I want loud BOV!

[duskinas]

Hi all,

This is my first post here so let me introduce myself. My name is Tadas, I'm 24 and I live in Lithuania(Eastern Europe)I'm going to buy Nissan S14 soon (it's Nissan 200sx with SR20DET in Europe) :yummy

I searched this forum alot B4 making this post but found no straight answer to my question.If i understand correctly if i install atmospheric BOV i will have idling and maybe other problems.But i just love the sound of atmospheric BOV!! (RICER? I hope not :rolleyes )Is there any way to install loud atmos BOV and avoid problems? Or maybe there is some way to make recirc BOv hiss..?

[rico05]

A recuriculating compressor bypass vlave will still chirp, but of course no where near as loudly as a vented one. I really like the sound of the Blitz Super SOund BOV, but my all time favorite is the HKS SUper Sequential BOV. I have an aquantance that has the Blitz, and after he recuirculated it, he noticed two things:

1) He was running WAY rich with it vented, and he would burn through spark plugs at a VERY fast rate (like every week or two2) He would get more lag as pressure had to rebuild up in the intercooler plumbing

Now he was running with the stock T25 and a Blitz FMIC, so that will expalin the lag issue. However, he is much happier now that he is recirculated. Myself? Who freakin cares about going through spark plugs or a little lag. Vented BOVs own.

BTW, welcome to NICO. SOme folks are kinda harsh, but there is a LOT of good info to be had:)

[xxtrizz]

Damn every week or two? Are you sure his car wasnt broken?

So give a list what are some good Vented BOV's and some good Recirculated BOV's?

[Trppen37]

Vented BOV = "old school" HKS Sequential not SSQV and for recirc prolly hands down the Blitz DD.. in my point of view..

[nnkfws333]

If you want a really loud one try the TurboXS Type H-RFL. That thing is really really really loud.

[Kiwi_S13]

If you want a really loud one try the TurboXS Type H-RFL. That thing is really really really loud.

RFL = REAL *****ING LOUD!!

Put a few spacers in one of those and you have ear peircing fun all day long!

[240 Trainee]

So I'm curious, If I got a fuel managment system (Apexi SAFC), could I tune the car not to run rich, preventing the burning through plugs problem?

[cory2081]

get an HKS SSQV, I had one on my Buick GN, that thing sounded soooooo sweet. I never had a problem with that car running way rich after venting the boost. You can recirculate an SSQV if you have to, they make a kit for that, I've seen it (somewhere). The other advantage is that IT WON'T LEAK!!

[ride4lame]

The only sure fire ways to run 100% with an atmospheric blow off valve is to either use a blow through mafs setup where the bov vents before the charged air gets to the mafs....but this leads to more problems(heat ruining mafs and oil doing the same)Or you could find the HKS kit that uses map sensors and converts that signal to the correct mafs signal. This measure the amount of pressure in the intake manifold as opposed to the amount being pulled into the turbo

[Structure240sx]

i have a recircualted hks ssqv and its still loud. has a different sound than the vented ones but its still very audible.

my firend has a turboxs rfl on his dsm and it doesnt seem as loud as people have talked about it

[ride4lame]

oh as an extra note, the HKS kit is very hard to find, and can only be found used. I don't think HKS makes them anymore. You are way better off recirculating!!!!!!

[C-Kwik]

My recirulated BOV can be heard just fine. If you have a free flowing filter, the sound tends to still escape out enough for many to hear. I find that having a smooth running car and the sound of turbo spooling is more my taste than some BOV discharge. Not saying I don't shift next to open Honda windows occassionally. :p

[Structure240sx]

exactly the same here kwik. before i got my turbo kit i wanted that bov noise soo much, now if it went away i wouldnt mind it too much. i just like to use it on the occasional ricer

ride- if you're talking about the hks recircualting kit i got mine from horsepowerfreaks.com for $20 shipped to me in about a week

[duskinas]

Thx 4 your answers!If i understand correctly, the best solution is to buy HKS SSQV and recirculate it and it still will be quite loud.

[Structure240sx]

yes

[cory2081]

I havnt looked close enough to turbo KA kits. I assume that the MAFS is on the pressure side of the turbo....not the inlet?? My GN's was on the inlet, never caused any problem with my BOV being open instead of recirc. People would freak when they heard that SSQV on a Buick GN, it's just a sound not normally heard on those cars. Can't wait for my 240 to have that sound!!

[Structure240sx]

most people have the mafs before the compressor or on the intake. any turbo kits made for the ka have it before the compressor.

[chickentendah]

... I have an aquantance that has the Blitz, and after he recuirculated it, he noticed two things:...However, he is much happier now that he is recirculated...

Hey im not trying to hijjack this thread or anything. But I posted a thread that is somewhat related to this one. And you mentioned that your friend eventually recirculated his blitz bov. But how??

seehttp://www.nissaninfiniticlub....48902

[cory2081]

most people have the mafs before the compressor or on the intake. any turbo kits made for the ka have it before the compressor.

Ok. Well my next question would be "Where do most people locate their BOV on a 240??" I have my own theory to BOV placement. Some people put them on the hot pipe, some on the intercooler, some on the cold pipe. IMHO Placing the BOV as close to the throttle body is best (I KNOW I'll get arguments about this one) I'm not trying to jack this thread, just trying to offer a possible way of having a non-recirc BOV without the problems of the car running overly rich, or cutting off. It works (at least it did on my GN). It's just my opinion and I have good reason for it so don't flame me...lol.

[Structure240sx]

seems alot of people have it on their coldpipes thats where mine is. but i have heard alot about puttin the bov very close the the throttle body. on the coldpipe also makes it cleaner to recirculate since its about 2-3' closer to the intake

[Trppen37]

if ur running a non-recirc BOV for our KA's especially if your running a KA24E and a Hacked MAF uhave to have the MAF on the pressure side of the turbo after the IC and before the TB..the BOV will be close to the turbo just like a stock SR setup..

[hokiruu]

uh, it's easier to recirc. on the HOTPIPE. The SR has a intake port on the rubber inlet hose, and that is ideal place to plumb it. I am surprised nobody has mentioned the Greddy Type S! It sounds incredible vented and recirculated, and is easier to recirculate than the SSQV. Just search for Nils' thread "pics of my car". He has a video posted somewhere in the 15 or so pages, ans once you hear it, you will be sold! Or go to http://www.blowoffvalves.com and hear the clip. so sharp and agressive! another cool but different sounding BOV are the Blitz Super and Dual Drive BOVs. the old supers are really lound but sometimes have been known to leak. the new ones though, are supposedly awesome working and i know they sound really cool. Dry, flash of rushing air, like in Gran Tourismo Rally Imprezas

[cory2081]

I like the SSQV because of the way it is designed. There is almost noway that it can leak. It's very LOUD, my friends could here mine when they were a few cars up from me on the road and had their windows up. Of course, the BOV was facing straight forward on my GN, so, that probably made a difference to. BOV are just cool.....and the SSQV was much needed to save the TE-61 that I had on that car.