2015 SUBARU WRX STI - Cooling Upgrade Part 1: Power Steering

2015 SUBARU WRX STI - Cooling Upgrade Part 1: Power Steering - OCTurboJoe

Рет қаралды 5,826

6 жыл бұрын

Been a long minute since my last upload but in this two part series, I first attack the power steering with a cooling upgrade to prevent the dreaded power steering rack failures of '08 to present STIs. Thanks to Hayden Automotive/SMP for sponsoring the cooler.
After replacing the rack & pinion and installing the cooler, the steering feedback has been smooth, solid, and much more quiet. I also added Whiteline's steering rack bushings. Radiant heat could be felt from the heat exchanger so it is definitely doing it's job ripping heat away from the system.
Part 2 will be coming soon, where I will be building an engine oil cooler kit from scratch and installing it.
Stay tuned!!
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Follow me on Instagram @joe_art15an
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Hayden Automotive Rapid Cool HD Cooler:
www.summitracing.com/parts/hd...

Пікірлер: 67

@octurbojoe 6 жыл бұрын

You got a leaky rack and pinion that you have to replace? Add a cooler before putting it back together.

@Marticus518 Жыл бұрын

man thanks for this video, it was exactly what I was looking for! I've been tracking my STI for little over a year now and I've noticed that heat management i critical. I'm 100% doing this mod soon!

@miriamvivo4279 5 жыл бұрын

Piri hern. Update cardone psp failed lasted 14 months . Installed oem psp that I rebuild no problems so far called CARID . No problema will ship back for new cardone psp replacement. They are sending me shipping tag. Will add a psp cooler.nice mount location

@octurbojoe 5 жыл бұрын

The cooler will help with longevity. Just make sure you replace the fluid once in a while.

@joelgonzalez4267 6 жыл бұрын

Oo yea I have 275/40R18 on my sti Nd my steering is horrible I need this ASAP great video

@octurbojoe 6 жыл бұрын

Joel Gonzalez Yeah larger wheels and tires will definitely rape the power steering system.

@pboi302 6 жыл бұрын

Yes, your back!

@skepticalskeksis221 6 жыл бұрын

Welcome back!

@tim83h 6 жыл бұрын

Good to see you back mate! 👍🏻

@octurbojoe 6 жыл бұрын

tim83h Yeah it is, thanks!!

@WhiteWingSTI 6 жыл бұрын

Wow! A new video 🤙🏼

@octurbojoe 6 жыл бұрын

White Wing STI Yep, newbie here.

@markemmanuelmedina6103 6 жыл бұрын

Bought perrin aos because of turbo joe lol!

@miriamvivo4279 5 жыл бұрын

Subaru psp sys has cooling issues

@Phil-D83 6 жыл бұрын

Add a cardone inline filter as well. Probably use amsoil atf or ps fluid

@octurbojoe 6 жыл бұрын

philip dias Thanks for the tip. I'll consider it.

@Phil-D83 6 жыл бұрын

If your really nuts, derale makes a remote inline filter using a screw on filter. Huge fluid level and filration increase. Have one on my Toyotas transmission.

@octurbojoe 6 жыл бұрын

philip dias That's awesome. I'll give it a look. Thanks again!!

@denzilhitaua7739 4 жыл бұрын

Bro you are so on the money with the cooling of automotive oils, I’m curious are you doing the transmission and diff aswel? If so I’ll subscribe!!

@Thaib0xer69 6 жыл бұрын

Joe, really like your videos and your thought processes for the mods you incorporate into your STI. I had my steering rack replaced by Servco when I hit 40K miles. I'm at 58K (+18k) now and I can hear the "squealing" noises at full rotation left/right :( I concur with you, not sure why Subaru hasn't had a warranty fix for this endemic steering rack failure.

@octurbojoe 6 жыл бұрын

Alexander Pura I'm telling you, the heat struggle is real on this car. Not sure if Subaru's power steering vendor (Showa) has lowered their quality in rack and pinion internals but excessive heat degrades the fluid and warps seals. When that happens, contaminants can get inside the seal surface and allow air in. Air displaces the fluid and that's where leaks come from. I guess it's easier for Subaru to make money for the amount of racks they can get at the dealer vs fixing it. In my opinion, for 2015, they wasted money with that stupid sound tube when they could've added a decent two-pass cooler at minimum.

@Thaib0xer69 6 жыл бұрын

OCTurboJoe I live in an apartment complex and I can't do extensive work on my STI in the parking garage. I'd like to replace my steering rack with the '15 or higher rack and do your cooler mod at the same time. I'll have to wait till we move to another place, or the mainland.

@octurbojoe 6 жыл бұрын

Alexander Pura While you're down there, replace the stock steering rack bushings with Whiteline ones. It feels much more engaging.

@Mrlolibre 6 жыл бұрын

Nice to see you back! How many miles you have on the sti now?

@octurbojoe 6 жыл бұрын

Mrlolibre Thanks. I currently have 36K miles on her. I can't go very far off this island, lol.

@joelgonzalez4267 6 жыл бұрын

I have the same problem with my sti and its power steering leaking this looks like ay great solution but what if I wanna put ay fmic

@octurbojoe 6 жыл бұрын

That's a decision you have make for yourself. First thing is how big of a frount mount core you plan to run. If it doesn't take up space in the upper grill area, you should be fine.

@joelgonzalez4267 6 жыл бұрын

Yea and good advice thanks keep up the videos well all appropriate them

@octurbojoe 6 жыл бұрын

Joel Gonzalez Thanks for watching!!

@trnql_noir Жыл бұрын

When you had this set up, was over-cooling the power steering fluid ever a concern?

@octurbojoe Жыл бұрын

Never

@eddietapia3815 6 жыл бұрын

Ever since I added my p/s cooler, my power steering pump failed. I have the Mooresport AN adapter fitting on my p/s pump, AN lines and a Earls cooler. No leaks anywhere, just a straight pump failure. Any ideas as to why? (I’ve fixed it since then, but I just wanted some feedback.) Awesome work on the vid though.

@octurbojoe 6 жыл бұрын

Eddie Tapia Perhaps it was already failing prior to installing the cooler, or air was still present in the system due to not bleeding it completely after adding the p/s cooler, which can also cause pump failure.

@kreduus 5 жыл бұрын

Do you have a video to remove the fluid pump? I've been having to re-add more and more fluid. Went underneath and it looks like on the pump someone over tightened a bolt likely because of a bad gasket. Wasnt sure how difficult it was to remove the pump as you did and install some clean gaskets.

@octurbojoe 5 жыл бұрын

I didn't have to remove the pump for this procedure. I only messed with the return side and reservoir. The pump is pretty straightforward and simple. Just make sure to drain the entire system and replace all seals and gaskets, including the low pressure line o-ring on top. Air can find its way in the system if the o-ring is damaged.

@kreduus 5 жыл бұрын

@@octurbojoe Ok so I was mistaken. What I meant was the actual steering rack. There is a popular video online with a 2011 rack removal and not sure if it is similar or not.

@octurbojoe 5 жыл бұрын

@@kreduus That's the lazy way of doing it.

@kreduus 5 жыл бұрын

@@octurbojoe I see. Wasnt sure if you had a DIY or not. Found a legitimate company close by that rebuilds steering products and figured if I could remove it myself I can save a butt load of money. Just wasnt sure how different it would be removing one from a 2015 STI.

@JotaJotaSTI 6 жыл бұрын

Great video! I have a 2017 STI on my channel come check it out when you get a chance. I subbed to your channel look forward to more content!

@octurbojoe 6 жыл бұрын

Me, Myself & STI Right on. Thank you!!

@JotaJotaSTI 6 жыл бұрын

OCTurboJoe 👍🏼

@MrJhall1988 4 жыл бұрын

What size fittings did you use??? Can you list the part numbers for the fittings??

@octurbojoe 4 жыл бұрын

They are all -6AN push lock fittings with 3/8" ID power steering hoses. For the oil cooler inlet and outlet, you need two -10AN ORB male to -6AN male adapters in order to run -6AN hose ends off of it. I don't have part numbers but this is the important information you need to know as there are many brands of fittings to choose from.

@MrJhall1988 4 жыл бұрын

@@octurbojoe thank u man. Jus the info i needed. Im gonna do the same thing for my audi. The stock ps cooler sucks. In the summer time after some spirited driving my ps fluid gets really hot. Practically boiling.

@octurbojoe 4 жыл бұрын

@@MrJhall1988 Good luck and have fun building it. Your ps pump and rack will thank you.

@MrJhall1988 4 жыл бұрын

@@octurbojoe thank u and i kno they will... nothing like long lasting parts

@MrJhall1988 4 жыл бұрын

@@octurbojoe if ur on Instagram. Let me get ur ig name. My instagram is @euro_gyoza

@sunnyhaibin 6 жыл бұрын

Do you have a link to the cooler and hardware used to install the power steering cooler? Mine squeals from time to time after it's warmed up, but nothing during cold starts. How do I know if it's the power steering rack going out? It has about 23k miles and with an amount of mods right now.

@octurbojoe 6 жыл бұрын

sunnyhaibin It's in the description below.

@sunnyhaibin 6 жыл бұрын

The link you have in the description does not work :(

@igorushka 4 жыл бұрын

How are all the coolers are doing?, it has been a while since install.

@octurbojoe 4 жыл бұрын

Still cooling. The oil cooler had two revisions and a relocation. The power steering fluid was flushed once since. Everything is all good.

@abdelrahmanalqasmy4733 5 жыл бұрын

Any long term feedback regarding the steering oil cooler, I am planning to do it also I had similar failure in the rack after tracking the car for 3 laps only :D

@octurbojoe 5 жыл бұрын

Still chugging strong. No leaks, noises, or failures from the power steering system. I am about to flush it in a couple months just to keep the fluid fresh. I may add an inline filter to catch anything that may contaminate the system components but overall, it's running like a champ.

@abdelrahmanalqasmy4733 5 жыл бұрын

that's great I will surely put this on my mod list because I was really annoyed when I couldn't finish the track day because of this fragile power steering rack. Appreciate your reply and looking forward to see more videos on such reliability improvements to the STi @@octurbojoe

@octurbojoe 5 жыл бұрын

@@abdelrahmanalqasmy4733 Right on, thank you!!

@gary6847 6 жыл бұрын

Post more!

@octurbojoe 6 жыл бұрын

garrett It's comin...

@pirihern9329 6 жыл бұрын

2006 sti power steering pump leak ordered cardone new swap out rebuild oem looking for rebuild kit member of fcscc saludos

@miriamvivo4279 5 жыл бұрын

Update

@abdelrahmanalqasmy4733 4 жыл бұрын

Did that return line pour a lot of oil when you removed it ? apart from the oil in the reservoir of course.

@octurbojoe 4 жыл бұрын

No because my rack had already leaked most of the fluid out of the reservoir. Lol

@abdelrahmanalqasmy4733 4 жыл бұрын

@@octurbojoe hahahahahahaha I forgot that you already removed the rack, I am trying to fix it now so I don't get the same failure at the track as last year I blow the seals. I wanted to anticipate how much oil it will through at me during the install.

@octurbojoe 4 жыл бұрын

@@abdelrahmanalqasmy4733 The return line from the rack shouldn't be much. I'd assume the feed line from the reservoir to the pump itself will leak everything out, as well as the lines down at the bottom where the valve housing is.

@abdelrahmanalqasmy4733 4 жыл бұрын

@@octurbojoe Managed to do it yesterday without draining the reservoir since my oil is new there was no point of draining the whole thing. The return line barley dripped some oil. The difficultly was working around AOS hoses (Killer B). How is this AOS doing with you. It passes fair amount of oil in my car.

@octurbojoe 4 жыл бұрын

@@abdelrahmanalqasmy4733 Yes, the return line isnt always filled with fluid. You can route the lines in any direction you'd like, I just chose the shortest path I could take without blocking any important parts of the engine. The Killer B AOS is something. It was fine on my stock turbo. But with the 20G, it bypasses more oil than I'd like. So I added a Radium catch between the top outlet and the turbo inlet. Lo and behold, the catch can caught about a beer capful of oil within a thousand miles. I opened up the Killer B AOS to find that it isn't efficient in separating oil. There are others that also have issues with it bypassing. So now I'm looking at other options. I'll keep everyone posted.