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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > DIY Guides > DIY - Dual BOV Low Cost Setup



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      01-07-2012, 01:07 AM   #23
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Nice alternative. Good price points. Excellent write-up...and picture.

Do you have any suggestions/links to other BOVs from eBay?
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      01-11-2012, 03:18 PM   #24
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So waiting for video
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      01-11-2012, 07:45 PM   #25
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about BOV i think i will try to order this one: http://www.ebay.com/itm/390336269668?item=390336269668
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      01-19-2012, 12:07 AM   #26
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Just did mine and it was easy. Great DIY write up. One question though, where is the sensitive screw again. Is it the middle one? Will loosing it make it splash more? Please let me know since I am very new to this. Thanks
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      01-22-2012, 03:14 PM   #27
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Yes on the top in the middle, and i want to ask you, maybe you can make video how it sounds?

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Originally Posted by Bmwnsxr View Post
Just did mine and it was easy. Great DIY write up. One question though, where is the sensitive screw again. Is it the middle one? Will loosing it make it splash more? Please let me know since I am very new to this. Thanks
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      01-24-2012, 10:05 PM   #28
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Great write up! I will try this mod myself.
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      01-26-2012, 07:10 PM   #29
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so still no video ?
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      02-06-2012, 02:00 AM   #30
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And where do you get the adapter so i can mount the BOV?
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      02-07-2012, 04:06 PM   #31
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Adapter for greddy style bov: http://www.atpturbo.com/mm5/merchant...Category_Code=
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      02-10-2012, 02:15 PM   #32
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This sounds like an easy/cheap enough mod to at least try out. Thanks OP!!!
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      02-16-2012, 11:39 PM   #33
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I just did this set up and it sounds great! only thing is I'm getting a high pitched squeal after the woosh sound that wasn't there before. is that normal? help me out.
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      02-17-2012, 12:06 AM   #34
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post a video of the sound.. we still havent got anyone whos done this to post how it sounds!!!
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      02-17-2012, 12:13 AM   #35
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will do. Ill get a video up tmrw.
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      02-17-2012, 12:14 AM   #36
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thanks man! Cant wait to hear it! what do you think of it so far?
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      02-17-2012, 12:23 AM   #37
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it sounds great but theres a squeal after the woosh sound when i rev it. I don't know what it is
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      02-17-2012, 08:53 AM   #38
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subscribed. I may consider giving this a go actually. It seems easily reversible. And using your stock charge pipe is a big bonus!!! Cheers
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      02-17-2012, 06:11 PM   #39
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Quote:
Originally Posted by Amxi316 View Post
it sounds great but theres a squeal after the woosh sound when i rev it. I don't know what it is
Responded to you PM for everyone else try adjusting the spring rate with the screw on top of the BOV I had the same issue after taking them off and putting them back once. I ultimately just went for these bovs that solved the issue and never got the little squeal again. I updated it on the DIY here is a link to the once I got:

http://www.ebay.com/itm/BMW-MINI-ALU...#ht_3098wt_979

Im going to see my friend today which has my setup now since I went with ETS CP and Synapse BOV because my wack 2010 stock cp cracked. Going to try to remember to make a video of the sound. He has no problems with squeals or anything sometimes I do miss the sound of these at very low rpms it use to kind of putter sounded sick. But Synapse is pretty legit too very loud.
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      02-18-2012, 06:04 PM   #40
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I just did this install. Everything works great. I also had a squeal. I took the BOVs off and sprayed them with WD40 and wiped them clean. It has worked great so far.
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      02-18-2012, 06:12 PM   #41
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I used these adapters instead




[http://www.ebay.com/itm/GReddy-BOV-M...c62eff871#ht_2

I was able to get the pair for $31.90 shipped. They work great at less than 1/2 the price.
The whole setup was under $100 with the plugs and clamps.

Last edited by Ridehard335; 02-19-2012 at 12:06 PM.
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      02-19-2012, 11:41 PM   #42
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Quote:
Originally Posted by E9TWO View Post
Responded to you PM for everyone else try adjusting the spring rate with the screw on top of the BOV I had the same issue after taking them off and putting them back once. I ultimately just went for these bovs that solved the issue and never got the little squeal again. I updated it on the DIY here is a link to the once I got:

http://www.ebay.com/itm/BMW-MINI-ALU...#ht_3098wt_979

Im going to see my friend today which has my setup now since I went with ETS CP and Synapse BOV because my wack 2010 stock cp cracked. Going to try to remember to make a video of the sound. He has no problems with squeals or anything sometimes I do miss the sound of these at very low rpms it use to kind of putter sounded sick. But Synapse is pretty legit too very loud.
Do these BOVs have adjustable springs or tension? Just read of some bov inducing compressor surge and needing spring adjustment so wondering if these can be adjusted.
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      02-20-2012, 12:52 AM   #43
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can someone get a vid of the sound?!
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      03-13-2012, 04:08 AM   #44
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the squel is common in the greddy knockoffs or type bov. the flap isnt closing all of the way and when the motor goes back to idle its still slightly open letting air pass through. which in turn causes your the high pitched noise . i had this problem with my greddy with my old 240. if you watch the outlet on the bov when you rev the motor by hand you will see what im talking about. you can try adjusting the tightness or loosness with the screw on top to see if it will close all they way. though i would recommend a tial bov or even a precision bov. some of the better products on the turbo market . i would also recommend getting right of the stock air pipe for a hard pipe. again less rescriction with air more of a free flowing design. plus it looks better than having nice bov's on a peice of hard plastic.

i hope this has helped , im not new to the turbo world just crossed over from a built
sr20det motor. and hopefully i can help some more while im learning this new platform.
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