Notices
Evo General Discuss any generalized technical Evo related topics that may not fit into the other forums. Please do not post tech and rumor threads here.
Sponsored by: RavSpec - JDM Wheels Central

New Greddy BOV... Thoughts?

Thread Tools
 
Search this Thread
 
Old Jun 25, 2013, 03:07 PM
  #1  
Newbie
Thread Starter
 
EvoRich_IX's Avatar
 
Join Date: Feb 2013
Location: Elk Grove, CA
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
New Greddy BOV... Thoughts?

Cruisin through the "internets" and came across a new Greddy Type FV BOV

FV standing for "Floating Valve"

http://greddy.com/featured/46

Thoughts? Has anyone pre-ordered/ordered one?
Old Jun 25, 2013, 05:19 PM
  #2  
Newbie
iTrader: (3)
 
bcrance13's Avatar
 
Join Date: Jul 2010
Location: DC
Posts: 98
Likes: 0
Received 1 Like on 1 Post
Looks promising, should be interesting to read the reviews.
Old Jun 26, 2013, 09:09 PM
  #3  
Newbie
 
gkew's Avatar
 
Join Date: Jun 2013
Location: Connecticut
Posts: 51
Likes: 0
Received 0 Likes on 0 Posts
^^ Reviews are usually good but you can't trust them all. Best bet is to find someone who already has them and see whats their take on it.
Old Jun 27, 2013, 10:02 PM
  #4  
EvoM Guru
iTrader: (50)
 
mrfred's Avatar
 
Join Date: Mar 2006
Location: Tri-Cities, WA // Portland, OR
Posts: 9,675
Received 129 Likes on 97 Posts
looks original and interesting but not obvious that part throttle boost control will be any better. i'm mildly interested in trying one, but my Cobb valve works too well to bother.
Old Jun 28, 2013, 09:31 AM
  #5  
EvoM Guru
iTrader: (1)
 
211Ratsbud's Avatar
 
Join Date: Oct 2010
Location: Watertown, NY
Posts: 4,280
Received 41 Likes on 40 Posts
. I don't immediately see how the second spring really helps. Is it not just a second spring right between the plunger and valve body? Does the valve body slide?yes appearantly Is it a reincarnation of a hks ssqv?

I do agree with greddy's piston to valve area ratio though. And they tend to make a valve that drives very well. I also set mine to be light on the seat at idle.

Actually it looks like the plunger is short almost even with the valve body and the diaphragm unloads the top spring under normal vac and the boost in the pipe only has to overcome a light spring . Makes sense to me now and seems like you could make a standard type valve into that easily.

Last edited by 211Ratsbud; Jun 28, 2013 at 09:40 AM.
Old Jun 28, 2013, 11:05 AM
  #6  
Evolving Member
 
crazybaldhead's Avatar
 
Join Date: May 2007
Location: Trinidad
Posts: 295
Received 2 Likes on 2 Posts
Yes...but will it have the little bird fart sound like the RS???
Old Dec 21, 2013, 08:36 AM
  #7  
EvoM Guru
iTrader: (1)
 
211Ratsbud's Avatar
 
Join Date: Oct 2010
Location: Watertown, NY
Posts: 4,280
Received 41 Likes on 40 Posts
Anyone try this yet? I'm with te don't fix it if it ain't broke idea but my type s is getting old and the rubber will tear sometime..

I also like the recirc option as the type s didn't lend easily there


--
Gasp.. I might jump to a tial.
Old Dec 18, 2014, 11:27 PM
  #8  
Evolving Member
iTrader: (2)
 
ace33joe's Avatar
 
Join Date: Mar 2003
Location: Used to be in Nor Cal, now working in Seoul
Posts: 394
Received 7 Likes on 7 Posts
Originally Posted by mrfred
looks original and interesting but not obvious that part throttle boost control will be any better. i'm mildly interested in trying one, but my Cobb valve works too well to bother.
I think we can set up the main spring pretty soft due to added floating valve spring, so when there is only one spring, the optimum operating window was relatively small to ensure closed at idle and open freely at even low boost, but this one should have larger window theoretically.

I like the fact Greddy BOV has diaphragm style like stock unit, so no need for oiling maintenance of metal piston type BOVs.

I might try this one when my GFB StealthFX is degraded, but it functions well, and I do like this adjustable vent to air ratio feature (Cool sound and minimal impact on driveability in another word. )
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Octevo12
Evo X Show / Shine
302
Jul 4, 2023 09:24 AM
EvoXCa
Evo X How Tos / Installations
0
Jun 28, 2016 07:11 PM
BluEvo62
Evo X How Tos / Installations
7
May 19, 2016 01:11 PM
lbdub12
Evo How Tos / Installations
0
Jan 13, 2015 08:19 PM
211Ratsbud
Evo Engine / Turbo / Drivetrain
5
Dec 14, 2014 06:02 PM



Quick Reply: New Greddy BOV... Thoughts?



All times are GMT -7. The time now is 06:18 PM.