"How-To" SHO and Flex convert to vent to atmosphere with factory blow off valves

so do you need 3/4" or 1" caps for this? I've seen both, and want to make sure I order what will work best. The 3/4" O'Reilly and NAPA have in stock, the 1" I have to order online.
 
I know this thread is older than time but I just got done reading the whole thing and have a couple questions. First, I noticed some people are running SSQV in place of factory BOV...curious why and how they did it? Second, like some others have indicated, my SHO vents sometimes under light acceleration. This is a bit frustrating as I am pretty sure it should not be. I am wondering if I didn't hurt something when I originally did the mod because I blocked off the BOV and returns accidentally. This made that very cool sounding surge but pretty sure its horrible for the car! How can I confirm that my BOV's are ok and if they are not how can I/should I go about replacing? Thanks for any help you can offer!
 
Mase said:
I know this thread is older than time but I just got done reading the whole thing and have a couple questions. First, I noticed some people are running SSQV in place of factory BOV...curious why and how they did it? Second, like some others have indicated, my SHO vents sometimes under light acceleration. This is a bit frustrating as I am pretty sure it should not be. I am wondering if I didn't hurt something when I originally did the mod because I blocked off the BOV and returns accidentally. This made that very cool sounding surge but pretty sure its horrible for the car! How can I confirm that my BOV's are ok and if they are not how can I/should I go about replacing? Thanks for any help you can offer!
Click to expand...
Welcome there Mase!!  Do you have any pics to share?  It sounds like your wastegate hose is loose or popped off!!
Is there any noticeable decrease in performance?
Due setup in INTRO when you have a chance,thanks. Z
http://www.ecoboostperformanceforum.com/index.php/board,14.0.html
 
ZSHO said:
Mase said:
I know this thread is older than time but I just got done reading the whole thing and have a couple questions. First, I noticed some people are running SSQV in place of factory BOV...curious why and how they did it? Second, like some others have indicated, my SHO vents sometimes under light acceleration. This is a bit frustrating as I am pretty sure it should not be. I am wondering if I didn't hurt something when I originally did the mod because I blocked off the BOV and returns accidentally. This made that very cool sounding surge but pretty sure its horrible for the car! How can I confirm that my BOV's are ok and if they are not how can I/should I go about replacing? Thanks for any help you can offer!
Click to expand...
Welcome there Mase!!  Do you have any pics to share?  It sounds like your wastegate hose is loose or popped off!!
Is there any noticeable decrease in performance?
Due setup in INTRO when you have a chance,thanks. Z
http://www.ecoboostperformanceforum.com/index.php/board,14.0.html
Click to expand...

Thanks Z. I do have pics to share and have been trying to setup intro. For some reason everytime I submit I get a blank white screen and it never makes it in LOL
There definetely is no change in performance based on the venting noise. However, the venting is quite loud. It only does it when I am lightly on the throttle. If I push more it goes quiet and holds the pressure.
 
Can someone help me identify the wastegate hose? It's entirely possible it is loose or popped off.

In regards to the aftermarket BOV...do folks do this just for sound? In the past I have run Turbo XS RFL, and HKS SSQV in my cars.
 
                                                Tial BOV. Z
dkrWY15h.jpg
7MyvCBQh.jpg
rCptgzyh.jpg
                           
                  Wastegate hose high-lighted in RED.
 
Wow...them pipes are sexy! And that Direct port injection...very impressive. I just got done working with Jason at Livernois about that...just cannot afford all that with as little knowledge and support I have in this area LOL

Curious why and how you went with the Tial? What kind of pipes are those? VERY nice!
 
I know for sure LME does not recommend BOVs.  They really are for sound, though some would argue it also prevents crud from reentering the system.  Definitely check the small hoses atop the manifold tho.  A lot of them are not clamped, so they can come loose sometimes.
 
Pulled the airbox out tonight to do the thermostat. While I was operating I checked all hoses/lines and all appear secure. Really at a loss what could be causing it to vent only under light load. I have thought for the longest time it was just a symptom of an automatic car but it seems more and more like I might have hurt the BOV(s) when I fudged the capping of all four nipples...Thanks for sharing that link. Those hard pipes are very sexy but very costly. I may have to wait on them until a rainy day!
 
Mase said:
Really at a loss what could be causing it to vent only under light load. I have thought for the longest time it was just a symptom of an automatic car but it seems more and more like I might have hurt the BOV(s) when I fudged the capping of all four nipples...
Click to expand...

My XSport does this occasionally as well. It's particularly noticeable when using cruise control up a light grade. It seems that the BOV noise coincides with the controller reducing throttle, which makes sense. If I wasn't VTA, I probably wouldn't ever notice it (no noise).

I put the breather filters on my BOVs and that muted the sound some for the light load blow off events, and made it substantially less annoying.

I'm not convinced that what you're experiencing is anything other than "normal." :)



Sent from my iPhone using Tapatalk
 
@- Mase would check the front/rear BOV to see if the Diaphragm is not torn and causing your issues. 2-8mm socket.
I would love to see some pics of the engine. Z

lsJCF5Nh.jpg
ddaYb7Eh.jpg
 
Woody said:
As another alternative to those interested, I only disconnected from the BOV side and left the intake side of the tubes attached.  I then found the appropriate size "plug", which turned out to be a 1/2" PVC Cap.  I pushed the caps into the tubs and pulled the clamp back up over the caps.  Seems to be working well so far, and should be easier to reattached to stock if I want to for warranty work.
Click to expand...
Do you have a pic? Interested in this


Sent from my iPhone using Tapatalk
 
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