Blow off valves?

[Nismogirlie]

Ok guys I'm lookin for a better blow off valve to put in the 240. it has a red top sr20det. So far i have hks,greddy, and blitz in mind. let me know what you all think!

[Jeff240sx]

HKS Super Sequential BOV. A lot of people think its the best as far as performance and reaction time. If you want cool sound... get somethin else. The SSQV sounds like a turkey when the small valve opens, then a WHOOSH when the big one goes.
-Jeff

[FRpilot]

i was going to get the blitz super sound bov but everyone says it sucks.. i dont remember why exactly, but in a lot of threads, ppl say their blitz bov leaks and its due to the spring inside the bov. you might need to search some more to find the specific details. this is just off the top of my head from what i faintly remember. i like how the looks were designed on the blitz and would buy it until i heard horror stories from ppl. now im lost.

also, the greddy bov is good as far as functionality but ppl say its not loud or aggressive enough.

HKS SSQV Bov is a nice piece. its loud and it functional. i hear only good things about them and the design looks nice to a lot of ppl. im not into it though so i dont intend on getting the hks but i ppl recommend it.

there are many bovs out on the market. in fact, i think scc just did a bov review in the june issue. check it out if its still on the newstands.

[89s132b]

What about TurboXS?
Any opinions?

[Jeff240sx]

Originally posted by 89s132b
What about TurboXS?
Any opinions?

Loud and cheap. I believe that you get what you pay for.
-Jeff

[transient]

The June 2003 volume of Sport Compact Car had a really good article on bovs. Unfortunately it's not online... It should still be on the shelves though, and I would definatly reccomend checking it out. Also, if you haven't gotten a copy already, i'd suggest buying a copy of maximum boost by corky bell. Very good info.

[FlyingChicken]

one day i was driving.. my friend was driving behind me with a vw 1.8t equipped with hks bov.. it sounded like he was chasing me with a laser gun

[nrcooled]

I have the HKS SQV (not the highspeed SSQV) and I really like it. I had the Blitz SS and it leaked like a mofo. I was always stalling and the car would misfire all the time. If I came off throttle too sharply it would stall if I got on the clutch and didn't shift fast enough it would stall. It sucked big time!

The HKS is much quieter and I haven't stalled since I have put it in. Now I have to change my plugs since I was running so rich from the MAF getting false readings from the BOV leaking the air out.

Word to the wise DON'T BUY IT It is for cars w/ MAPS not MAFS

[FRpilot]

Originally posted by Jeff240sx
Loud and cheap. I believe that you get what you pay for.
-Jeff

aren't turbo xs type h-rfl bovs $180 msrp? thats not cheap for a bov. i mean, blitz bovs cost maybe $100 more but those bovs have gotten bad reviews. if you mean cheap turbo xs bov, you probably mean the turbo xs type s bov since its msrp is $130. what i consider a cheap bov would more likely be something like a DSM stock PLASTIC bov but turbo xs bovs are definitely not cheap POSs.

[FRpilot]

nrcooled or anybody, i got a quick newbie question about MAFs and MAPs. i forgot what MAPs stands for and how they work.

i know mafs are mass air flow sensors and they work when air passes through it and it gets metered so your fuel management system can differentiate how much fuel will flow to the chamber for a nice a/f ratio.

whats a map though? mass air p____? i just cant remember what it stands for and how it works, although i think i knew at one time.. :confused:

[mrmephistopheles]

manifold absolute pressure.

[fooddude]

My Blitz DD sux ***. It leaks(even when FULLY tightened), gets stuck open sometimes, the threads strip easily...it's just a POS. I'll take an SSQV anyday over any BOV.

[nrcooled]

I've got an extra HKS SQV if anyone is interested. Not really trying hard to sell it so that's why this isn't in FS section

[transient]

I'm amazed at the difference in reviews by the people here and the review given by SCC. Their test showed pretty bad performance for the SSQ bov. I wonder if they recieved a faulty unit??

[nrcooled]

Originally posted by transient
I'm amazed at the difference in reviews by the people here and the review given by SCC. Their test showed pretty bad performance for the SSQ bov. I wonder if they recieved a faulty unit??

After I put the HKS on immediately my car ran better, boosted harder, boosted quicker, and felt stronger. What upsets me is I dyno'd my car w/ the Blitz on. I'm thinking I would have had a much better powerband to base my future tuning on. Not to mention a couple of extra ponies.

I can't really remember the results of the test:confused: Nor can I find the May issue.
Which one finished best?

[Nismogirlie]

Which Sport compact car issue was it?? as in which month.someone PLEEEEEEEEAAAAAAAASSSSSSEEEEEEEEE let me know!

[KiDyNomiTe]

Originally posted by Nismogirlie
Which Sport compact car issue was it?? as in which month.someone PLEEEEEEEEAAAAAAAASSSSSSEEEEEEEEE let me know!

Originally posted by transient
The June 2003 volume of Sport Compact Car

[Nismogirlie]

HeHe thanks guys!!!!!!! I bought it today!!!!

[Kreator]

Originally posted by Nismogirlie
HeHe thanks guys!!!!!!! I bought it today!!!!

Hey, could you scan the article and maybe post the pics in the FAQ section? I'll host them for everyone. Think it might be a good idea

As for the bovs, not really sure which one as i'm confused to hell after seeing foxcolt and nrcooled at the last meet.... before then i got a good response from uiuc240 about the bov super sound, and was pretty fixed in mind about hks SQV being a crappy one since it was plastic (plastic -> melting -> leakage). Then i see Bakari who tells me the super sound is a pos, and Jed who's saying his sqv works just fine.... dunnow whom to trust anymore :( guess i'll have to find out when i put my blitz on.

[fooddude]

The older HKS SQV were plastic and junk from what i've heard. But the newer ones, SSQV, are stupendous!

[West]

I would stick with a HKS SSQV, Greddy Type-S, and maybe Apexi. They are both Push/Pull design, more effeciency and less leaks. I had the SSQV before and liked it, but im not a fan of it since you cant route it back into your intake very ez. This time around I will be getting the Greddy Type S. On top of that the sounds was kinda anoying but scared the hell out of people, the Type S sounds sooooooo nice with high boost.

[transient]

well, i'm hoping that it will show up on sport compact car after the next magazine comes out... If it doesn't, i'll definately scan it.

[Jim96SC2]

Originally posted by WeST
I would stick with a HKS SSQV, Greddy Type-S, and maybe Apexi. They are both Push/Pull design, more effeciency and less leaks. I had the SSQV before and liked it, but im not a fan of it since you cant route it back into your intake very ez. This time around I will be getting the Greddy Type S. On top of that the sounds was kinda anoying but scared the hell out of people, the Type S sounds sooooooo nice with high boost.

I have my SSQV routed back in. Works well, doesn't appear to be leaking. All you hear with the re-route is a small HISSSSS on shifts. To reroute the SSQV you just buy an aluminum adater for like $10 and put it in the housing.

[transient]

Just out of curiosity, those of you who are recommending the HKS SSQV, how are you calculating the efficiency of that valve?

[Jim96SC2]

Originally posted by transient
Just out of curiosity, those of you who are recommending the HKS SSQV, how are you calculating the efficiency of that valve?

By lots of people not having problems! Seriously if you look at the SCC tests almost all BOVS works pretty much within spec. I saw how mine worked on there. A bit sketchy on the curve, also had good response.

[RUTH'LESSDET]

HKS ALL THE WAY....To my understanding they are one of the best, if not the best. They dont sound as nice as the greddy (aka turkey) but they respond very nicely and look good too. If you want a nice sounding BOV go for the old school HKS bov is sounds like a turkey too

http://www.imagestation.com/picture/sraid63/p3a01d2efe8b65f240bb6aedd67c95920/fc0f0aa1.jpg

[kazuo]

I have the Blitz Super Sound on my SR. Runs fine.

No leaks, no stalling, no nada. It never EVER dies EVER (not even at stoplights). And no, its not recirculated. Full atmopshere.

And I bought it used to boot. Don't believe everything you hear.

Personally I like the "Sheepdog" BOV (although the sound is somewhat "wussy"; my friend has it on her SR), and of course the Blitz Super Sound.

The APEX'i Twin Chamber BOV is cool and has a decent sound, check it out.

APEX'i and Blitz BOV can be had used for less than a bill. Sheepdog BOVs are "rare" and thus expensive (unless you know someone in Japan :)).

Good luck

[transient]

You really do want to get a valve that will allow you to rerout the air back into the system though. An atmospheric BOV on a MAFS equipped car is just ridiculous.

[Jeff240sx]

Originally posted by transient
You really do want to get a valve that will allow you to rerout the air back into the system though. An atmospheric BOV on a MAFS equipped car is just ridiculous.

For the HKS SSQV, you can buy a $12 attachment that allows a hose to hook up to it.
Also, there is a way around the stumble/stall associated with the atmospheric BOVs. The Apexi S-AFC has a function on it that allows the user to compensate for it, by reducing the fuel supplied during a deceleration. It overrides the MAF signal, and reduces the ammount of metered air the ECU sees, leaning out the mixture, and lessening the stumble.
-Jeff

[TheTicTac]

I agree with Kazuo, either Apexi, or Blitz.

I have the Blitz DD on my car and it works great no leaks and not rec'd. I plan on getting an safc, has anyone played with the newer safc's yet?

[fiebru1119]

What is this turkey sound you all keep talking about? Is it the high pitched screetch or what?

[Jeff240sx]

Originally posted by fiebru1119
What is this turkey sound you all keep talking about? Is it the high pitched screetch or what?

No. It sounds like a turkey call for a split second while the small valve opens on the SSQV.
-Jeff

[transient]

Sure there might be a way around the stumbling problem, but what's the point when you can just reroute it?

[West]

You could always take the guess work out of what your buying and listen to allot of BOV's here.

http://members.cox.net/935motorsports/bovmultimedia.htm

[sLiDewAys]

I too own a Blitz Super Sount BOV, got it used off of ebay for 120.00 shipped. not too shabby if you ask me,i am running it on my s13 fastback w/ca18det, have not tested it yet besides on my frends sr and it didnt work due to the spring being WAYY TOO TIGHT lol but after a few minuts of tuning we got a nice PHSSSSST out of it! didnt drive it just mainly neutral gear tuning. so yeah, i hope for the best + art (kazuo) found a way to recirc it, so that shall be great as well


brandon

[Steeles]

I too own a Blitz Super Sount BOV, got it used off of ebay for 120.00 shipped. not too shabby if you ask me,i am running it on my s13 fastback w/ca18det, have not tested it yet besides on my frends sr and it didnt work due to the spring being WAYY TOO TIGHT lol but after a few minuts of tuning we got a nice PHSSSSST out of it! didnt drive it just mainly neutral gear tuning. so yeah, i hope for the best + art (kazuo) found a way to recirc it, so that shall be great as well


brandon

ok from one Brandon to another... this threads a year old. did we REALLY need to bring it back for this? :nono:

[Grandpa]

Sure there might be a way around the stumbling problem, but what's the point when you can just reroute it?

Rerouting doesn't always work, at least it didn't for my KA-T. BUT, It's still always my first suggestion.

I'm running the HKS SSQV, and I always recommend it to KA-T guys. IMO, It's the best bov for low boost applications. Sure, the GReddy Type R and Tial bov's are both better, but neither open under 7psi. You can't even recirc. the Tial. So, IMO, if you run 12psi or less and daily drive your car, I'd go with the HKS.

SR guys have more options since it's so much easier for them to run higher boost. I'd go with a recirc.'d Type R for maf'd SRs or the Tial for guys running a standalone.

-john

[KevDog240]

what about the bov on a budget? you know the 1st gen eclipse bov... $40

[Demik]

bosh BOV :naughty:

[NZO]

Shhhhhhhh, dont tell people silly!

[bkfill]

whats bosh bov? :/

i heard you could vicegrip the 1st gen dsm bovs so it holds more boost :x
and the mr2 bov is like 40$ also its good for 350hp

[sr240mike]

Its Bosch recirculating valve. You crush the tops on those so you can run more boost.

[S14DB]

Anyone run a SARD?

[Demik]

Anyone run a SARD?


i do i do r2d2 baby

[180fan]

r2d2 through type

[HyperTek]

my friend has the sard r2d2 on his fc. Rotary + BOV sound= sex.

ummm, ok so I was gonna run the HKS SSQBOV on my sr but routing the MAF in line before the throttle body after the intercooler, and powered by a safc, so that would eliminate any rich problems huh?

[Bbandit]

i have turboXS recirc valve. its a pretty nice little bov. no complaints so far.

do they sell the recirc. flange for HKS SSQV?

[Demik]

my friend has the sard r2d2 on his fc. Rotary + BOV sound= sex.




r2d2 + t28 + 18 pounds driving into my high school parking lot = hot passionate sex..

[[GoaTSLonG]]

I run a turbo xs RFL and it sounds awesome, doesn't leak and yea this is on my MAFS SR with a gt30r

[aa87]

Im gonna be in the market for a new blowoff valve, im getting a car with a completely stock blacktop motor. Any ideas,because the guy says the stock has a leaky blow off valve. Is the SSQV still the best?

[sr240mike]

It sure sounds the best in my opinion and it will not leak under higher boost. I have mine vented to atmosphere and although it runs rich for a second I have no stalling problems.

[xnissans14x]

i have turboXS recirc valve. its a pretty nice little bov. no complaints so far.

do they sell the recirc. flange for HKS SSQV?

Yes they do. Found a website that sells it:

http://www.i-m-racing.com/ntnsracing/ssrecfit.html

[F3600]

my 20 $ DSM bov is on my CA ... its loud and sounds good, doesnt leak too

[AlexAtPerformanceNissan]

What's not fair is that the HKS Standard bov never gets any love.... I have always loved the sound, but most people don't know about how to make it work....it takes a greddy type-s flange and a HKS standard bypass valve.... Has a really mean sounding PSHH sound....Especially on a KAT at 10 psi...
:wtc: It's a beautiful thing....

-Alex B.

[ftrs13]

f3600, I have one as well, and its silent. how did you get yours loud?? does it vent to the atmo, and how much boost are you running?

[F3600]

its vented in atmosphere , im running 7 psi stock setup !
the wooshh is pretty damn loud... will try to record it tomorow

[ftrs13]

doesnt it leak at idle, i havent de-recirculated mine to try it, I was going to but havent gotten the chance. plus are you running blow through?

[Muzzy]

apexi!!!
very quiet!!
compressor surge is louder then the bov...usually.
its the only bov i think that sounds like its releasing compressed air

[F3600]

I dont know what you mean by blow trough can yo elaborate plz :) and it doesnt feel like leaking at idle. I dont feel any air coming out of the bov at idle... The bov is working at very low throttle like 1200 rpm and i hear it fluttering and whistling

[F3600]

ftrs13, send me your email so i can send you my bov sound on my ca

[Demik]

apexi!!!
very quiet!!
compressor surge is louder then the bov...usually.
its the only bov i think that sounds like its releasing compressed air



sard foo

The message you have entered is too short. Please lengthen your message to at least 10 characters.

[Muzzy]

..ok...i'll say its the only bov i think that sounds like its releasing compressed air..that i have heard. never heard a sard...i did want want though lol

[bkfill]

don't turkeys go gobble gobble?

[Muzzy]

yea...like the HKS BOV

[rossfashow]

i think this thread should be revived again so noobs dont have to start new threads on what bov is the best.