BOV and reliability. Options?

WRichieX · 06-13-2014, 07:00 AM

So just installed a dci yesterday and I realized how much I missed the sound of turbo spool. Need more boost! Next step a tune, most likely a jb4. However, it seems that our stock CP is garbage and should be replaced. With some of these deals these vendors are having with fmic and cp combo, I figure might as well take advantage. I thought I was set on just forge dv's and over the whole "pshh" sound, but after hearing the turbo spool, I realized I'm not. It woke the kid in me

So l've decided I want the loudest bov there is.

However, need something reliable at the same time. The tial seems popular but is a little too reserved for me. I used to run an hks on my wrx and liked the whistle sound, but i remember people used to call the sound "cute". I like the synapse, but doesn't seem like any vendors carry anymore. Reliability issue? How does the AA bov sound like. reliability? Only heard on video. Maybe someone that has heard in real life can write up a comparison. So what other options do I have? I'm not looking to do any custom work so something that has an accompanying CP.

derryck · 06-13-2014, 07:19 AM

I have the AA CP on my E92 335i and our 07 E90 and it's very audible but not very loud. I'm not very familiar with other BOVs...I typically run Tials and I believe they're louder than my AA BOVs.

WRichieX · 06-13-2014, 07:54 AM

Quote:

Originally Posted by derryck

I have the AA CP on my E92 335i and our 07 E90 and it's very audible but not very loud. I'm not very familiar with other BOVs...I typically run Tials and I believe they're louder than my AA BOVs.

Ah good to know. How much psi are you pushing out. Any problems with leaks?

derryck · 06-13-2014, 07:59 AM

I'm peaking around 19psi on both cars...both are FBO and RBs are going in the E92 this week so that will probably go up a tad. I have HKS BOVs on my 300 and they are much much louder but it has big turbos and 2.5 intake/charge piping so there is considerably more flow.

Focus · 06-13-2014, 08:02 AM

I've had that HKS for about 3 years now. around 16 psi. Has performed flawless and never skipped a beat once. I even bought it used off of someone that had it for two years.

Transport3r · 06-13-2014, 08:21 AM

I've had a synapse valve for about a year, works great and the sound is perfect IMO. I love the response this valve has, makes the throttle noticeably snappier. I've read about the helper spring breaking in them, but mines been good so far, knock on wood lol. Even then, you can just take the helper spring out and tighten the main one a smidge.

If you want LOUD get the HKS no question. But there's a reason 650+ hp cars run 2 of them, they don't flow as well as the rest. All that noise is the sound of air struggling to get out. A perfect bov in a perfect world would be dead quiet with near infinite flow, and and instantaneous response.

iturbo_bmw · 06-13-2014, 12:50 PM

i originally wanted the synapse but some vendors stopped selling them because they were having problems so i ended up with the hks. its been cool though sometimes i get some flutter. and i never saw the point of getting a quiet bov like the tial. if u want quiet why not get diverter valves?

Ingeniator · 06-13-2014, 12:53 PM

Turbosmart supersonic BOV are the loudest I've heard in person. They are also extremely reliable though I perfer the race port line. I will likely run a raceport on my 135 car. I currently run a Tial on my daily as @tiago@VRSF gave me a good package deal.

Jeff@TopGearSolutions · 06-13-2014, 01:27 PM

HKS would be louder then Tial.

Most retailers/manufacturers have been having problems with Synapse so we stopped offering them.

WRichieX · 06-13-2014, 01:49 PM

Quote:

Originally Posted by Jeff@TopGearSolutions

HKS would be louder then Tial.

Most retailers/manufacturers have been having problems with Synapse so we stopped offering them.

Jeff, what's your take on the turbosmart? Louder than hks? Reliable? Love to vendor input.

vivanapoli806 · 06-13-2014, 02:21 PM

I have tial and dci on my 135. I'm local near ohare if u wanna hear it. My intakes are louder than the tail almost when I let off the throttle

Give_Em_The_DD · 06-13-2014, 02:47 PM

Have an e92 with ER/Tial BOV, in Plainfield area if you are close

WRichieX · 06-13-2014, 02:59 PM

Quote:

Originally Posted by vivanapoli806

I have tial and dci on my 135. I'm local near ohare if u wanna hear it. My intakes are louder than the tail almost when I let off the throttle

I'm in Des Plaines, I'd love to hear it. Just let me know when you're free.

Quote:

Originally Posted by Give_Em_The_DD

Have an e92 with ER/Tial BOV, in Plainfield area if you are close

Plainfield is a bit far but I appreciate it bro.

vivanapoli806 · 06-13-2014, 03:34 PM

I'm in Rosemont right by river and Higgins. We can set something up this weekend

06-13-2014, 07:00 AM	#1
WRichieX Major 80 Rep 1,076 Posts Drives: 07 335i e93 6MT Join Date: May 2013 Location: Chicago iTrader: (0) Garage List 2007 BMW 335i E93 [0.00]	BOV and reliability. Options? So just installed a dci yesterday and I realized how much I missed the sound of turbo spool. Need more boost! Next step a tune, most likely a jb4. However, it seems that our stock CP is garbage and should be replaced. With some of these deals these vendors are having with fmic and cp combo, I figure might as well take advantage. I thought I was set on just forge dv's and over the whole "pshh" sound, but after hearing the turbo spool, I realized I'm not. It woke the kid in me So l've decided I want the loudest bov there is. However, need something reliable at the same time. The tial seems popular but is a little too reserved for me. I used to run an hks on my wrx and liked the whistle sound, but i remember people used to call the sound "cute". I like the synapse, but doesn't seem like any vendors carry anymore. Reliability issue? How does the AA bov sound like. reliability? Only heard on video. Maybe someone that has heard in real life can write up a comparison. So what other options do I have? I'm not looking to do any custom work so something that has an accompanying CP. __________________ 07 BMW 335i E93 6MT (Praying neighborhood doesn't get flooded...again) 04 Infiniti G35 Coupe 6MT (Flooded) 08 Audi TT 2.0T DSG (Flooded) 03 Subaru WRX 5MT (Flooded)
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06-13-2014, 07:19 AM	#2
derryck Captain 57 Rep 879 Posts Drives: 2009 335 Coupe Join Date: Apr 2007 Location: Florida iTrader: (4)	I have the AA CP on my E92 335i and our 07 E90 and it's very audible but not very loud. I'm not very familiar with other BOVs...I typically run Tials and I believe they're louder than my AA BOVs.
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06-13-2014, 07:59 AM	#4
derryck Captain 57 Rep 879 Posts Drives: 2009 335 Coupe Join Date: Apr 2007 Location: Florida iTrader: (4)	I'm peaking around 19psi on both cars...both are FBO and RBs are going in the E92 this week so that will probably go up a tad. I have HKS BOVs on my 300 and they are much much louder but it has big turbos and 2.5 intake/charge piping so there is considerably more flow.
	Appreciate 0 Quote

06-13-2014, 08:02 AM	#5
Focus Captain 68 Rep 942 Posts Drives: N/A Join Date: Apr 2010 Location: Jersey iTrader: (2)	I've had that HKS for about 3 years now. around 16 psi. Has performed flawless and never skipped a beat once. I even bought it used off of someone that had it for two years. __________________
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06-13-2014, 08:21 AM	#6
Transport3r Major 86 Rep 1,262 Posts Drives: 2011 N55 E90 Join Date: Sep 2010 Location: Melbourne, FL iTrader: (4)	I've had a synapse valve for about a year, works great and the sound is perfect IMO. I love the response this valve has, makes the throttle noticeably snappier. I've read about the helper spring breaking in them, but mines been good so far, knock on wood lol. Even then, you can just take the helper spring out and tighten the main one a smidge. If you want LOUD get the HKS no question. But there's a reason 650+ hp cars run 2 of them, they don't flow as well as the rest. All that noise is the sound of air struggling to get out. A perfect bov in a perfect world would be dead quiet with near infinite flow, and and instantaneous response.
	Appreciate 0 Quote

06-13-2014, 12:50 PM	#7
iturbo_bmw Major 84 Rep 1,099 Posts Drives: 335i, 530i Join Date: Oct 2012 Location: San Jose iTrader: (0)	i originally wanted the synapse but some vendors stopped selling them because they were having problems so i ended up with the hks. its been cool though sometimes i get some flutter. and i never saw the point of getting a quiet bov like the tial. if u want quiet why not get diverter valves?
	Appreciate 0 Quote

06-13-2014, 12:53 PM	#8
Ingeniator Major 34 Rep 1,093 Posts Drives: 07 335XI(90) 09 135I(82) Join Date: Nov 2013 Location: Fort Mac, Alberta iTrader: (1)	Turbosmart supersonic BOV are the loudest I've heard in person. They are also extremely reliable though I perfer the race port line. I will likely run a raceport on my 135 car. I currently run a Tial on my daily as @tiago@VRSF gave me a good package deal. __________________ 07 335XI (A008006) 6AT ~94K miles JB4 G5 ISO VSRF DP's 09 135I M (VK80379) 6MT. Race Project car. 1) Install Cobb/piggyback? and Motiv 600 Kit[HTA3076R w/ tial .82] 2) JRZ or Moton suspension. 3) Build high flow intake manifold with multi-port fuel and relocate OFH 4) Build full cage 5) Complete staged twin setup with HTA4205R [w/Tial 1.16] 6) Complete dry sump system
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06-13-2014, 01:27 PM	#9
Jeff@TopGearSolutions 3441 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	HKS would be louder then Tial. Most retailers/manufacturers have been having problems with Synapse so we stopped offering them.
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06-13-2014, 02:21 PM	#11
vivanapoli806 Captain 88 Rep 824 Posts Drives: 2012 535i Xdrive Msport Join Date: Apr 2013 Location: Chicago Burbs iTrader: (2)	I have tial and dci on my 135. I'm local near ohare if u wanna hear it. My intakes are louder than the tail almost when I let off the throttle
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06-13-2014, 02:47 PM	#12
Give_Em_The_DD Banned 258 Rep 1,084 Posts Drives: 2010 black 335xi coupe Join Date: Sep 2013 Location: IL iTrader: (2)	Have an e92 with ER/Tial BOV, in Plainfield area if you are close
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06-13-2014, 03:34 PM	#14
vivanapoli806 Captain 88 Rep 824 Posts Drives: 2012 535i Xdrive Msport Join Date: Apr 2013 Location: Chicago Burbs iTrader: (2)	I'm in Rosemont right by river and Higgins. We can set something up this weekend
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