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Old 06-15-2020, 12:56 AM   #1
kenliu84
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Default Variety of Cylinder 4 Cooling System Kits

So everyone is pretty much familiar now with the Cylinder 4 Chamber Cooling System by GetaDomTune.

There's a few other kits out there:

1) Ryder Racing - Cylinder 4 Cooling Mod Kit

First heard about them checking out my shop's Facebook - Precision Tuning Motorsports. Main differences is that the fitting is barb-type and it is made of T6061 aluminum just like the T fitting. What's cool about the T fitting is that there's an available 1/8 NPT port for a sensor installation; I haven't seen any pictures of this on the web.

2) Vems EJ Cooling Flow Balance Kit

First saw them on Import Image Racing's website. Vems' website provides some of their test data, including showing how temps at the back of each head were 2 degrees of eachother through the entire RPM range at full load. They informed me that their kit does not impact heater core function, which is something I've read either here or on IWSTI with the Dom kit. Biggest difference is that their fitting is '2-piece' - an AN fitting to the head and then a 45deg adapter to help guide it away from the steering linkage. The T fitting is made out of zinc-plated steel, manufactured in the US by a company that makes cooling and heater fittings for the auto industry.

3) Torque Solution Cylinder 4 Coolant Mod

Unsurprisingly, looks just like the Dom kit except it has 6061 aluminum fittings.

Pretty sure I'm going to roll with the Vems kit when the time comes.
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Last edited by kenliu84; 06-15-2020 at 08:47 AM.
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Old 06-15-2020, 02:51 AM   #2
viper_crazy
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Ryder Racing makes a pretty intriguing claim, for the Dom fan bois out there.....
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Old 06-15-2020, 08:52 AM   #3
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You can also go OEM, which is what I did. Buy a cooling outlet fitting from a jdm twin turbo legacy and get a t coupler and some rubber/silicone hose.

Theres a few posts about it in the other thread with the OEM Subaru part number needed for the cooling outlet fitting. It cost less than $50 to make a kit myself with the OEM fitting and I've been running it for a year now with no issues.
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Old 06-15-2020, 10:38 AM   #4
kenliu84
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Quote:
Originally Posted by GK1707 View Post
You can also go OEM, which is what I did. Buy a cooling outlet fitting from a jdm twin turbo legacy and get a t coupler and some rubber/silicone hose.

Theres a few posts about it in the other thread with the OEM Subaru part number needed for the cooling outlet fitting. It cost less than $50 to make a kit myself with the OEM fitting and I've been running it for a year now with no issues.
Yeah, I recall that so I just might. Point of the post was to just let folks know there's more out there than just the first kit that came out.

Where in Queens? I'm in LI now but I used to live in Forest Hills and Fresh Meadows.
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Old 06-15-2020, 11:56 AM   #5
viper_crazy
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Subaru part number 21170AA020.

You may have to order through https://partsouq.com/en/search/all?q=21170AA020 as my dealer could look it up but it was on indefinite back order.

Edit:
Just saw the site above, says not available at the time of this post.
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Old 06-15-2020, 01:16 PM   #6
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Quote:
Originally Posted by kenliu84 View Post
Yeah, I recall that so I just might. Point of the post was to just let folks know there's more out there than just the first kit that came out.

Where in Queens? I'm in LI now but I used to live in Forest Hills and Fresh Meadows.
Nicee, Im actually in Forest Hills coincidentally.

Quote:
Originally Posted by viper_crazy View Post
Subaru part number 21170AA020.

You may have to order through https://partsouq.com/en/search/all?q=21170AA020 as my dealer could look it up but it was on indefinite back order.

Edit:
Just saw the site above, says not available at the time of this post.
Yeah I ordered thru partsouq, and had ordered several to save on shipping. I ended up selling the other fittings here on the classifieds.
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Old 06-16-2020, 07:15 AM   #7
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I went with the Dom version. It sounded like he originally brought it to the market in the US, so I figured I'd throw my money at him lol. Closed deck block here, so I want to make sure the coolant isn't getting stagnant in cylinder 4.
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Old 06-16-2020, 11:37 AM   #8
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Originally Posted by BeastianSTI View Post
I went with the Dom version. It sounded like he originally brought it to the market in the US, so I figured I'd throw my money at him lol. Closed deck block here, so I want to make sure the coolant isn't getting stagnant in cylinder 4.
As did I. Dom has always been quite helpful to me as well. I wanted to support him.
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Old 06-16-2020, 01:30 PM   #9
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same here. Seems like he was the first to bring this product to the market. Plus its a way to support an american small business.
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Old 06-16-2020, 11:01 PM   #10
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Buy GDT kit, all other companies just jumped on the bandwagon of copying Domís kit and reselling the idea, as Dom pointed there is very special fitting size of the fitting for proper flow to much is bad to little now enough. Also supporting him money goes back in the community helping him design cool part for our cars.
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Old 06-16-2020, 11:22 PM   #11
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Wow, that didn't take long. Amazing how quickly companies will join in when they see the potential, even if some people claim it's snake oil. I hope Dom at least made back enough to justify his effort. I still plan on getting his version once the engine and ancillaries are in the car.












Now that I've posted, it's guaranteed someone will troll the thread. Fair warning.
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Old 06-16-2020, 11:29 PM   #12
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Originally Posted by 2slofouru View Post
Now that I've posted, it's guaranteed someone will troll the thread. Fair warning.
Too late. You beat everyone to it.
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Old 06-16-2020, 11:39 PM   #13
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Quote:
Originally Posted by igoiks View Post
Dom pointed there is very special fitting size of the fitting for proper flow to much is bad to little now enough.
Dom didn't think of anything original. Subaru had a plug long before Dom came along. How are we to know Dom didn't see Subaru's plug and proceeded to do his own thing? Does ID size make a difference? I haven't ever denied it. Will you blow up your engine if you don't buy Dom's kit? Doubtful. There's nothing "special" about it.

I will agree, however, on two points: 1) Dom was likely the first to market a kit and 2) others were quick to follow.

At the end of the day, it's all your own money. Spend where you like. That's all there is to it.
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Old 06-16-2020, 11:57 PM   #14
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While the differences are not much between each kit (just like with any other mod out there), the Torque Solutions one isn't even trying to hide it.

Kind of like deja vu with Gimmick Motorsports.
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Old 06-17-2020, 12:16 AM   #15
igoiks
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Default Variety of Cylinder 4 Cooling System Kits

Look you guys are right you can spend your money on whatever brand you like. And support whom ever you wish! However when someone been doing subarus for 20 years and understands there cars better than most with reputation of building tuning some of the most reliable Subarus . You can email the guy and consult with your issues he will help every time doubt torque solutions will. I was at the track the other day having issues Dom made a run adjusted tune no more issues went 11.0 later that day. Got $0 bill. So yeah ill support the guy and recommend his product

Last edited by igoiks; 06-17-2020 at 12:27 AM.
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Old 06-17-2020, 12:59 AM   #16
kenliu84
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Quote:
Originally Posted by igoiks View Post
Look you guys are right you can spend your money on whatever brand you like. And support whom ever you wish! However when someone been doing subarus for 20 years and understands there cars better than most with reputation of building tuning some of the most reliable Subarus . You can email the guy and consult with your issues he will help every time doubt torque solutions will. I was at the track the other day having issues Dom made a run adjusted tune no more issues went 11.0 later that day. Got $0 bill. So yeah ill support the guy and recommend his product
Wow, I would've sent him some money. That's awesome of him.
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Old 06-17-2020, 12:59 PM   #17
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Quote:
Originally Posted by kenliu84 View Post
Wow, I would've sent him some money. That's awesome of him.
Dom also made an informative video about his product and the before and after
"cylinder 4" temps with and without the mod.
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Old 06-17-2020, 01:15 PM   #18
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Quote:
Originally Posted by kenliu84 View Post
While the differences are not much between each kit (just like with any other mod out there), the Torque Solutions one isn't even trying to hide it.

Kind of like deja vu with Gimmick Motorsports.
I started to post the same yesterday, but nixed the reply. Torque Solutions' model is to replicate any new product and is really a disservice to any of the vendors actually putting thought and effort ($) into product development. They're not even much cheaper FFS.

Seriously, don't buy that crap...

I also bought the Dom kit, FWIW.
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Old 06-17-2020, 01:19 PM   #19
kenliu84
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Quote:
Originally Posted by danger1138 View Post
Dom also made an informative video about his product and the before and after
"cylinder 4" temps with and without the mod.
Yeah, I'm aware. It was great information.

Quote:
Originally Posted by Stretch18 View Post
I started to post the same yesterday, but nixed the reply. Torque Solutions' model is to replicate any new product and is really a disservice to any of the vendors actually putting thought and effort ($) into product development. They're not even much cheaper FFS.

Seriously, don't buy that crap...

I also bought the Dom kit, FWIW.
Yep. Not a well known company but Delta Motorwerks has like solid shifter bushings including a u-joint. Let's just say there are issues with that knockoff from Torque Solutions.
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Old 06-17-2020, 07:38 PM   #20
igoiks
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Yeah torque solution is just overpriced junk , ryder racing makes complete bs claim this kit donít really do anything for head gasket alao there is no epidemic of head gasket issues on turbo cars ringland on other hand fails ofter on cylinder 4, as of vems never heard of them up until now needless to say none of reputable good quality companies copying this kit .
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Old 06-18-2020, 12:00 AM   #21
kenliu84
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Quote:
Originally Posted by igoiks View Post
Yeah torque solution is just overpriced junk , ryder racing makes complete bs claim this kit donít really do anything for head gasket alao there is no epidemic of head gasket issues on turbo cars ringland on other hand fails ofter on cylinder 4, as of vems never heard of them up until now needless to say none of reputable good quality companies copying this kit .
Torque Solutions is Torque Solutions.

I'm not sure how 'BS' it is. It is well documented Subaru first did this cooling mod themselves. Considering Ryder Racing is in Australia which is close to Japan, I doubt their claim is that far fetched. I've been browsing their website and social media; they are coming up with some creative parts. We simply don't know much about what's going on outside of the US market. Check out their dual injector TGV Deletes that they are in first release. It's pretty cool.

Vems seems to be a tuning shop much like Dom's so it's not hard to see why they are not well known. Most of us only know of the shops in our local area. First I've heard of them as well as I said in my first post. Their website shows some of their test data using their kit which is more than what most competitors can say.

It's good to be in support of Dom but it really isn't necessary to make baseless claims of his competitors.
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Old 06-18-2020, 04:17 AM   #22
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I had wanted to give Dom my support as he's helped me make decisions on my build and I'm not even a client of his. A friend who had used him years ago here in the east had recommended I reach out to him and he never gave me any grief, just simply answered my questions. Unfortunately he's completely out of stock right now and couldn't give me an eta on the next batch so I ended up going with the Vems piece. I'll throw in a review of it when it arrives.
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Old 06-18-2020, 10:40 AM   #23
kenliu84
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Quote:
Originally Posted by snow_bound26 View Post
so I ended up going with the Vems piece. I'll throw in a review of it when it arrives.
That would be awesome. Thanks a lot.

Last edited by kenliu84; 06-18-2020 at 11:49 AM.
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Old 06-18-2020, 11:50 AM   #24
kenliu84
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Quote:
Originally Posted by snow_bound26 View Post
so I ended up going with the Vems piece. I'll throw in a review of it when it arrives.
Also, if you could please take pics of the size of the fitting as that seems to be a debate in regards to it's effectiveness.
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Old 06-18-2020, 05:14 PM   #25
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I purchased one of Dom's kits as well as the equivalent OEM part (two engines, you see). The OEM nipple has a much larger ID, but I have an in-line restrictor if the heater doesn't blow hot enough.
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