RADIATOR BREATHER! Woo Hooo!

Discuss the RB20, RB25 and RB26 series engines.
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USMCgetsome
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Well well well. These things have been out since 2005 and can be had from GREDDY/WEAPON R/and of course the knock offs. Wish i would have known about them alot sooner. I'm not pleased to know that this would have solved my issue years ago.

So now at this point i ask. Who has one installed or has experience with it.

Heres a pic

http://cgi.ebay.com/ebaymotors...A1318

and adapter with a 1/8 npt barb that u need to buy at lowes/home depothttp://cgi.ebay.com/ebaymotors..._1337


Joe
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thats a f***ing expensive catch can

any reason why you need this?

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USMCgetsome
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according to the greddy website stand by.

http://www.greddy.com/products...ry=32

There u go uninformed NICONAUTS! Mostly for people like me who have issues with overheating issues or air bubble issues that haven't been purged right.

btw i found one for 57.50 but it's a knock off. and that adapter for 15.50 so i made out like a bandit.

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krayton
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holy crap thats expensive. i got my greddy for half that. but summit has some too.

happy with mine, but i modded it alot. also if u weld aluminum they are so easy to make. just buy a ac dryer, and cut it open and weld that rad cap thingy to it. looks just like a greddy one

Joe
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i definitely understand the principal behind it just dont see the need. RB's have coolant bleeders on the engine. it isnt THAT hard to bleed them clean of air haha


Cjmartz2k
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It's tough to tell from the ebay pictures, but those might not be the same thing. The Greedy (didn't mispell that) one is a "swirl pot" and it spins the coolant around. See how the input is offset? It KINDA looks like the ebay one is just feeding it right in at a 90 degree angle. Like I said, tough to tell in the pictures though. If the ebay one is indeed a swirl pot, I'm ordering one tomorrow. I'll see if I can get some pics from my buddies GTR with the greddy one he has.

Cjmartz2k
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grenade180sx
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powered by max makes them as well for 60 bux i believe they work great the purpose is to constantly bleed your cooling system so it should never get air in it.

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krayton
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swirl pot? crazy. guess i ruined mine by modding it. whats swirling it do?

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USMCgetsome
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also what size is our radiator hoses in mm or inch diameter?

johnny butt
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KUILLIN_DRIFTER wrote: also what size is our radiator hoses in mm or inch diameter?
idk but i got a 34mm adapter for a temp sensor that fits inside of it.

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rb24t
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how do you install it and does the rad hose adapter go on the upper or lower rad hose???

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USMCgetsome
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http://cgi.ebay.com/ebaymotors..._1317

look at the bottom of the ad. It has the installation there. Also the adapter goes to the lower rad hose.

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rbs14kouki
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i have a greddy on my rb !!!

- the top nipple goes to the over flow tank (black hose)- second one below goes the the top of my head (braided hose)- third one to my upper rad tank (braided hose)- fourth one (the one under the tank) does to my lower rad tank


Modified by rbs14kouki at 7:20 PM 3/8/2009

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USMCgetsome
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what size barb came with the lower radiator adapter? 1/4in? and what size hoses were used?

Yellow4g63
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was thinking about getting one of those. I don't have the bleeder on my rb20 anymore since the rips intake manifold install. I know Phase 2 has them too.

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Kansei240sx
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Welcome to swirl pot world. These things are actually useful and are implemented by many automotive manufacturers already. Using one of these on an rb, some water wetter drops temps considerably worth the investment of buying it all.

Cjmartz2k
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Not real sure how the swirling is supposed to help, but I've heard from a few people as stated above, they help out a lot. Maybe just really good advertising on the part of Greedy? Either way, it looks cool enough for me to buy the ebay knock off if it swirls too.

Kullen, let us know when you get that thing in if the barbs are offset to make it swirl.

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Nissan2367
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Cjmartz2k wrote:Not real sure how the swirling is supposed to help, but I've heard from a few people as stated above, they help out a lot. Maybe just really good advertising on the part of Greedy? Either way, it looks cool enough for me to buy the ebay knock off if it swirls too.

Kullen, let us know when you get that thing in if the barbs are offset to make it swirl.
I assume the swirling is used like a vacuum and pulls the air bubbles out of the system. I am getting one too but i need to find room in my engine bay! I dont even have room for a catch can!

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USMCgetsome
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anyone seen the radiator block-off cap that supposed to come with this kit?

240z4u
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Does the water swirl the other way in Austrailia? These details are important.

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USMCgetsome
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LOL! I never expected that question!

Bluefire
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Cjmartz2k wrote:

The breather tanks from greddy and sard are breather tanks, not really a swirl pots. The idea behind the breather tank is essentially to route the highest points of water in the motor where air bubbles can get stuck (ie. top of radiator, motor bleed valve, etc...) to a single high mounted tank. Then all the air bubbles will collect in the tank instead of being stuck in the motor.

Even if you were to completely bleed an engine of all the air in the cooling system, you will still develop air bubbles. This is because the engine will have hot spots and flash the water creating air in the system.

Also most swirl pots i've seen go on the upper radiator hose and the water will swirl through the little tank before going into the radiator. The swirling action brings any air bubbles in to the center top of the tank, which you can kind of see from the picture above. You then have a nipple on the center top of the swirl pot and direct the air bubbles to a breather tank to collect.

Also note that the breather tank must be higher than the engine and radiator. You also have to run a non-pressure cap on the radiator. This will allow the water to flow continuously to the breather tank.

-Bluefire

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USMCgetsome
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anyone know where to get this non pressure cap at?

n/m i just thought of cutting the little plunger off from the stock cap. WIN!

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SullivanRacing06
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ok so im intrested in installing a swirl pot on my r32 rb26, so the top port goes to the bleed screw on top of the balancing tube and the second nipple goes to the lower rad hose adapter? the top port below the pressure cap runs to the overflow can? is this correct? thanks for ne help!

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USMCgetsome
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SullivanRacing06
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just ordered one! ill keep everyone posted!

s14_sport
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This was one of the best investments i ever purchased for my RB.During my swap I changed radiators twice, changed my thermostat another time, also did a rebuild of the engine and everytime I had to drain coolant and refill. Sometimes felt like I could never get all the air out of the system no matter what method I used. I hooked up a coolant breather tank and I now I actually ENJOY bleeding!! lol

I don't even have ALL of the recommended lines hooked up and it works perfectly for me.

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USMCgetsome
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where the f--k were you back in 2005 when this damn thing came out! I saw no posting about a damn breather. I had issues with overheat for about 1 1/2 cause of leaks and air bubbles. Damn rb drove me nutz. Sounds like i'm mad, which i am. I'm simply upset due to no one informing me about these untill recently.

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Neejay
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this sucks, because there is no point higher than my engine right now. I can't use this yet.


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