[ttaidapos]

Didn't see a thread on this yet so here it goes.

It's available for 2.0 engines and installs in about 30 minutes taking your sweet time. Result is snappier throttle response and spool of the turbo. Butt dyno confirms it but who knows? Ships from AU super fast and priced reasonably. You can read all about what a DV+ does/replaces and see if it's a good fit for your hopes and dreams

GFB Website and ordering

Actual part number for 2.0 Engines

Some more literature on DV+ from Giulia forums

And now for quads... You'll obviously need two of these puppies and they have not confirmed fitment yet. I'm working with them along with a wizard on the Giulia forums by the name of "MacGeek". As of now, it uses the exact same diverter valve as the 2.0, easier placement for quicker install, you just need two of them as I said earlier. They're now confirming that the screws from them T9366 2.0 kit will fit the quad application. Once confirmed, I will order/install and post back results.

Enjoy!

 

[ViscontiVerde 164L*]

Interesting. Basically holding boost to a greater extent is what I read into this. Would like to understand the the effect it has on the transmission which "feels" more Torque thru the shift process everytime. Are we just moving premature wear down the pipeline?????? Experts please chime in.

 

[ttaidapos]

Update for Quads: More than likely the same DV+ will fit with no issues. The problem is, you need to perform open heart surgery to get to the **** things. I'm not a mechanic by any means but I've done my share of work on cars over the years and this is not easy.

 

[DeX]

Hello, I've just installed mine, but for the moment I am not sure if there is any change or I am misleading myself. I think there is less turbo lag, but cannot confirm yet. From looking at the stock valve, it should be better, because the stock one is just holding pressure by plastic on metal, there is no rubber inside, but .... I just don't know yet

 

[ttaidapos]

Hello, I've just installed mine, but for the moment I am not sure if there is any change or I am misleading myself. I think there is less turbo lag, but cannot confirm yet. From looking at the stock valve, it should be better, because the stock one is just holding pressure by plastic on metal, there is no rubber inside, but .... I just don't know yet

I presume you have the 2.0? The real gains is when you let go the gas and then press quickly again. The valve is able to maintain the pressure instead of releasing it and causing your turbo to spool again. From 0-60 you will not have any gains really but if you drive the twisties, wala!

 

[DeX]

The valve cannot maintain any pressure if the control solenoid is open. The only thing is that it will gradually release pressure instead of rapidly. So if the valve is commanded by ECU to open it will not release the pressure instantly like the stock valve, so if the ECU commands the valve to close in the next 1-2 seconds there will still be pressure, so the turbo will not start from relative 0 boost. The other benefit is that it should seal better than the stock one, because as I said there is no rubber sealing on the stock valve, only plastic piston to metal ring inside the valve itself.

 

[ttaidapos]

The valve cannot maintain any pressure if the control solenoid is open. The only thing is that it will gradually release pressure instead of rapidly. So if the valve is commanded by ECU to open it will not release the pressure instantly like the stock valve, so if the ECU commands the valve to close in the next 1-2 seconds there will still be pressure, so the turbo will not start from relative 0 boost. The other benefit is that it should seal better than the stock one, because as I said there is no rubber sealing on the stock valve, only plastic piston to metal ring inside the valve itself.

Got it, way better explanation than mine! You drive a 2.0 right? Just trying to get an idea if you got the DV+ in a quad which is a different ball game.

Update: Should be getting two DV+ for the quad. If I get them in, I'll post war pictures and a small guide. It's something I can't wait to install but also crying at the same time considering how much work it's going to require on a quad.

 

[DeX]

Yes 2.0T 280hp. Keep in mind that your valves can be like mine (the updated one) which you will have to brake in order to install the DV+ valve. Mine was not possible to be diassembled without braking the piston and the plastic surrounding.

 

[ttaidapos]

Yes 2.0T 280hp. Keep in mind that your valves can be like mine (the updated one) which you will have to brake in order to install the DV+ valve. Mine was not possible to be diassembled without braking the piston and the plastic surrounding.

Yup already did it on my 2.0 Giulia and broke just the surrounding plastic gasket, not the piston. It's a 15min install on a 2.0 engine, the trick is to use a plastic interior pry tool and take your time carefully lifting the gasket slowly all the way around. On the quad, I plan to test installing back the stock one once removed because both locations are extremely hard to get to. Below are the pics of the left DV, the one on the right is actually on a angle and even harder to get to.

 

[Hoosbeach]

any update on how your Quad drove with the DV+?

 

[ttaidapos]

Sadly I haven't installed it yet. it's a bitch of a job as you need to access both from under the car. Getting some good temps in IL the last couple of days, just haven't had the time to ditch my family for a few hours. I have it tentatively planned for this Saturday if the stars align and I get a friend to help.

 

[Hoosbeach]

I should take delivery on the 26th. Might try to put it in on the weekend. Of course the 2.0 looks relatively simple to do. I just have to get up the nerve to do the replacement without a backup part.

 

[ttaidapos]

I should take delivery on the 26th. Might try to put it in on the weekend. Of course the 2.0 looks relatively simple to do. I just have to get up the nerve to do the replacement without a backup part.

The 2.0 is literally a 15min install. Pull up the thread on the Giulia forums, plenty of write ups. Oh P.S You will more than likely break your stock DV taking it apart. Basically, grab a kleenex box for tears ahead of time

 

[Hoosbeach]

Has anyone who has installed DV+ received any error codes as noted in the installation instructions? (P2261) Assuming everyone has installed the spring...

 

[ParagonBuilder]

Giulia forum has way more info. Some did at first if I remember correctly. Something about 1 or 2 springs

 

[Hoosbeach]

well I have mine out and the piston will not come out. Any tricks? from everything I have read it should be easy to remove the piston...Not so at least for me. Any help would be appreciated

 

[Hoosbeach]

Ok so the instructions need to be changed to the following: Do the best you can getting the piston out but don't ever expect to use it again. Please buy your replacement at Euro if you want to go back to stock!

Also there is no way it is 15 minutes unless you have done the following before and have the right state of mind

1. taken the engine shield off before.
2. understands how the electrical connectors are taken apart without breaking anything
3. don't even think about saving the original parts- go at it with gusto and understand that you are committed to this upgrade!
4, Make sure you have a torx that fits on a rachet - the torx screws go in tight - (that's what she said!)
5. Try not to get too nervous as you try to put the unit back in without the spring getting the best of you

Other than that its a piece of cake

 

[ttaidapos]

Ok so the instructions need to be changed to the following: Do the best you can getting the piston out but don't ever expect to use it again. Please buy your replacement at Euro if you want to go back to stock!

Also there is no way it is 15 minutes unless you have done the following before and have the right state of mind

1. taken the engine shield off before.
2. understands how the electrical connectors are taken apart without breaking anything
3. don't even think about saving the original parts- go at it with gusto and understand that you are committed to this upgrade!
4, Make sure you have a torx that fits on a rachet - the torx screws go in tight - (that's what she said!)
5. Try not to get too nervous as you try to put the unit back in without the spring getting the best of you

Other than that its a piece of cake

Yes 1st time install will definitely take longer than 15min, especially if you haven't messed around in there before and depending on your "need to be careful" tolerance The plastic gasket was definitely the show stopper on my first install but then like most, figured out, you can't really take it out unless it's in a million pieces. Some have been lucky taking it out in 1 piece but it's fairly rare. I'm guessing that it may have to do with the temperature in that area. For example, sitting out for hours vs. parked for an 1hour after a drive?

Regarding error codes, as others posted, a lot more info on the Giulia forums for sure. I would confirm the install once more ensuring everything is buttoned up correctly as it should. Definitely worth reading about the springs again, you may have mixed them up during install? On my 2.0 Giulia, I've had the DV+ in there for a solid 2,000 miles with zero issues or CEL.

For those asking how a EC tune plays with this, the good news is you don't need an updated tune

 

[Hoosbeach]

Everything seems fine with the car tonight after my 70 mile RT dinner drive. I actually got the parts out intact but I know that the edges of the one piece have been compromised and would not put them back in the car. I don't think I mixed them up but maybe I didn't seat them correctly but can't see how I could of messed that up. With both springs in will the unit stay together without pressure? if that is the case then I definitely have something wrong.

 

[KZquad18]

Sadly I haven't installed it yet. it's a bitch of a job as you need to access both from under the car. Getting some good temps in IL the last couple of days, just haven't had the time to ditch my family for a few hours. I have it tentatively planned for this Saturday if the stars align and I get a friend to help.

Have you had a chance to do this yet? I’d love some tips.