Anyone with a PSC system.
JK Enthusiast
Joined: Mar 2009
Posts: 328
Likes: 0
From: Twin Falls Idaho
Mike, when I PM'd you back I failed to mention that, NO- I did not cut into any steel lines. Unfortunately, I did my cooler install at home after Offroad Evolution did my ram assist install, so I can't say for certain what the routing of the factory lines looked like prior to the ram assist install. It does not look like EVO added any new lines, but only used the existing factory lines and did not modify any of the hardline/steel tubing portions. Also, EVO does mount the reservoir in a different spot than the kit instructs you too....I think. I have attached the only photo I have of the location of my fluid reservoir, which is mounted to a metal shaft that is welded to a cross brace below and behind the radiator. The top of the shaft has a flat, crescent shaped plate at the top and the reservoir mounting bracket bolts to that. I am not saying you will do this but....I started to rush the job, so when tightening the aluminum reservoir bracket to/around the reservoir itself, take your time, go slow and tighten each little Allen bolt evenly, one side just a bit then the other side, etc. I over tightened one side and stripped out the female threads on the bracket, PSC got another $13 of mine for a replacement. But the thing showed up in three days and I am wiser. I added loc-tite on the second attempt so I did not feel the need to gorilla grip the damn thing. PM me again if you need anymore advice on what not to do, I can definitely help there. But PM me if you need anything else too.
JK Super Freak
Joined: Sep 2009
Posts: 1,527
Likes: 0
From: USA
The reservoir looks good there. I may have to fab a bracket to put mine there. What does it bolt to? To the OP, I plan on pulling the return line from the steering gear and cutting it just before it transitions from rubber to metal and then install a double male barb allowing me to use the rest of the psc and cooler stuff to finish the install. I can elaborate if you need me to.
I am unfortunately living out of a hotel in another state on a work trip, so I am unable to take a better photo for you and the OP, Michigan Mike. The "post" or "tube" the reservoir is mounted to is welded to a cross brace that runs left to right, below and behind the radiator. There is plenty of room for it, since it sits where the rest of the V8 should sit. If you can wait until next Monday, I will get some better photos and post them in this thread.
Thread Starter
JK Enthusiast
Joined: May 2007
Posts: 241
Likes: 0
From: Florida Space Coast...but I get around
Wow what a difference!!
About a month ago I installed the SK-255 on my '07 JK. The system works perfectly (bled correctly...no spitting or leaks) but the reservoir seems kinda hot. I bought a non-contact thermometer yesterday to gather temp. data. Here's what I got.
Ambient temp: 68*F
Cylinder temp: 110*F
Top radiator hose: 185*F
Reservoir outside: 189*F
Fluid in reservoir: 215*F
Pump at high press. output: 220*F
This was after @15 miles of ON ROAD driving (never exceeded 55MPH). Anyone with a PSC system running a cooler? What type? Mfg.(Derale, B&M, Flex-a-Lite, or)? Where'd ya mount it?
Thanks in advance!
Ambient temp: 68*F
Cylinder temp: 110*F
Top radiator hose: 185*F
Reservoir outside: 189*F
Fluid in reservoir: 215*F
Pump at high press. output: 220*F
This was after @15 miles of ON ROAD driving (never exceeded 55MPH). Anyone with a PSC system running a cooler? What type? Mfg.(Derale, B&M, Flex-a-Lite, or)? Where'd ya mount it?
Thanks in advance!
Ambient temp: 66*F
Cylinder temp: 82*F
Top radiator hose: 184*F
Reservoir outside: 161*F
Fluid in reservoir: 163*F
Pump at high press. output: 182*F
Derale 13253 cooler: 133*F
I duplicated the drive done in the original post.
These temps are measured with a $25 HF laser thermometer at about 6 inches distance. Probably accurate to @ +/- 4% or so. Still the relative temp difference is very impressive, particularly the pump output difference of @ 38*F. I'll continue (later) to figure how to post the install pic's. Thanks all for the PM's and encouraging words.
JK Super Freak
Joined: Sep 2009
Posts: 1,527
Likes: 0
From: USA
Originally Posted by Michigan Mike
OK I finished the Derale cooler install today & here's the temp data ( I have pic's of the entire installation BUT cannot remember how to post them (they're all on photobucket but it's tooooo nice a day to piss around on the computer)).
Ambient temp: 66*F
Cylinder temp: 82*F
Top radiator hose: 184*F
Reservoir outside: 161*F
Fluid in reservoir: 163*F
Pump at high press. output: 182*F
Derale 13253 cooler: 133*F
I duplicated the drive done in the original post.
These temps are measured with a $25 HF laser thermometer at about 6 inches distance. Probably accurate to @ +/- 4% or so. Still the relative temp difference is very impressive, particularly the pump output difference of @ 38*F. I'll continue (later) to figure how to post the install pic's. Thanks all for the PM's and encouraging words.
JK Super Freak
Joined: Sep 2009
Posts: 1,527
Likes: 0
From: USA
As promised, here are a few shots of the location and technique Offroad Evolution used to mount my PSC ram assist steering. Reservoir sits centerline of the engine bay, directly between radiator and front of engine block. The shop used a short, vertical length of tubing (approx 1" dia.) that is welded to the round frame crossmember directly below (and slightly behind radiator). The fluid reservoir bracket mounts to a flange at the top of this vertical tubing.
Pros- Easy to work on, easy to check and add fluid, location makes it easy to plumb a power steering fluid cooler to.
Cons- those considering a supercharger, such as a RIPP set up, will have to relocate the reservoir to the firewall location that most other people tend to use or maybe just further to the driver's side instead of centerline of the engine.
Attachment 123327 Attachment 123328 Attachment 123329 Attachment 123330 Attachment 123331
Pros- Easy to work on, easy to check and add fluid, location makes it easy to plumb a power steering fluid cooler to.
Cons- those considering a supercharger, such as a RIPP set up, will have to relocate the reservoir to the firewall location that most other people tend to use or maybe just further to the driver's side instead of centerline of the engine.
Attachment 123327 Attachment 123328 Attachment 123329 Attachment 123330 Attachment 123331
Last edited by GCM 2; Jan 31, 2011 at 07:47 PM.
JK Enthusiast
Joined: Mar 2009
Posts: 328
Likes: 0
From: Twin Falls Idaho
As promised, here are a few shots of the location and technique Offroad Evolution used to mount my PSC ram assist steering. Reservoir sits centerline of the engine bay, directly between radiator and front of engine block. The shop used a short, vertical length of tubing (approx 1" dia.) that is welded to the round frame crossmember directly below (and slightly behind radiator). The fluid reservoir bracket mounts to a flange at the top of this vertical tubing.
Pros- Easy to work on, easy to check and add fluid, location makes it easy to plumb a power steering fluid cooler to.
Cons- those considering a supercharger, such as a RIPP set up, will have to relocate the reservoir to the firewall location that most other people tend to use or maybe just further to the driver's side instead of centerline of the engine.
Attachment 123327 Attachment 123328 Attachment 123329 Attachment 123330 Attachment 123331
Pros- Easy to work on, easy to check and add fluid, location makes it easy to plumb a power steering fluid cooler to.
Cons- those considering a supercharger, such as a RIPP set up, will have to relocate the reservoir to the firewall location that most other people tend to use or maybe just further to the driver's side instead of centerline of the engine.
Attachment 123327 Attachment 123328 Attachment 123329 Attachment 123330 Attachment 123331