intercooler, let alone IAT temperatures.

I don't wanna look over the side of the boat while underway, and just say "looks like enough water coming thru for me".

You can plumb the system identical to a buddy, and have a vastly different water flow, based on pickup style, pickup depth, hull style, and so on. The psi gauge is imo, what you need to look at to see whats going on.

F-2 Speedy 05-02-2016 11:24 AM

Can I ax a question.................thanks, are there different types of water pressure gauges, meaning for different applications, blower or N/A

SB 05-02-2016 11:29 AM


Originally Posted by MILD THUNDER (Post 4434593)

My gut would tell me that a larger feed source, would move more water, with the pickup not nearly as deep. My transom mounted pickups on my fountain, are nearly flush with the bottom, and feed a 1.25 hose, to a strainer, then to sea pump, feed my entire engine and exhaust, and have about 20psi of water pressure at wot. How can those pickups move that much water, and yet, some guys mount a single -12 pickup below the hull bottom, and can't move enough water to even feed an intercooler?

Sea pump (edit in: vs no sea pump) , I believe is the answer to that.


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