HKS SSVQ vs. BLITZ BOV

[Jayteezzy]

I'm about to buy a BOV and I got my eyes on the HKS one I just hear good things about both and was just wondering if people have advice on what's better or sounds better I guess.

[Options13]

well i have an hks bov second gen and it flutters at low boost, but other than that it is good.. it MAY just be my vacuum source, not too sure, but i've read about other people having the same problem!

[Om1kron]

I would probably go with that new greddy RZ blow off valve.

[yt35]

hks sounds kool, blitz sounds like a beast
youtube it! thats how i chose mine :)

[Jayteezzy]

haha I kno I was about to pick up a hks today then I you tuned both of them now it's harder to decide haha

[Slammed Assassin]

just get both JT were getting em for cheap!!
then give me one! lol

[Mosaic]

I have a few related questions that are up for discussion::D

1) When u guys think about buying a BOV is it just about the noise it makes, or about the performance improvement it delivers?

2) If you had access to real dyno data about blow off performance and tuning would that be the deciding factor even if the engine bay install is (stealth) not as snazzy looking or sounding?

Possible Smart BOV/Bypass features:

3) What about being able to have a TUNED blow off preset switch on your dashboard, so u can decide if u want a super sensitive time attack dash (from a traffic light?) Or just street/traffic performance with less sensitivity. Would such a feature be a 'must have'?

4) Would the ability to double duty your blow off as an emergency boost relief in the event of an over boost spike /creep be valuable to you? With a visible warning that it has done so.

5) How about the BOV releasing boost in the event of a LEAN boost condition to prevent your engine becoming a grenade. Is that a nice feature?

How about all these features at a competitive price to a regular quality BOV/CBV? Does that sound good?:wavey:

[Sileighty_85]

Neither Greddy Type-R

Best and Only BOV you should own

[rc1honda]

I have a few related questions that are up for discussion::D

1) When u guys think about buying a BOV is it just about the noise it makes, or about the performance improvement it delivers?

2) If you had access to real dyno data about blow off performance and tuning would that be the deciding factor even if the engine bay install is (stealth) not as snazzy looking or sounding?

Possible Smart BOV/Bypass features:

3) What about being able to have a TUNED blow off preset switch on your dashboard, so u can decide if u want a super sensitive time attack dash (from a traffic light?) Or just street/traffic performance with less sensitivity. Would such a feature be a 'must have'?

4) Would the ability to double duty your blow off as an emergency boost relief in the event of an over boost spike /creep be valuable to you? With a visible warning that it has done so.

5) How about the BOV releasing boost in the event of a LEAN boost condition to prevent your engine becoming a grenade. Is that a nice feature?

How about all these features at a competitive price to a regular quality BOV/CBV? Does that sound good?:wavey:

What exactly do you think a blow off valve is? The BOV is there to prevent compressor surge. Thats about it. I mean sure you can argue that a recirulated system might have faster spool time but the results would be arbituary at best.

All the BOV does is help to lengthen the life of the turbo. The Pissshhh sound doesn't add 1000whp.


Buy whatever one you think sounds better,. Or just recircualte it. Personal preference not a major performance issue.

And I'll stick to EMS tuning not BOV tuning. Thats what comptuers are for. Last thing i wanna do is wire up a Eletric BOV lol. I think it would look like a huge rediculous box on the hotpipe LMAO.

[slider2828]

Sorry I love my HKS SSQV... love that flutter at low boost.... You just gotta tune it... I think keeping it closed at low boost gives you better response... Mine is recirculated...

Blitz, I hate that POS.... it uses 2 screws to hold it in place and paper thin gasket.... its junk.... + the two mating surfaces are flat? WTF... asking for leaks...

HKS is a C clip all around and it sits "into" the flange... love it...

No exp with greddy though, but I love their ext wastegates hahaha....

[Soup Nazi]

Neither Greddy Type-R

Best and Only BOV you should own


Even on low boost apps?

[Mosaic]

What exactly do you think a blow off valve is? The BOV is there to prevent compressor surge. Thats about it. I mean sure you can argue that a recirulated system might have faster spool time but the results would be arbituary at best.

All the BOV does is help to lengthen the life of the turbo. The Pissshhh sound doesn't add 1000whp.


Buy whatever one you think sounds better,. Or just recircualte it. Personal preference not a major performance issue.

And I'll stick to EMS tuning not BOV tuning. Thats what comptuers are for. Last thing i wanna do is wire up a Eletric BOV lol. I think it would look like a huge rediculous box on the hotpipe LMAO.



Gee dude, u managed to deliver a rant and NOT answer a SINGLE question. Especially that last bit about EMS tuning.....most good BOV offer tuning in the engine bay, the ems doesn't do it. I just asked if u would like tuning ability on your dashboard. An electric ems controlled BOV will outperform a mechanical one anyday. Perhaps u should go back to having mech. carbs, mech brakes, mech steering, mech fuel pump.:rl:

[rc1honda]

Gee dude, u managed to deliver a rant and NOT answer a SINGLE question. .:rl:

Funny when i read it back it looks like I answerwed everyone of your questions. And the BOV tuning you talking about is not tuning at all. It's just adjusting to proper spring pressure for optimal use of the BOV. Has really nothing to do with throttle response, or power. Unless of course it is faulty or not adjusted properly. And as far as eletrical outperforming mechanical i would beg to differ. There is so much more room for error with a eletric anything. Some things need to meachanical for optimal use. So when a circuit fires and your car shuts off during a drag pull or drift, where is all the postive pressure going to go? Not out the eletric BOV, it's going back to the turbo and thats how shit breaks.

As far as using the BOV as a "oh shit" backup mechanism i guess it could be useful, but not practical. Thats what computers are for, and knock sensors. Like i said.

[Jayteezzy]

haha lots of good info guy thanks alot so I'm still kinda leaning over te hks at the moment but I did a little research on that greddy type r and haven't found one negative feed back from that

[Mosaic]

Funny when i read it back it looks like I answerwed everyone of your questions. And the BOV tuning you talking about is not tuning at all. It's just adjusting to proper spring pressure for optimal use of the BOV. Has really nothing to do with throttle response, or power. Unless of course it is faulty or not adjusted properly. And as far as eletrical outperforming mechanical i would beg to differ. There is so much more room for error with a eletric anything. Some things need to meachanical for optimal use. So when a circuit fires and your car shuts off during a drag pull or drift, where is all the postive pressure going to go? Not out the eletric BOV, it's going back to the turbo and thats how shit breaks.

As far as using the BOV as a "oh shit" backup mechanism i guess it could be useful, but not practical. Thats what computers are for, and knock sensors. Like i said.

You say there's room for error with electric anything compared to mechanical, then why do u use electronic fuel injection? Or an electronic EMS? Seems you want it both ways.

Anyway, it is virtually useless explaining to people who can't understand so I won't.
What I will do is publish my dyno and digital storage scope test data on a Subaru STI with a new electronic CBV system vs its mechanical CBV when I launch the product.
Can't argue with the facts dude. A mech. BOV can't open faster than a 20 millisecond solenoid valve. That's TWENTY times as fast as an eyeblink.

[sliptones629]

I know that this is about HKS and blitz, but what makes them better than a Tial or Greddy or any other? I ask because I am shopping for one and I was believing that Tiial makes some of the best ones. At least the new Q and the 50mm sorts?

[slider2828]

Tial and Greddy is good tooo, but no experience.. HKS is good, but Blitz sucks....

[Sileighty_85]

Even on low boost apps?

Youp, I ran it on just a T28 setup for 2 years, Never had an issue, No surging and no idle problems

[limited240]

i hate the HKS bov sound. sounds pwunny

[Soup Nazi]

Youp, I ran it on just a T28 setup for 2 years, Never had an issue, No surging and no idle problems

Good to know. I just might sell the HKS for the Type R.

[Mosaic]

U guys thought abt the synchronic by Synapse engineering? Youtube it...lotsa comparisons vs HKS etc.

[slim_240]

tial 50mm ftw

[Propaganda]

Blitz, I hate that POS.... it uses 2 screws to hold it in place and paper thin gasket.... its junk.... + the two mating surfaces are flat? WTF... asking for leaks...
Throttle body has a paper gasket as does stock intake elbow

All BOVs work and do the same thing. Just buy one and be done

[Mosaic]

I disagree with that they all do the same thing. That's like saying all cars just do the same thing, buy any one. Some do certain things better than others, it pays to be a discerning buyer.

[slider2828]

Throttle body has a paper gasket as does stock intake elbow

All BOVs work and do the same thing. Just buy one and be done

Yeah but our intake is not held together by 2 8mm screws that is supposed to hold 18psi or more....FTL

[tinys s14]

tial all the wayyyyy

[!Zar!]

Current car is running a Sard r2d2 then, no bov (compressor surge), tial 40mm and, hks ssqv adjustable type.

All I was happy with and would definitely do again.

[pancakes562]

i like the blitz bov.. youtube it :)

[exciting_sedan]

Neither Greddy Type-R

Best and Only BOV you should own
yep.........

[kpc_0721]

Don't even use a bov.

Compressor surge sounds tight mane.

[1_Bad_Silvia]

hks ssqv......i was driving last time at night and this lady jumped and threw her bag on the ground cuz it was loud..haha i felt so bad

[BoostSlideWayz]

i like Blitz im just not the type of person that likes to follow the crowd.. almsot everyone i see with an after market bov its HKS. i heard blitz bov's are super loud tho.

[jackal264]

Don't even use a bov.

Compressor surge sounds tight mane.


this

i'm going on 3 years without one

[twopointo]

get my blitz bro haha

[Propaganda]

Yeah but our intake is not held together by 2 8mm screws that is supposed to hold 18psi or more....FTL
Holds boost for me. I've done a boost leak check on that area of the BOV and it is solid.

[mad-ass]

HKS SSQV, not SSVQ

Anyways, I got HKS SSQV on my S13SR and I got mine because I don't have to adjust anything on it what so ever, it does it's own adjusting up to 20+ psi i think? not sure of the limit, but for my application, it'll self adjust and that's 1 less thing I got to worry about every time.

[slider2828]

Holds boost for me. I've done a boost leak check on that area of the BOV and it is solid.

I agree... it works for some people and doesn't for others... That is all... I just didn't like the design of it....

[Mosaic]

y'know, it's remarkable the amount of decision making that goes into buying these BOV and its more about looks and sound than it is performance.

Just goes to show how ricer marketing affects a buyer's perception of what's good to use.

Very few BOV makers if any at all actually publish performance data. They use words like more,bigger,faster,better. No hard data at all, unlike turbo or engine makers who publish real performance graphs etc.

Then there are the claims that are polar opposites, the Turbosmart site claims surge with a slow BOV will damage your turbo etc. GFB says that's really a miniscule effect, a BOV should be purchased to hold charge pressure in the intercooler for performance on clutch out. Surge is of no consequence.

It goes without saying that turbosmart is good at venting surge and GFB is good at holding pressure.

Ya gotta wonder who is correct and who is taking your money for selling you marketing and not a truly functional device.