Fit Engine Modifications, Motor Swaps, ECU Tuning Reference Library for Engine Modifications, Swaps and Tuning

Kwsc: pro/cons for running a BOV vs a DV?

Thread Tools
 
Search this Thread
 
  #1  
Old 11-12-2009, 10:38 PM
dewthedew's Avatar
Retired Moderator
5 Year Member
Thread Starter
iTrader: (9)
Join Date: Apr 2008
Location: HollyHOOD, fl
Posts: 4,055
Kwsc: pro/cons for running a BOV vs a DV?

Im going to upgrade the DV the kit comes with to either a metal forge DV or look into getting a BOV. Is there any pro/cons of running one or the other?

These are the ones im looking at:

Forge BOV http://www.ecstuning.com/Volkswagen-...BOV/ES1832068/

Forge splitter DV/BOV http://www.ecstuning.com/Volkswagen-...ke/BOV/ES8288/

Forge DV http://www.ecstuning.com/Volkswagen-...lve/ES1832054/
 

Last edited by dewthedew; 11-12-2009 at 10:43 PM.
  #2  
Old 11-14-2009, 01:45 PM
dewthedew's Avatar
Retired Moderator
5 Year Member
Thread Starter
iTrader: (9)
Join Date: Apr 2008
Location: HollyHOOD, fl
Posts: 4,055
I think Im going to go with the BOV to get rid of that huge hose.
 
  #3  
Old 11-14-2009, 03:50 PM
MNfit's Avatar
Super Moderator
iTrader: (8)
Join Date: Oct 2007
Location: Minnesota
Posts: 3,379
What would I need to do to switch it to a BOV, and whats a DV?
 
  #4  
Old 11-14-2009, 04:19 PM
Evotech8's Avatar
Member
5 Year Member
iTrader: (1)
Join Date: Jun 2007
Location: NorCal
Posts: 197
BOV= Blow Off Valve
DV=Divertor Valve

Both serve the same function, but a divertor valve recirculates the released air back into the intake. The benefit of a DV on MAF (mass air flow) equipped car is to keep the AFR and idle stable since its metered air going into the engine. On a Fit I don't think it matters since its a non-MAF car and a BOV will work just fine and with less plumbing. And a BOV will make a loud woosh sound than a DV since air is released to open atmosphere.
 
  #5  
Old 11-14-2009, 04:22 PM
dewthedew's Avatar
Retired Moderator
5 Year Member
Thread Starter
iTrader: (9)
Join Date: Apr 2008
Location: HollyHOOD, fl
Posts: 4,055
Originally Posted by MNfit
What would I need to do to switch it to a BOV, and whats a DV?

the bov kits for the vw 1.8t engine works for the kwsc because it includes everything block off plug and all.
 
  #6  
Old 11-16-2009, 09:30 AM
Texas Coyote's Avatar
Member
5 Year Member
iTrader: (3)
Join Date: Oct 2007
Location: Anderson County Texas
Posts: 7,388
You don't care about getting rid of the big hose hose, as much as you do the fast and furious sound of the BOV.... I am wondering if you are thinking of an adjustable BOV that can possibly increase your boost...
 
  #7  
Old 11-16-2009, 10:06 AM
robertdjr's Avatar
Member
Join Date: Dec 2008
Location: Kitchener
Posts: 354
i see.. that's the use of those valves.. thanks for the info..
 
  #8  
Old 11-16-2009, 10:20 AM
Texas Coyote's Avatar
Member
5 Year Member
iTrader: (3)
Join Date: Oct 2007
Location: Anderson County Texas
Posts: 7,388
The BOV and DV are used to limit pressure but on turbos an adjustable BOV allows you to optimize power as well.... I don't know if one can be utilized to do that though on the Rotrex super charger used by KraftWerks.... Someone is sure to figure out how to if it hasn't been already.
 
  #9  
Old 11-16-2009, 12:35 PM
dewthedew's Avatar
Retired Moderator
5 Year Member
Thread Starter
iTrader: (9)
Join Date: Apr 2008
Location: HollyHOOD, fl
Posts: 4,055
Originally Posted by Texas Coyote
You don't care about getting rid of the big hose hose, as much as you do the fast and furious sound of the BOV.... I am wondering if you are thinking of an adjustable BOV that can possibly increase your boost...
the forge bov is only a wooosh noise nothing ricey.
 
  #10  
Old 11-16-2009, 01:49 PM
Texas Coyote's Avatar
Member
5 Year Member
iTrader: (3)
Join Date: Oct 2007
Location: Anderson County Texas
Posts: 7,388
I was just kidding you, I know where your head is when it comes to your performance mods.
 
  #11  
Old 11-18-2009, 05:22 PM
Jesse's Avatar
Member
5 Year Member
iTrader: (1)
Join Date: Oct 2008
Location: tx
Posts: 220
Originally Posted by Texas Coyote
You don't care about getting rid of the big hose hose, as much as you do the fast and furious sound of the BOV.... I am wondering if you are thinking of an adjustable BOV that can possibly increase your boost...
waste gate controls boost not bov. bov used to be called a popoff valve by some will keep you from damaging your butterfly in tb from pressure when throttles closed. a bov diverts the pressure into the atmosphere where as a dv puts it back into circlulation but undo hose and the dv becomes a bov lol.
 
  #12  
Old 11-18-2009, 10:29 PM
Texas Coyote's Avatar
Member
5 Year Member
iTrader: (3)
Join Date: Oct 2007
Location: Anderson County Texas
Posts: 7,388
I thought about that later in the evening after posting it and felt pretty goofy.... Now that someone finally noticed my goof I feel even worse...LOL.
 
  #13  
Old 11-19-2009, 01:05 AM
dewthedew's Avatar
Retired Moderator
5 Year Member
Thread Starter
iTrader: (9)
Join Date: Apr 2008
Location: HollyHOOD, fl
Posts: 4,055
Originally Posted by Jesse
waste gate controls boost not bov. bov used to be called a popoff valve by some will keep you from damaging your butterfly in tb from pressure when throttles closed. a bov diverts the pressure into the atmosphere where as a dv puts it back into circlulation but undo hose and the dv becomes a bov lol.
there is no wastegate on the kw s/c only a dv
 
  #14  
Old 11-19-2009, 01:23 AM
Koi's Avatar
Koi
Koi is offline
Member
5 Year Member
iTrader: (7)
Join Date: Feb 2008
Location: California, that's right
Posts: 1,139
Originally Posted by dewthedew
there is no wastegate on the kw s/c only a dv
He was correcting Texas about what he said regarding BOV's on turbos.
 
  #15  
Old 11-19-2009, 04:37 AM
Texas Coyote's Avatar
Member
5 Year Member
iTrader: (3)
Join Date: Oct 2007
Location: Anderson County Texas
Posts: 7,388
[QUOTE=Koi;777436]He was correcting Texas about what he said regarding BOV's on turbos... And rightfully corrected I must add.
 
  #16  
Old 04-05-2010, 04:57 AM
Koi's Avatar
Koi
Koi is offline
Member
5 Year Member
iTrader: (7)
Join Date: Feb 2008
Location: California, that's right
Posts: 1,139
Reviving a long dead thread:

Dewthedew, did you ever get that Forge BOV?
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
doctor J
1st Generation (GD 01-08)
2
03-30-2016 07:47 AM
theFITMASTER
Fit Engine Modifications, Motor Swaps, ECU Tuning
12
01-13-2010 11:38 AM
super929
Fit Engine Modifications, Motor Swaps, ECU Tuning
12
09-09-2006 01:42 PM
Steve
Other Car Related Discussions
8
09-12-2005 09:30 AM



Quick Reply: Kwsc: pro/cons for running a BOV vs a DV?



All times are GMT -4. The time now is 09:25 AM.