Bovs?

[GuestyR33]

Wow... didn't think my topic would get this much of a debate happening.

lol... Good to hear everyones opinion. I'm not sure wat im doing yet, but

either way i'll definately keep the stock bov lieing around for a while.

thanks everyone.

[BlackRBS13]

In my experience the best BOV you can buy is a TIAL. Maybe they dont distribute down there but anyone serious up here has one. When I say serious I mean guys running like 40psi. They are a little pricey at about $300 US but they are the best out there. Also they are by far the best sounding BOV I have ever heard. Here is a link to their site. However they do not recirculate but I am not sure why you would care about that especially if you are replacing the ECU.

TIAL BOV

Edited May 10, 2006 by BlackRBS13

[R31Nismoid]

In my experience the best BOV you can buy is a TIAL. Maybe they dont distribute down there but anyone serious up here has one. When I say serious I mean guys running like 40psi. They are a little pricey at about $300 US but they are the best out there. Also they are by far the best sounding BOV I have ever heard. Here is a link to their site. However they do not recirculate but I am not sure why you would care about that especially if you are replacing the ECU.

TIAL BOV

Sadly, he is not running 40psi, and i dare say not a drag car or whatever your referring to.

He is talking about a reasonable street application.

Not some far fetched car using 11ty billion PSI...

The re-circ is required if you are keeping the AFM. Are these 11ty billion PSI cars using AFMs? I'll take a wild stab in the dark and say that they are probably not

The re-circ helps idle (as GTR BOV's are open @ idle) and then stop stalling and other mis-behavioural characteristics that an AFM equipped car can sometimes encounter using an ATMO BOV.

Sometimes it can be tuned out, but what pay $500 in tuning to find that out?

[BHDave]

No one's said it yet.

Trust Type R.

Large piston area, decent travel, adjustable preload, recirc (or you can buy a nice big trumpet attachment for it), 2 inch outlet.

[Modena]

Ok ill share my experience.

I was after the whole "uleh cool pshshhht noise" from an atmo BOV... after hearing my mates GFB Stealth FX.

So I bought me a GFB Hybrid... it has 3 features, full atmo, 50 atmo 50 plumback (meant to stop stalling and overfuelling) and full plumback.

So far Ive been driving with atmo setting and having quiet a number of stalls and backfires... it actually frustartes me greatly... so I will plumb it back to 50 50 and see if it improves. if not then I will plumb it back.

[Josh]

having ignored everyone now, i suggest no bov and just have super psycho compressor surge, and we'll count down the days to compressor wheel failure

... I run no BOV on my daily driver/track car and have had no problems.. the same goes for a lot of my friends who run higher horsepower track only cars and they have never had one single problem related to running no BOV...

It may have been posted before but do you have a documented case of turbo failure due to no BOV?

Edited May 11, 2006 by Josh

[R31Nismoid]

depends on your driving style.

i ran no BOV for a while. I could stop it from stalling or i could let it stall.

Was all dependant on my driving style and handling of the clutch/accelerator.

Track cars - wont notice as its WOT most of the time

[Josh]

I have noticed stalling only a couple of times in about 9 months of use and yeh it is like you say dependant on how you drive.. its not an issue whatsoever..

still haven't seen any failure related to it tho..

[FATGTS-R]

I have an import R31 coupe and it came factory with no BOV and it had stalling issues. Never figured why Nissan did that?

So I installed a $50 plastic Bosch item plumbed back and it works fine. At 235 rwkw there was no issue with it at all. Power is now at 280rwkw with about 20psi and the only issue is venting capacity as I get a slight flutter at lift off when at WOT and max rpm so I am going to just either whack another one on or use the standard GTR items.

People always mention leaking and BOVS. How can a BOV leak if installed after the cold side of the cooler?

[BlackRBS13]

Sadly, he is not running 40psi, and i dare say not a drag car or whatever your referring to.

He is talking about a reasonable street application.

Not some far fetched car using 11ty billion PSI...

The re-circ is required if you are keeping the AFM. Are these 11ty billion PSI cars using AFMs? I'll take a wild stab in the dark and say that they are probably not

The re-circ helps idle (as GTR BOV's are open @ idle) and then stop stalling and other mis-behavioural characteristics that an AFM equipped car can sometimes encounter using an ATMO BOV.

Sometimes it can be tuned out, but what pay $500 in tuning to find that out?

Actually one of my buddies is running a TIAL right now on his bone stock SR20. Lets see I know 7psi is slightly under a 11ty billion but i think you get the point. And he is using a MAF and has absolutely no problems. So your stab in the dark was a far off miss. Hence my suggestion of a BOV that will be good forever no matter what other changes you make. I doubt i am the only person who would like to do things right the first time. and I have never experienced problems without recirc but I only have experience with rb25s and sr20s and little experience with RB26's as I just got mine and it is still stock BOVs. Maybe rb26 is different. By the way link me a video or something of a car running 11ty billion PSI cause I cant recall ever seeing one. Also as far as tuning goes it sounds like he will be needing some tuning anyway with the change of ECU.

[R31Nismoid]

Look around this forum

There are more than enough posts to backup the re-circ with MAF.

Are the countless people lying?

Like i said, its dependant on driving style as much as anything else.

I aint doing the homework for ya, if you need more reading its all accesible here in the forums past posts

cheers.

[thizzle]

lmao yeah ya not serious unless ya runnin 40psi...

/me leaves with tail between his legs with a tiny 22psi..time to get serious i guess...

[WhitePrincess]

what a debate hey!

im in the same boat as you GuestyR33, dont know what i want and dont know whether i should or not. this has been insightful though

[ToF]

Sorry if this comes out the wrong way but too many people here own these cars for the wrong reasons. Overly concerned about the "uleh" noises it should/shouldn't make.

TBH you should be more concerned about what is best for your car's operation/performance. But having said that everyone has their own interests and who am I to govern that.

[AdamsR33]

Mate i run a GFB stealth fx, no problem with stalling or over fueling, i just got 490km out of a tank. I have mine set to full plumbback only cause i don't want to attract too much attention from the coppers. but have run it on full atmo, half atmo/plumbback and still no prob stalling. but you do have to set it up right and it gives instructions on how to do it, not hard.

Good luck with your choice dude,

[Modena]

BTW: My car stalled about 20 times yesterday... half of it was on a freeway!! I now got it full plumbed back... Mr Atmo BOV can f**k off.

[R33TOM]

hahaha stalling 20 times,

why not just rip it out and replace it with the stock one.

[LatinR33]

Its the rule of thumb. Skylines and Atmo blow off valves do not go hand in hand. If you want some kind of induction sound just buy a pod box it up and your laughing. no stalling and you still get the "whooshhhh" sound. just some food for thought personally i love my silent skyline the sound of the exhaust and the RB25 engine is a sound of beauty to me

[RBFIRE]

Ok, Here is my feedback after installed a HKS SSQ BOV

my also got blumb back, but I didnt use that feature, because it require an S shape pipe to connected, so I leave it vent out to the atmo, and blocked the other pipe off.

car is running fine, no stalling or backfire, and i also got rid of that wssshhhhh on light throttle!!!

really happy with it.

I still got my stock BOV, just in case.

I snapped the bolt where you adjust the sound! stupid!!!

[LatinR33]

hks ssq with a plumback feature. Im not very familiar with this bov. is it like a gfb hybrid you can have it 50% plumback and 50% atmo or whats the go???