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..

[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 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

[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?