[Stay Focused]

No. The solenoid is capped. The line that went to solenoid is now going to delete kit. My delete kit came pre tapped so no worries there (Steeda)


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[Drunkmanhere]

Doing mine later today with the Steeda delete kit. Cant wait to get rid of the constant BOV sound on the highway. Also installing a Steeda cold air inlet intake. Btw on Sale right now for $140. No way I would ever spend more than that.

 

[thadarkjinja]

Hi everyone,

Wanted to put together a proper "How to" for moving the blow off valve over to natural vacuum and removing it from the stock solenoid. Hopefully this helps anyone that is looking to make their Turbosmart or Boomba BOV blow off properly! This might requiring adjusting your BOV after the install to adjust it to your desired BOV preference.

Shout out to a fellow ST member for letting me use his car to complete this write up!

Parts required:
1 - 3/16" Vacuum cap (NAPA Auto is where I picked up a 5 pack for $3)
1 - 2 feet of fuel line 3/16" ID
1 - clamp
1 - Sound symposer delete kit with vacuum port or CPE
( cp-e™ Ford EcoBoost 1.6L & 2.0L Turbo MAPtap™ - cp-e™
cp-e™ BlockD™ Ford Focus ST Sound Symposer Delete - cp-e™
COBB Support )

Tool:
pair of pliers and cutters
8mm wrench to remove the sound symposer delete
maybe a 7/16" wrench to put on the barb

(Picture shows a barb we has that we picked up from ACE hardware because he didn't have the barb that came with his COBB SSD, for reference if you need one it is a 1/8NPT with a 3/16" barb part number is in the picture 4504130)

View attachment 352627

Next picture is just reference to show what it should all look like stock:

View attachment 352629

1) Unplug vacuum line going to the BOV from the solenoid

View attachment 352631

2) Using a vac cap, cap off the solenoid port that the line was removed from

View attachment 352639

3) Remove factory soft vacuum line from the hard line and replace it with the 2 feet of soft line and route to MAPTAP or sound delete vacuum source

View attachment 352641

4) last one is just to show the location of the sound delete and how the line routes to it's location.

View attachment 352643

Thanks
Nick

thanks for the write up. just got it done, and it makes a huge difference!!

 

[greecoboost]

Possible dumb question: Is it worth doing this if you're only running an intake and factory BOV?

 

[greecoboost]

Possible dumb question: Is it worth doing this if you're only running an intake and factory BOV?

Bueller.. Bueller??

Anyone?

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[EVH]

When I first hooked mine up like this, I was still running the Mountune BPV, which is basically a better-built version of the stock BPV; I didn't really notice much of a difference since it's still relatively quiet, but it certainly vented less. Shortly thereafter, I switched to the Boomba Adjustable, and finally to the Turbosmart 50/50.

 

[greecoboost]

When I first hooked mine up like this, I was still running the Mountune BPV, which is basically a better-built version of the stock BPV; I didn't really notice much of a difference since it's still relatively quiet, but it certainly vented less. Shortly thereafter, I switched to the Boomba Adjustable, and finally to the Turbosmart 50/50.

I've considered both the Boomba and Turbosmart 50/50. The Boomba seems too hissy sounding. What did you think of each? @EVH

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[EVH]

For me, it's the Turbosmart 50/50--I should have just bought it to begin with.

 

[Ryry]

Thanks for this. I bought a used 2016 and was confused by the BOV going off regardless of how throttle was let off. Pulled the wheel and saw the previous owner had installed a Turbosmart BOV.

Purchased the amazon symposer delete and some 3/16 line at the shop. What a difference! Now I did the symposer delete at the same time so I’m not sure what had the biggest effect. But the BOV functions much more predictably and I can absolutely hear the turbo flutter at times.

many thanks to those that took the time to throw the pics up! If you’re not sure you should do this, you should.

 

[Swiffer90]

So does the symposer delete make your bov not go off at all or what? Haven't heard my bov since the delete. Is there something I missed doing or what? Car runs fine so idk.

 

[Skykri]

Which valve do you have? You may need to loosen it a little bit.

 

[130091]

Sorry to bring up an old thread, but can the solenoid and old vacuum tubing be removed after going to natural vacuum?

I just did the purge valve mod and I have the vacuum/boost tap option available so I wouldn't need to run extra hose back to the original hose route.

 

[SSgtjrobertson]

Sorry to bring up an old thread, but can the solenoid and old vacuum tubing be removed after going to natural vacuum?

I just did the purge valve mod and I have the vacuum/boost tap option available so I wouldn't need to run extra hose back to the original hose route.

Just cap it off. The PCM is still looking for it.

 

[lozt247]

Can anyone please recommend a blow-off valve that works with true vacuum? Currently, I have a GFB DVX adjustable bov. People are telling me that it is bad to run on true vacuum.

 

[beretta96]

I installed a Tial BOV about a month ago. Over the years it seems to be accepted as the quietest aftermarket option.

I ran it off the hot side charge pipe. I used the 3P hot side charge pipe since they weld in a bung for the Tial BOV.

I got my OEM diverter valve block off plate from CPE. I am running the Tial off natural vacuum coming from a nipple installed in the symposer delete plate. I bought the vacuum hose running from the symposer delete to the Tial from Amazon. I think it was from Evil Energy.

Everything seems to be working great. I’d do the same thing if I were doing it all over again.

 

[beretta96]

…People are telling me that it is bad to run on true vacuum.

Lots of here haven running BOV’s off true vacuum for years with no negative side effects.

 

[MtnMan]

Can anyone please recommend a blow-off valve that works with true vacuum? Currently, I have a GFB DVX adjustable bov. People are telling me that it is bad to run on true vacuum.

I don't think the GFB will hurt anything running it on true vacuum. 🤷
It will just work better if you actually follow the instructions to adjust it and set it up.

I had the Turbosmart BPV on true vacuum before and the GFB is better IMHO.

Mine does NOT blow off a lot on the stock solenoid, but I do have an aftermarket tune.

Are you going for true performance or seeking a noisemaker to suit your preference?

Also keep in mind servicing. If you just don't want to mess with it, running any open in the stock location requires regular cleaning and service.
Ones that install in charge pipes might be in a better location, but you still need to read their instructions before buying a different valve or you might again be disappointed.

 

[EVH]

Digging-up an old thread with a Public Service Announcement. Be sure to check the cap on your Boost Solenoid if it's been on there for a while. I was having an issue with building any real boost and I thought maybe I had a small hole in one of my charge pipes. After finding everything was fine there, I went up top to have a look around and found that the vacuum cap that I put on the Boost Solenoid had deteriorated and split. Luckily, I bought a pack quantity of them when I originally did this set-up several years ago.

 

[stformeffst]

So i may or may not have totally ripped the nipple off putting the cap over the vacuum port. I also may or may not have cut a tiny screw down, dipped in rubber cement, and installed in the hole where the nipple was. Oops.

 

[stformeffst]

Sometimes my hopes and wishes overcome my common sense. The car sounds great. Im going to order a new sensor just for peace of mind.

Also, got my 1st migriane in over a year this afternoon. Ugh!