Rb25det Blow Off Valves

Discuss the RB20, RB25 and RB26 series engines.
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USMCgetsome
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WICH BOVS FIT THE RB25DET AND WHAT ADAPTERS ARE NEEDED.

SUCH AS THE GREDDY TYPE S VALVEHKS SSQV BOVTURBO XSBLITZ BOV


DETurbine
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No universal one would fit. You would have to get it for the RB25 application. Look on ebay and you will be able to find any of those that you listed for around $100-150. If for some reason you don't want to do that, you can always just make a custom flang for it at any machine or welding shop, if you do not know anyone that can weld.

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JonPowell
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You are gonna be SO sorry if you put an atmospheric BOV on your RB25.

Get ahold of me, I am up in Albany and I will be glad to help you with whatever you need!

DETurbine
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lol.....your telling me jon!. My stock BOV took a crap and would not even hold 1psi of pressure...so I had a HKS SS one sitting around, so I put that on......holds pressure without a problem, but now I am really rich (smokes every once and a while (probably hitting low-mid 9's in the a/f ratio).

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Project240
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Can you get a recirculation fitting for, like, an HKS SSQV, so it won't vent to atmosphere?? Once I get my T3/T04 on and running, I don't know how well the stock BOV is gonna hold 18+ psi...

Joe
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yes most aftermarket BOV's do have fittings where you can recirc it if needed. i would highly reccomend it because it has a rich-stall after boost on a ATM BOV.

and why would you change it other than for a ricey sound? the stock BOV sounds like a Blitz DD and works great.

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Project240
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How much will they hold? I know it's a 1G DSM valve, which is pretty stout, but once you start getting in the neighborhood of 20 psi, might need something a little stronger...

(and yeah, I do like the sound of the HKS sequential ;) :fruit)

PANGES
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I actualyl already have a universal HKS SSQV bov... lol, am i crapped? I'm planning on getting a FMIC though... so now i have to get a flange for that and a way to recirculate it, correct? How much is the stock bov able to hold anyways?

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JonPowell
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I have heard stories of DSM people pushing more than 20PSI on the stock valves....I dont know if its true, but I heard stories...you know, people talking....they say all sorts of stuff....the voices will stop some day, I hope..............I WONT DO IT!!! I CANT HURT HIM!

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accel junky
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Panges:

You can get a recirc fitting from HKS or any HKS dealer fir $10. I got one and installed it on my ssqv. Used 1" hose and made a 1" fitting in my custom intake to accept the hose.

Gabe35Coupe
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HKS Also makes a product called the EIDS (Electronic Idling Stabilizer). It's specifically for air flow meter equipped cars to run BOV's to atmosphere. What I believe it does if I remeber correctly is makes the AFM signal drop down slower and at a smoother gradual slope instead of a sharp drop off when you lift. This gets ride of the rich condition caused by the sharp drop in AFM signal you get when venting the BOV to atmosphere. They do have an application for pretty much all turbo Nissans. I just checked and they have themon thier site also: HKS EIDS They do also make a recirc fitting for SSQV, the Racing Bypass II comes with it already. The HKS Racing Bypass and Standard BOV already have the type of outlet that you could attach a hose to.Hope that helps.

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JonPowell
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Good find! Thanks for the info!

I never knew about something like that?!?!?

Good alternative to swapping ECU's to a MAP sensor standalone.

Gabe35Coupe
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Thanks. Not to hijack this thread, I'm picking up my RB front clip this weekend from Phaze 2 so I'll be "joining the club" soon! I'll probably need your guys help also. I've had several RWD Japanese cars I've built up, hopefully I can contribute here and there.Later.

curbsurfer253
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Not to hijack the thread or anything:rolleyes ... but I have the HKS EIDS idle stabilizer for sale and a Sard R2D2 bov with a recir kit included for sale. Contact me at [email protected] if interested.

PANGES
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sorry for bringing up this old thread again... but anyways, I just ordered this recirculation fitting on ebay and was wondering... how the hell does this damn thing go on?

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accel junky
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PANGES, please refer to the other thread where you posted this question, I answered it there.

http://240sxforums.com/forums/...age=2

Show me some pics of you want to confirm that its the right part.

-Daniel

PANGES
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hehe, that's in another forum... but ya, i was trying to find out where i read bout it... lol.. Thanks

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lyon23
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the 1 gen eclipse bov will fit i'm runing one on my rb20 right now... my original got messed up after venting into the atmosphere, after one months use it did not want to hold more than 6 pounds and it stayed open after that... I had a manual boost controller and was wondering why it didn't hold the boost and this was it... so now i got the eclipse one on and it sounds great and did not recirculate it either and again I need another bov... I was thinking of a HKS standard which can be adjusted and yest this one will be recirculated back to the intake.


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