RADIATOR BREATHER! Woo Hooo!

Discuss the RB20, RB25 and RB26 series engines.
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SullivanRacing06
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ok well, ill pull the can back off and take pics for yall on how to do the install if youd like?? and do a walk thru step by step,

i just need some on to send the pictures to so they could post them for me, i think this is one of the best "prevent the car from overheating" mods (minus the koyo full aluminum rad) that ive done to my car, it didnt have ne over heating probs but after all the air bubbles that came out thru the swirl pot i was a lil worried!

id be more then happ to do a write up on it if people are interested ???


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carmo
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id be more then happ to do a write up on it if people are interested ??? [/QUOTE]

Yes! Very interested. Would this be considered a "surge tank"? I think I got the basic idea but the instructional picture left a couple of unanswered questions.

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SullivanRacing06
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this is considered a swirl pot, i believe a surge tank is what you use for fuel, correct me if im wrong, the swirl pot uses the two highest points of your cooling system in your engine bay, one on the motor, and the other on the rad. to install this properly you need to have a dummy cap (to replace the rad cap), run the old over flow nipple to the second highest inlet on the swirl pot. tap a 1/8th npt hole in the bleeder screw hole on your motor (drill it out), and run the hose that comes off the nipple of the old over flow to the highest inlet on the swirl pot. mount the swirl pot neck higher then both the bleeder hole and the nipple on the rad, after you mount the swirl pot you will have to make a adapter that will allow the water being sucked through the two feed hoses back into the lower rad hose, i welded a bung into a aluminum piece of 1.5 inch pipe, then i screwed a 3/8 barbed fitting on to the "adapter/ return pipe", the suction from your water pump inbetween the t-stat housing and the lower rad end tank is what causes the swirling affect in the swirl pot. thus creating a sort of vacume. the bleeder hole you tapped is going to start pissing out fluid first because its easier for it to escape from the then all the way bk in to the rad.

hope this helps explain how the "swirling affect" is created

hope

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raremotive
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This is the cheaper alternative to the gt cooling mod used in the JAF series. This been around long time.



First picture shows two swirl pots, this can be done with a single.

Basically.. common way to do it is to replace the itb's with a large single. Remove the balance tube, and plunge into coolant passages in the intake manifold adapter. There are 3 passages in the intake manifold hence 3 hoses that goes into the swirl pot. Then everything is hooked up just like the breather tank, but to accommodate more flow the return is hooked to the radiator.

ITB's can be kept, but one would have to make a new balance tube.
Modified by Rare_f8 at 12:50 PM 3/31/2009

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USMCgetsome
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where were you hiding this?

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raremotive
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in my external hd..

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USMCgetsome
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i'm asking this because no one has ever posted up about this as a thread. It upsets me greatly. We always talk about overheat issues and cooling mods and this never popped up. Anything else you guys are hiding?

btw i think i'm just gonna use the 3 port method instead of the 4 port method. I'm not to savvy with the drill and tap method to go at it on my block. Think i'll run into any issues?

l0nestar
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Rare_f8 wrote:
I spy about $400 in SS fittings and hose. :-D

I'm highly considering one of these as well.

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raremotive
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KUILLIN_DRIFTER wrote:i'm asking this because no one has ever posted up about this as a thread. It upsets me greatly. We always talk about overheat issues and cooling mods and this never popped up. Anything else you guys are hiding?

btw i think i'm just gonna use the 3 port method instead of the 4 port method. I'm not to savvy with the drill and tap method to go at it on my block. Think i'll run into any issues?
I got more pictures around here about where to plunge into on the intake adapter. I post later this afternoon/evening..

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SullivanRacing06
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ive been looking into doing the 3 outlet set up for a while now, i need to locate another 26 itb section before i decide to do so, ill keep everyone posted!

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USMCgetsome
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there was two in the classifieds on nico. itb rb26

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SullivanRacing06
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i looked, what the rb forums or the nissan forums?

l0nestar
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I think Coolwhip has at least one. (I know because I shipped him my complete 26 assembly). Hit him up, no telling if he still has it, or what he wants for it.

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raremotive
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Ok this is what I have in my photo collection for the GT cooling mod..(not mine)



You have to plug the balance tube idle holes, and right above each three cooling channels you drill into it... this is the highest place for air to collect, then you tap it.

Again, I think the breather tank you guys are posting is enough for street applications. Once tracking, gt mod might look more friendly.

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SullivanRacing06
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so if i eliminate the equilizer tube then the 26 w itb wount idle rite with the itb?

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raremotive
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SullivanRacing06 wrote:so if i eliminate the equilizer tube then the 26 w itb wount idle rite with the itb?
eliminating the balance tube means going to a big single.. you can make an external balance tube if you want to keep the ITB's, in that case you can skip plugging the idle holes..

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SullivanRacing06
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i just ordered the piece where the injectors fit in the intake manifold for 45 from a fellow nico member! he shipped it out today, so when ever it gets here ill go ahead and build a balance tube and build the cooling pot, and mod my rad upper end tank

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USMCgetsome
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loving the motivation for installation in this thread!

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SullivanRacing06
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what do you mean?

the first day i got my tank i had it installed and workign properly, the piece i ordered just came in, i just taped the colant ports, cam eionside to have a coors, then ill go and start modding something up for the equlizer tube, thatll be the fun part

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Neejay
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I won't be able to do this. A swirl pot won't be able to be higher than my engine with the stock manifold. It'd be pointless for me.

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USMCgetsome
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nejay pics plz we can figure this out bro!

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Neejay
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KUILLIN_DRIFTER wrote:nejay pics plz we can figure this out bro!
lol I'll take a few pictures tomorrow. Thanks man. We'll see!

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raremotive
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Neejay wrote:I won't be able to do this. A swirl pot won't be able to be higher than my engine with the stock manifold. It'd be pointless for me.
you need to go higher than the bleed hole you tapped into.

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SullivanRacing06
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just started on the equlizer tubes today

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USMCgetsome
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i finally got mine but it doesn't have the off set barbs for the swirling action. pics to come.

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USMCgetsome
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ok who's got a pic of the lower radiator hose adapter installed?

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SullivanRacing06
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i installed my lower adapter about 3 inches away from the t stat housing so itll get good suction

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USMCgetsome
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ok. I like that concept. how's it all working out for you sullivan?

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SullivanRacing06
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the set up is working or was working like a charm, i broke the shift fork that is for 4th gear, and it messed up the syncro for 4th as well, so i decided to pull the motor and fix the crack in my oil pan as well, pulled the transmission (which is brand new this is the 3rd time something has broke in it btw!!!!!) and im using my old r32 gtr transmission as a parts whore, im also trying to finish up the balance tube on my itb so i can make my own jun cooling mod its almost done

i think ill be the first on nico to complete this set up??? thatd be cool

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SullivanRacing06
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just got done welding my balance tube set up! pics will be up soon! hopefully ill have all this on the motor and installed and bled


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