E90Post
 


TNT Racewerks
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > BOV Sound



Reply
 
Thread Tools Search this Thread
      03-05-2012, 08:22 AM   #1
neilvosko
Major
 
neilvosko's Avatar
 
Drives: 335i e92 FBO
Join Date: Dec 2011
Location: miami

Posts: 1,398
iTrader: (16)

BOV Sound

Could someone tell me if its normal to have no BOV sounds with car at park while reving after FBO install?

all stock with BOV i used to hear the whoosh just revving, now with DPs, FMIC, DCI...no sound, only during driving? when i run hard i can see the boost gauge holding boost? is this normal, do i have a leak somewhere?
neilvosko is offline   United_States
0
Reply With Quote
      03-05-2012, 08:28 AM   #2
rader1
Banned
 
Drives: Cobb Stage 2+ 135i
Join Date: Apr 2011
Location: Roanoke, VA

Posts: 2,197
iTrader: (0)

Try revving the engine and let off, then quickly give it a "stab"(before the revs drop) and release the throttle again. It should blow off.
rader1 is offline  
0
Reply With Quote
      03-05-2012, 04:35 PM   #3
skatenc123
Captain
 
skatenc123's Avatar
 
Drives: 2007 335i coupe
Join Date: Jan 2012
Location: NC

Posts: 645
iTrader: (1)

alot of cars dont build boost while in park, im not sure if it builds boost in neutral or not though.
skatenc123 is offline  
0
Reply With Quote
      03-05-2012, 04:59 PM   #4
klipseracer
Banned
 
Drives: 2007 E90 335i, 05 E46 330i
Join Date: Aug 2009
Location: Arizona

Posts: 3,012
iTrader: (27)

Garage List
2007 335i  [0.00]
2005 330i  [0.00]
Send a message via MSN to klipseracer
our cars build a very small amount of boost without load. You gotta rev it up pretty good to hear anything though.
klipseracer is offline   United_States
0
Reply With Quote
      03-05-2012, 05:07 PM   #5
Fundahl
Captain
 
Drives: VO 1M, 300zx TT
Join Date: Mar 2011
Location: Corpus Christi, Texas

Posts: 704
iTrader: (0)

You need load to build boost. It's probably harder to hear the small amount of pressure generated now while in park revving.
Fundahl is offline   United_States
0
Reply With Quote
      03-05-2012, 05:12 PM   #6
GmoBmw
Captain
 
GmoBmw's Avatar
 
Drives: 2007 335i
Join Date: Dec 2011
Location: California

Posts: 645
iTrader: (8)

Ya its kinda crappy when im in park or in N. its like a tiny whistle.
__________________
2007 BMW 335I- JB4 G5,DCI,VRSF DPs,NT555r Drag Radials Daily Driver
GmoBmw is offline  
0
Reply With Quote
      03-05-2012, 05:32 PM   #7
Fundahl
Captain
 
Drives: VO 1M, 300zx TT
Join Date: Mar 2011
Location: Corpus Christi, Texas

Posts: 704
iTrader: (0)

Quote:
Originally Posted by GmoBmw View Post
Ya its kinda crappy when im in park or in N. its like a tiny whistle.
Then put it in drive and hold the brake and gas to spool it.....
Fundahl is offline   United_States
0
Reply With Quote
      03-05-2012, 05:44 PM   #8
GmoBmw
Captain
 
GmoBmw's Avatar
 
Drives: 2007 335i
Join Date: Dec 2011
Location: California

Posts: 645
iTrader: (8)

Quote:
Originally Posted by Fundahl View Post
Then put it in drive and hold the brake and gas to spool it.....
Already do this. ^_^ I was just answering the OP question.
__________________
2007 BMW 335I- JB4 G5,DCI,VRSF DPs,NT555r Drag Radials Daily Driver
GmoBmw is offline  
0
Reply With Quote
      03-05-2012, 05:49 PM   #9
335iJWC
~~~
 
Drives: JB 335i-M3
Join Date: Feb 2010
Location: Simi Valley

Posts: 590
iTrader: (4)

Garage List
2008 BMW 335i  [4.50]
I can hear my HKS clearly, in neutral, 6 MT though but it shouldnt matter
__________________
.
................
335iJWC is offline   United_States
0
Reply With Quote
      03-05-2012, 06:10 PM   #10
Fundahl
Captain
 
Drives: VO 1M, 300zx TT
Join Date: Mar 2011
Location: Corpus Christi, Texas

Posts: 704
iTrader: (0)

Quote:
Originally Posted by 335iJWC View Post
I can hear my HKS clearly, in neutral, 6 MT though but it shouldnt matter
If you start at idle and go WOT quickly till about 4-5000RPM and then let off quickly you should get about 2-4psi.
Fundahl is offline   United_States
0
Reply With Quote
      03-05-2012, 06:28 PM   #11
335iJWC
~~~
 
Drives: JB 335i-M3
Join Date: Feb 2010
Location: Simi Valley

Posts: 590
iTrader: (4)

Garage List
2008 BMW 335i  [4.50]
http://www.youtube.com/watch?feature...&v=FDf2-FY6UNk

Here is a video!!
__________________
.
................
335iJWC is offline   United_States
0
Reply With Quote
      03-05-2012, 06:39 PM   #12
Jeff@TopGearSolutions
BimmerPost Supporting Vendor

 
Jeff@TopGearSolutions's Avatar
 
Drives: C6 Z06, GSXR-750, 09 335i
Join Date: Dec 2008
Location: TopGearSolutions.com

Posts: 15,541
iTrader: (30)

Send a message via AIM to Jeff@TopGearSolutions
Quote:
Originally Posted by rader1 View Post
Try revving the engine and let off, then quickly give it a "stab"(before the revs drop) and release the throttle again. It should blow off.
Double tap WOT, yes.
Quote:
Originally Posted by klipseracer View Post
our cars build a very small amount of boost without load. You gotta rev it up pretty good to hear anything though.
Very true.
Jeff@TopGearSolutions is offline   United_States
0
Reply With Quote
      03-06-2012, 05:43 AM   #13
neilvosko
Major
 
neilvosko's Avatar
 
Drives: 335i e92 FBO
Join Date: Dec 2011
Location: miami

Posts: 1,398
iTrader: (16)

Thanks Guyz, makes sense.
neilvosko is offline   United_States
0
Reply With Quote
      03-06-2012, 10:10 AM   #14
Brey335i
Brigadier General
 
Brey335i's Avatar
 
Drives: e46 ///M3
Join Date: Oct 2009
Location: Austin, TX

Posts: 4,737
iTrader: (11)

I can hear mine very clearly if I put it in N and rev it.
Brey335i is offline  
0
Reply With Quote
      03-06-2012, 10:22 AM   #15
eaglesfan83
FIRE TOEZ!!!!!
 
eaglesfan83's Avatar
 
Drives: Not a BMW
Join Date: Jan 2009
Location: Arlington, VA

Posts: 1,189
iTrader: (6)

Garage List
I hear my Synapse loud and clear while parked and in N (6MT)
__________________
SOLD 2010 E93 335i AW/CR


E9X Picture Game: 4-1 Points: Seasonal Meet, Veterans Day, Pet on Roof, E9x next to a vert
eaglesfan83 is offline  
0
Reply With Quote
      03-06-2012, 09:50 PM   #16
neilvosko
Major
 
neilvosko's Avatar
 
Drives: 335i e92 FBO
Join Date: Dec 2011
Location: miami

Posts: 1,398
iTrader: (16)

i realized that you can hear it when it worms ups, not cold.

thanks guyz.
neilvosko is offline   United_States
0
Reply With Quote
      03-07-2012, 12:00 AM   #17
335iJWC
~~~
 
Drives: JB 335i-M3
Join Date: Feb 2010
Location: Simi Valley

Posts: 590
iTrader: (4)

Garage List
2008 BMW 335i  [4.50]
You shouldn't go wot, while cold but it should still be audible
__________________
.
................
335iJWC is offline   United_States
0
Reply With Quote
Reply

Bookmarks

Tags
bov, turbo

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 11:51 PM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST