One thing that might help you out, reuse your OEM radiator cap and put the nice Mishimoto one on the expansion tank. I was having trouble getting the rad to burp out properly and was was running about 10 degrees hotter than I am now. Reuse that OEM radiator cap and put the new one on the expansion tank. Temps came down instantly. This recomendation came directly from MIshmoto customer service on 7/24/17. Surprised its not in here, maybe the cap design has changed in the last 5 years.
I installed this radiator according to the instructions with a few friends and some beers. Worked like a charm! Making the radiator burp/bleeding the lines is essential to your success. My car now runs cooler and smoother. Many props to everyone at Mishimoto!
in your site it says; "The provided Mishimoto radiator cap should replace the stock cap located on the expansion tank. The stock cap attached to the radiator should be installed on the Mishimoto Performance Aluminum Radiator. The Mishimoto radiator cap is a two way valve, while the stock radiator cap is a single valve. Due to the difference in construction, the Mishimoto cap cannot be used on the radiator. If the Mishimoto cap is fit on the radiator, overheating may occur." but in video it is on radiator, confused
The inlet and outlet of this radiator is 1.5" in diameter. We recommend using worm gear clamps to get the best seal for radiator hoses. So I would recommend finding a clamp that has a range of 1.5" - 2". :)
Please explain the radiator cap configuration to me.... I have a mishimoto radiator and a mishimoto expansion tank. Both came with 1.3 bar 2-way valves. I understand I am supposed to use the stock radiator cap on the radiator(1.1 bar), but that would leave a 1.3bar cap on the expansion tank. i thought the expansion tank should have a lower rated cap? am I wrong?
BTW: Subaru are very insistent that you use their coolant, (formulated by Castrol for Subaru) as it apparently protects the alloy and other metals better than standard anti-freeze etc. Of course their coolant is not cheap. They have the older dark green, and the new red super-coolant now (extended drain time). While not compatible together, you can run the super-coolant in the older WRX's apparently. (Source: Subaru parts dealer).
you know what the best part is when he fills the radiator with none subaru coolant!! iv noticed that pros like him know enough to not use subaru coolant but if you go on a forum and ask, everyone will tell you that your subaru will blow up if you use anything other then subaru coolant.
Thank god this video exists haha now i can actually do this my self without worrying if i missed something!! Thank you! ill be buying the radiator very soon!
Gona be buying this rad today, OEM took a poop on me, damn plastic, I would just buy a OEM replacement but I dont want to worry about it cracking again, 400hp needs to stay cool, cheers! Great vid, sold me on the product
Relied on the video to do the install.. all eventually worked out fine. Standard drain plug was almost inaccessible.I did have to shorten the lower hose somewhat. Have to be very careful with the top hose, as there is little clearance between fan and pulley when shortening, ensure clearance all round. The standard spring steel hose clamps are best gotten rid of in all locations too.
He does say in the video to fill up the cooling system with a 50/50 mixture of coolant and water. He also fills up the cooling system from the proper spot, since that is the highest point of the system, which will allow the system to bleed properly. He also mentions turning the heat on high to cycle the coolant and bleed any additional air from the system. Is there something you believe he didn't cover?
To much "commercial" input in this video.. hate it ! - but dont mind the radiator :D would it make sense to add one of these in a standard Subaru Impreza 2007 ( hawkeye ) 1.5R - because my old radiator needs replacement and I dont mind paying extra coins for a high quality part !!
When bleeding the air out how long does it normally take for all the bubbles to leave the lines ? Cuz i just installed a mishimoto radiator on my 07 sti and bled it for about 2-3 minutes ... Is that long enough ?? Please help
To Mishimoto,are you SURE you have to remove the splay tray on the bottom side of the engine bay? It wasn't mentioned in the other video I watched and I'm not sure why you'd have to remove it since the lower main rad hose is accessible without doing so. What exactly are the steps are parts to this that couldn't be done if the splay tray was still installed? I'm only asking cause its a pain to remove it. Thanks in advance.
JackstandJohnny you probably don't care anymore, but I think the main reason was so that they could drain it more easily. Also makes getting to the fan clips easier.
Lol thanks buddy. I've since done this all to my wrx and after getting in there myself I can see why they did it. Thanks for passing on that info to the next guy though.
What's the black thing in front of the radiator, so you have the silva radiator and in front you have another black one what is that? And great video I just bought a radiator and fan set from you Mishimoto guys :)
I got both a Mishimoto rad and upper reservoir replacement for my 07 STi, but they both come with the same caps. Should I not use the one that's on the rad because it is a two-way valve and reuse my OEM one?
Hello AWD C3K. You are correct. In this situation, you'd want the Mishimoto radiator cap on your vehicles expansion tank. You'd want the OEM radiator cap on your Mishimoto radiator.
Hello Mishimoto, This video is great and just in time. My old radiator cracked on top. I just got my mishi X-line and aluminum fan shroud today for my 2003 WRX! what a coincidence. Can you please tell me how I can hook up the 4 wires from my stock fan harness to the 2 wire Mishi fan shroud? Please help so I can drive fast again!
When bleeding did you have both radiator caps off or only the top high coolant cap off and the one on the actual radiator is on?? I just did it with both caps on and my car is actually running a bit hotter than before
You should bleed your system with only the highest radiator cap removed. You probably have air in your system, which is why your temps are higher than before. Remove the top radiator cap when the car is cool, then warm it up with the heat on high, and add coolant as necessary. This should fix your issue. :)
Using other types of coolant is fine, as long as you don't mix them. Just make sure to flush the system first. But the 08+ Subaru's should use Subaru specific coolant.
Trying to install this radiator, ancillary hose set, and radiator hose set in a 2002 WRX. While removing the fill neck overflow nipple from the new radiator, the nipple broke, leaving half the threads stuck in the radiator. Couldn't extract the broken part with a bolt extraction kit. 99% complete with re-assembly. Do you have any suggestions? Also, the Mishimoto radiator hoses are too long with the Mishimoto radiator. How much should be trimmed from each hose? Which end is best to trim?
Ok so i installed your all aluminum radiator on my 05 wrx sti and ever since my ancillary hoses have been busting and ive replaced them all but the the low pressure line that runs from the cap is bubbling as well as the lower radiator hose, ive burped the cooling system every time i replaced a hose and i cant figure out why i have to hose clamp the low pressure lines and why the low pressure hoses are bubbling, side note- i don't have have a coolant over flow tank and neither did the previous owners because it was in the way of the front mount intercooler but had never been a problem before the new radiator was installed, any ideas? ive been filling up the cooling system every 2 days due to this problem to prevent overheating
i have the fan shroud and the aluminum radiator, its been awesome so far but for some reason now the fans will only shut off when i turn the car off they just constantly run while im driving, do you know what the problem might be or any ideas thanks!
I bought the mishimoto X line radiator. Got everything installed expect this one bolt that looks like a plug and has a ring gasket on it. Where the hell do i put that?
Hello Phong Xiong. This plug was included for the 2002-2003 vehicles due to them not having an overflow port like the rest of the model years. It was essentially used to block it off.
I'm very confused with Subaru here. I don't have a rad cap on top of my stock radiator, if I want to get a different radiator, can I get one that does have a rad cap on top. Or would it not work
+Levi Grafton please email us at support@mishimoto.com or, if you're available now, feel free to call us at 1.877.GOMISHI - our specialists will be more than happy to assist you! - Team Mishi
It will work. it just gives a direct access point to fill the radiator vs the overflow , or the turbo inlet. the cap is offset to the right , or driver side to not be in the way of the air intake duct. better in my opinion , but also one more place a potential leak can occur.
***** We have replacement rads here: www.mishimoto.com/02-07-subaru-wrx-04-07-subaru-sti-replacement-radiator.html. Otherwise, our aluminum replacement will bolt right into your vehicle and provide improved performance and durability.
We try to keep these videos concise. If you need instructions on how to properly fill and bleed your cooling system, let me know, and I will explain it to you. :)
***** : ) Cool.. hey.. Some of the Mishimoto kits I see online include fans (generally also come with silicon hoses), Are these a bit thinner than the stock fans? are there any major differences with these fans? I see people re-use the stock fans, but it's a bit more of a tight fit in there apparently with the thicker core.
my buddie has same car as I do but I have many more performance mods than he, he choose this radiator and I choose the Ron Davis racing radiator, Mine remains 6 to 10 degrees cooler under all circumstances than his does, mine 406 ft pounds of torque at wheels, he 265 ft pounds of torque...speaks for itself...
One thing that might help you out, reuse your OEM radiator cap and put the nice Mishimoto one on the expansion tank. I was having trouble getting the rad to burp out properly and was was running about 10 degrees hotter than I am now. Reuse that OEM radiator cap and put the new one on the expansion tank. Temps came down instantly. This recomendation came directly from MIshmoto customer service on 7/24/17. Surprised its not in here, maybe the cap design has changed in the last 5 years.
5 people that disliked the videos bought fake mishimoto radiators on ebay 😂
I installed this radiator according to the instructions with a few friends and some beers. Worked like a charm! Making the radiator burp/bleeding the lines is essential to your success. My car now runs cooler and smoother. Many props to everyone at Mishimoto!
in your site it says;
"The provided Mishimoto radiator cap should replace the stock cap located on the expansion tank. The stock cap attached to the radiator should be installed on the Mishimoto Performance Aluminum Radiator. The Mishimoto radiator cap is a two way valve, while the stock radiator cap is a single valve. Due to the difference in construction, the Mishimoto cap cannot be used on the radiator. If the Mishimoto cap is fit on the radiator, overheating may occur."
but in video it is on radiator, confused
The inlet and outlet of this radiator is 1.5" in diameter. We recommend using worm gear clamps to get the best seal for radiator hoses. So I would recommend finding a clamp that has a range of 1.5" - 2". :)
Please explain the radiator cap configuration to me.... I have a mishimoto radiator and a mishimoto expansion tank. Both came with 1.3 bar 2-way valves. I understand I am supposed to use the stock radiator cap on the radiator(1.1 bar), but that would leave a 1.3bar cap on the expansion tank. i thought the expansion tank should have a lower rated cap? am I wrong?
teammishimoto.zohodesk.com/portal/en/kb/articles/tech-training-subaru-radiator-cap
BTW: Subaru are very insistent that you use their coolant, (formulated by Castrol for Subaru) as it apparently protects the alloy and other metals better than standard anti-freeze etc. Of course their coolant is not cheap. They have the older dark green, and the new red super-coolant now (extended drain time). While not compatible together, you can run the super-coolant in the older WRX's apparently. (Source: Subaru parts dealer).
you know what the best part is when he fills the radiator with none subaru coolant!! iv noticed that pros like him know enough to not use subaru coolant but if you go on a forum and ask, everyone will tell you that your subaru will blow up if you use anything other then subaru coolant.
Thank god this video exists haha now i can actually do this my self without worrying if i missed something!! Thank you! ill be buying the radiator very soon!
Got my Mishimoto Radiator in :DD cant wait to put it in!
bobkin611 Awesome! Be sure to tag us in some install shots if you have the chance! - Patrick M.
bobkin611 how did it go with the install? Feedback would be greatly appreciated
Gona be buying this rad today, OEM took a poop on me, damn plastic, I would just buy a OEM replacement but I dont want to worry about it cracking again, 400hp needs to stay cool, cheers! Great vid, sold me on the product
Will this work on a 2.5i?
Relied on the video to do the install.. all eventually worked out fine. Standard drain plug was almost inaccessible.I did have to shorten the lower hose somewhat. Have to be very careful with the top hose, as there is little clearance between fan and pulley when shortening, ensure clearance all round. The standard spring steel hose clamps are best gotten rid of in all locations too.
He does say in the video to fill up the cooling system with a 50/50 mixture of coolant and water. He also fills up the cooling system from the proper spot, since that is the highest point of the system, which will allow the system to bleed properly. He also mentions turning the heat on high to cycle the coolant and bleed any additional air from the system. Is there something you believe he didn't cover?
To much "commercial" input in this video.. hate it !
- but dont mind the radiator :D
would it make sense to add one of these in a standard Subaru Impreza 2007 ( hawkeye ) 1.5R
- because my old radiator needs replacement and I dont mind paying extra coins for a high quality part !!
very informative.Purchasing a 07 wrx wagon with 70k.Is there something I should check before purchasing?thanks
When bleeding the air out how long does it normally take for all the bubbles to leave the lines ? Cuz i just installed a mishimoto radiator on my 07 sti and bled it for about 2-3 minutes ... Is that long enough ?? Please help
Would this process be exactly the same on a 2005 STi? I'm thinking of getting this radiator.
To Mishimoto,are you SURE you have to remove the splay tray on the bottom side of the engine bay? It wasn't mentioned in the other video I watched and I'm not sure why you'd have to remove it since the lower main rad hose is accessible without doing so. What exactly are the steps are parts to this that couldn't be done if the splay tray was still installed? I'm only asking cause its a pain to remove it. Thanks in advance.
JackstandJohnny you probably don't care anymore, but I think the main reason was so that they could drain it more easily. Also makes getting to the fan clips easier.
Lol thanks buddy. I've since done this all to my wrx and after getting in there myself I can see why they did it. Thanks for passing on that info to the next guy though.
What's the black thing in front of the radiator, so you have the silva radiator and in front you have another black one what is that? And great video I just bought a radiator and fan set from you Mishimoto guys :)
I'm no expert but i think it is the A/C condenser...
Hi, I'm Just wondering i thinking about buying a VW Mk2 and fitting in your MM - TOYOTA GT86 / SUBARU BRZ 13 ROW OIL COOLER KIT would it fit?
Would the original cap fit on this new radiator? Thanks
Yes, the original cap will fit for the Subaru
I got both a Mishimoto rad and upper reservoir replacement for my 07 STi, but they both come with the same caps. Should I not use the one that's on the rad because it is a two-way valve and reuse my OEM one?
Hello AWD C3K. You are correct. In this situation, you'd want the Mishimoto radiator cap on your vehicles expansion tank. You'd want the OEM radiator cap on your Mishimoto radiator.
Hello Mishimoto, This video is great and just in time. My old radiator cracked on top. I just got my mishi X-line and aluminum fan shroud today for my 2003 WRX! what a coincidence. Can you please tell me how I can hook up the 4 wires from my stock fan harness to the 2 wire Mishi fan shroud? Please help so I can drive fast again!
hey,
the radiator tounches the front pannel on top. is it ok?? or should I get two new radiator mounts for top so it's not touching ?
When bleeding did you have both radiator caps off or only the top high coolant cap off and the one on the actual radiator is on?? I just did it with both caps on and my car is actually running a bit hotter than before
You should bleed your system with only the highest radiator cap removed. You probably have air in your system, which is why your temps are higher than before. Remove the top radiator cap when the car is cool, then warm it up with the heat on high, and add coolant as necessary. This should fix your issue. :)
Using other types of coolant is fine, as long as you don't mix them. Just make sure to flush the system first. But the 08+ Subaru's should use Subaru specific coolant.
Can i have this installed on a 2002 WRX Automatic Transmission?
Trying to install this radiator, ancillary hose set, and radiator hose set in a 2002 WRX. While removing the fill neck overflow nipple from the new radiator, the nipple broke, leaving half the threads stuck in the radiator. Couldn't extract the broken part with a bolt extraction kit. 99% complete with re-assembly. Do you have any suggestions?
Also, the Mishimoto radiator hoses are too long with the Mishimoto radiator. How much should be trimmed from each hose? Which end is best to trim?
Will this radiator fit a N/A impreza of the same year?
This will not fit the N/a models. Sorry!
Ok so i installed your all aluminum radiator on my 05 wrx sti and ever since my ancillary hoses have been busting and ive replaced them all but the the low pressure line that runs from the cap is bubbling as well as the lower radiator hose, ive burped the cooling system every time i replaced a hose and i cant figure out why i have to hose clamp the low pressure lines and why the low pressure hoses are bubbling, side note- i don't have have a coolant over flow tank and neither did the previous owners because it was in the way of the front mount intercooler but had never been a problem before the new radiator was installed, any ideas? ive been filling up the cooling system every 2 days due to this problem to prevent overheating
***** -
i'm a mishimoto fan now...
Slight cringe but very informative and helpful.
i have the fan shroud and the aluminum radiator, its been awesome so far but for some reason now the fans will only shut off when i turn the car off they just constantly run while im driving, do you know what the problem might be or any ideas thanks!
I bought the mishimoto X line radiator. Got everything installed expect this one bolt that looks like a plug and has a ring gasket on it. Where the hell do i put that?
Hello Phong Xiong. This plug was included for the 2002-2003 vehicles due to them not having an overflow port like the rest of the model years. It was essentially used to block it off.
I'm very confused with Subaru here. I don't have a rad cap on top of my stock radiator, if I want to get a different radiator, can I get one that does have a rad cap on top. Or would it not work
+Levi Grafton please email us at support@mishimoto.com or, if you're available now, feel free to call us at 1.877.GOMISHI - our specialists will be more than happy to assist you! - Team Mishi
It will work. it just gives a direct access point to fill the radiator vs the overflow , or the turbo inlet. the cap is offset to the right , or driver side to not be in the way of the air intake duct. better in my opinion , but also one more place a potential leak can occur.
any chance you guys still got that stock wrx radiator? lol im in need of one
***** We have replacement rads here: www.mishimoto.com/02-07-subaru-wrx-04-07-subaru-sti-replacement-radiator.html. Otherwise, our aluminum replacement will bolt right into your vehicle and provide improved performance and durability.
does the panel tool have a more specific name? im having trouble searching for one online
Just installed one of these on my 05 WRX..
I LIKE IT...:)
How about genuine Subaru coolant?
You can use any coolant recommended by the manufacturer or our Mishimoto Liquid Chill coolant.
whats that radiator looking thing on top of the engine above the turbo?
lostboyswerd top mount intercooler. Thats what it is called
Very good young man
Just got one installing it tomorrow :) well today...
@3:52 left side fan is missing two parts. See how the right side is complete and the left side isn’t?
This is why the car was perfect for our install video, we killed two birds with one stone.
What about the t stat could've also done that
We try to keep these videos concise. If you need instructions on how to properly fill and bleed your cooling system, let me know, and I will explain it to you. :)
possible to install this in a auto 2002 wrx?
I bought the fan shrouds and I cant figure out how to wire them
Thanks guys i ended up trying that method and the needle doesnt even reach half!
Awesome! Glad to hear that worked out for you. :)
Using the misihimoto cap on the expansion tank and using the oem cap on the mishimoto radiator?
Excellent video. Thanks.
shades2 You're welcome! :)
*****
: ) Cool.. hey.. Some of the Mishimoto kits I see online include fans (generally also come with silicon hoses), Are these a bit thinner than the stock fans? are there any major differences with these fans? I see people re-use the stock fans, but it's a bit more of a tight fit in there apparently with the thicker core.
my buddie has same car as I do but I have many more performance mods than he, he choose this radiator and I choose the Ron Davis racing radiator, Mine remains 6 to 10 degrees cooler under all circumstances than his does, mine 406 ft pounds of torque at wheels, he 265 ft pounds of torque...speaks for itself...
Awesome!
7:05 haha
when it comes to radiators it doesn't matter about the thickness of your rad, just the surface area
but thickness adds surface area...
Ok that wrx has the same drop of oil on the oil filter as mine. We're done here.
yezzzzir
you dont show here how to do it...
basically everything is going to go to hell. awesome! lol
Will this work on a 2015 STI?