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Old 09-05-2018, 09:37 AM   #1 (permalink)
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Hydro assist steering coolers

I've searched my brains off and can't seem to find much especially on jeeps with hydro assist and what cooler they are running. I'm gonna be running a very sweet AGR pump with WTO ram pushing 40s on superdutys. The only think I lack is a steering cooler and Im just unsure of what to get. Seen everything from the heat sink style to to tube and fin and even plate but everyone seems to have some kind of problems with all certain types. I figured I would put this into the jeep specific are as well for mounting pictures and what works best for our type of rigs. My thinking is running old school tube and fin with a fan..........Keep in mind I live in one of the hottest regions of the USA ..........absolute hell. Hopefully can get some good tech here.
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Old 09-05-2018, 11:05 AM   #2 (permalink)
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I am running a simple tube and finned U shaped cooler, im only pushing a stock box, stock pump and tapped box. I was careful to match the lines all to the same size (3/8) haven't experienced any issues as of yet. For mounting I have it mounted inside the grill with some rubber isolators and zip ties.
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Old 09-05-2018, 03:07 PM   #3 (permalink)
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Run a heat sync

Howes reference guide. What's nice about this flow chart is you can visualize each segment of hose and how it applies to any application. I have a bunch of prints so when I need to build a system and buy fittings hose types I can easily check them off.

Hose selection: I prefer the astectics of black but it's off by about 50 degrees at the high end of heat requirements from blue. As much as I hate push lock stuff the ID is better for flow on the non pressurized side and select fittings have 3 barbs vs 2. The aeroquip teflon hose Im running from the output of the pump to the hydroboost to steering box is really nice. Extremely high temp rating but cannot be kinked at all.

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Old 09-15-2018, 03:46 PM   #4 (permalink)
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I ran a tube and fin one with no issues with assist or full hydro. IF you go heat sink, I have a brand new one Ill sell ya. I dont need it.
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Old 09-15-2018, 03:52 PM   #5 (permalink)
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I run my Hydro boost and Hydro assist through a tube and fin from PSC, No issues even in the AZ heat.
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Old 09-15-2018, 04:49 PM   #6 (permalink)
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I can't tell you if it works or not since I'm still building, but here's my set-up running an AGR/Steerco CB pump, new design Steerco reservoir and a Russell 15" heat sink cooler. Line from reservoir to pump is -10 Fragola push lock (rated for vacuum), lines from box to cooler and back to reservoir are -8 Fragola push lock. The cooler is held to the grill brace with hose clamps. I used a carbide burr in a die grinder to put some semi-circular slots in the backside cooler fins that are the same angle as the grill brace so there is enough room to fit the cooler in front of the grill brace and it won't slide around.

You want to keep the cooler as low as possible, definitely below the reservoir so it is the highest point in the system. I compromised on mine as I didn't want it blocked by the winch, but it is still about 4" below the reservoir. The other cooler in the grill is one of my transmission coolers.

The return line from the box has a 90 that points towards the passenger side and runs along the bottom of the grill and then up to the passenger side of the cooler, which has a -8AN sweep 90 pointed straight down. The driver side of the cooler has another 90 pointed straight down and the hose exits the slotted area in the grill on the driver side and back to the reservoir.


I don't have any pictures of the cooler hose routing handy, but it's pretty self-explanatory. Here's a picture of the cooler mount, reservoir mount and feedline to pump.







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Old 09-15-2018, 07:20 PM   #7 (permalink)
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Quote:
Originally Posted by Big4x4Rides View Post
I ran a tube and fin one with no issues with assist or full hydro. IF you go heat sink, I have a brand new one Ill sell ya. I dont need it.
Go figure i just bought a heat sink style today....

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Old 09-17-2018, 06:00 AM   #8 (permalink)
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dibs on the cooler
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