BOV, whats good for SC?
BOV, whats good for SC?
Well the time has come for me to get a real BOV. I want one that will be safe, meaning no compressor surge. I did some searching and lots of reading and I’m still a bit confused. I’m on a 9lb pulley, and I want something that will sound nice.
I looked at the Tial BOV but read on here that this was not recommended for low boost will this be ok for my 9lb of boost? I will up the boost to 12lbs in the future. Is this the BOV for me?
My friend has a Turbo XS BOV on his SC maxima but he’s running 6lbs of boost only, would this BOV be ok for my setup?
Another friend with a SC maxima has the blitz BOV and says it’s the best.
Someone recommended a turbo smart BOV but that’s like $280.
I’m not trying to break the bank here either. I would like to keep things affordable. So all you SC guys what BOV would you recommend?
I looked at the Tial BOV but read on here that this was not recommended for low boost will this be ok for my 9lb of boost? I will up the boost to 12lbs in the future. Is this the BOV for me?
My friend has a Turbo XS BOV on his SC maxima but he’s running 6lbs of boost only, would this BOV be ok for my setup?
Another friend with a SC maxima has the blitz BOV and says it’s the best.
Someone recommended a turbo smart BOV but that’s like $280.
I’m not trying to break the bank here either. I would like to keep things affordable. So all you SC guys what BOV would you recommend?
Some people like Y2KevSE used a Blitz BOV. Seems to be popular with superchargers. However, I don't really reccomend a BOV made for turbo setups, since even at idle, your SC blower will still be spinning unlike turbo.
100% correct this is why im confused in kinda leaning towards a turbo xs BOV but the flange setup is soo small (type H flange)
HKS SSQV great bov. Now one question, do you need a bov or a recirculating valve. If your valve is before the maf then yes you can run a bov with no ill effects but if it is in fact after the maf then you may run into stall isuses. I am running a greddy rs and it is great for low boost. Also your s/c is spinng but yu arent making enough boost at idle to worry about.
The HKS SSQV never opens at idle. Its design doesn't allow for it at all. Which is great for turbo, but bad for SC.
The vortech BOVs are already set up for SC and the TiAl BOV can flow a lot of air, but they tend to be big and expensive.
The vortech BOVs are already set up for SC and the TiAl BOV can flow a lot of air, but they tend to be big and expensive.
on s/c setups. that was all i was saying. By design they are made not to open under boost but they will open to vent. they close once it makes boost as its a pull type.
I have an SSQV, but it's for turbo. I suggest a Vortech Mondo or a Blitz.
HKS SSQV great bov. Now one question, do you need a bov or a recirculating valve. If your valve is before the maf then yes you can run a bov with no ill effects but if it is in fact after the maf then you may run into stall isuses. I am running a greddy rs and it is great for low boost. Also your s/c is spinng but yu arent making enough boost at idle to worry about.
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almost all BOV's are designed for intended use on a turbocharger. your best bet is a vortech, if not, you can use Tial 50mm since its made for turbo and sc aplications. get the 7 psi spring from www.streetunit.com i got mine there and no problems. moves plenty of air and sounds niceee
almost all BOV's are designed for intended use on a turbocharger. your best bet is a vortech, if not, you can use Tial 50mm since its made for turbo and sc aplications. get the 7 psi spring from www.streetunit.com i got mine there and no problems. moves plenty of air and sounds niceee
Last I spoke to Stephen Max, he told he too had a bit of surge with the Mondo but it went completly away when he did the FMIC.
Anyone else have surge with there Mondos and if not what PSI are you at?
Last edited by Flava_24/7; Nov 22, 2007 at 08:31 AM.
I loved it when I had it. When I shifted above 3k rpm, everyone around me would just stare at the car LOL. They're like "WTF, is that a boosted Maxima?!?"
Bishnu, I would say go with either the Blitz, the Mondo or the TiAL.
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stalkers you dont even know keep track of our mods list better than we do, LOL.
Yes, the SSQV blows off nicely on a turbo setup, but don't expect it to sound the same with a SC. I personally had it for two weeks, and it didn't blow off at all, sound wise. Only once in a while would it make a sound, and that was when it was freezing cold out. I do have the SSQV on my 93.5 twin turbo Supra, and it blows off nicely and functions like it should.
Performance wise, the SSQV sucked too. Didn't vent at idle, causing gurgling sounds in the charge pipe (compressor surge) and caused my car to stall as I approached a stop. Lame.
Function>fashion (sound)
Performance wise, the SSQV sucked too. Didn't vent at idle, causing gurgling sounds in the charge pipe (compressor surge) and caused my car to stall as I approached a stop. Lame.
Function>fashion (sound)
Yes, the SSQV blows off nicely on a turbo setup, but don't expect it to sound the same with a SC. I personally had it for two weeks, and it didn't blow off at all, sound wise. Only once in a while would it make a sound, and that was when it was freezing cold out. I do have the SSQV on my 93.5 twin turbo Supra, and it blows off nicely and functions like it should.
Performance wise, the SSQV sucked too. Didn't vent at idle, causing gurgling sounds in the charge pipe (compressor surge) and caused my car to stall as I approached a stop. Lame.
Function>fashion (sound)
Performance wise, the SSQV sucked too. Didn't vent at idle, causing gurgling sounds in the charge pipe (compressor surge) and caused my car to stall as I approached a stop. Lame.
Function>fashion (sound)
http://forums.maxima.org/showpost.ph...60&postcount=3
http://forums.maxima.org/showpost.ph...1&postcount=18
I30tMikeD even contacted HKS about this BOV and they even stated that its not designed to vent at idle and cannot/shouldnt be adjusted to do so.
http://forums.maxima.org/showpost.ph...3&postcount=11
Just because a ton of guys are using it, doesnt mean its the most practical setup. Many choose the sound over function, thats even obvious in this thread.
But also just because a few have had problems that doesnt mean its bad. Maybe for the Max is not good but to say its not good for a certain setup is just not right. Thats all i am sayin. And wasnt mike turboed?
HKS states that its not designed to vent at idle, so if you know a SC setup that doesnt need to vent at idle then yeah, it can be used for that setup but as far as I know they do. So yeah I would say the SSQV isnt the most ideal BOV for a SC setup. You can believe what you wish, but when the manufacturer states
As long as it's not leaking at idle, your fine
In that post, the HKS rep also states
Some vehicles have more vacuum than others. If high enough, it is possible for a vehicle's vacuum at idle to accidentally pull the valve open, causing a vacuum leak.It is for this reason that HKS employees an adjustment nut on the back of the valve to allow the spring tension to be adjusted, ensuring that the valve is closed and not leaking while the vehicle is idling
Yes he was, he wasnt saying he was having issues. Mike just posted about how that BOV isnt meant to vent at idle.
HKS states that its not designed to vent at idle, so if you know a SC setup that doesnt need to vent at idle then yeah, it can be used for that setup but as far as I know they do. So yeah I would say the SSQV isnt the most ideal BOV for a SC setup. You can believe what you wish, but when the manufacturer states
I would believe that its not designed to vent at idle.
In that post, the HKS rep also states
HKS states that its not designed to vent at idle, so if you know a SC setup that doesnt need to vent at idle then yeah, it can be used for that setup but as far as I know they do. So yeah I would say the SSQV isnt the most ideal BOV for a SC setup. You can believe what you wish, but when the manufacturer states
I would believe that its not designed to vent at idle.
In that post, the HKS rep also states
He wasnt the only one who had issues,..
http://forums.maxima.org/showpost.ph...60&postcount=3
http://forums.maxima.org/showpost.ph...1&postcount=18
I30tMikeD even contacted HKS about this BOV and they even stated that its not designed to vent at idle and cannot/shouldnt be adjusted to do so.
http://forums.maxima.org/showpost.ph...3&postcount=11
Just because a ton of guys are using it, doesnt mean its the most practical setup. Many choose the sound over function, thats even obvious in this thread.
http://forums.maxima.org/showpost.ph...60&postcount=3
http://forums.maxima.org/showpost.ph...1&postcount=18
I30tMikeD even contacted HKS about this BOV and they even stated that its not designed to vent at idle and cannot/shouldnt be adjusted to do so.
http://forums.maxima.org/showpost.ph...3&postcount=11
Just because a ton of guys are using it, doesnt mean its the most practical setup. Many choose the sound over function, thats even obvious in this thread.

Additionally, it's more than a few that have had problems with the SSQV on our centrifugal SC's.... Those of us that have been around for 3+ years have read all about it numerous times. FWIW, my unit was bought brand spankin' new from an Authorized HKS dealer and was genuine, not an ebay knockoff. Had I searched the org before buying it, I would have learned about it and not bought it. I based my decision solely on it's great performance on my TT Supra.





