GFB DV+ Diverter valve overview
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- čas přidán 10. 07. 2024
- By retaining the factory ECU control and recirculating the vented air, the DV+ is a purely
performance-oriented product that offers the following benefits:
Sharper throttle response
Faster boost recovery on gearshift
Solves boost leaking issues
Built to last
The piston has a design for perfect sealing every time and guaranteed not to leak
More boost means more power, plus lifetime warranty with all GFB Go Fast Products
US Patent Number 10077709 US design patent number D871552 Chinese Patent number CN206054094
Registered US Patent, Chinese Patent, Australian Patent, US design patent , Worldwide PCT Patents Pending
Check for your car here on our parts finder gfb.com.au
More info here gfb.com.au/products/blow-off-... - Auta a dopravní prostředky
Great video mine is getting installed now. Been getting some boost pressure issues when lifitng off the accelerator in 3rd gear. I hope this product will resolve that problem and more happy power avilable all the time.
Can't wait for mines to arrive
Just installed mine in my Mk3 RS. Great response, no flutter from WOT to Closed Throttle at high RPM, just slight at low boost/low rpm which is normal. Definitely feeling the better response and boost retention between gears. Ace stuff!
Glad to hear you're loving the DV+! Thanks very much for getting in touch
@@gfbvideos hi this product you show in this video has 1 vent hole in the spacer around the brass piston but you also have another video that has the DV spacer housing with 3 vent holes in it? what's purpose of this?
@@JH-sc7cs When the solenoid is directly mounted to the valve, the piston with a hole in the center is required since only pressure is used to actuate the valve. When the solenoid is remotely mounted (usually a 3 port solenoid) a hole is not required in the piston since the valve is actuated using pressure and vacuum. Both have the same performance, but actuated using different methods.
Mine just arrived in the mail. Even the packaging of the kit is impressive! Cannot wait to put it on my car!
Installed mine on my 17 Camaro 2.0t...and now not only is boost retained but it now pulls over 6000 rpm like a NA engine...Thanks guys.
Thanks very much! We're glad to hear you're a fan of the DV+
@@gfbvideos It will also work on the 2016-19 Chevy Cruze 1.4L LE2 and 2016+ Chevy Malibu 1.5L LEV Engines since the turbo and engine is the same! The valve is also the same as the GM 2.0L LTG Engine.
@@seangowan7441 Thanks very much for letting us know! if you've got any photos of the valve installed on your car and would like to send them to us, we'd love to see them. You can email support@gfb.com.au
Just purchased one of these for my recently purchased Sentra Nismo; noticed throttle response on it isn't great, as well as losing boost quickly. This seems to be what is needed to fix these issues; arrives Tuesday!
When an OEM valve has failed you will definitely notice poor throttle response and slow boost onset. The DV+ will certainly fix and improve the issues associated with the OEM diverter valve. Hopefully your issue is with the OEM valve, in which case you should be sorted out in no time!
Installed in Giulietta 940 (1.4 multiair)
Absolutely fantastic!
Long story short: Easy to install. Only took 10min. There are videos on YT to show you how to do it, but the instruction on the manual is very good as well. Lucky for me, the valve location is very easy to reach.
Transmission: It is design to optimise how much boost to loose. It is said to improve a lot for manual transmission. Mine is a TCT auto, and what a difference! The G, being a 1.4L turbo, is not that fast, and turbo lag is horrendous. The TCT box is slow to shift. I thought it was the gearbox, turns out it's the boost leak from original factory valve. With the DV+, it shifts just as you need it (without having to tell it to).
Acceleration: Now that it got all the boost it needs, it goes like a Maserati (really press you into your seat). Before install, I usually prefer switching to Dynamic mode just to drive normally when I have filled the car with adults. Now, I can do it in Neutral and doesn't feel sluggish. Starting the car takes about half a sec. off. Stop start is quicker to engage. Downshift improved from 2 gears down to 1 gear down when going on ram to freeway. You don't have to step as deep on the pedal as before.
I have only got it for 3 days. I suspect fuel economy will improve in the long run. Will report it if I have significant gain.
Highly recommended!
Glad to hear you're enjoying the DV+! Thanks for your feedback!
I also own a 1.4 Giulietta and thinking of putting one of these in alongside to compliment my GSR induction kit to reduce some lag and get more turbo flutter.
Big thanks for the report from one G owner to another 👍🍀
Hi, is it suitable for peak 2.2 bar boost pressure and 2 bar cont. for 1.4 tsi twincharger (2013 CTH ibiza cupra)
will the gfb be able to handle this boost efficiently ? or I have to continue with other brand xxx with blue spring ? Waiting to hear you soon
Hey can you guys recommend me to an installer in NYC? I can't find anyone who knows how to get the valve off without removing my turbo first and charging me way too much for the labor of doing that
hello you have something like this for hyundai i30 n line 1.5 159hp 2022 model?
I loved the original, gfb for my mk6 gti. But bought the gfb plus blow off valve all in 1 and it's awesome.
Does it still make the TSUTSUTSU sound like the original though as he says its silent
@@ShutUpBubi yes it's also adjustable, but I put mine on the loudest setting. Makes a loud air releasing sound. Makes people jump when there walking on the road an u drive by.
Lewis Berry how to u adjust?
@@ogog861 on some of them there's a slider,but I believe on mine it was internal like a screw. Like I said it's probably 1 of my favorite mods, specialy when u scare someone walking on the sidewalk
Hope that helps.
Lewis Berry I got the the same as the video for my bmw n20 and there’s no adjustable ?? Where!! Help me sir
How often does the dv+ piston need to be oiled to avoid it seizing? Thanks.
The piston only needs to be oiled on installation. Once in, it should not require regular maintenance. If you have a particularly dirty intake, you may need to clean it every so often, but this is not common
Hey 👋, fitted one of your DV+ valves recently and it works great but im wondering why/how its quieter than my stock valve ? Im guessing it’s because it closes faster so lets less air recirculate?
There are a few reasons you may find the DV+ change the sound slightly. It will depend on what noise it was, and why the stock one was making noise as the should (if everything is stock) be almost silent. If you can contact our engineers at support@gfb.com.au with some videos of the sound you're talking about they'll be able to explain further
One more quick question. Do you know if the throttle closes on a DSG equipped VW during gear changes (mainly upshifts)? I know that in a manual, you would usually take your foot off the throttle briefly during upshifts. So, the diverter valve would open. But, on a DSG, I'm not sure it does. I'm also wondering what tells the diverter valve to open. Is it the TPS, manifold pressure readings, or what? I'm just trying to figure out if the DV+ is more beneficial for manual transmission cars vs. DSG equipped cars. I'd love to hear your thoughts.
Hello,
Generally the throttle plate will not close during gearshift on a DSG equipped vehicle. One of the advantages of a DSG equipped car is that you're not closing the throttle and losing any boost pressure during gearchange.
So the benefits in terms of throttle response will be more noticeable on a car with a manual transmission than one with a DSG or automatic gearbox. The benefits will be felt when feathering the throttle for example during cornering, but there isn't that loss on gearchange with your DSG gearbox for the DV+ to improve on. The opening of the valve is determined by a number of sensors including those you mentioned, the ECU can also open the valve in some situations to improve economy.
You will of course still get all the other benefits like it's ability to hold boost better, and reliability over the stock valves.
After I install it I only have compressor surge sound, the spring is to hard ?? I have a 335i
Hello,
If you're having problems with your DV+ valve please contact us at support@gfb.com.au
Installed mine on my MK3 focus RS and I’m getting a p0299(under boost condition) 23psi target, actual is 15psi. I’ve double checked my install and it all seems good any suggestions?
For technical help please contact support@gfb.com.au
Installed it on my BMW N20 engine. Feels slower than before, lot more turbo lag. Power builds up in high range but in low ranges power delivery is very sluggish. Installation error?
Sorry to hear you're having car trouble.
For technical support please contact our engineers at support@gfb.com.au
Does this throw an engine code on a mk6 gti?
I’ve heard that it has on multiple occasions for other cars
In some rare circumstances, the ECU may not be happy with the secondary spring used in the DV+. If that is the case, it can simply be installed without the secondary spring to closer mimic the operation of the OEM valve
put one on my chevy cruze.
definitely feel the difference
@GFB Why don't you have a product for the Biturbo V12 Mercedes M275??
To put it simply, we've not had an M275 in the workshop! However, there's a better-than-good chance our T9354 DV+, T9454 VTA, and the T9654 DVX will fit. Contact us through our tech support and we can discuss in detail.
@@gfbvideos ah yes, Mercedes just uses the standard mechanical vacuum/diaphragm with beige plastic cap that come stock on BorgWarner EFR & KKK recirculation valves (as seen in part 5900711000 and 179424) the vacuum hoses just lead to separate inline solenoids.
i ordered today for my peugeot 208gti.... will it still work with the Racechip gts?
Yes that will be fine. A chip tune should not affect the operation of the valve
Hi, my mk5 gti ed30 isn't boosting as it should and feels quite flat through the rev range. I had a look at the dv+ and found the plunger o-ring to be deteriorated. Would that have any relation to the car not boosting as it should? Thanks in advance
Hi Mitch,
A damaged plunger O-ring could definitely cause issues with boost holding. We do have a lifetime warranty so we'd be happy to help you out with that. Can you please contact us via our website so we can get some more details and sort that out for you?
gfb.com.au/company/tech-support/
Is it gonna work for an 08 audi a4 2.0t with a bigger turbo? Specifically a GT2860RS? I'm thinking a newer DV but dunno if this'll work
The DV+ will work with some turbo upgrades for that platform. The GT2860RS however doesn't appear to have any provision for a diverter valve There will be a couple of potential methods for installing a diverter valve to your car. For more information specific to your situation please contact us via email at support@gfb.com.au
Hi, i had installed this on my car it throws P0039 Code and the exhaust crackles is gone .
any idea why? when i remove the gfb valve everything back to normal no code and the crackles is back..
Hi Aiman,
For technical support specific to your situation please contact support@gfb.com.au
f20 n13 engine here, 2.1k to 3.5k flutter noise is it ok?
most importantly DME shadow code appear on saying DV stuck Closed.
can I be ignore this issues?
Hi Bizzy,
I believe this issue has been resolved with our technical support team via email is that correct?
Hi potential buyer here, am i still getting my "pshhhh" sound when I lift of throttle with this upgrade?
Hello,
It will depend on what valve you're currently using. If you're using a re-circulating valve like the OEM one, and the noise is coming from an aftermarket intake upgrade then yes this will give you to same noise.
If you're using an atmospheric venting valve and swap to a DV+ you may lose some of the sound. If you're wanting to vent to the atmosphere we may have something suitable. You can search your vehicle on our website, or contact us at support@gfb.com.au and we can give you some more vehicle and application specific information
I put mine on, my original wasn’t broke but I hoped I would get some noise out of it but there was no noise change
Hi Jason,
The DV+ is designed to be a performance oriented replacement for the factory valve, and improve some of the reliability issues with the design. It is not designed to make noise. Depending on what vehicle you have, we may have an atmospheric venting valve available. This would give you the noise you're after
@@gfbvideos that would be great if you did, I’ve a mk5 gti 2007 if you had one I’d buy one
@@jasonseery4885 We do have an atmospheric valve available for the Mk5 Golf GTI. The part number is T9451
Hey, Brett. Since my last comment, I have done a stage 1 tune on my Mk5 GTI dsg. I currently have a stock version G (the one with the rubber diaphragm) diverter valve on the car. It doesn't leak, but now that the stock turbo is providing around 18 psi of pressure as opposed to the stock boost pressure (around 8-10 psi I would guess), I'm getting what I assume is compressor surge. It only occurs on throttle lift-off after a low RPM pull under full throttle or close to it. It's not the full "fluttering" sound, but more of a shorter "squash" sound. My question is, do you think the GFB DV+ will eliminate this low rpm squash or if I should even worry about this since it's not a high rpm high turbo speed/rpm condition. Also, I still don't understand how the DV+ opens 20% faster than the stock dv valve. I understand how it holds boost better since it closes almost immediately but it appears to open when the cpu tells it too just like the stock dv valve. Any info is greatly appreciated. Thanks.
I'll address the opening speed question first. Yes, the ECU still triggers at the same time, but the DV+ mechanically opens faster than the factory diverter once the ECU triggers. This is because on the stock diverter, the solenoid must move the piston directly, through a stroke of 5mm. On the DV+, the solenoid's stroke is only 0.8mm since it only needs to move the plunger, not the piston. Once the plunger opens, the piston in the DV+ overtakes the piston in the factory diverter to open fully 20% faster. We are talking fractions of a second, but faster nonetheless.
However, there is a bigger factor here. The stock Rev G is likely not opening fully in your case. It is very common for the rev G to only partially open at higher boost pressures, which is likely why you're now hearing surge. In this case, a DV+ will cure the sound you're hearing. Note also that a tune on the Mk5 will make the turbo spool more aggressively at low RPM, and it does make some different sounds when lifting off at low RPM when the boost is not at maximum, stock DV or not.
@@gfbvideos Sounds like my problem might just be the sound of the boost going into circulation when the stock rev G diverter valve opens at low rpm. I probably didn't notice it before the tune because the boost pressure was so much less. I did recently remove the diverter valve to check for leaks. I cleaned it and inspected the diaphragm. No holes. So maybe it is working correctly. The only way I'd know for sure would be if the turbo had an rpm sensor directly on it that could be monitored by an obd II app, I guess. Do you know of any other way to monitor for surge? Like an obd app that can show graphs for boost pressure spikes or turbo rpm stalls?
@@quesnoy1 Graphing boost pressure can show surge, but you would need to monitor with a relatively fast refresh rate and I'm not sure if the OBD apps will do this.
The easiest way to tell is just to listen. If it's making a fluttering sound then it's almost always surge
If im looking to increase turbo noise does this diverter valve impede that progress?
Hi, the DV+ is full recirc and is not able to vent to atmosphere, meaning that it wouldn't be able to make a "whooshing" noise when coming off throttle.
Can I use this on a e250 cdi I like the dump valve noise how loud is this
Hi Hasnain,
This product is fully re-circulating and therefore does not make the dump valve noise. If you're after something that does you can check our VTA range. I don't know what year model your car is so I can't tell you if we have something to suit, but you can use the vehicle selector on our website to find out
I just installed it today correctly, took me 5 hours but let me tell you something, I feel like my throttle response is weaker than before and I don’t know why but my shifts are way smoother. But overall I feel dissatisfied. I made sure that I bought it from an authorized dealer tho (it’s genuine) BMW 320i N20
Hi Mohammed,
Sorry to hear you're not happy with the valve.
Can you please contact us at support@gfb.com.au for technical assistance.
We will need some more information about your car, modifications done, what transmission you have, if you installed the optional spring etc.
@@gfbvideos I immediately copied and pasted my comment into an email via contact is on your webpage, but still haven’t gotten any response, 320i 2015, zf 8 speed transmission and I installed the optional spring
@@MohamedTarek-qm3vf Hi Mohammed,
Try checking your spam folder perhaps? I have replied to your email so you should have received it by now.
I want to instal this on a 2010 r56 s model, will i get the pshhh sound?
No, this is not a blow off valve as such in that it doesn't vent to atmosphere to make the pshhh sound. If you have an aftermarket intake you'll hear a subtle exhale, but that's about it. This product is for performance rather than sound.
Available for Proton X70/ Geely Boyue? Thank you.
Hi Vic,
Unfortunately we don't have any confirmed fitments for those applications.
Can I install a diverter valve spacer to have a louder blow off on this product?
Yep, as long as you have the room and the longer bolts you can stack a DV+ on top of a BOV spacer for sound. If you haven't purchased either, I would suggest taking a look at our VTA range, which is an atmosphere venting version of the DV+.
Hi, I just got one for my BMW F20 116i and the turbo lag has increased 😕 I am thinking to take it out, unless you got any idea what I could do to fix it?
Hi Slav, I've just replied to this question in tech support. The additional information you gave me in that email indicates to me that the lag is a secondary issue. Once I get more info I'll be able to help you sort it out.
Glad we could help diagnose the issue via tech support. For the benefit of others here on youtube, it turns out Slav was sold a counterfeit DV+ and it had no hope of working properly. Because the DV+ looks simple, it's tempting for other manufacturers to copy it, but trust me when I say there's more to it than just making it look the same - we deal with many customers who have been misled and have purchased fakes, and can't get them to work properly, so make sure to check where you're buying it from!
i just seen one video on it ... the guy took it off as you keep have to oiling the pistion every so often is this true
This is a myth as periodic maintenance or re-lubrication of the DV+ piston is not required. Once the DV+ has been used for about a week the microscopic machining high spots are flattened and smoothed. The DV+ will continue operation almost indefinitely without wear, irrespective of lubrication.
If the small hole in the center of the piston's silicon face is always open, how does the dv+ prevent boost from leaking out past the sides of the piston? Is this where the light coat of oil comes into play? I'm sure the tolerances between the piston and the aluminum housing are very tight, but it's not an air tight fit. If it was, the friction would prevent it from moving at all...
Hello,
Yes that observation is correct. With any piston style valve, there will be some amount of air that can leak past the sides of the piston. Otherwise it wouldn't be able to move. The only way to completely avoid this is to use a diaphragm. Whilst diaphragms seal well, they are prone to breaking over time, especially with increased boost pressure. OEM valves used to be a diaphragm design, but they too swapped to a piston design for the most part.
The key then, is minimizing the amount of air that can leak past the piston, whilst still allowing it to move freely. On the DV+, this is done by holding very tight tolerances and individually sizing the piston to the bore, to ensure the perfect fit. OEM piston style valves however can't be held to these tolerances and tend to leak quite a lot.
@@gfbvideos I would imagine that light coating of oil you advise placing on the piston can also lower the amount of air leakage, correct? Aside from that, unless the leak is extreme (like it is in my current piston style valve) maximum manifold pressure will still be maintained by the turbo and waste gate, right?
@@quesnoy1 The oil can play a part in reducing leak, but it's main purpose is lubrication. Even without oil the leak is still far too small to cause any change.
If you think about an engine on boost that's consuming a few hundred cubic feet of air per minute, a leak down past the piston will be a fraction of a cubic foot per minute which makes up such a tiny portion of the airflow that the turbo sees.
If you're interested there's a technical write up that can be found here
gfb.com.au/wp-content/uploads/2019/01/GFB_DP_Diverter-leak.pdf
Hi, I am interested DV+ for my Suzuki swift sport 1.4T hybrid 2021, is there any to fit on this car?
We don't currently have any confirmed fitments for that vehicle. If you want to send some photos of your factory valve to support@gfb.com.au one of our engineers can take a look and see if we may have something to suit
Hi! Ordered one today through a Swedish company called DO88. (NR T9351)Im curious though, if it will fit on my car? Its a Vw Golf Alltrack 2018 with the 1.8 TSI EA888 3d gen. Please advice, hope I bought the correct valve. Thanks!
Yep, T9351 is the correct valve for your Alltrack.
@@gfbvideos Thanx mate 😀. Tomorrow, its time for installation!
Question does the DV make a sound like a BOV?
Hi Aadam,
The DV+ is a fully re-circulating valve so it is not designed to make noise. If you're after something that vents to the atmosphere to make noise, check our website for other models that may fit your car such as the VTA or DVX
can this work on a subaru sti wrx 2015 stock?
Hi Montej,
The DV+ range is not suitable for the WRX. We do have a number of different valves available that will suit your car. If you head over to our website gfb.com.au/ and enter your vehicle details, it will show the products that will suit your car.
Hi, bought one last week and installed it. Stock I had no issues but I have plans to go stage 2 in the near future with more boost. With OEM valve I had surge / bird sounds from under the hood. But I still do with your upgrade? Could you explain? How can I check if its working correctly? I have boost / power. TTRS 8s daza 2018
Hi Mark, good question. The DV+ flows much more than the OEM diverter valve, and will not blow open when you increase the boost pressure, therefore you will not get any off-throttle surge sounds.
I would like to hear this with a cowl induction cold air intake from 2J-racing.com
2020 EcoBoost Mustang here. Would you recommend this?
I was going to get a BOV but I think the constant whoosh sound every time you let off the gas would be more annoying than anything. Is this Diverter Valve less obnoxious?
Hello,
The DV+ is a much more discreet option than a BOV. Unfortunately though, we don't have a DV+ or VTA available to suit the 2020 model EcoBoost Mustang. This model uses a different design of valve which is not compatible with our products
@@gfbvideos OH darn!
Thank you for the information though =)
@@gfbvideos, that’s odd.. several resellers/dealers have a model listed for sale for 2020 and newer EcoBoosts. Is this really the case? I just ordered one for my 2021, so if there is truly not a version that is compatible I will need to cancel my order.
@@semper.fidellis The valve will not fit the 2019-on EcoBoost engine in the Mustang. Different EcoBoost engines in different vehicles have different valves, so there may be some confusion when looking for an "EcoBoost valve" as this term would encompass quite a few products. For the Mustang specifically though, there is no valve we currently have available for the 2019-on models.
If you'd like to confirm this you're welcome to send some photos of your stock valve to us at support@gfb.com.au and our engineers can take a look at it.
I own a 2017 Sentra Nismo . Sadly I bought the CVT version which I now regret . Anyways I made a few mods so far. One of the first ones was the GFB DV+ and after the install I felt as if the car was more sluggish , throttle response feels slow compared to OEM .
Any recommendations? I return the OEM set up back but still feels sluggish . Any idea what it could be ?
Hello,
If the sluggish feeling remained after re-installing the original valve then it's unlikely that the problem was the valve in the first place. It may have been something knocked or damaged during the installation, or something else entirely.
If you're not confident in diagnosing the problem yourself, I would suggest taking your car to a mechanic to have them check it out
@@gfbvideos I was thinking the same or else I would been fixed once I switched it . Will this DV+ increase the sound while boosting at all? Don’t worry I know that’s not the purpose of it but rather to hood boost better and better response. I was just wondering if one can expect a different while boosting .
@@Lio88 While on boost the noise should be identical as both the stock valve and the DV+ will be closed.
Suitable for Passat standard factory engine or suitable for upgrade engine..
Hi Amran,
The DV+ valves are designed to work on a standard OR modified engine. You can find fitment information to suit your specific vehicle on our website gfb.com.au/
Could it be used on a stock Gti mk5?
Hi Mark, yes it can be used on stock and tuned vehicles.
Will this fit a vw polo gti 1.8t?
Hi Isaac,
We should have a DV+ to suit your car. You can search using our vehicle fitment tool on our website, or if you're unsure send an email to support@gfb.com.au
can this work for my 2015 x5 n55 engine
Hello,
We do have a DV+ available for your car. There is a "find my car" feature on our website that allows you to enter your vehicle details and will display suitable parts
gfb.com.au/performance-parts-that-fit/998000290/bmw-x5-x5-xdrive35i-f15-n55-engine-2013---on/
I have a bmw n20 engine and I bought the dv+ can’t wait to install it however I have a question, why didn’t you guys develop a blow off valve for that engine and why is it only a diverter valve ? Is there a technical reason for that ?
Hi Mohamed,
The issue with these cars is mainly clearance. There isn't a whole lot of space around the valve, and an atmospheric venting valve requires a lot more room than a re-circulating one
@@gfbvideos any idea why it would have a loud whistle on boost?
@@georgecubbard8553 Hi George,
There are a whole bunch of reasons you could be experiencing a whistling noise on boost. If you'd like to look further into it please contact support@gfb.com.au
@@gfbvideos thank you
Hi guys, question for anyone that could comment on durability after years of use.. I bought a 2011 gti with motor problems, had it rebuilt, it almost done getting tuned and mechanic is telling me I have boost issues.
I'm not exactly sure what I'd expect, if anything to suspect, failing on this whole combined unit. I think he was stage 1 or stage 2 tune, and had it on there for years. My mechanic said he tried a new diverter valve, and actuator, but neither "worked" and upon trying a turbo he borrowed from a friend to install and test how it ran, said it fixed the problem, and I have a bad turbo..
Soo, main question is, after years of usage and being tuned, is there anything beside lubrication around the piston I should focus on, or should I just take his word, and have him swap this dv+ unit from the "broken turbo" to the replacement I find?.. because this part is supposed to replace the faulty cheap part, with crappy diaphragms and plastic, this part should or should be expected to out live a turbo?
Also, HUGE huge thanks to anyone that's willing to respond, any input and information is appreciated beyond belief 🙌🙌🙏🙏.. this thing has been in the shop for about a year 😒 and though the reseaech has been fun, still not as fun as having my car working and able to drive.. anyways, thanks yall
-Nick
Hi Nick, we only recommend lubricating the piston with ordinary engine oil to help aid with the installation process. The piston shouldn't need to be reapplied as a form of maintenance. I'd recommend giving the DV+ a good clean and lubricating the piston with fresh engine oil prior to installation. Check to see if the piston is able to move freely in the bore.
I'd be unable however, to comment whether the DV+ would be able to solve the turbo issues that you've encountered. Your mechanic may have a better idea regarding what is going on with your car as he can actually physically see it. I would be surprised if both a new diverter valve and actuator were faulty - I would suspect a problem elsewhere.
@@gfbvideos alright, I'll definitely inspect it and also try a new DV solenoid and transfer THE GFB part to it. I'll take that and put it on a replacement turbo and tell him to install that to see how it works
Hi it's can be installed on a car with out stage?
Hi Lior, yes. The DV+ can be installed on your vehicle without having to retune your vehicle.
Just put mine in is it supposed to flutter or be quiet
Hi Derek,
The valve should be quiet. There may be some very light flutter when lifting off from low load situations, but in general it should be quiet
Is it kind of hard to press the two together? I was having a hard time installing it and was wondering if anyone else has had any issues?
Hi Justin,
With the tolerance of the OEM plastic part, some solenoids are more difficult to press up to the DV+ than others. We've never found one that didn't fit though
@@gfbvideos awesome thank you definitely gonna try again tomorrow!
@@Justinswhip No problems! Another thing that can happen is that part of the plastic you remove to install the DV+ can break off and stay in the body of the solenoid. These bits will all need to be removed to install the DV+. If you're unsure feel free to send us some photos to support@gfb.com.au and we'll be able to let you know if all the bits have been removed
@@gfbvideos thank you again you guys have been wonderful!
Is there any value to add a BOV in addition to the GFB-DV?
Hi Spencer,
There are some diverter valve spacers on the market that can be used with the DV+. We generally don't recommend this as they tend to be quite restrictive and will often not flow enough. We do have the VTA series of valves available for some applications that will give you all the performance benefits of the DV+ with that BOV noise.
@GFB, I’m only interested in adding a BOV for safety functionality, not sound...
Does the part you reference help release boost to the atmosphere? Having additional boost when it’s not being used can place unneeded tension on our turbos. Many believe that tension shortens the life of our OEM turbos.
I have a performance tuned 2017 Lincoln MKZ, 3.0 AWD
Will the part you note fit my car and perform as noted above?
Thank you!!
Hi @@SpencerAndFAM,
The DV+ is a re-circulating valve so it will not release the pressure to the atmosphere. Instead it releases it to the low pressure side of the system, pre-turbo. This performs the same in terms of protection of the turbo, but does so without the noise.
We may have something to suit your vehicle, but have not confirmed fitment at this stage. If you have some photos of the OEM valve and would like to send them to support@gfb.com.au I'm happy to have a look at it for you
@@gfbvideos I have the same question using the DV+ with a BOV adapter but I have a 2020 Ecoboost Mustang. Any recommendations?
@@wrecker1861 Unfortunately the 2020 Mustang uses a different style of diverter valve that is not compatible with the DV+.
does it throw a cel for a stock tune car?
Nope
Hello,
There is a small possibility of a P2261 code being triggered when using an aftermarket valve. This is because the valve will close earlier than expected by the ECU, in order to preserve boost pressure in the intercooler and piping.
If you do experience this code, you can simply remove the short fat spring that goes behind the piston. This will make the valve act more like the factory valve, and stop the code occurring.
You can find more information in the instruction manual
Should I lubricate it with some oil?
A small amount of engine oil on the piston is helpful on installation, but this is purely for installation. Once installed no oil or maintenance is required :)
GFB Thanks!!
GFB i dont hv engine oil with me , does bicycle lubricant work ?
fariz just install dry no oil needed
My DV+ is on the way and wondering will my spacer fit with this also?
Hi Feliepe,
The DV+ will fit with most aftermarket spacers. We don't recommend this however, as the spacers we have looked at appear to be very restrictive and may not allow the valve to vent enough air.
Which part # works with a 2016 VW Jetta S 1.4 TSI?
Hi Francisco, If your car is twin charged, our part number T9355 will suit your car, please find the link below.
gfb.com.au/products/blow-off-and-diverter-valves/dv-plus/t9355-suits-late-model-vag-euro-applications/
@@gfbvideos awesome! Thanks for the quick reply ECS tuning website has this part listed not fitting my car, must be an error on their end but thanks for the information. Would you happen to know if I’d have to take this part out and put the stock one back in place before I’d have to smog my car in California? Just curious if you would know that I’m still planning to put it on.
@@frod116 We are currently applying for certification in California but do not have it yet.
@@gfbvideos that’s good to hear hopefully you guys get it.
@@gfbvideos so apparently my 1.4T is the predecessor of the old 1.4T that use to be twin charged my engine is single turbo. Would this still work or is there another model for me?
Wish I wouldve known I wouldn't get any extra cool sounds with my upgrade...?? 🤨 So even after I throw my CIA on I wont get anything?? All I wanted until my stage 1 is installed?? Bummed.
Hi,
The DV+ is designed as a more performance focused re-circulating replacement for the stock valve. It doesn't vent to atmosphere and isn't designed to make noise
An aftermarket intake can help enhance the sound with a re-circulating valve, but it won't be as loud as if you were venting to atmosphere.
For some applications we do have atmospheric venting valves available. If you put your vehicle details into our website you can check out a list of parts that are suitable for your car.
If you need any technical help, or have any other questions feel free to send us an email at support@gfb.com.au
@@gfbvideos thank you. And I appreciate the feedback. And I'm aware I actually can't use a BOV on my Jetta, as of yet anyways. But I did order and aftermarket intake as well, so that's somewhat reassuring. Just trying to have a little fun with the 2015 TSI Jetta 1.8 (Manual). Not trying to get too crazy, just a daily driver with a little something extra. I was really hoping for a little "blow off" type of sound but in the end I know I'm getting a quality product so not mad at all. Just gotta love that "skooooshh" sound! Haha Thanks again for the feedback. Just got my part today, I'll be putting it on tomorrow. Intake on the way. Look forward to it. Thanks again.
@@awkwordone3305 An intake will help a ton with turbo noise. -ive got a mk6 gti
So no whooshing sound?
It makes more of a 'yeee yeee' sound, with the occasional 'tsk tsk' heard as well.
@@MendicantBias1 oh really, thanks for the info. I really need to hear it before buying but can't find anyone on CZcams showing it
@@motorcyclerescuer czcams.com/video/jABHkFoZgzQ/video.html here it is
@@ralazx138 is that the sound. It sounds great. What I have in my Peugeot rcz sounds bad.
motorcycle rescuer yeah i have it for my bmw and it sounds different on that car?
Main question that nobody can find on the forums or even google! "DOES THIS WORK WITH PWG or PNEUMATIC WASTEGATE?"
Hello,
I'm assuming you're referring to a BMW N55 engine?
If so they yes the DV+ is suitable for both the pneumatic and electronic wastegate versions
@@gfbvideos almost all turbo engines before 2014 came with pwg so not just the n55. All n54s still uses pwg
@@raidacaipo I understand that but we don't have a valve to suit the N54 engines. If there's a specific engine you're interested in it would be good if you could let me know which engine that is.
As a general rule though, the wastegate actuator has nothing to do with the diverter valve so provided that we have a valve to suit that engine it shouldn't matter which wastegate actuator it has.
Is it supposed to be silent or is it meant to make blow off noises?
Silent
czcams.com/video/jABHkFoZgzQ/video.html
looking for to buy in the united states.. Who carries them.
Thank you for your enquiry, please refer to our dealer list in the USA on the website www.gfb.com.au. There are counterfeit products out there which is why we recommend you buy from an authorised dealer on the website.
I really wish I did not waste the money I did on this. It just won't work properly. Tried all support suggestions and none actually worked. It will flutter and give errors every time. Went through about 10 times installing and uninstalling on my car.
Sorry to hear about your issues with the valve. Please feel free to contact our support team at support@gfb.com.au regarding any technical support issues. There we will be able to give you tailored support to suit your specific circumstances.
@@gfbvideos I really do hope there is a solution. And really hope it doesn't cost me more than it already has (been through mechanic 4 times, wasted my time unstalling and installing 10 times and cant use my car on full throttle or else it will give errors and make the turbo to "turn off").
@@Quetzasp We've replied to your email. We do have lifetime warranty on all our parts so we'll be happy to help diagnose and solve your problem
@@gfbvideos Harrison is indeed helping me alot. Hope we can solve the problem.
@@Quetzasp Thanks very much for your patience! If you have any more issues feel free to email us again
You guys think you are very slick using the oldest d v valve... The newest revised d valve is just as good as this...
Hi Korey,
Unfortunately that's not correct.
The Rev D valve DID solve a lot of the reliability issues that the old diaphragm style valve did have.
The piston style valves like the Rev D however leak all the time, even in perfect condition. The use of a plastic piston and seal means that even straight out of the box these valves will leak substantially.
This leak to a certain extent can be compensated for by the tune, it will work the turbo harder to overcome the leak through the valve. You get the same amount of boost pressure, but because you're working the turbocharger harder to achieve this it is less efficient.
Happy to send over some videos showing this to be true if you're interested. you can contact our engineers at support@gfb.com.au
Could you technically tune the intake pressure required to open the DV by changing the spring rate inside the piston ? That way you would get a little bit of closed throttle surge (purely for sound) but still went the excess pressure that could possibly damage the turbo over time.
Let me start by saying that the following information is not a recommendation by us, and changes you make to the product you do at your own risk. With the disclaimer out of the way, yes, you could increase the spring pre-load slightly to achieve some fluttering when lifting off at low RPM/boost, and still have it vent fully at high boost. However, you will almost certainly get a P2261 fault code. Typically when you get flutter, you also get that fault code, and it doesn't take much increase in spring force for this to happen.
If you are happy to live with the fault code to achieve flutter, then I would not recommend that you do it by stretching the spring - it's irreversible and only small changes are needed. I would instead suggest finding something to shim the spring so you can do it incrementally and reverse the mod if you need to. It will take no more than 1-2mm to achieve a fluttering sound.
@@gfbvideos Got it thanks ! Basically adding a spacer to the spring would be effectively the same (but less conveniant) as using a DVX on full recirc and tightening the ajustement screw ?
@@pascal789456123 Yep, spacing out the spring would do the same as the spring adjustment on a DVX. Just make sure to make small adjustments on the DV+ spring, as a 1mm shim in a DV+ has a bigger impact than 1mm of pre-load on a DVX.
@@gfbvideosFYI, ended up with a 3mm shim on the t9381. 1mm and 2mm had no effect, 3mm gives some flutter. Made a custom 3d printed part out of ASA for heat resistance. Might go down to 2.5 if I get the check engine like stated above.
Btw the dv+ had quite a different vent tone than the stock dv. Stock was more of a pffff (like exhaling with a shut mouth , while the dv+ has a pshh sound.