Newbie installed ****** Bov But not Blow off

noipip · 02-24-2011, 05:58 PM

Hi,

I just purchased a used ****** Bov Kit and i did installed today. But i don't know what happen for the bov cannot blow off. Here is the pictures and video that please let me know if i did something wrong. Thank You

Small Caps for the factory diverter valves #1
[IMG]http://i577.photobucket.com/albums/ss216/noipip/BMW%20335i%20******%20Bov/IMG_2678.jpg[/IMG]

Small Caps for the factory diverter valves #2 &
the Chagre Pipe connection
[IMG]http://i577.photobucket.com/albums/ss216/noipip/BMW%20335i%20******%20Bov/IMG_2674.jpg[/IMG]

[IMG]http://i577.photobucket.com/albums/ss216/noipip/BMW%20335i%20******%20Bov/IMG_2675.jpg[/IMG]

The hose in front of the bov connect to the Throttle body
[IMG]http://i577.photobucket.com/albums/ss216/noipip/BMW%20335i%20******%20Bov/IMG_2676.jpg[/IMG]

Throttle Body connections
[IMG]http://i577.photobucket.com/albums/ss216/noipip/BMW%20335i%20******%20Bov/IMG_2677.jpg[/IMG]

Here is the video for the sound.

Here is the Video for testing the bov's air blow..

New Vaccum Connections from the back of the bov to the Intake Manifold. But tried after 5 mins, Check Engine Light comeup. I don't think it is correct connections.
[IMG]http://i577.photobucket.com/albums/ss216/noipip/BMW%20335i%20******%20Bov/IMG_0342.jpg[/IMG]

Thank You and please help.

Ghines1279 · 02-24-2011, 06:08 PM

it builds boost under load. let it warm up to op temp first,Drive it down the block, and if its making a WOOP WOOP WOOOP WOOP, its installed wrong, but it looks fine. I thought i did it wrong too until i took her for a spin.

zeenon53 · 02-24-2011, 06:19 PM

The car is still under vacuum when at idle. You need to put a load on her to build boost. Go for a drive.

bimmertt · 02-24-2011, 07:02 PM

Quote:

Originally Posted by zeenon53

The car is still under vacuum when at idle. You need to put a load on her to build boost. Go for a drive.

This makes sense, but can you explain all the videos on YouTube showing bovs blowing off with just revs in neutral like the OP was doing?

noipip · 02-24-2011, 07:19 PM

Oh... So should i go drive for a couple miles on it to warm up? Let me try it out. Thank You!

Ghines1279 · 02-24-2011, 08:33 PM

let it warm up first, it keeps boost down til it gets to operating temp, those vids are of cars warmed up and mine only goes off when its reved high like 6-7 k, 5k it wont do it.

Ghines1279 · 02-24-2011, 08:34 PM

plus it sounds waaaayyyyy louder when your driving

cstmx_ryder · 02-24-2011, 09:22 PM

False....you should still hear it when you rev it when it's NOT warmed up.....it just won't sound as loud. BOV will blow off whenever there's boost, whether it's stock boost or tuned boost......

Also, when idling, your BOV should be open and blowing out air. Put a piece of paper in front of the horn and see if it's blowing.....

bimmertt · 02-24-2011, 09:33 PM

there seems to be a lot of inconsistent information

Ghines1279 · 02-24-2011, 09:45 PM

yeah, I have an HKS SSQV, it doesnt open at idle by design. when the car is at idle, it doesnt build boost, it builds boost under load. if you have a boost gauge you can also see that when the car is cold, it wont build as much boost as it will when its warmed up.

noipip · 02-24-2011, 10:00 PM

I just drive a 10 miles on it but still have no any sound. What should I do? The seller told me to Swarp the vaccum line to the back. Is it right or not?

noipip · 02-24-2011, 10:06 PM

Actualy I don't have any jb3/4 or any jb+ to boost my car. Everything under stock except dci. Is it I don't have too much boost on it? Or it just can blow louder when I go to 6k-7k? Thank you guys.

Ghines1279 · 02-24-2011, 10:37 PM

if its hooked up wrong you should atleast hear the turbo spool when reving, and then when you let go of the gas, you should hear compressor surge (which is bad). look up vids of compressor surge so you know what it sounds like, all you had to do was unplug the T vaccum splitter from the original Diverter valves and connect it to the BOV. At idle i have to rev it up to 6-7k rpms to hear it at all, but driving i just have to get on it a little bit. Even when im on stock map, it doesnt take much for it to open up.

Bodie217 · 02-24-2011, 10:43 PM

if you purchased it 2nd hand and it was shipped, it's possible that the box was dropped in transit and the spring is jammed shut. slim chance, but I've seen it happen.

Bakeme521 · 02-24-2011, 11:05 PM

Just watched the video, there is def a very faint compressor surge sound when you let off, which is bad. Not a ton of boost on a stock set up so its not going to sounds like a supra's compressor surge.

First off let me start by saying you need to tidy up you connections to the IC piping, that is pretty lousy.

2. No, do not switch the hoses it is correctly installed.

3. Have you messed with the nut or screw on top of the BOV? If not take the valve off and see if you can open it with your fingers.

noipip · 02-24-2011, 11:08 PM

Thx Ghines1279. But i am directly connected the vaccum line from the bov to the intake manifold. I didn't use the T Splitter to connect anything. And also i did drove my car for atleast 20mins. But still have no any sounds come up. The Seller sugest me to switch the Vaccum line to the back of the bov. And i was tried it for an 5 mins. The Check Engine light come up. WTF is going on.....?? Somebody knows?

Updated photos and video for testing the bov. Please help.

Bakeme521 · 02-24-2011, 11:10 PM

Quote:

Originally Posted by noipip

Thx Ghines1279. But i am directly connected the vaccum line from the bov to the intake manifold. I didn't use the T Splitter to connect anything. And also i did drove my car for atleast 20mins. But still have no any sounds come up. The Seller sugest me to switch the Vaccum line to the back of the bov. And i was tried it for an 5 mins. The Check Engine light come up. WTF is going on.....?? Somebody knows?

Updated photos and video for testing the bov. Please help.

The check engine light will come on b/c the boost is not releasing so the computer is reading a major pressure spike. Do not drive the car until this is resolved or you may risk cracking piping somewhere.

noipip · 02-24-2011, 11:22 PM

Thx Bakeme521, After the Check Engine on. I was pooled over and turn it off. Switch back the Vaccum line to front of the bov. Then it ran just fine.

Bakeme521 · 02-24-2011, 11:34 PM

Quote:

Originally Posted by noipip

Thx Bakeme521, After the Check Engine on. I was pooled over and turn it off. Switch back the Vaccum line to front of the bov. Then it ran just fine.

I think it is releasing pressure just a very minimal amount. If I were you I would take the valve off the chargepipe(2 allen key bolts) and see if you can push the valve down with your thumbs. You should be able to move it with some force but if it terribly difficult to move then either a) there is something defective with the BOV or b) the spring is too right so it takes too much force to make it open.

noipip · 02-24-2011, 11:43 PM

Quote:

Originally Posted by Bakeme521

I think it is releasing pressure just a very minimal amount. If I were you I would take the valve off the chargepipe(2 allen key bolts) and see if you can push the valve down with your thumbs. You should be able to move it with some force but if it terribly difficult to move then either a) there is something defective with the BOV or b) the spring is too right so it takes too much force to make it open.

So... Do you mean is the bov's problems and is not my cars problems right? The video is coming up. Please take a look and give me some suggestions. Thank You!

Here is the link of the bov.

Bakeme521 · 02-25-2011, 01:37 AM

Quote:

Originally Posted by noipip

So... Do you mean is the bov's problems and is not my cars problems right? The video is coming up. Please take a look and give me some suggestions. Thank You!

Here is the link of the bov.

What the hell? It is sucking air in?? I honestly am not sure of what is happening right here. The only thing I can think is the BOV is actually stuck open and the air being sucked in by the engine is creating vacuum so it pulls air in thru the BOV and then when you let off the butterfly on the throttle body closes creating internal pressure in the chargepipe b/c the turbos are still spooling and air blows out. If you look into the BOV where the air comes out, what does it look like? can you possibly get a picture of that?

335xiRT1 · 02-25-2011, 03:53 AM

The front of the BOV is suppose to get hooked up to stock vacuum line.

Your suppose to leave the rear DV in cap off the bottom of it and hook the rear vacuum line on BOV to the top of the stock DV.

To be honest I bought this setup to try it out cause of the price. I like the chargepipe but the BOV sucks.
Doesn't hold boost even when properly setup. I bought a synapse with the proper flange for this CP and now it works great.

02-24-2011, 05:58 PM	#1
noipip E90 325I / E92 335I 22 Rep 155 Posts Drives: E92 335I Join Date: Dec 2008 Location: CA iTrader: (11)	Newbie installed ** Bov But not Blow off Hi, I just purchased a used **** Bov Kit and i did installed today. But i don't know what happen for the bov cannot blow off. Here is the pictures and video that please let me know if i did something wrong. Thank You Small Caps for the factory diverter valves #1 [IMG]http://i577.photobucket.com/albums/ss216/noipip/BMW%20335i%20**%20Bov/IMG_2678.jpg[/IMG] Small Caps for the factory diverter valves #2 & the Chagre Pipe connection [IMG]http://i577.photobucket.com/albums/ss216/noipip/BMW%20335i%20**%20Bov/IMG_2674.jpg[/IMG] [IMG]http://i577.photobucket.com/albums/ss216/noipip/BMW%20335i%20**%20Bov/IMG_2675.jpg[/IMG] The hose in front of the bov connect to the Throttle body [IMG]http://i577.photobucket.com/albums/ss216/noipip/BMW%20335i%20**%20Bov/IMG_2676.jpg[/IMG] Throttle Body connections [IMG]http://i577.photobucket.com/albums/ss216/noipip/BMW%20335i%20**%20Bov/IMG_2677.jpg[/IMG] Here is the video for the sound. Here is the Video for testing the bov's air blow.. New Vaccum Connections from the back of the bov to the Intake Manifold. But tried after 5 mins, Check Engine Light comeup. I don't think it is correct connections. [IMG]http://i577.photobucket.com/albums/ss216/noipip/BMW%20335i%20***%20Bov/IMG_0342.jpg[/IMG] Thank You and please help. Last edited by noipip; 02-24-2011 at 11:45 PM..*
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02-24-2011, 06:19 PM	#3
zeenon53 Major 39 Rep 1,153 Posts Drives: BMW Join Date: Apr 2010 Location: obx iTrader: (3)	The car is still under vacuum when at idle. You need to put a load on her to build boost. Go for a drive.
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02-24-2011, 07:19 PM	#5
noipip E90 325I / E92 335I 22 Rep 155 Posts Drives: E92 335I Join Date: Dec 2008 Location: CA iTrader: (11)	Oh... So should i go drive for a couple miles on it to warm up? Let me try it out. Thank You!
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02-24-2011, 08:33 PM	#6
Ghines1279 Second Lieutenant 7 Rep 238 Posts Drives: F30 335i Join Date: Mar 2009 Location: SAN DIEGO! iTrader: (5) Garage List 2007 e92 335i [0.00]	let it warm up first, it keeps boost down til it gets to operating temp, those vids are of cars warmed up and mine only goes off when its reved high like 6-7 k, 5k it wont do it.
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02-24-2011, 08:34 PM	#7
Ghines1279 Second Lieutenant 7 Rep 238 Posts Drives: F30 335i Join Date: Mar 2009 Location: SAN DIEGO! iTrader: (5) Garage List 2007 e92 335i [0.00]	plus it sounds waaaayyyyy louder when your driving
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02-24-2011, 06:08 PM	#2
Ghines1279 Second Lieutenant 7 Rep 238 Posts Drives: F30 335i Join Date: Mar 2009 Location: SAN DIEGO! iTrader: (5) Garage List 2007 e92 335i [0.00]	it builds boost under load. let it warm up to op temp first,Drive it down the block, and if its making a WOOP WOOP WOOOP WOOP, its installed wrong, but it looks fine. I thought i did it wrong too until i took her for a spin.
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02-24-2011, 09:22 PM	#8
cstmx_ryder Colonel 165 Rep 2,875 Posts Drives: A metal box with a roundel Join Date: Jul 2007 Location: Portland, OR iTrader: (2)	False....you should still hear it when you rev it when it's NOT warmed up.....it just won't sound as loud. BOV will blow off whenever there's boost, whether it's stock boost or tuned boost...... Also, when idling, your BOV should be open and blowing out air. Put a piece of paper in front of the horn and see if it's blowing..... __________________ '08 AW E90 335i PROcede V5 \| BMS DCI \| RR DPs \| ETS FMIC \| FORGE DVs \| Stett CP \| Vanguard \| PSS10
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02-24-2011, 09:33 PM	#9
bimmertt Lieutenant Colonel 93 Rep 1,794 Posts Drives: 2007 e92 335i Join Date: Nov 2008 Location: Earth iTrader: (7)	there seems to be a lot of inconsistent information
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02-24-2011, 09:45 PM	#10
Ghines1279 Second Lieutenant 7 Rep 238 Posts Drives: F30 335i Join Date: Mar 2009 Location: SAN DIEGO! iTrader: (5) Garage List 2007 e92 335i [0.00]	yeah, I have an HKS SSQV, it doesnt open at idle by design. when the car is at idle, it doesnt build boost, it builds boost under load. if you have a boost gauge you can also see that when the car is cold, it wont build as much boost as it will when its warmed up.
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02-24-2011, 10:00 PM	#11
noipip E90 325I / E92 335I 22 Rep 155 Posts Drives: E92 335I Join Date: Dec 2008 Location: CA iTrader: (11)	I just drive a 10 miles on it but still have no any sound. What should I do? The seller told me to Swarp the vaccum line to the back. Is it right or not?
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02-24-2011, 10:06 PM	#12
noipip E90 325I / E92 335I 22 Rep 155 Posts Drives: E92 335I Join Date: Dec 2008 Location: CA iTrader: (11)	Actualy I don't have any jb3/4 or any jb+ to boost my car. Everything under stock except dci. Is it I don't have too much boost on it? Or it just can blow louder when I go to 6k-7k? Thank you guys.
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02-24-2011, 10:37 PM	#13
Ghines1279 Second Lieutenant 7 Rep 238 Posts Drives: F30 335i Join Date: Mar 2009 Location: SAN DIEGO! iTrader: (5) Garage List 2007 e92 335i [0.00]	if its hooked up wrong you should atleast hear the turbo spool when reving, and then when you let go of the gas, you should hear compressor surge (which is bad). look up vids of compressor surge so you know what it sounds like, all you had to do was unplug the T vaccum splitter from the original Diverter valves and connect it to the BOV. At idle i have to rev it up to 6-7k rpms to hear it at all, but driving i just have to get on it a little bit. Even when im on stock map, it doesnt take much for it to open up.
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02-24-2011, 10:43 PM	#14
Bodie217 Second Lieutenant 92 Rep 252 Posts Drives: '10 135i, '14 WRX, '14 Sequoia Join Date: Dec 2008 Location: Denver, CO iTrader: (1)	if you purchased it 2nd hand and it was shipped, it's possible that the box was dropped in transit and the spring is jammed shut. slim chance, but I've seen it happen. __________________ -2010 BMW 135i - Titanium Silver - Procede v3/ETS 5" IC/AR Catless DP>N54mid>Berk Race/BMS OCC/VRSF Turbo Inlets & CP/SP rotors/Pagid RS29/APEX ARC8/Ohlins DFV/M3 Full Suspension and Bushings/Wavetrac LSD // 395rwhp/469rwtq on 91oct -2014 Toyota Sequoia Platinum - Overlander
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02-24-2011, 11:05 PM	#15
Bakeme521 Some say... 239 Rep 4,296 Posts Drives: Fresh Join Date: Mar 2010 Location: Baton Rouge n NOLA iTrader: (12) Garage List 2007 BMW 335i [8.24]	Just watched the video, there is def a very faint compressor surge sound when you let off, which is bad. Not a ton of boost on a stock set up so its not going to sounds like a supra's compressor surge. First off let me start by saying you need to tidy up you connections to the IC piping, that is pretty lousy. 2. No, do not switch the hoses it is correctly installed. 3. Have you messed with the nut or screw on top of the BOV? If not take the valve off and see if you can open it with your fingers. __________________ I have exhaust and an intake...
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02-24-2011, 11:08 PM	#16
noipip E90 325I / E92 335I 22 Rep 155 Posts Drives: E92 335I Join Date: Dec 2008 Location: CA iTrader: (11)	Thx Ghines1279. But i am directly connected the vaccum line from the bov to the intake manifold. I didn't use the T Splitter to connect anything. And also i did drove my car for atleast 20mins. But still have no any sounds come up. The Seller sugest me to switch the Vaccum line to the back of the bov. And i was tried it for an 5 mins. The Check Engine light come up. WTF is going on.....?? Somebody knows? Updated photos and video for testing the bov. Please help.
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02-24-2011, 11:22 PM	#18
noipip E90 325I / E92 335I 22 Rep 155 Posts Drives: E92 335I Join Date: Dec 2008 Location: CA iTrader: (11)	Thx Bakeme521, After the Check Engine on. I was pooled over and turn it off. Switch back the Vaccum line to front of the bov. Then it ran just fine.
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02-25-2011, 03:53 AM	#22
335xiRT1 Captain 47 Rep 693 Posts Drives: 2007 335i Join Date: Oct 2008 Location: long island iTrader: (14)	The front of the BOV is suppose to get hooked up to stock vacuum line. Your suppose to leave the rear DV in cap off the bottom of it and hook the rear vacuum line on BOV to the top of the stock DV. To be honest I bought this setup to try it out cause of the price. I like the chargepipe but the BOV sucks. Doesn't hold boost even when properly setup. I bought a synapse with the proper flange for this CP and now it works great.
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