For the Love of Nissan Just recirculate the Bov

[jmac636]

For people that don't know:

Vented to atmosphere is not a good option for nissan tunes.
you will have running issues that can be easily remedied by a simple recirc hose.
believe me, i went vta at first and never again on the altima. reliability is on par with a non turbo setup, has great blow off sound still and runs like a champ - 11lbs all day long.
recirc it, youll be stubborn about it at first, but its the right thing to do and youll be much happier in the end.

this is stickied somewhere but here it is again.

From: "Ben Pila" <[email protected]>

To: <[email protected]>

Subject: Re: BOV Setup Information

Date: Mon 10/29/07 05:42 PM

At 05:35 PM 10/26/2007, you wrote:
Hey Ben, one more question I should have asked before... Is the JWT
tune designed with venting to atmosphere in mind or with
recirculation in mind? I currently have mine venting to atmosphere,
but Im hearing that I might have idle issues with that setup.
Thanks
Jay

Hi Jay,
The Nissan control system was not designed to run a BOV to
atmosphere. There is no way to make the ECU work with this as the
amount of air flow in the system that is lost if an atmospheric BOV
opens is an unknown amount to the ECU. Once the air flow comes
across the MAF sensor, the ECU expects all that air to be in the
system and adds the fuel based on this amount. So if you do not want
to have the stalling when coming to a fast stop and/or the rich
conditions between shifts, we recommend you run a recirculation type
valve (also known as a compressor bypass valve). It might be
possible to convert your existing valve to the proper type. Check
with the company that made your BOV for this. Note that the air flow
when recirculated, should dump back to the inlet side of the turbo
and ideally aim at the compressor wheel in the turbo inlet. This
also helps keep the turbo more responsive between shifts.

Best regards,
Ben Pila (Technical and Sales Support)
Jim Wolf Technology, Inc.
212 Millar Ave
El Cajon, CA 92020-4219
(619) 442-0680 Mon-Fri 8am-5pm PST
(619) 579-8160 24 hour fax
JIM WOLF TECHNOLOGY, INC. / NISSAN PERFORMANCE / NISSAN RACING /INFINITI PERFORMANCE

[murda-c]

I don't need a bov cuz my belts screech when i shift at 6.5k so everyone at school thinks i'm turbo.

[s13 @ fullboost]

Wow reminds me of the DSM forums

[slider2828]

He wants that Ricey PPPOOOOOOOSSSSSSSSHHHHHHHHHHHHHHhhhhhhhhhh. what can we say....

[rc1honda]

Originally Posted by slider2828

He wants that Ricey PPPOOOOOOOSSSSSSSSHHHHHHHHHHHHHHhhhhhhhhhh. what can we say....

QFT the sound is priceless. I think a lot of people beat the shit out of thier cars here and i don't really think a BOV will break something faster then driving the cars like we stole em.

[allntrlundrgrnd]

if you buy me the hks recirc adapter i will

[rps13sr20det]

in the long term...I won't see this making a difference

[ZX88]

i just put the jdm tyte kazoo adapter on my greddy. problem solved./

[HyperTek]

blow thru maf before the throttle body ftw.. vent ur bov all day every day

[bejota180sx]

Originally Posted by HyperTek

blow thru maf before the throttle body ftw.. vent ur bov all day every day

aren't our mafs designed for draw-thru?? and using them for blowthru damages them? at least thats what ive read and heard from people who used to own blow-thru with z32 mafs...

[Dutchmalmiss]

If I ran atmospheric, I'd make it blow bubbles everytime I shift.

[Flipzide]

my s14 that i bought for track use came with an atmospheric setup and i'm too lazy to recirculate it :-P

[allntrlundrgrnd]

lol my friend taped a duck call on his sr for shits and giggles

[LongGrain]

my car runs like a top with vta. i dont see any point in recircing it.

[WISH ONE]

there isnt no point to this thread.. this is all you will ever need.

[MetricHotrods.com]

blow off valve? whats that? i just let it slam into the turbine at 1.2 bar. no, really. bov just leak boost and flutter. fuck em.

[BoostedCoupe]

Originally Posted by MetricHotrods.com

blow off valve? whats that? i just let it slam into the turbine at 1.2 bar. no, really. bov just leak boost and flutter. fuck em.

Im with this guy. I know alot of people on this forum dont run blow off valves either. To me aslong as you dont hit full boost than let off to let it surge over and over everyday than it wont hurt. Its those people that Hit boost in first gear in the middle of town just to let it surge that fucks their turbo's up.

[YoungGun]

I have idle issues, but it sounds like my sr is cammed.

At stoplight

Mustang guy "That thing is pretty fast is it cammed?"

Me "No."

OMGLAWL

[HyperTek]

worked out great when i had my sr20

[bejota180sx]

how did you run it like that? cause i want a blow-thru i just dont want to be burning up mafs regularly since z32 mafs are really hard to come by in PR and waiting for someone to post one up and hope its working fine is kinda shitty

[MetricHotrods.com]

most of the SR guys here just replace that one pipe you guys all attach the BOV to with a solid pipe, the upswept one on the side of the motor. sorry im not too SR savvy.

[allntrlundrgrnd]

i guess nissan and every other car manufacturer installed bypass valves for no reason?

get a clue

[96Turbo]

Originally Posted by allntrlundrgrnd

i guess nissan and every other car manufacturer installed bypass valves for no reason?

get a clue

tru dat

OEM manufacturers do their research....and if a BPV wasn't necessary then you bet your ass they'd ditch it to save a couple bucks on every unit

[MetricHotrods.com]

Originally Posted by allntrlundrgrnd

i guess nissan and every other car manufacturer installed bypass valves for no reason?

get a clue

oh great argument (insert sarcasm). anyone who says "well the factory put it on there" has not been modifying cars very long. worst argument ever.

so sir, lets all just drive stock cars since thats how nissan designed them and changing anything is just stupid right?

i will reitterate. the bypass valve is there to preserve the stock turbo, while not confusing the ecu/maf. HOWEVER, if your car is modded, and you have a quality, ballbearing turbo, then not running a BOV isnt going to hurt it much. and if it does, you put another one on there.

running a bov is like saying "hi, i would like a boost leak. and i want it riiiight heeerrree"

[allntrlundrgrnd]

Originally Posted by MetricHotrods.com

oh great argument (insert sarcasm). anyone who says "well the factory put it on there" has not been modifying cars very long. worst argument ever.

your right i have not been modifying cars for a relatively "long" time, but id rather spend 200 bucks on a quality bov that does not leak at idle or give me any problems whatsoever than replace a turbo that took a shit on me unnessecarily.

once again, can we let this thread die please

[MetricHotrods.com]

Originally Posted by allntrlundrgrnd

your right i have not been modifying cars for a relatively "long" time, but id rather spend 200 bucks on a quality bov that does not leak at idle or give me any problems whatsoever than replace a turbo that took a shit on me unnessecarily.

once again, can we let this thread die please

the part youre not getting is the "quality" doesnt matter. they just leak. period.

if i was to run a BOV, which when i put together my twin turbo set up, i might, it will be dual greddy type R bovs and it will sound like the hammer of Thor.

problem is, they dont pass JCI

[jskateborders]

get an hks ssqv. Never have to worry about running atmospheric/stalling.

[96Turbo]

Originally Posted by jskateborders

get an hks ssqv. Never have to worry about running atmospheric/stalling.

why? It's still just an atmospheric bov...

[raz0rbladez909]

Originally Posted by jskateborders

get an hks ssqv. Never have to worry about running atmospheric/stalling.

only if you get the recirc fitting, if not it's still going to stall no matter how minimal it is.

[ericcastro]

So no blow off,
but counter the anti rice effects of this by getting a electric blow off noise thing from pep boys??