Am I keeping my GFB DV+? OR time for a Revision G diverter Valve? MK2 Leon 1P1
ฝัง
- เผยแพร่เมื่อ 5 มิ.ย. 2024
- In todays video I'll be revealing whether I am going to be keeping the Go Faster Bits ( GFB ) DV+ Diverter Valve on my Leon Cupra R, or is it time I just bought the well talked about latest revision G diverter valve.
Before revealing my choice, I'll be going out for a run in the car to discuss how the GFB DV+ has behaved for me over the past 12 months.
I'm going to remove and inspect the DV+ to see if it's still in good condition, as the inner piston quite often gets reports of sticking and requiring regular maintenance.
And I'll also be giving a quick run through of the purpose of a Diverter Valve in the engine, and why they're so important.
NOTE
The KO3 turbo's will have the Diverter Valve located on the actual housing of the turbo, but all principles in this video will be the same.
I have the KO4 turbo, hence why my GFB DV+ is located at the front of the engine bay.
I purchased my GFB Diverter Valve from Awesome GTI, a stockist of GFB parts, link for the 2.0 TFSI/TSI version -
www.awesomegti.com/shop-by-br...
A new Genuine Revision G Diverter Valve can be purchased from AKS
www.akstuning.co.uk/shop/home...
The video demonstrating how to spot a fake/poorer quality GFB DV+ can be found here -
• Beware of Counterfeit ...
And my previous Stage 1 remap Video that I feature a clip of in this video can be found with this link -
• Stage 1 for the Cupra ...
Timecodes for the video
0:00 - When I fitted a GFB DV+ to my car...
0:41 - Introduction to the GFB DV+
2:27 - Out the road with the GFB DV+
7:53 - Checking the condition of the GFB piston
10:12 - Explaining what a Diverter valve does
12:57 - Final thoughts, and am I keeping the GFB?
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The way that you explained how the DV works has give me a really good understanding about it 👍
Really enjoyed the whiteboard explanation - everything makes a lot more sense now 👏
Ah cheers mate! It made sense in my head, but was unsure if it made sense when I tried explaining it 🙈😬 appreciate you watching 👍🏻
Thank you. Installing mine tomorrow on my '15 Audi S-line A5. ✌️
Nice one💪🏻, best of luck with it, hope it serves u as well as mine has 😁👍🏻
Great video , glad to see someone is happy with a dv+ 👍Personally I’ve had a dv+ for more than 3 years on my golf Mk6R CDL engine code at stage 2+ and still very happy with it must admit I do remove it for a clean , seal + wear check and lube up every 12 month , just ordered the VTA T9451 as a replacement for 2 main reasons .
After the stage 2 tune the extra boost pressure causes the stock k04 turbo to surge due to the increased volume of diverted air being dumped upstream of the already maxed k04 compressor .
Because of the efficiency of the dv+ it diverts the air very quickly and completely, the problem of the surge / flutter is removed with the VTA option with added whoosh at throttle lift off.
I was planning on ordering new seals springs and piston from GFB after more tha 3 years of operation which are wear items at the end of the day , but went with VTA instead.
Like you rightly said the revG has finally solved the oem issues and you always have that option.
Oh and the roads in the North West are shockingly bad ! Had no idea .
MOT must be expensive on wheels , tyres and suspension with the roads that bad 😵💫
Cheers for taking the time to comment.
Firstly yes, I'm finding the GFB diverter perfect and it's good to hear another owner singing it's praises too. But what u said about the Ko4 being maxed out makes a lot of sense, so if u get a chance, let me know how you get on with the VTA (I'm always on the look out for upgrades 😁)
I will be checking mine annually now on an oil change, just to keep an eye on it, but so far so good 🤞🏻
And yep, roads are falling to bits up here just now. I've cracked an alloy twice over the years sadly. £300 of road tax a year to then spend more on fixing wheels and suspension because of poop roads 🤨
Cheers again Richard 👍🏻
No, that's just normal K04 surge. Only way you can eliminate it is buy sticking in a antisurge core.
That’s explanation was perfect. Nicely done. One thing I’ve noticed is when you’re on boost and you let off the accelerator and then quickly press the accelerator again slightly the DV doesn’t open and you get compressor surge (turbo flutter)
Yeah, I get the flutter quite a lot as well, I'm not sure the exact reason behind it. Cars possibly do it a little anyway, but with the DV+ it's more prominent, and if you've an induction kit, you can hear way more.
How do u find urs for performance day to day?
@@NorthCoastWorkshop yeah I think it’s simple that the DV closes again when you slightly touch the throttle so the air gets forced back through the turbo causing the flutter. Yes I have a oversized ram air filter and it’s actually louder than my exhaust lol performance wise it’s faultless, holds boost perfectly and never leaks
That's good to hear. And yeah what u said sounds right for the flutter noise, the DV+'s just are that responsive. Cheers for watching the vid and taking the time to comment Reece👍🏻
Kev, Awesome diagram and explanation! Tell your daughter thanks for letting you use it 👍
Oh, and yeah, here in South Carolina we have those monster potholes.....we swim and fish in them 😵💫
Much appreciated 😊 and your potholes sound worse than ours 😬 I'm worried what kind of fish you get out of them 🤣
Thank you for watching and dropping a comment 👍🏻
I’ve got revision G in my a3 2.0t fsi with 2 original springs, best idea I’ve had and works even better than the revision G single spring which is already good.
That does indeed sound like a good idea 👍🏻 to help return that piston to its start position fully and quicker 👌🏻
This is brilliant! Thank you so much for this its nice and comprehensive!! I've got a Mk3 Leon but im looking at getting one of these. I've seen GFB have a similar product called a VTA which they claim vents to atm but also still recirculates the air?? not sure how that works!
Glad you found the vid useful. I'm afraid I've never looked into their VTA, but if it still recirculates then it should be fine. I don't think it affects things too much, it's more that the engine management might think it's a boost leak, so the EML might light up.
Cheers for watching 😊👍🏻
Could you show us how did you install the led stripes on the door? Really enjoying the info that you put on the channel. Cheers from portugal.
Hey Ruben, thank you for watching 😊👍🏻 I'm looking to do a video on the LED door strips within the next 2 months. I did the driver's door 3 years ago, but never did any other doors 🙈 and now the driver's door LED strip has stopped working. So yes a full how to video will be out to show how it's done 👍🏻
Always nice to pass another Cupra on the road 😄
😂yeah, it's like "ah Leon frweeends!!" 😂😂
Hey great vid! I was wondering if you could do an exhaust system video? I have a Seat Leon MK2 1.6 TDI and imo sounds so awful, I want to know where you could purchase one?
Hey Nadeem, Cheers for watching 👍🏻 I'm not sure what exhaust systems are available for the diesel Leon's like yours, or if they can use the same systems as the petrols/Cupra's (I've a Cupra R). I think you can purchase a rear diffuser with the centre exit setup on it, then get an exhaust system to match.
If you aren't already a member, apply to join the "MK2 Seat Leon owners club UK" on Facebook. All the members are really helpful with queries like that, and they'll be able to recommend an exhaust system for your 1.6 TDI 👍🏻 My system is a cobra turbo back system for the Cupra R models only.
This is an excellent video, thank you for sharing. I have seen so many conflicting arguments for and against. I have just ordered one for my Audi TTS. Im on a Rev G diverter . Be interesting to see how it goes for me
No need to thank me Peter, I enjoy sharing my experiences with products so it gives other owners a wee heads-up before they purchase one themselves.
If you can, let me know how you find it once installed on ur TTS (lovely cars those too btw 👌🏻)
Cheers 👍🏻
@@NorthCoastWorkshop certainly will do. Having a new thermostat done on Monday so hopefully will be able to install on Tuesday, assuming it’s delivered by then 😂
Ah the thermostat is a bit of a pain because of its location. 🤞🏻 Hopefully it all goes smoothly and the valve arrives Tuesday, cheers mate 👍🏻
@@NorthCoastWorkshop Thermostat all done yesterday, 5hrs labour . Awesome GTI delivered the valve today. So took the car for a run with just the stock, then added the GFB DV+ and went for another run. Also checked for any codes after each run using ODB11 . No codes on either . Was a definitely better throttle response and when changing gear whilst in the power band no discernible drop off in boost .
Great to hear Peter 👍🏻 yeah I find the throttle response is much better and is back on boost much quicker. Glad ur pleased with it and cheers for the update
Didn’t work on my car, would throw a code and put into limp mode nearly straight away. Back to stock for me, and mine wasn’t fake either!
Cheers for dropping the comment. Sorry to hear you had no luck with it. I still don't fully understand why there are issues with some engines, but it's definitely one that I hear of every so often. Glad it's all sorted with the stock one tho 👍🏻
My boys about to fit one of these on his stage 2 mk2 focus st when he fits his Rs clutch...... Imo, a lot of these were first fitted unlubricated, because of the brass inside the anodised aluminium housing which initially feels quite slick, but still needed lubing......jmo
Yeah, definitely no harm putting a little engine oil on them prior to installation. It should be fine from then on, as it kind of self lubricates with the vapours in the intake system. The focus ST's are brilliant cars! You can't beat that 5 cylinder Volvo engine in them for sound/exhaust note 👌🏻 cheers for watching Robert
Mine worked perfectly until I went full E85 stage 2, it was causing too much leak after that so I had to buy a new OEM diverter valve
Good to know, cheers for the heads up as I want to go stage 2 at some point as well. My GFB is still going strong, but willing to say goodbye to it if it gives up 😂
Really great video thanks a lot for the info as well. Looking to get this, have a stage 2 cupra having some boost issues along with pigeon noise so presume it's DV valve as it's never been changed. Dumb question though, just wondered if anyone knows if I'd fit this direct onto the dodgy valve or I'd be better buying revision G and then fitting this 😳
Cheers Jack, appreciate the kind words. The majority of failed diverter valves are down to the diaphragm and plungers components, instead of the large electric solenoid part (that the GFB re-uses). If you are still unsure, yes using reliable parts from the new Rev G would be better for peace of mind.
2 choices, - get a GFB and re-use the solenoid that's more than likely ok OR great a rev G, fit it and see if it sorts it, and if not use it in combo with the GFB (expensive option tho 🙈)
Hope that helps Jack 👍🏻
I would hate those roads haha. Single lane to ? Ouch couldn't imagine
In Belgium, every road is like this. In Scotland you drive left. In Belgium we drive on whats left...
🤣 that's very true, and sorry to hear you suffer similar poor roads to us!
It's just not safe sometimes driving on them, as you either are swerving at the last minute to avoid them, or risking a blow out if you hit the really bad holes 😬🙈
Would it be beneficial to upgrade the valve and also install a spacer? I was looking at the GFB and also the ecs spacer
I'll admit I'm not 100% clued up on the ECS spacer. Though reading into it, it vents excess boost to the air rather than recirculating it back into the turbo, which sometimes causes running issue with tfsi engines.
Best bet is to try and see someone else with an ECS, and find out what they think of it. I wouldn't say upgrading the piston is required, but if you have the early C revision, the G revision is a worthy and cheaper upgrade Vs the GFB retail price.
Hope that helps, and let me know how u get on 👍🏻
the OEM rev G diverter valve will not work with a high boost setup (Stage 2+ or 3), at that point the options available are as many as there are brands on the market!
That's good to know Howard, cheers. I wasn't aware they couldn't be used above a certain boost
R tech made me take mine off, before they remapped it, i am going to try out the two.
Yeah I have heard rumours of this happening, then other times they leave them on. Not sure exactly what they're current view on them is. Still to this day my GFB is perfect though either way 👌🏻
Cheers for watching
@@NorthCoastWorkshop i think gfb is more responsive but revision g has a lot more power and feels more punchy. It feels less torqy with the gfb.
does anybody know anything about cross compatibility with the turbo muffler on the c250 1.8L? they share the same fitment for the GFB DV+
I'm afraid I'm not clued up on the cross compatibility on the c250 Cam, sorry
I have a DSG Mk6 R with an intake and gfb dv+ attached to rev D diverter, I get some wicked chatter flutter at about 3500 -> under load which I think is from the dv+ actuating on and off, power for sure doesnt feel linear or sound like your tfsi, thoughts?
Yeah sounds like something is intermittently releasing boost. The solenoid from the revision D diverter valve could be playing up, or something could be hampering the GFB from working properly. Maybe have a double check that the piston is tight in the housing of the GFB, but has just enough slack to smoothly move in and out.
A smoke test would be my next suggestion, to see if there's any boost leaks, and maybe have someone log the boost (specified Vs actual) as possibly the car is overboosting and the diverter valve is struggling to handle the excessive boost.
Final one would be to pop a newest revision OEM diverter valve on the car and see what happens.
Hope that makes sense, a lot of things to try.
@@NorthCoastWorkshop Ive had it at the shop before and confirmed it was boosting correctly with logs. I think Ill just stick to Rev D, maybe try Rev G one day.
I also have it Stage 1 tune from 034 Motorsports, so I will pull some logs and see if I can assess from there. Thanks for your reply, great suggestions!
@@BittaThisBittaThat no probs at all, and let me know if u manage to get it sorted 👍🏻
Any opinion on installing one of these on a Ford Ranger 2021 2.3 ecoboost? I'm in the U.S. and have been looking at these and don't really want the vent sound.
Thanks!
I'm not too clued up on the 2.3 ecoboost engines, but can say that if u currently have an aftermarket blow off valve fitted, then this will definitely have less of a venting noise coming from it, as long as it's diverting air back into the engine and not into the atmosphere.
What do you currently have fitted to your ranger?
These GFB valves are still heard a little when an aftermarket induction kit is fitted to the engine, along with turbo noises too.
@@NorthCoastWorkshop completely stock at the moment. Overall plan is intercooler, new pipes, exhaust, maybe a tune. Thought I would start with something simple like this piece.
Thanks
Ah I see, yes it's a good easy first mod. That's some big plans ahead, nice 👌🏻
Your original diverter valve may be up to the job of holding extra boost when u get a remap, so maybe look into recommended engine mods for your engine, to see if owners upgrade the DV.
But yes, if u do decide to get one, you shouldn't hear a dump valve noise, but you will hear more turbo noises if u add an intake.
Best of luck with the mods 💪🏻👍🏻
as long as your getting clean air it should be fine. That piston has a tight tolerance but it is not oil required to move tight. I a little gun lube. I temp long life synthetic. it will last a long time.
Good to know, thank you 👍🏻
Do you think this would make a difference with a dsg gearbox ? I have a dsg box in my gti and don't know if it would make the same difference as the manual
It's a really good question, but I can't be sure how it would work out. I'm sure it would work, but whether you'd see a benefit, I don't know.
DSG boxes are very advanced and the speed at which they shift as standard could probably only be properly increased via software.
Sorry I can't answer your question mate, maybe someone else that see ur comment may know 🤞🏻
Merci
Hello, is the gfb dv the valve that gives the car pshhh sound? because mine doesnt make that sound when i installed it
Your car may need a map so that the boost is slightly increased and you will most likely need a large open air induction kit to hear the most from the turbo system. These things amplify the noise for the TFSI engines 👍🏻
by installing the DV+ does the dump valve make a louder noise or does it remain the same?
This DV+ doesn't dump air into the atmosphere like the atmospheric dump valve u can buy, it instead recirculates it back into the turbo, but if you have a large aftermarket intake, you'll hear this and other turbo noises a lot more, so it sounds like a dump valve in some ways.
Having a car on a remap will also increase boost pressure noises.
@@NorthCoastWorkshop okay thank you, by placing a KN filter in the original air box will this already change a few things?
It will help the engine breathe a bit better, but you'll only get more turbo noises if you go for an open ended induction kit like a Revo or itg intake
If we had a race down a road covered in potholes, you would easily beat me 😆
🤣🤣🤣 after that, (and many other instances) I'm a lot more careful, and the roads are even worse now!! 😬🙈
Quick question, is dv+ supposed to be covered with oil inside? or is my dv broken?
When first put together, the metal piston should be lubricated with a very small amount of fresh engine oil, just applied with ur finger, but after that it should be fine to be left alone (though some owners like to lubricate it annually). The engine isn't designed to lubricate the DV+ piston, the little oil applied at the start of its assembly should be enough.
Hope that makes sense and helps 👍🏻
@@NorthCoastWorkshop i see, i checked my dv+ cause i have been losing all the boost pressure, when i took dv electric clip off it was covered with oil, as well i seperated the dv and checked every little thing the hole dv was covered with used motor oil inside, there was a lot off oil, so i quess my dv is broken as it should not to that, can that cause all the boost pressure losing, as i said i cant get any boost at all, turbo is new and shut work correctly (sorry for bad english, hopefully u understood something :)
If the inside of the DV is covered with used engine oil (dark coloured oil) then it sounds like oil is getting into the boost pipes somehow.
There shouldn't be any oil in those pipes really, you might sometimes get a little in the intercooler pipework.
I'd recommend taking it to a garage to have them check the turbo itself. If there is oil in the diverter valve pipework, and you've lost boost, it's maybe an oil seal on the turbo that's badly worn and leaking oil into the system 🙁
The GFB diverting vavle is ok but turbosmart makes bolt on fullsized BOVs that are way better
Nice build though
Can the oem dv throw out a rich condition code if it leaks.
Not as far as I'm aware. It'll tend to be just boost issues the DV will flag up. Rich condition issues will be more likely related to O2 sensors, or the MAF sensor, bad spark plugs, ignition coils, Evap system etc. Hopefully you can trace the issue 🤞🏻
@@NorthCoastWorkshop my golf 6 Gti have stage 1 tune. I did replace injectors,spark plugs and o2 sensor. Only part I didn't change or clean is my MAF. When car goes in boost I can hear a small whistle noise that's why I think my DV is leaking.
Your missing the small orange rubber o ring on the small spring metal piece
Hey Matthew. Sorry I'm not sure which part you're meaning exactly, that is missing an O ring.
The main body of my GFB has it's large dark orange O ring, and I also have the O ring on the end of the small plunger which fits on top of the thin spring.
i fitted this and kept getting boost drop limp mode
Yeah, I've still yet to find out why this GFB unit can be so hit and miss with cars. Half report it as being a worthy upgrade, and half say it's causing issues with their cars.
And no way of knowing until purchasing and trying it on the car annoyingly. Cheers or the comment 👍🏻
7:28 drive it like you stole it 😎😂
Exactly 😂 but adhering to the speed limit also 🤓
Have you even thought about disconnecting your soundaktor?
I didn't know the MK2's had one or where to find it🙈
@@NorthCoastWorkshop it's under the scuttle panel, I unplugged mine and you realise how much of the engine noise isn't engine noise. Give it ago unplugging it you will be surprised.
@@cozifpv2069 is it an electrical connection to unplug or a pipe? Pretty easy to identify it?
@@NorthCoastWorkshop it's easily identified I found a couple of guides online you could probably do a video on it because the only videos show the newer vag cars
where oil go if u put that thing?*
You can apply oil to the gold part of the piston, but it's not essential. If you do apply any, you should never need to apply any more ever again.
The valve has no sound?
Not directly from it no, u may be thinking of blow off valves that make a woosh noise directly from them.
Any noises heard from the engine that sound similar to that, or turbo noises, are heard with an aftermarket air intake, meaning all the air inlet noises are a lot more audible.
Hope that clears up u query, cheers 👍🏻
@@NorthCoastWorkshop i installed my dv+ today and yes , you re right. I love the sound of aftermarket air intake , but i have a megane 4 gt and sadly i don t have space for that kind of filter:(
@@zapo1255 sometimes a performance air filter that fits in the standard airbox for ur engine may be an option? Sorry to hear there's not a lot of room for an induction kit 😔
@@NorthCoastWorkshop Performance air filters that fits in the standard box have no sound i guess , right?
They'll have a little sound, but not as much as an induction kit. Maybe someone has made a kit that will fit the Renault? If u ask on forums, Instagram etc??