Can a turbo change the sound of a BOV? - TriStateTuners.com :: Home of Tristate Auto Enthusiast

Buster · 07-05-2007, 12:18 PM

When I had my HKS SQV on with my stock turbo it was loud and obnoxious, not with my 16g. its loud but blows off faster and then sounds like it flutters a little. Is that normal? Everything works fine, or at least feels that way.

turbo4g63 · 07-05-2007, 12:20 PM

when i put the b16g on my car it changed the way my bov sounded....before it used not be as loud and it would let off quicker....it seems like it is louder now and it sounds like it's letting out more air its hard to describe

Buster · 07-05-2007, 12:21 PM

thats kinda what im experiencing. it kinda reminds me of a supra

TrboChicsRock · 07-05-2007, 12:25 PM

If it's fluttering, it's probably compressor surge. I've never used a SQV, is it a adjustable?

Raven18940 · 07-05-2007, 12:26 PM

Yeah, the bigger turbine that has more momentum is gonna push more air out of the valve when you lift. That can definitely change the way the valve sounds.

Buster · 07-05-2007, 12:28 PM

I thought it was surge at first, but im not positive. I cant see why it would surge at all though. I used it before and it worked fine. its also only maybe 2 months old. like I said, it blows off perfectly fine.

Also the flow on my stock TDO4 was around 370. My 16g flows around 525. Could that have anything to do with it?

Buster · 07-05-2007, 12:31 PM

http://www.youtube.com/watch?v=KqLbrEPtNyw

it sounds like this w/o the crazy turbo v8 lol.

Raven18940 · 07-05-2007, 12:40 PM

Quote:

Originally Posted by Buster

I thought it was surge at first, but im not positive. I cant see why it would surge at all though. I used it before and it worked fine. its also only maybe 2 months old. like I said, it blows off perfectly fine.

Also the flow on my stock TDO4 was around 370. My 16g flows around 525. Could that have anything to do with it?

Well think about it, the bigger turbo takes longer to spin up so it's gonna take longer to spin down too. The bigger compressor also moves more air so through the combined larger momentum and greater air flow you're gonna push a lot more air out of the little valve.

http://youtube.com/watch?v=gVBBO4w78U8
Does is sound more like this or more like V8.

CarbonIS · 07-05-2007, 12:41 PM

go for a ride in matt's car now. His RS now sounds like a Sard lol

Buster · 07-05-2007, 12:43 PM

No not like that, im gonna keep looking till I find it.

Vince@R/TTuning · 07-05-2007, 12:44 PM

when you start to run more boost(volume) thats when the actual sequential part of the blow off valve works so after the large blow off happens if there is still some boost in the intake pipe it will blow off the smaller valve in the center...or so this is how i understand it to work...

Buster · 07-05-2007, 12:47 PM

thats what it feels like. my psi is still the same as it was before but like you said its the volume that changed. If I remember correctly the SQV has quite a few chambers that its regulates on its own

Buster · 07-05-2007, 12:59 PM

I watched alot of videos and all of them that had surge did it at idle. mine only does it within boost.

eviltalon · 07-05-2007, 01:10 PM

Quote:

Originally Posted by Raven18940

Well think about it, the bigger turbo takes longer to spin up so it's gonna take longer to spin down too. The bigger compressor also moves more air so through the combined larger momentum and greater air flow you're gonna push a lot more air out of the little valve.

http://youtube.com/watch?v=gVBBO4w78U8
Does is sound more like this or more like V8.

that skyline made me nut in my pants alittle

Nors · 07-05-2007, 01:25 PM

Quote:

Originally Posted by eviltalon

that skyline made me nut in my pants alittle

Yeah he is killin it on street tires.

Buster · 07-05-2007, 01:26 PM

I went back out and drove again, and it does sound alot like that. But still with the SQV noise.

freebmx444 · 07-05-2007, 01:48 PM

how much pounds are you running? the ssq has that sound up untill 8-10psi then any above that you get the real loud sound

Buster · 07-05-2007, 04:12 PM

im running 19, i put the stocker back on. I think there might be something wrong with it. Its basically all flutter, and I still have an internal wastegate, a top mount and im really not running that much boost. Im gonna give Extreme PSI a call tonight or tomorrow and see if i can have it checked. or replaced.

RayArroyo · 07-05-2007, 04:19 PM

keith lets throw it on my car , and see what it does

Buster · 07-05-2007, 04:21 PM

at this point, you can have it, im fed up with this BOV crap.

07-05-2007, 12:18 PM	#1
Buster TST Ruined My Life! Join Date: May 2005 Location: Holland Pa Member #449 My Ride: 2008 Mustang GT/CS iTrader: (3)	Can a turbo change the sound of a BOV? When I had my HKS SQV on with my stock turbo it was loud and obnoxious, not with my 16g. its loud but blows off faster and then sounds like it flutters a little. Is that normal? Everything works fine, or at least feels that way. __________________ III To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

07-05-2007, 12:20 PM	#2
turbo4g63 Tri-State Post Whore Join Date: Nov 2005 Location: near west chester Member #1057 My Ride: 98' 4runner iTrader: (0)	when i put the b16g on my car it changed the way my bov sounded....before it used not be as loud and it would let off quicker....it seems like it is louder now and it sounds like it's letting out more air its hard to describe __________________ Bill If you guys see a possum...try to kill it, it's not a pet!

07-05-2007, 12:21 PM	#3
Buster TST Ruined My Life! Join Date: May 2005 Location: Holland Pa Member #449 My Ride: 2008 Mustang GT/CS iTrader: (3)	thats kinda what im experiencing. it kinda reminds me of a supra __________________ III To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

07-05-2007, 12:25 PM	#4
TrboChicsRock Tri-State Post Whore Join Date: Feb 2005 Location: Pennsylvania Member #152 My Ride: 1998 Eclipse GSX, 2012 WRX Premium iTrader: (1)	If it's fluttering, it's probably compressor surge. I've never used a SQV, is it a adjustable? __________________ - Jessica 1998 Eclipse GSX 11.2 @ 126 To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

07-05-2007, 12:28 PM	#6
Buster TST Ruined My Life! Join Date: May 2005 Location: Holland Pa Member #449 My Ride: 2008 Mustang GT/CS iTrader: (3)	I thought it was surge at first, but im not positive. I cant see why it would surge at all though. I used it before and it worked fine. its also only maybe 2 months old. like I said, it blows off perfectly fine. Also the flow on my stock TDO4 was around 370. My 16g flows around 525. Could that have anything to do with it? __________________ III To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

07-05-2007, 12:31 PM	#7
Buster TST Ruined My Life! Join Date: May 2005 Location: Holland Pa Member #449 My Ride: 2008 Mustang GT/CS iTrader: (3)	http://www.youtube.com/watch?v=KqLbrEPtNyw it sounds like this w/o the crazy turbo v8 lol. __________________ III To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

07-05-2007, 12:43 PM	#10
Buster TST Ruined My Life! Join Date: May 2005 Location: Holland Pa Member #449 My Ride: 2008 Mustang GT/CS iTrader: (3)	No not like that, im gonna keep looking till I find it. __________________ III To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

07-05-2007, 12:44 PM	#11
Vince@R/TTuning Vendor Join Date: Mar 2007 Location: telford Pa Member #3958 My Ride: the one in the back of the shop iTrader: (2)	when you start to run more boost(volume) thats when the actual sequential part of the blow off valve works so after the large blow off happens if there is still some boost in the intake pipe it will blow off the smaller valve in the center...or so this is how i understand it to work... __________________ Philadelphia Area's Only Authorized and Factory Trained Pro Tuners for:HONDATA:UPREV:APEXI POWER FC:AEM:COBB:ECUTEK To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

07-05-2007, 12:47 PM	#12
Buster TST Ruined My Life! Join Date: May 2005 Location: Holland Pa Member #449 My Ride: 2008 Mustang GT/CS iTrader: (3)	thats what it feels like. my psi is still the same as it was before but like you said its the volume that changed. If I remember correctly the SQV has quite a few chambers that its regulates on its own __________________ III To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

07-05-2007, 12:59 PM	#13
Buster TST Ruined My Life! Join Date: May 2005 Location: Holland Pa Member #449 My Ride: 2008 Mustang GT/CS iTrader: (3)	I watched alot of videos and all of them that had surge did it at idle. mine only does it within boost. __________________ III To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

07-05-2007, 01:26 PM	#16
Buster TST Ruined My Life! Join Date: May 2005 Location: Holland Pa Member #449 My Ride: 2008 Mustang GT/CS iTrader: (3)	I went back out and drove again, and it does sound alot like that. But still with the SQV noise. __________________ III To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

07-05-2007, 01:48 PM	#17
freebmx444 Tri-State Addict Join Date: May 2006 Member #1929 iTrader: (1)	how much pounds are you running? the ssq has that sound up untill 8-10psi then any above that you get the real loud sound __________________ i work at an infiniti dealership

07-05-2007, 04:12 PM	#18
Buster TST Ruined My Life! Join Date: May 2005 Location: Holland Pa Member #449 My Ride: 2008 Mustang GT/CS iTrader: (3)	im running 19, i put the stocker back on. I think there might be something wrong with it. Its basically all flutter, and I still have an internal wastegate, a top mount and im really not running that much boost. Im gonna give Extreme PSI a call tonight or tomorrow and see if i can have it checked. or replaced. __________________ III To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

07-05-2007, 04:19 PM	#19
RayArroyo Tri-State Post Whore Join Date: Mar 2005 Location: ALBANY/PHILLY Member #205 My Ride: GTR/RSTI/MDX Sport iTrader: (3)	keith lets throw it on my car , and see what it does __________________ formerly ray@turbotek

07-05-2007, 04:21 PM	#20
Buster TST Ruined My Life! Join Date: May 2005 Location: Holland Pa Member #449 My Ride: 2008 Mustang GT/CS iTrader: (3)	at this point, you can have it, im fed up with this BOV crap. __________________ III To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

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