"Ebay" dual BOV's, $30 dollars all in

j1gilles · 08-02-2014, 12:20 PM

So after issues with my "aftermarket" diverter valves having constant leaks and their inability to reliably hold greater than 16 pounds of boost I ripped them off the other day... I had a pair of cheap (30 dollars combined) Ebay BOV's laying on my workbench, they're from a twin turbo fox body project that has stalled. I decided to borrow them for the xi... They're made of billet aluminum and brass, with an internal spring. The spec sheet that came with the valves (tons of misspelled words) claimed their operational range to be from 4-25 psi and if an increase in holding psi was needed all you have to do is get a washer and install it above the spring!

I guess they don't believe in providing extra springs? I tested both valves with my Mityvac prior to installing them and they both seemed to work just fine. The install took 20 minutes and I plugged the intake diverter inlets with rubber stoppers that fit flush. Took the car for a quick ride and the valves seem to be functioning great! They do not have an obnoxious blow-off sound and hold perfectly up to a already tested 19 psi. I have not felt any compressor surge and they look decent under the hood. Hopefully they hold up for more than a year! Just wanted to share, take care...

Eat.Sleep.Race · 08-03-2014, 09:12 PM

Nice!! Always good to find a cheap working part!!

mike082802 · 05-30-2015, 08:34 AM

how are these holding up?

j1gilles · 06-02-2015, 09:28 PM

Quote:

Originally Posted by mike082802

how are these holding up?

Still on the care and working great! I cannot believe I have paid hundreds of dollars for BOV's in the past...

csu87 · 06-02-2015, 09:44 PM

Quote:

Originally Posted by j1gilles

Still on the care and working great! I cannot believe I have paid hundreds of dollars for BOV's in the past...

got lucky. Ive had cheap ebay BOVs fail. Seems to be hit and miss since they have no quality control it seems.

Billit335 · 06-02-2015, 11:12 PM

Linky ??

Stucks · 06-03-2015, 07:03 AM

Quote:

Originally Posted by Billit335

Linky ??

These look like what the op is using...

http://www.ebay.com/itm/1-25mm-Inlet...bf4f58&vxp=mtr

expressfish · 06-03-2015, 12:34 PM

Im assuming that this may or may not blow oil in engine compartment ?

csu87 · 06-03-2015, 01:23 PM

all depends on if you have blow by and/or an OCC

j1gilles · 06-07-2015, 04:30 PM

Quote:

Originally Posted by Stucks

Quote:

Originally Posted by Billit335

Linky ??

These look like what the op is using...

http://www.ebay.com/itm/1-25mm-Inlet...bf4f58&vxp=mtr

Those are them...

j1gilles · 06-07-2015, 04:32 PM

Quote:

Originally Posted by expressfish

Im assuming that this may or may not blow oil in engine compartment ?

I do not seem to get much oil blown into the engine compartment but I clean my engine compartment almost every time I clean my car 😁

j1gilles · 06-07-2015, 04:33 PM

Quote:

Originally Posted by csu87

Quote:

Originally Posted by j1gilles

Still on the care and working great! I cannot believe I have paid hundreds of dollars for BOV's in the past...

got lucky. Ive had cheap ebay BOVs fail. Seems to be hit and miss since they have no quality control it seems.

These are pretty simple (as most BOV's) are and I'm fairly confident they will last.

ahwest · 07-12-2015, 10:25 AM

are they still holding up fine? btw how can you tell when the DVs are leaking? what symptoms? any video or sound clip of how do they sound?

N0Chill 335i · 07-12-2015, 12:36 PM

Any sound clips for these?

Snypa · 07-12-2015, 08:25 PM

Quote:

Originally Posted by ahwest

are they still holding up fine? btw how can you tell when the DVs are leaking? what symptoms? any video or sound clip of how do they sound?

I'm interested in finding this out as well. Apart from loud woooosh in 1st and 2nd gear I want to think my stocks are still holding up.

Mayuri Krab · 07-13-2015, 08:20 AM

Quote:

Originally Posted by j1gilles

So after issues with my "aftermarket" diverter valves having constant leaks and their inability to reliably hold greater than 16 pounds of boost I ripped them off the other day...

What brand were the "aftermarket" DVs?

PM me if you want

j1gilles · 08-13-2015, 09:10 PM

They aren't super loud but you can for sure hear them inside the cabin. They are holding up perfectly and I actually just installed some on a another forum members car last week. I'm not sure what "brand" they are...

j1gilles · 08-13-2015, 09:12 PM

Quote:

Originally Posted by ahwest

are they still holding up fine? btw how can you tell when the DVs are leaking? what symptoms? any video or sound clip of how do they sound?

I was having boost fluctuations and I tracked it down to my diverter valves. They only way to really tell would be to run a log.

Levanime · 08-14-2015, 05:51 AM

hah.. they look exactly same as mine, that i got from the guy producing them locally

btw mine works perfectly!

almcbs · 08-14-2015, 09:37 AM

It's always great finding cheap parts that actually work great lol

johny · 08-14-2015, 06:29 PM

if i get a pair do i need to separately buy the hoses ?

Raptor04 · 08-14-2015, 07:36 PM

I installed these a few ago. They work fine, but I had to cut the springs as they were too stuff. I'm at 6500 feet altitude though which may contribute to the reason they needed to be cut.

08-02-2014, 12:20 PM	#1
j1gilles Captain 51 Rep 719 Posts Drives: 2009 335xi Join Date: Feb 2013 Location: Chicago iTrader: (0)	"Ebay" dual BOV's, $30 dollars all in So after issues with my "aftermarket" diverter valves having constant leaks and their inability to reliably hold greater than 16 pounds of boost I ripped them off the other day... I had a pair of cheap (30 dollars combined) Ebay BOV's laying on my workbench, they're from a twin turbo fox body project that has stalled. I decided to borrow them for the xi... They're made of billet aluminum and brass, with an internal spring. The spec sheet that came with the valves (tons of misspelled words) claimed their operational range to be from 4-25 psi and if an increase in holding psi was needed all you have to do is get a washer and install it above the spring! I guess they don't believe in providing extra springs? I tested both valves with my Mityvac prior to installing them and they both seemed to work just fine. The install took 20 minutes and I plugged the intake diverter inlets with rubber stoppers that fit flush. Took the car for a quick ride and the valves seem to be functioning great! They do not have an obnoxious blow-off sound and hold perfectly up to a already tested 19 psi. I have not felt any compressor surge and they look decent under the hood. Hopefully they hold up for more than a year! Just wanted to share, take care... Attached Images __________________ ASE master tech (many moons ago)335xi- JB4 G5 iso/e50 custom flash/Custom meth/Borla mids/Custom x-pipe/DCI/ER charge pipe/Dual Ebay BOV's/Alpina B3 flash/Paddle shifter retro fit
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08-03-2014, 09:12 PM	#2
Eat.Sleep.Race Out Boosting... 243 Rep 3,987 Posts Drives: F30 335i M-Sport Join Date: Feb 2014 Location: Northern VA iTrader: (7)	Nice!! Always good to find a cheap working part!! __________________ Alpine White M-Sport F30
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05-30-2015, 08:34 AM	#3
mike082802 Major 115 Rep 1,004 Posts Drives: 2010 135 Join Date: Feb 2014 Location: ny iTrader: (2)	how are these holding up?
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06-02-2015, 11:12 PM	#6
Billit335 Private First Class 35 Rep 152 Posts Drives: 07 335 Join Date: Aug 2014 Location: Texas iTrader: (1)	Linky ??
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06-03-2015, 12:34 PM	#8
expressfish Private First Class 37 Rep 175 Posts Drives: 07 E92 335I Monaco Blau Join Date: Mar 2015 Location: Texas iTrader: (1)	Im assuming that this may or may not blow oil in engine compartment ?
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06-03-2015, 01:23 PM	#9
csu87 Banned 2134 Rep 3,554 Posts Drives: 09 335xi Join Date: Nov 2013 Location: Northern Colorado iTrader: (0)	all depends on if you have blow by and/or an OCC
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07-12-2015, 10:25 AM	#13
ahwest Private 8 Rep 92 Posts Drives: E90 LCI Join Date: Dec 2011 Location: San Jose iTrader: (0)	are they still holding up fine? btw how can you tell when the DVs are leaking? what symptoms? any video or sound clip of how do they sound?
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07-12-2015, 12:36 PM	#14
N0Chill 335i Colonel 851 Rep 2,771 Posts Drives: 13' F30 335i M Sport AW Join Date: Nov 2011 Location: MD iTrader: (2)	Any sound clips for these?
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08-13-2015, 09:10 PM	#17
j1gilles Captain 51 Rep 719 Posts Drives: 2009 335xi Join Date: Feb 2013 Location: Chicago iTrader: (0)	They aren't super loud but you can for sure hear them inside the cabin. They are holding up perfectly and I actually just installed some on a another forum members car last week. I'm not sure what "brand" they are... __________________ ASE master tech (many moons ago)335xi- JB4 G5 iso/e50 custom flash/Custom meth/Borla mids/Custom x-pipe/DCI/ER charge pipe/Dual Ebay BOV's/Alpina B3 flash/Paddle shifter retro fit
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08-14-2015, 05:51 AM	#19
Levanime BimECU 193 Rep 759 Posts Drives: BMW Join Date: Dec 2014 Location: SD iTrader: (0) Garage List 2007 BMW 335 [0.00]	hah.. they look exactly same as mine, that i got from the guy producing them locally btw mine works perfectly!
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08-14-2015, 09:37 AM	#20
almcbs First Lieutenant 37 Rep 335 Posts Drives: 2009 335i & FD RX7 Join Date: Oct 2014 Location: Alexandria VA iTrader: (1)	It's always great finding cheap parts that actually work great lol
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08-14-2015, 06:29 PM	#21
johny Second Lieutenant 10 Rep 214 Posts Drives: 335i Join Date: Sep 2008 Location: Montreal,canada iTrader: (0)	if i get a pair do i need to separately buy the hoses ?
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08-14-2015, 07:36 PM	#22
Raptor04 Major 89 Rep 1,068 Posts Drives: 335xi Join Date: Aug 2010 Location: USA iTrader: (7)	I installed these a few ago. They work fine, but I had to cut the springs as they were too stuff. I'm at 6500 feet altitude though which may contribute to the reason they needed to be cut. __________________ 335xi
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