GalantVR4.org The Mitsubishi Galant VR-4 Forum
Galant VR-4 Forums » Galant VR-4 » Technical Discussions » Re: BoV suggestions (flutter dump w/ stock BOV)
Previous thread Next thread

Re: BoV suggestions (flutter dump w/ stock BOV)


EHmotorsports
Capt Fabbin Stabbin
1865/2000


Galant VR-4 org Post #: 1177253 posted 06/23/14 12:09 PM     Remind Me!  Send Private Message   Edit Post      
ya its a good idea. why not if the option is available. I will be reworking the wiring and cleaning the bay of my car soon. Taking the old Greddy controller out and running link boost control. one less thing that clutters up the engine bay and inside of my car.



click

Posts: 1278 | From: Beaverton | Member Since: 09/26/12 | IP: (24.22.46.133) | Report this post to a Moderator

GSTwithPSI
A hole
820/1000
1837/2000



Galant VR-4 org Post #: 1177254 posted 06/23/14 12:18 PM     Remind Me!  Send Private Message   Edit Post      
The thing I like the most is everything is consolidated with ECMlink. I can adjust boost at the same time with everything else, rather than have to screw with a MBC under the hood or adjust another controller somewhere. I know most guys just set the boost and leave it, so the point could be moot, but I like my laptop being the one stop shop for everything. In addition, you can't get the adjustability out of a MBC that you can with ECMlink. You can set the duty cycle on the solenoid to do whatever you want; from boost spikes to launch control. It's a really nice feature overall, and requires very little to get it up and working.



820/1000
1837/2000
1546/2000-SOLD
1813/2000-SOLD

Posts: 3436 | From: SoCal | Member Since: 01/02/12 | IP:
(214.4.253.121) | Report this post to a Moderator

prove_it
my racist jokes aren't actually funny
715/1000
1284/2000


Galant VR-4 org Post #: 1177256 posted 06/23/14 12:33 PM     Remind Me!  Send Private Message   Edit Post      
I friggin love the 26lb spike when my cyclone opens. Then it falls to keep the baby 16g from blowing up.



#1284/2K NB, Totaled
#715/1K KG, Rebuilding
02 Acura TL daily duty unit

12yr+ Vr4 owner.
Honda/Acura master tech.
Family Guy

Posts: 4201 | From: Sioux Falls, SD | Member Since: 07/04/08 | IP: (24.230.93.110) | Report this post to a Moderator

coyotes
Hipster VR4
1226/2000


Galant VR-4 org Post #: 1177257 posted 06/23/14 12:37 PM     Remind Me!  Send Private Message   Edit Post      
Once again some nicely done work by Evan. I just need to open a bar tab with him and drop my car off.



1226/2000

Posts: 1544 | From: Seattle, WA | Member Since: 11/15/13 | IP: (172.56.32.115) | Report this post to a Moderator

MDK87
Newbie


Galant VR-4 org Post #: 1177318 posted 06/23/14 06:23 PM     Remind Me!  Send Private Message   Edit Post      
I also prefer the 1G BOV over aftermarket stuff. I've used a crushed 1G BOV before which seemed to work well, but I'm having trouble trying to understand what this mod does? Is the idea that pressure at the compressor outlet will be slightly higher and therefore assist in keeping the valve seated?
As the passage in the housing cannot be enlarged, I wonder if you'd see a better result by tapping a new (larger) threaded port into the upper part of the housing (pic below).

I wasn't aware that ECMlink had an output available to switch a BOV. That's quite handy. Maybe you could use that to switch a solenoid and close the compressor feed on throttle lift-off while just running the usual boost/vac line to the diaphragm to allow easier opening of the valve..?

Just throwing ideas out there for evaluation.. Maybe someone has done it before lol



Edited by MDK87 (06/23/14 06:25 PM)

Posts: 23 | From: Brisbane, Australia | Member Since: 01/12/10 | IP: (124.170.91.37) | Report this post to a Moderator

EHmotorsports
Capt Fabbin Stabbin
1865/2000


Galant VR-4 org Post #: 1177322 posted 06/23/14 06:42 PM     Remind Me!  Send Private Message   Edit Post      
The dodge mod adds a port to the lower portion of the BOV for quicker response when the TB is fully closed. so it just adds the port at the flange instead of where your dot is located. same vac port.



click

Posts: 1278 | From: Beaverton | Member Since: 09/26/12 | IP: (24.22.46.133) | Report this post to a Moderator

GSTwithPSI
A hole
820/1000
1837/2000



Galant VR-4 org Post #: 1177327 posted 06/23/14 07:20 PM     Remind Me!  Send Private Message   Edit Post      
Quoting MDK87:

I also prefer the 1G BOV over aftermarket stuff. I've used a crushed 1G BOV before which seemed to work well, but I'm having trouble trying to understand what this mod does? Is the idea that pressure at the compressor outlet will be slightly higher and therefore assist in keeping the valve seated?
As the passage in the housing cannot be enlarged, I wonder if you'd see a better result by tapping a new (larger) threaded port into the upper part of the housing (pic below).

I wasn't aware that ECMlink had an output available to switch a BOV. That's quite handy. Maybe you could use that to switch a solenoid and close the compressor feed on throttle lift-off while just running the usual boost/vac line to the diaphragm to allow easier opening of the valve..?

Just throwing ideas out there for evaluation.. Maybe someone has done it before lol






Here's an in depth explanation of how the Dodge mod works. click



820/1000
1837/2000
1546/2000-SOLD
1813/2000-SOLD

Posts: 3436 | From: SoCal | Member Since: 01/02/12 | IP:
(72.45.2.251) | Report this post to a Moderator

EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1177333 posted 06/23/14 07:54 PM     Remind Me!  Send Private Message   Edit Post      
Quoting GSTwithPSI:

You should ditch that crusty looking MBC and just use ECMlink instead.




After buying a new motor, transmission, and other bits and pieces, I'm on toy probation until I buy my house No big deal, but with the car tuned and running great, no need to play with the MBC. I figure when I start back up on the car, I'll move to SD and fuel system stuff. Until then, little bits here and there.



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

Posts: 647 | From: portland, or | Member Since: 10/18/12 | IP: (75.164.165.221) | Report this post to a Moderator

EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1177334 posted 06/23/14 07:55 PM     Remind Me!  Send Private Message   Edit Post      
Quoting EHmotorsports:

ya its a good idea. why not if the option is available. I will be reworking the wiring and cleaning the bay of my car soon. Taking the old Greddy controller out and running link boost control. one less thing that clutters up the engine bay and inside of my car.




Great! get it dialed on your car, then we can talk about doing it with mine since you'll have the process down!



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

Posts: 647 | From: portland, or | Member Since: 10/18/12 | IP: (75.164.165.221) | Report this post to a Moderator

EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1177365 posted 06/23/14 10:04 PM     Remind Me!  Send Private Message   Edit Post      
UPDATE:

Flutter after the dodge mod. then a pop, followed by no flutter. As shown in the last photo on page 1, the recirculation hose had popped off. No surprise, I suppose, since it was a hack-job to begin with. A chopped piece of blue coolant host with the stock intake pipe rubber hose clamped on the end. The issue was that the hack-job hose created a nasty crimp in the already narrow stock bit of hose. That hose had an elbow shape and it was bent even more, restricting the flow a bit.

My theory at this point is that it was restricted enough to throttle the BoV at higher boost levels, leading to the flutter. When it blew itself off, it effectively removed the restriction, and ta-da, no flutter anymore.

I spent some time at the autoparts store today sourcing a single hose that had the length and curve I was looking for (cough). I got it back to my car (yay for owning a motorcycle on a hot day), cut it to the right length, and got it hooked up. It's looking much better, although I haven't had a chance to drive it around and validate it's actually solving the problem.

More to come...



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

Posts: 647 | From: portland, or | Member Since: 10/18/12 | IP: (75.164.165.221) | Report this post to a Moderator

EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1177430 posted 06/24/14 11:37 AM     Remind Me!  Send Private Message   Edit Post      
Seems good so far. No real room to boost on the drive to work, but I did bounce over 20PSI at one point with no noticeable flutter. In fact, there was hardly any sound at all (finally).

The new hose is much wider than the old one




RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

Posts: 647 | From: portland, or | Member Since: 10/18/12 | IP: (209.152.44.116) | Report this post to a Moderator

EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1177477 posted 06/24/14 06:35 PM     Remind Me!  Send Private Message   Edit Post      
I just hammered it. spiked to 23psi, then settled to 21. No flutter, quiet blow-off, and fast fast fast



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)


Edited by EfiniX (06/26/14 07:43 PM)

Posts: 647 | From: portland, or | Member Since: 10/18/12 | IP: (216.161.94.24) | Report this post to a Moderator

prove_it
my racist jokes aren't actually funny
715/1000
1284/2000


Galant VR-4 org Post #: 1177781 posted 06/27/14 08:52 AM     Remind Me!  Send Private Message   Edit Post      
But now it stalls....



#1284/2K NB, Totaled
#715/1K KG, Rebuilding
02 Acura TL daily duty unit

12yr+ Vr4 owner.
Honda/Acura master tech.
Family Guy

Posts: 4201 | From: Sioux Falls, SD | Member Since: 07/04/08 | IP: (24.230.93.110) | Report this post to a Moderator

4thStroke
Spence knows tools
786/2000


Galant VR-4 org Post #: 1177854 posted 06/27/14 06:38 PM     Remind Me!  Send Private Message   Edit Post      
Not all that glitters is gold. Although I was able to dial in and create a perfect boost curve with ECMLink, you could audibly hear the wastegate "chop" from the solenoid opening and closing through the open dump. I've seen this before and the cars pulled good. However, my experience was that the car did not seem to pull clean. I've talked to others who experienced the same. I tried different ways of trying to dampen the change in flow (or the pulse) in the vacuum lines, but I had no luck. I went back to my inline perrin unit. The perrin spikes less and holds better than my hallman, unexpectedly. The MBC doesn't give the curve I want, but the system works better.

Posts: 1864 | From: Vancouver, WA | Member Since: 10/22/07 | IP: (24.21.75.161) | Report this post to a Moderator

EHmotorsports
Capt Fabbin Stabbin
1865/2000


Galant VR-4 org Post #: 1177857 posted 06/27/14 06:56 PM     Remind Me!  Send Private Message   Edit Post      
do you think running a stiffer WG spring would help with the chop you were experiencing? or a smaller WG?



click

Posts: 1278 | From: Beaverton | Member Since: 09/26/12 | IP: (24.22.46.133) | Report this post to a Moderator

4thStroke
Spence knows tools
786/2000


Galant VR-4 org Post #: 1177868 posted 06/27/14 08:21 PM     Remind Me!  Send Private Message   Edit Post      
I'm limited by the 44mm flange with the FP turbine housing. It has the 12psi spring I believe. I've wondered if a different spring would help, that's another thing I have yet to try, but I can't find the logical sense that would tell me it would help.

Posts: 1864 | From: Vancouver, WA | Member Since: 10/22/07 | IP: (24.21.75.161) | Report this post to a Moderator

GSTwithPSI
A hole
820/1000
1837/2000



Galant VR-4 org Post #: 1177888 posted 06/27/14 10:07 PM     Remind Me!  Send Private Message   Edit Post      
Quoting 4thStroke:

Not all that glitters is gold. Although I was able to dial in and create a perfect boost curve with ECMLink, you could audibly hear the wastegate "chop" from the solenoid opening and closing through the open dump. I've seen this before and the cars pulled good. However, my experience was that the car did not seem to pull clean. I've talked to others who experienced the same. I tried different ways of trying to dampen the change in flow (or the pulse) in the vacuum lines, but I had no luck. I went back to my inline perrin unit. The perrin spikes less and holds better than my hallman, unexpectedly. The MBC doesn't give the curve I want, but the system works better.




The solenoid functions just fine on a stock wastegate actuator, which leads me to believe the issue is with your wastegate, not ECMlink or the solenoid. I'm not sure how you had your system setup, but if you have it setup with the .25 restrictor pill like normal, you probably aren't getting the pressure required to give you proper control of your wastegate. Keep in mind, the stock wastegate doesn't have a spring to work against like your 44mm WG does. Ask anyone here running ECMlink boost control, and they'll probably tell you it performs flawlessly.

Why don't you give us some more details about how you had yours set up? Were you running a restrictor? How and where did you have the lines connected?



820/1000
1837/2000
1546/2000-SOLD
1813/2000-SOLD


Edited by GSTwithPSI (06/27/14 10:21 PM)

Posts: 3436 | From: SoCal | Member Since: 01/02/12 | IP:
(72.45.2.251) | Report this post to a Moderator

Boostdtalon
Member +++


Galant VR-4 org Post #: 1177889 posted 06/27/14 10:09 PM     Remind Me!  Send Private Message   Edit Post      
I have had good success with the Synapse BOV's and DV's. Ran them on my Talon, Evo, and Galant. They make a flange that bolts onto our stock dsm flange. I will also be going with there 50mm on my 3065 as it works in place of a 44mm WG.

Synapse Engineering

Posts: 913 | From: Buckley, Wa. | Member Since: 10/15/09 | IP: (130.76.32.65) | Report this post to a Moderator

EHmotorsports
Capt Fabbin Stabbin
1865/2000


Galant VR-4 org Post #: 1177890 posted 06/27/14 10:12 PM     Remind Me!  Send Private Message   Edit Post      
are you planning on running low boost with the 50mm?



click

Posts: 1278 | From: Beaverton | Member Since: 09/26/12 | IP: (98.246.179.90) | Report this post to a Moderator

EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1177893 posted 06/27/14 10:26 PM     Remind Me!  Send Private Message   Edit Post      
Quoting prove_it:

But now it stalls....




Well it was doing exactly the same thing before



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

Posts: 647 | From: portland, or | Member Since: 10/18/12 | IP: (75.164.165.221) | Report this post to a Moderator

4thStroke
Spence knows tools
786/2000


Galant VR-4 org Post #: 1177898 posted 06/27/14 10:38 PM     Remind Me!  Send Private Message   Edit Post      
Quoting GSTwithPSI:

Quoting 4thStroke:

Not all that glitters is gold. Although I was able to dial in and create a perfect boost curve with ECMLink, you could audibly hear the wastegate "chop" from the solenoid opening and closing through the open dump. I've seen this before and the cars pulled good. However, my experience was that the car did not seem to pull clean. I've talked to others who experienced the same. I tried different ways of trying to dampen the change in flow (or the pulse) in the vacuum lines, but I had no luck. I went back to my inline perrin unit. The perrin spikes less and holds better than my hallman, unexpectedly. The MBC doesn't give the curve I want, but the system works better.




The solenoid functions just fine on a stock wastegate actuator, which leads me to believe the issue is with your wastegate, not ECMlink or the solenoid. I'm not sure how you had your system setup, but if you have it setup with the .25 restrictor pill like normal, you probably aren't getting the pressure required to give you proper control of your wastegate. Keep in mind, the stock wastegate doesn't have a spring to work against like your 44mm WG does. Ask anyone here running ECMlink boost control, and they'll probably tell you it performs flawlessly.

Why don't you give us some more details about how you had yours set up? Were you running a restrictor? How and where did you have the lines connected?




I had it set up exactly how ECMLink suggests with the recommended IR 3 port. No restrictor. I've heard this same chop in Hondas before. I've talked a good amount to Lucas and Aaron at English about it too. After they experienced the same thing, they also went back to a MBC. I posted on the ECMLink boards and got no response. Im willing to give it another try at higher boost levels, we'll see how it does, it just pains me having to rip on the car at high power levels for the sake of trying to dial in a method in still leery about. I wonder how many people experience this chop but don't notice it (maybe from recirculating the wastegate) or really aren't aware altogether.

Posts: 1864 | From: Vancouver, WA | Member Since: 10/22/07 | IP: (24.21.75.161) | Report this post to a Moderator

brisvr4
Oceania Distict Enforcer for the Galant VR4 Mafia


Galant VR-4 org Post #: 1177921 posted 06/28/14 04:16 AM     Remind Me!  Send Private Message   Edit Post      
I was experiencing a bad chopping from what I thought was the wastegate for a while. I'm also running ecmlink with the ir solenoid through to a pte 46mm gate.
I tried everything that I could to get rid of it including going back to a mbc.
It seemed to pull fine at wastegate pressure (17psi) but once I got over 30psi or so it would start a rapid chop.
It only went away after I swapped in a brand new 90 amp alternator.
I never did pin it down to any one thing but it pulls perfectly since the swap.



Tim
1992 Auspec
11.37 @ 131.46 - E85 goodness and stock block!
Official Australian home of the Ugh decal!

Posts: 955 | From: brisbane australia | Member Since: 02/13/04 | IP: (101.168.255.238) | Report this post to a Moderator

Boostdtalon
Member +++


Galant VR-4 org Post #: 1177964 posted 06/28/14 09:11 PM     Remind Me!  Send Private Message   Edit Post      
Quoting EHmotorsports:

are you planning on running low boost with the 50mm?




Yes at first I will be. Not sure how low as I'm far from that point. I've personally seen these run between 10-15 psi with no issues. Just have to know how to set them up.

Posts: 913 | From: Buckley, Wa. | Member Since: 10/15/09 | IP: (130.76.32.65) | Report this post to a Moderator

EHmotorsports
Capt Fabbin Stabbin
1865/2000


Galant VR-4 org Post #: 1177969 posted 06/28/14 10:08 PM     Remind Me!  Send Private Message   Edit Post      
Reason I ask is I've found it more difficult to hold boost with larger WG's in higher boost applications the smaller gates are less responsive and boost controll seems to be smoother.



click

Posts: 1278 | From: Beaverton | Member Since: 09/26/12 | IP: (98.246.179.90) | Report this post to a Moderator

Boostdtalon
Member +++


Galant VR-4 org Post #: 1177981 posted 06/28/14 11:59 PM     Remind Me!  Send Private Message   Edit Post   
Evan, I'll talk with you more about this on FB.

Posts: 913 | From: Buckley, Wa. | Member Since: 10/15/09 | IP: (130.76.32.65) | Report this post to a Moderator


Pages: 1 | 2 | 3 | 4
Previous thread Next thread

Extra information
0 registered and 27 anonymous users are browsing this forum.

Galant VR4.org Moderator:  curtis, steve, atc250r, jcgalntvr4-244, cheekychimp, jepherz, Rausch, toybreaker, iceman69510, pot, FlyingEagle 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Thread views: 11739

Rate this thread


News & Events: News | Events
Galant VR-4: Newbies | General VR4 Discussions | Technical Discussions | How To and Info Archive
Marketplace: Parts For Sale | Cars For Sale | Good Guys | Bad Guys
Community: Members' Showcase

Contact Us | Privacy statement GalantVR-4.org

Generated in 0.093 seconds in which 0.042 seconds were spent on a total of 14 queries. Turbo powered.


Hertz's Galant VR-4 Page