B9 Forge Motorsport Atmospheric Dump Valve

[4-ring-sleepers]

Installed by Forge Motorsport USA in Orlando FL. Available online. Not sure in install specifics as it was done same time as the FMIC.

(Not sure if link posts correctly) search youtube if not. - "2018 Audi B9 SQ5 Forge Motorsport Atmospheric Dump Valve"

<iframe width="560" height="315" src="https://www.youtube.com/embed/1_q_b1IANfM" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

Sent from my SM-N950U using Audizine mobile app

[SQive]

FTFY

[4-ring-sleepers]

FTFY

Sent from my SM-N950U using Audizine mobile app

[chawski]

I have no problem admitting I want one just because I have always loved the sound of a BOV, but I gatta ask... Does it do anything other than sound freakin rad?!

[SQive]

NADT

[Mops@Nemesis]

NADT

Does it need to though? 😛

Might assist post tune. I thought this engine called for a DV that recirculates. Back in my B5/6 days I was simply swapping out for 996T DVs.

[4-ring-sleepers]

Does it need to though?

Might assist post tune. I thought this engine called for a DV that recirculates. Back in my B5/6 days I was simply swapping out for 996T DVs.

For you doubters that think its useless and have not installed or experienced it on a B9, yes, it provides lots of crisp release vs fluttery flappy sound (boost leak) with only Roc-Euro intake installed. I run JB4 Map 4 (+6psi) with E85 blend and Forge FMIC and awe exhaust. Honestly, the car feels like it pull harder and really picks back up very quickly if you let off the gas and back on gas again under higher boost. Way less turbo lag. The Forge Valve is Not a simple blow-off valve. Oem vavle works with a pull up tupe piston vs older push down type valve. The Forge valve comes with all electrical connections needed to utilize factory connect. Way different that older versions. I believe it re-circulates AND dumps into atmosphere. So there is no loss and minimal gain as there is less stress on oem turbo and boost lines. Hybrid upgrade planned in future! Hope this helps!

https://www.forgemotorsport.com/Atmo...uct--1579.html

Sent from my SM-N950U using Audizine mobile app

[Mops@Nemesis]

Interesting. I’ll pick one up. Thanks for the info


MOPS on the Move!

[cmoore86]

Interesting. I’ll pick one up. Thanks for the info


MOPS on the Move!

I couldn't help myself and just put one on last night. Although I took my RE intake off and it still sounds great with my OEM intake (upgraded filter and I have a hole cut in the side though). Haven't really driven it yet to see how it goes with the JB4 for me but my drive around the block certainly sounded more fun!

[Mops@Nemesis]

I couldn't help myself and just put one on last night. Although I took my RE intake off and it still sounds great with my OEM intake (upgraded filter and I have a hole cut in the side though). Haven't really driven it yet to see how it goes with the JB4 for me but my drive around the block certainly sounded more fun!

Keep a brother in the loop, Conor! Lol.

Where did you purchase yours? I’m going to hit up Forge this evening. Just remembered I had to upgrade when I went stage 3+ on the B6 and believe I went Forge.


MOPS on the Move!

[cmoore86]

Keep a brother in the loop, Conor! Lol.

Where did you purchase yours? I’m going to hit up Forge this evening. Just remembered I had to upgrade when I went stage 3+ on the B6 and believe I went Forge.


MOPS on the Move!

Sorry Mops! I have had my eye on this for quite some time as a couple people have these on the B9 S4/5 already.

I ordered from the Forge website. In stock and shipped the next day. Going to hold out on the FMIC though. Looking for more on the market with SQ5 fitment before I jump in there.

[4-ring-sleepers]

Sorry Mops! I have had my eye on this for quite some time as a couple people have these on the B9 S4/5 already.

I ordered from the Forge website. In stock and shipped the next day. Going to hold out on the FMIC though. Looking for more on the market with SQ5 fitment before I jump in there.

I am Local to the Forge Motorsport USA headquarters so I just emailed them and set up an appointment for fmic test fitment on my B9 SQ5 and had the dump valve installed same time. Forge has always been a leader in valve tech for audi/vw models. So i figured give it a shot. Been waiting 1.5 years for awe intake! I am quite sure other brands fmic that are available are also direct fitment (possibly with minor custom conectors) just so happens that Forge has their own goodie box of proper silicone hoses to make it direct fitment. It was easy for me drop off and pick up next day! Forge USA crew are all great audi/vw guys! Its all personal choice at the end of day. Product is all 100% top of line. Little pricey. But we are all waiting on a damn carbon fiber airbox from awe that might give the car 6HP but look good for $900! Any FMIC will give you more than 6HP that is if you are going for more than just open hood looks. I Love my Turbo swwwwwshhhhhh now. Forge Dump Valve isolates exhaust sound/air intake sound/turbo sound

Sent from my SM-N950U using Audizine mobile app

[Mops@Nemesis]

Sorry Mops! I have had my eye on this for quite some time as a couple people have these on the B9 S4/5 already.

I ordered from the Forge website. In stock and shipped the next day. Going to hold out on the FMIC though. Looking for more on the market with SQ5 fitment before I jump in there.

Forgiven! When are we going to order some custom wheels? 😎

I am Local to the Forge Motorsport USA headquarters so I just emailed them and set up an appointment for fmic test fitment on my B9 SQ5 and had the dump valve installed same time. Forge has always been a leader in valve tech for audi/vw models. So i figured give it a shot. Been waiting 1.5 years for awe intake! I am quite sure other brands fmic that are available are also direct fitment (possibly with minor custom conectors) just so happens that Forge has their own goodie box of proper silicone hoses to make it direct fitment. It was easy for me drop off and pick up next day! Forge USA crew are all great audi/vw guys! Its all personal choice at the end of day. Product is all 100% top of line. Little pricey. But we are all waiting on a damn carbon fiber airbox from awe that might give the car 6HP but look good for $900! Any FMIC will give you more than 6HP that is if you are going for more than just open hood looks. I Love my Turbo swwwwwshhhhhh now. Forge Dump Valve isolates exhaust sound/air intake sound/turbo sound

Sent from my SM-N950U using Audizine mobile app

Do you have a contact? I'd love to use the US group, and make see about moving some units for them.

[4-ring-sleepers]

Forgiven! When are we going to order some custom wheels?



Do you have a contact? I'd love to use the US group, and make see about moving some units for them.

Matthew B. ([email protected])
USA Marketing and Customer Service Specialist was my initial email contact.

If you prefer to call them direct, you can ask for him or Sean (who I worked with direct). Tell him Eric with the green SQ5 refered you, he will know

Forge Motorsport
www.forgemotorsportusa.com

Ph# 407-447-5363

Direct Ph.407-701-5362



Sent from my SM-N950U using Audizine mobile app

[Mops@Nemesis]

Thank you sir!


MOPS on the Move!

[DiscoDan]

Can this be installed sans their aftermarket intercooler?

[JD S4]

Can this be installed sans their aftermarket intercooler?

Yes.


Sent from my

[4-ring-sleepers]

First video i made was cold start sitting in garage. I will post another video soon while driving on highway, full boost dump, with windows up/down! Twin scroll really has a nice dump under hard boost!

Sent from my SM-N950U using Audizine mobile app

[cmoore86]

I am Local to the Forge Motorsport USA headquarters so I just emailed them and set up an appointment for fmic test fitment on my B9 SQ5 and had the dump valve installed same time. Forge has always been a leader in valve tech for audi/vw models. So i figured give it a shot. Been waiting 1.5 years for awe intake! I am quite sure other brands fmic that are available are also direct fitment (possibly with minor custom conectors) just so happens that Forge has their own goodie box of proper silicone hoses to make it direct fitment. It was easy for me drop off and pick up next day! Forge USA crew are all great audi/vw guys! Its all personal choice at the end of day. Product is all 100% top of line. Little pricey. But we are all waiting on a damn carbon fiber airbox from awe that might give the car 6HP but look good for $900! Any FMIC will give you more than 6HP that is if you are going for more than just open hood looks. I Love my Turbo swwwwwshhhhhh now. Forge Dump Valve isolates exhaust sound/air intake sound/turbo sound

I have nothing against the Forge FMIC and actually really like that it is black. But I just want more options before spending the money and I am trying not to make my own custom connectors. If I lived near Forge I would have totally done the same!

Forgiven! When are we going to order some custom wheels? 😎

Hey I like my BBS wheels! We will do something as soon as I see a style that actually inspires me to make the CI-R's winter wheels.

Can this be installed sans their aftermarket intercooler?

Thats what I did.

First video i made was cold start sitting in garage. I will post another video soon while driving on highway, full boost dump, with windows up/down! Twin scroll really has a nice dump under hard boost!

Sent from my SM-N950U using Audizine mobile app

Totally agree. Sounds too damn good!

[4-ring-sleepers]

Quick little video of the Valve Sound under medium boost with windows up in manual mode. Car has much more lag/dely with factory valve and driving aggressive. Now it does not skip a beat!

https://www.youtube.com/watch?v=1_q_...ature=youtu.be

Sent from my SM-N950U using Audizine mobile app

[DiscoDan]

Yes.


Sent from my

Install with hand tools in the garage or does this need to be done by a shop?

[phillyquattro]

Install with hand tools in the garage or does this need to be done by a shop?

Install directions can be found here. Looks pretty quick and easy.

[Mops@Nemesis]

If you prefer to call them direct, you can ask for him or Sean (who I worked with direct). Tell him Eric with the green SQ5 refered you, he will know

Sent from my SM-N950U using Audizine mobile app

Been chatting with Sean today. Nice guy! My valve ships in the AM, and Nemesis is setup to distribute Forge products.

[4-ring-sleepers]

Been chatting with Sean today. Nice guy! My valve ships in the AM, and Nemesis is setup to distribute Forge products.

Cool. I am sure you will get some more proper sound videos posted when you get yours installed. Its makes B9 turbo sound proper when your rockin the JB4 higher booost!

Sent from my SM-N950U using Audizine mobile app

[BooBooKittyFk]

Just got mine in the mail today, plan on installing it this weekend

[BooBooKittyFk]

Just got mine in the mail today, plan on installing it this weekend

I couldn't wait and installed it today

The install only took me about 30mins to do, the sound is amazing!!!

[KillerQuattro]

FYI. Forge offers two products that are similar, but different.

"Atmospheric Dump Valve" Part #FMDV13A
https://www.forgemotorsport.com/Atmo...uct--1579.html
This looks like it only dumps it out, and does not recirculate the boost.

"Recirculation Valve" Part #FMDV13R
https://www.forgemotorsport.co.uk/Re...uct--1669.html
This looks to be the one that will properly recirculate the boost back into the intake to maintain pressure.

I am curious to those that have worked with Forge, what they say is the best product for this application. Both links i listed show the B9 S4 as the platform, so why are there 2 different versions, and which one is "better"?

I know the sound of the dump is intoxicating, but I do recall in my previous cars, they ran better with the recirculation design still in tact. So I upgraded to a better valve overall for faster piston release and better responsiveness.

If I had a B9, I would go with the recirculation design, so it's ready for the tune, which will likely have been tested with the OEM recirculation valve/design in mind.

I could be totally off, but I saw the Forge site had a link to two separate products, so I thought I would call it out to the group..

[BooBooKittyFk]

FYI. Forge offers two products that are similar, but different.

"Atmospheric Dump Valve" Part #FMDV13A
https://www.forgemotorsport.com/Atmo...uct--1579.html
This looks like it only dumps it out, and does not recirculate the boost.

"Recirculation Valve" Part #FMDV13R
https://www.forgemotorsport.co.uk/Re...uct--1669.html
This looks to be the one that will properly recirculate the boost back into the intake to maintain pressure.

I am curious to those that have worked with Forge, what they say is the best product for this application. Both links i listed show the B9 S4 as the platform, so why are there 2 different versions, and which one is "better"?

I know the sound of the dump is intoxicating, but I do recall in my previous cars, they ran better with the recirculation design still in tact. So I upgraded to a better valve overall for faster piston release and better responsiveness.

If I had a B9, I would go with the recirculation design, so it's ready for the tune, which will likely have been tested with the OEM recirculation valve/design in mind.

I could be totally off, but I saw the Forge site had a link to two separate products, so I thought I would call it out to the group..

There really is no difference except for the sound, some will say the motor will run a tiny bit richer with a Atmospheric Dump Valve but I never seen any proof. Is there a performance difference NOPE.

[KillerQuattro]

There really is no difference except for the sound, some will say the motor will run a tiny bit richer with a Atmospheric Dump Valve but I never seen any proof. Is there a performance difference NOPE.

I have felt the difference between a diverter valve vs a blow-off valve for myself, so I can guarantee you there is a performance difference in SOME applications and in some scenarios. Total power will not decrease with any atmospheric valve, but the availability of the power at any given point on the accelerator matters in daily driving quite a bit. You lose a lot of (precious) boost with that cool noise.. That said, there is a chance there may not be issues on this platform due to new technology. Let me explain.

1) With this new twin-scroll turbo, it is likely much more efficient than older turbo technology. These new turbo's dont take much to get spinning therefor the real benefit of a diverter valve may almost be moot.
2) Auto gearbox. The ZF trans keeps things pretty tight between shifts and I believe the ECU has more control over in-between shifts than it ever has before.

With my '92 5cyl AAN with a 3071r turbo, when i had a failing DV (diverter valve hose blew on one side) I would lose all my boost in between shifts, and would have to build it back up again, which accounted for a loss when upshifting. The upgraded DV and hose kept the boost hitting the turbo and kept it spinning during the shift, so when I got into another gear, the turbo didnt have as much work to do to get back up to 20-22psi.

I'm not necessarily saying either is better, I just noticed there are two offerings, and wanted to stir up some conversation about the differences.

[SportRings]

Reviving this thread. Is there a consensus on which one’s better for our B9 SQ5? Pros and cons? 4-ring-sleepers (OP), any specific reason why you went with Atmospheric Dump vs. Recirculation? You mentioned bringing your SQ in for install. Did Forge make a recommendation and/or point you to one product over the other? Thanks!


Sent from my iPhone using Audizine

[SportRings]

For those that already have the Atmospheric Dump Valve, after the excitement of the new install, do you find the “pssshhh” getting old/annoying/obnoxious? Any other benefits; less lag, faster spool, linear power on boost, mpg? Thanks!


Sent from my iPhone using Audizine

[4-ring-sleepers]

Not old or annoying. I do however have an issue sometimes when im in map4 jb4 (+6psi) and doing WOT pulls from 3rd thru 5th when the car upshifts seems that the stock transmission lag creates delay in ignition and i get a sputter when the jb4 tries to adapt to oem parameters and throw a mil light but it goes away after restart or driving for a bit. Lots of sensors on these b9's. The wot drop in pressure from the dump after shift delay seems to create a hiccup for the jb4 and oem computer to keep up with. Either an under or overboost protection from oem ecu. Still not a huge deal. Working on possibly changing the actuator for dump valve may be bad. I will keep updated on my findings.

Sent from my SM-N975U using Audizine mobile app

[1S32K16]

Reviving the thread, bored at home and have the itch for some modding. Thinking about the recirc valve. Any feedback from those who have been running it for sometime now? Also I noticed that ECS has a black option but can’t seem to find that forge offers silver or black on the actual forge site.

[Pintojohny]

Same, have an itch to spend too but not much left in the wallet 😬 this seems to be a decent compromise mod. So swish or no swish???

[1S32K16]

Same, have an itch to spend too but not much left in the wallet 😬 this seems to be a decent compromise mod. So swish or no swish???

I just bought the recirc valve as it went on sale today. Hopefully that was the right choice between the two.

[Mops@Nemesis]

I just bought the recirc valve as it went on sale today. Hopefully that was the right choice between the two.

Yep recirc for sure That’s what I run.


MOPS on the Move!

[1S32K16]

Yep recirc for sure That’s what I run.


MOPS on the Move!

Thanks for the reassurance mops! I watched your videos a few times.

[Chris.green]

I talked to mops about this already but I just wanted to see if it’s just me or not lol.

I installed the recirc dv and to my ear it sounds no different then the stock one unless letting off hard at full throttle. I mentioned to him that maybe there is a break in period for it? Just wanted to see if anyone else had the recirc and find it the same as me?

[FFM]

You running the stock air box? Cause just like the factory intake muffles the recirc it will do the same for an aftermarket one no matter what style of piston it has.

As for the debate on atmospheric or recirc. It’s almost entirely dependent on whether you have a MAF sensor or MAP vehicle. Cars with a MAF sensor can’t have atmospheric valves because you are dumping metered air that the ECU is expecting and isn’t able to account for when released.

After popping the hood I’m going to assume we have a MAP sensor monitored vehicle. Only had the car a couple weeks still looking things over so correct me if I’m wrong.

[Chris.green]

You running the stock air box? Cause just like the factory intake muffles the recirc it will do the same for an aftermarket one no matter what style of piston it has.

As for the debate on atmospheric or recirc. It’s almost entirely dependent on whether you have a MAF sensor or MAP vehicle. Cars with a MAF sensor can’t have atmospheric valves because you are dumping metered air that the ECU is expecting and isn’t able to account for when released.



After popping the hood I’m going to assume we have a MAP sensor monitored vehicle. Only had the car a couple weeks still looking things over so correct me if I’m wrong.

I have the roc euro intake