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What size cooler for power steering?

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Old 02-27-2017, 06:49 PM
  #16  
MAGK944
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Originally Posted by Mach 5
...I'm not ready to shell out $180 for a new cooler/line assembly. I also will confess that at the moment, I'm a little too lazy to remove the cooler and attempt any sort of "proper" repair...
Sorry but I'm not getting this, after you have done so much and wyit why would you not do it correctly. $180 is not expensive for something that will likely last 20 years and not detract from resale value as a bodged-up workaround job would. It doesn't take long to remove & replace.
Old 02-27-2017, 07:08 PM
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Originally Posted by V2Rocket
how about just cutting the crimped end of that hose off the cooler and then running a new piece of hose from the cooler to the reservoir, held by clamps (maybe fuel injection style clamps)?

not under any real pressure and it's clamped at the reservoir end anyways...
Originally Posted by MAGK944
Sorry but I'm not getting this, after you have done so much and wyit why would you not do it correctly. $180 is not expensive for something that will likely last 20 years and not detract from resale value as a bodged-up workaround job would. It doesn't take long to remove & replace.
Reread my original question. I was not referring to "correctness". I am concerned about functionality, based on the fact that several other owners, with cars significantly more modified than mine, posted in this thread, that they were able to successfully run their cars without the $180 cooler. I don't own my cars to maximize their resale value. I drive them. No offense is meant by this. It's just how I view ownership.

Also, I do think it is a bit of pain to remove the cooler, IMHO.

Roger
Old 02-27-2017, 07:10 PM
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V2Rocket
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if you remove the windshield washer bottle the PS cooler comes out much easier.
i would think you could get a small dremel-tool or the like in there to cut the ferrule off. but of course, better to just pull it out for more access.
Old 02-28-2017, 12:27 PM
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Interesting how many people are running without a PS cooler without a problem. I ran my track car (305x18 front tires) without a cooler, the fluid got way too hot for my liking. I'm going with a small radiator style cooler. Of course, proper air management (IN/OUT) is a must. Without good air flow, the best cooler will be ineffective.

Anyone used a 968 PS cooler on a 951?

I have been toying with the idea of using a Toyota MR2 electric PS pump. Anyone here is using an electric PS pump?
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Old 02-28-2017, 12:29 PM
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Can't really see the cooler being necessary for a street car...I don't think my Subaru even has one (but will double check )

Though if you are feeling frisky you can get a really sweet PS cooler off of 80s-90s Volvos (made by Setrab). On the Volvo they are mounted in front of all the radiators...

These have approx. 6mm ID flare fittings and 12 cooling rows. Dimensions are approximately 8.5L x 6T x 1.5W", and the mounting brackets extend out another few inches.

Shown in comparison to 951 engine oil cooler:

Old 02-28-2017, 12:47 PM
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I removed my leaky power steering cooler hose on my 968 yesterday. It only took a little over an hour. No big deal.
Old 02-28-2017, 01:30 PM
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The one on my AMG is very compact, bearly 3/4in deep. I'm sure there are many out there these days that could be used instead of the loopdi-doopdi 944 version.

Old 02-28-2017, 01:34 PM
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I've changed that line on all three of my cars - more than once on the track car.
It's easy to get to if you pull the right wheel and fender liner, which takes all of five minutes if the car is already in the air.
The need (or not) for a cooler probably depends on ambient temp where you run and track conditions. Plus, if you run AX instead of big tracks it's more likely you'll need one as the pump is being worked harder and the air flow to the rack and lines is less.
Old 02-28-2017, 02:46 PM
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Originally Posted by fast951
Interesting how many people are running without a PS cooler without a problem. I ran my track car (305x18 front tires) without a cooler, the fluid got way too hot for my liking. I'm going with a small radiator style cooler. Of course, proper air management (IN/OUT) is a must. Without good air flow, the best cooler will be ineffective.

Anyone used a 968 PS cooler on a 951?

I have been toying with the idea of using a Toyota MR2 electric PS pump. Anyone here is using an electric PS pump?
Yes, i am running an electric powered hydraulic power steering pump. You can mount any where you have room, I do not have any headlights so I mounted on the outside frame rail behind where the right headlight was.

The one I have requires 2 power wires, one to wake it up the other to make it run. Mine are switched individually but you could wire the wake up one to the ignition. I modified the coupling to the steel tubing to an a ansi fitting. Don't have a cooler on it tho that may not be a bad idea.
Old 02-28-2017, 03:07 PM
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Originally Posted by rlm328
Yes, i am running an electric powered hydraulic power steering pump. You can mount any where you have room, I do not have any headlights so I mounted on the outside frame rail behind where the right headlight was.

The one I have requires 2 power wires, one to wake it up the other to make it run. Mine are switched individually but you could wire the wake up one to the ignition. I modified the coupling to the steel tubing to an a ansi fitting. Don't have a cooler on it tho that may not be a bad idea.
How do you like the electric pump vs. Stock, any difference in feel?

Which pump are you using? The one I looked at has an input to alter the pressure. Overly complicated. I like the simpler 2 wires you mentioned.

Last edited by fast951; 02-28-2017 at 09:16 PM.
Old 02-28-2017, 08:07 PM
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I think you will find there are better options out there than the mr2. A lot of people use a pump from an Astra, it was used in a few other euro cars.
Old 02-28-2017, 09:21 PM
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Thanks Rod. The MR2 unit is not my favorite.
I don't think the Astra is available in the US.

Someone mentioned the Mini, will take a look.
Old 02-28-2017, 10:09 PM
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Realistically couldn't you use any 12-volt hydraulic/oil pump with sufficient flow/pressure output?
Old 02-28-2017, 10:22 PM
  #29  
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Originally Posted by fast951
Thanks Rod. The MR2 unit is not my favorite.
I don't think the Astra is available in the US.

Someone mentioned the Mini, will take a look.
Mini pump can be found new/reman $250-400
Dorman 599-950

http://www.oreillyauto.com/site/c/de...patibilityTab_

Alternatively looks like 2005+ Volvos had electric PS pumps.
http://www.ebay.com/itm/Volvo-V50-20...25.m3641.l6368
Old 03-01-2017, 12:55 AM
  #30  
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Originally Posted by fast951
How do you like the electric pump vs. Stock, any difference in feel?

Which pump are you using? The one I looked at has an input to alter the pressure. Overly complicated. I like the simpler 2 wires you mentioned.
I cannot tell any difference between the mechanical pump and the electric pump. Its been a couple of years since I got the pump, I will go see who the manufacturer is tomorrow and get back with you. I am not running any type of pressure regulation.

Pressure on one side with the return line at atmospheric.


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