335 BOV installed - BMW 3-Series (E90 E92) Forum

jp335i · 10-03-2006, 11:24 PM

I know many frown upon this mod but for those of you like me who can't have a boosted car without one...

It sounds great, honestly not as loud as i prefer... sound is well insulated under the hood but it still made me smile the first time i heard it. Install is just rough right now with a temp. welded pipe in there but i should have all the new permanent pieces in by the weekend.

No performance loss. No Check Engine Light. Replaced a factory rubber pipe so it can be uninstalled and put back to stock in minutes. Factory recircultaing valves are just diabled so it vents to the atmosphere instead of veeding back into the intake.

3thirty5 · 10-03-2006, 11:29 PM

should try to post some vid clips! how much did it all cost?

nine4surfah · 10-03-2006, 11:31 PM

Yeah!!!! post a vid or sound clip! "ppppppsssssssssshhhhhhhh"

jp335i · 10-03-2006, 11:32 PM

Quote:

Originally Posted by 3thirty5

should try to post some vid clips! how much did it all cost?

Im a NEWB at posting vids... what the best way to host a video file I can create it and compress it no prob but then what?...

The BOV was $188 onlne but there are cheaper ones out there for sure. Another $100 buck in silicone couplers, clamps, alluminum pipe, flange and weld.

Driv3r · 10-03-2006, 11:35 PM

VIDEO!!! if u need help, just film and send us the video thru email and we will host it.....there are a thousand places to host vids....we have to hear this one!! the first e92 modder actually starting to cross lines...nice!

aznevoviii · 10-03-2006, 11:36 PM

so, basically you are using ONE BOV correct!? so, two factory BOV has been y-piped into single, and flange was welded on!?

c'mon man, let us know the secret!

if you have any pictures without BOV, BOV flange that you made, let us know too! thanks!!

jp335i · 10-03-2006, 11:50 PM

Quote:

Originally Posted by aznevoviii

so, basically you are using ONE BOV correct!? so, two factory BOV has been y-piped into single, and flange was welded on!?

c'mon man, let us know the secret!

if you have any pictures without BOV, BOV flange that you made, let us know too! thanks!!

The factory is one pipe coming from the drivers side of the intercooler and goes to the throttle body. In that same pipe there a two identical BOSCH redirect valves side by side that open when they see vacum and send the air back into the post airfilter pipes. One pipe is on the front of the motor feeding the forward most turbo and the other pipe runs along the firewall and feeds the other. Basically i left the factory valves in there just removed there vacume line and capped them off.

The pipe I fabricated looks awful but here is a pic of the one I purchased with the flange already installed. It is probably the best ebay find I have ever had

. They are on there all day for $10 and it is honestly 10 times better that the one I had made using the Greddy Flange that costs $25 alone. But as usual, i couldnt wait so we fabricated one and then i ordered this once I saw that it was all working as planned. I will have to cut it down to 3.5" in order to fit in the current place but that wont be a problem.

Kit523 · 10-04-2006, 12:01 AM

EWWWW i wanna hear it so badly=(!!!!!!!!!!!!!!!!!

shragon · 10-04-2006, 12:02 AM

i would do the same if i had 335i.

jp335i · 10-04-2006, 12:03 AM

I will record vid clip tomorrow at work and post if I can.

Kit523 · 10-04-2006, 12:04 AM

Quote:

Originally Posted by shragon

i would do the same if i had 335i.

I wanna do it if i got a 335i too ( 2007 jan)
but putting a BOV on the 335, a 335i will become one of those jap car WRX or STI, Evo..etc....

BenMW · 10-04-2006, 12:06 AM

Lets hear it lets hear it.!

kapoo · 10-04-2006, 01:01 AM

Nice! Just wating on ur video

cto · 10-04-2006, 03:11 AM

video clip.. if not just sound clip.. pleaseeeeeeeeeee

Dankim10 · 10-04-2006, 03:23 AM

envy those blow off!
Anyway, I wanna hear the sound!

sillygoat · 10-04-2006, 05:17 AM

does this void the warranty in any way???

rainy · 10-04-2006, 05:33 AM

like everyone else, waiting to hear how it sounds! good work by the way.

txusa03 · 10-04-2006, 08:22 AM

what is BOV, Blow Off Valves...if so, what sort of farting sound will it make? Is it just for audible pleasure or will it improve performance as well? I am a newb with this BOV thingy...

ward · 10-04-2006, 10:23 AM

I wonder how much HP you loose as the boost is vented during shifts?

BMW knows what they're doing, so you're sacrificing power for style (sound)

but hey it's your car so have fun.

leitrim · 10-04-2006, 01:38 PM

No HP loss for BOV, but of course no gain either. It's really just a safety measure (especially if he ends up increasing boost from other mods) to vent unwanted boost during shifts and/or decreasing speed. If there were no BOV or some sort of valve for releasing pressure you would have air being forced into the intake when you don't need or want it ie. slowing down.

While I'm talking about safety, two mods that I think would be a good idea is a turbo timer and perhaps an oil catch can. Turbo timer will keep the engine running for a set amount of time before shutting down to prevent oil cooking, which can damage the turbine and/or compressor.

The catch can will catch the blow-by oil from the PCV valve to the intake tract.

Jason · 10-05-2006, 04:26 PM

video of jp335's BOV !!

http://www.e90post.com/forums/showthread.php?t=32376

aznevoviii · 10-05-2006, 09:20 PM

pipping is 3.5 inches!?

10-03-2006, 11:24 PM	#1
jp335i First Lieutenant Drives: 2007 335i Coupe Join Date: Sep 2006 Location: Atlanta GA Posts: 371 iTrader: (3)	335 BOV installed I know many frown upon this mod but for those of you like me who can't have a boosted car without one... It sounds great, honestly not as loud as i prefer... sound is well insulated under the hood but it still made me smile the first time i heard it. Install is just rough right now with a temp. welded pipe in there but i should have all the new permanent pieces in by the weekend. No performance loss. No Check Engine Light. Replaced a factory rubber pipe so it can be uninstalled and put back to stock in minutes. Factory recircultaing valves are just diabled so it vents to the atmosphere instead of veeding back into the intake. Attached Images

10-03-2006, 11:29 PM	#2
3thirty5 Captain Drives: 335i Join Date: Sep 2006 Location: Calgary, AB, Canada Posts: 900 iTrader: (3) View 3thirty5's Garage	should try to post some vid clips! how much did it all cost? __________________ E92 SPACE GREY 335i Exterior/M3 Truck Spoiler/M-Sport Front Lip/Painted Side Markers/Osram 6000K HID/Cosmo Blue Halos/Cosmo Blue Foglights/19" Privat "Reserve" Wheels/Eagle F1 - 235/35/19 & 265/30/19/LED Lic. Plate Lights Interior/ACS Aluminum Pedals////M Steering Wheel/Hardwired Passport 8500 Performance/H&R Sport Springs/Modified CDV/RD Sport Quad Exhaust/Spearco I.C.

10-03-2006, 11:31 PM	#3
nine4surfah Captain Drives: 325i Electric Red Join Date: Sep 2005 Location: San Diego Posts: 794 iTrader: (0) View nine4surfah's Garage	Yeah!!!! post a vid or sound clip! "ppppppsssssssssshhhhhhhh" __________________

10-03-2006, 11:35 PM	#5
Driv3r Colonel Drives: E90 325i Manual Join Date: May 2005 Location: Miami, FL Posts: 2,308 iTrader: (8) View Driv3r's Garage	VIDEO!!! if u need help, just film and send us the video thru email and we will host it.....there are a thousand places to host vids....we have to hear this one!! the first e92 modder actually starting to cross lines...nice! __________________ E90 325i -Jet Black - Black Leatherrete - Aluminum Interior -Xenon - Sport Package - Blacklines - Blacked out grill - 15% Llumar Tints - Eisenmann 2x76mm Racing exhaust - ACS Lip - CSL 19x9.5 et22 rears - Goodyear F1's - Resonator Delete-

10-03-2006, 11:36 PM	#6
aznevoviii Bimmer n00b Drives: 335i coupe, SLK55, GX470 Join Date: Oct 2006 Location: Maryland Posts: 322 iTrader: (0)	so, basically you are using ONE BOV correct!? so, two factory BOV has been y-piped into single, and flange was welded on!? c'mon man, let us know the secret! if you have any pictures without BOV, BOV flange that you made, let us know too! thanks!! __________________ 335i, SLK55, X3, GX470, LS460, ZX6R, etc...

10-04-2006, 12:01 AM	#8
Kit523 Major General Drives: 08 E92 335i AW Join Date: Feb 2006 Location: B.C. Vancouver Posts: 6,018 iTrader: (21)	EWWWW i wanna hear it so badly=(!!!!!!!!!!!!!!!!!

10-04-2006, 12:02 AM	#9
shragon Moderator Drives: 2006 SG E90 Join Date: Oct 2005 Location: Bay Area, CA Posts: 27,558 iTrader: (5) View shragon's Garage	i would do the same if i had 335i. __________________ www.cardomain.com/id/shragon

10-04-2006, 12:03 AM	#10
jp335i First Lieutenant Drives: 2007 335i Coupe Join Date: Sep 2006 Location: Atlanta GA Posts: 371 iTrader: (3)	I will record vid clip tomorrow at work and post if I can.

10-04-2006, 12:06 AM	#12
BenMW Major Drives: e92 335i Join Date: Feb 2006 Location: Dallas + Chicago(Lake Forest) Posts: 1,388 iTrader: (1) View BenMW's Garage	Lets hear it lets hear it.! __________________ Retired: e46 cabrio, E36 Cabrio, 02' 525i, 325Ci 02' Style 189 335i sport Wheels for sale PM Me BIG CHANGES COMING SOON- Can anyone help me make a sig pic?

10-04-2006, 01:01 AM	#13
kapoo Lieutenant Drives: WRX STI Join Date: Sep 2006 Location: Kuwait Posts: 552 iTrader: (0) View kapoo's Garage	Nice! Just wating on ur video

10-04-2006, 03:11 AM	#14
cto Second Lieutenant Drives: AW 335i Join Date: Sep 2006 Location: Toronto Posts: 204 iTrader: (1)	video clip.. if not just sound clip.. pleaseeeeeeeeeee

10-04-2006, 03:23 AM	#15
Dankim10 Major Drives: E90 325i AW Join Date: Sep 2005 Location: Indonesia - Bogor Posts: 1,207 iTrader: (6) View Dankim10's Garage	envy those blow off! Anyway, I wanna hear the sound! __________________ Blackline \| Euro Xenon Headlight \| Brex white ring \| Breyton spoiler \| ACS roof spoiler \| 19" HRE C20 19x8.5, 19x9.5, with Michellin PS2 tires \| Authentic GruppeM intake \| Authentic M-technik full kits \| 3D Studie front Lip \| Hamann Quad Exhaust \| Hamann Mtech rear Diffuser \| Piaa HID kit for foglight \| KW Street comfort suspension

10-04-2006, 05:17 AM	#16
sillygoat Captain Drives: 335i tiag Join Date: May 2006 Location: las vegas, nv Posts: 656 iTrader: (8)	does this void the warranty in any way???

10-04-2006, 05:33 AM	#17
rainy Private Drives: 330i Join Date: Aug 2006 Location: houston, tx Posts: 96 iTrader: (1)	like everyone else, waiting to hear how it sounds! good work by the way. __________________ failed fuel pump victim - 335i coupe

10-04-2006, 08:22 AM	#18
txusa03 Major General Drives: TS330iPPSP6MT Join Date: Jul 2005 Location: Planet Earth Posts: 6,203 iTrader: (2)	what is BOV, Blow Off Valves...if so, what sort of farting sound will it make? Is it just for audible pleasure or will it improve performance as well? I am a newb with this BOV thingy...

10-04-2006, 10:23 AM	#19
ward Lieutenant General Drives: F Join Date: May 2005 Location: T Posts: 6,044 iTrader: (0)	I wonder how much HP you loose as the boost is vented during shifts? BMW knows what they're doing, so you're sacrificing power for style (sound) but hey it's your car so have fun.

10-04-2006, 01:38 PM	#20
leitrim Private First Class Drives: Barrique Red 330i Join Date: Apr 2006 Location: SF Bay Area Posts: 103 iTrader: (0)	No HP loss for BOV, but of course no gain either. It's really just a safety measure (especially if he ends up increasing boost from other mods) to vent unwanted boost during shifts and/or decreasing speed. If there were no BOV or some sort of valve for releasing pressure you would have air being forced into the intake when you don't need or want it ie. slowing down. While I'm talking about safety, two mods that I think would be a good idea is a turbo timer and perhaps an oil catch can. Turbo timer will keep the engine running for a set amount of time before shutting down to prevent oil cooking, which can damage the turbine and/or compressor. The catch can will catch the blow-by oil from the PCV valve to the intake tract. __________________ 2006 E90 330i Barrique Red Metallic - 6MT - ZSP - ZCW - ZPP - CA - PDC - Sat Prep

10-05-2006, 04:26 PM	#21
Jason Administrator Drives: 4 wheels on the bus go round.. Join Date: Mar 2005 Location: IoT Posts: 6,327 iTrader: (0) View Jason's Garage	video of jp335's BOV !! http://www.e90post.com/forums/showthread.php?t=32376 __________________ Check on the Bimmerpost Blog. Follow us on Bimmerpost Twitter. Subscribe to Bimmerpost Youtube Channel.

10-05-2006, 09:20 PM	#22
aznevoviii Bimmer n00b Drives: 335i coupe, SLK55, GX470 Join Date: Oct 2006 Location: Maryland Posts: 322 iTrader: (0)	pipping is 3.5 inches!? __________________ 335i, SLK55, X3, GX470, LS460, ZX6R, etc...