Boost Valve Relocation

[skurtov]

So I was wondering if anyone has tried to relocate their blow-off/recirculation valve over to the cold side of the engine. It's a popular mod among the VW guys giving better throttle response and easing replacement.

The basic jist of it is like so....

1. Remove the DV in its existing location
2. Plug the location where the DV was.
3. Relocate the DV to after the intercooler before the intake manifold with a t fitting fit inside the intake manifold hose.
4. Re-Run the vacuum line coming off the valve into its respective nipple with a longer one.

 

[JesusTheAgnostic]

If you wanna do this I'm like 90% sure that you can literally buy it from DDMWorks. Or you could do it yourself. Still you're gonna have to go through DDMWorks to get their block off plate, unless you know how to fabricate things.

 

[Natesriv]

But what about the Blow Offians who live there? Where will they go?

:banana::banana::banana::banana:

 

[skurtov]

The blow off valve should still be operable. You're basically shortening the distance the excess back pressure from the manifold has to go before it releases. You'll probably have even a louder sound from the BV.


@Jesus: I found it, Sonic Turbo Bypass Block off plate 1.4L by DDMWorks

That's pretty nifty. On my VW i just used a hose plug from Home Depot.

 

[JesusTheAgnostic]

Yeah! you put that there and then you can install a BOV wherever you want.

 

[skurtov]

Anyone happen to have a picture of the back of the bypass valve when it's off the car ?

 

[Eric Smit]

First, there is no way you can get it closer to the turbo because the stock bypass valve is literally integrated into the turbo. I had an HKS SSQV4 that I mounted in the charge pipe, close to the throttle body.

In this install, I just fitted a T into the vacuum line and ran both the BPV and BOV, but I ended up installing a DDMWorks BPV block off plate.
http://www.sonicownersforum.com/forum/do-yourself-articles/4629-aftermarket-bov.html

 

[JesusTheAgnostic]

I could get you a picture of the aftermarket forge box when I get home. I haven't installed it yet.

I think he meant he wants to put it away from the turbo. Like you did. Except he's saying that the car should respond quicker. Idk

 

[skurtov]

First, there is no way you can get it closer to the turbo because the stock bypass valve is literally integrated into the turbo. I had an HKS SSQV4 that I mounted in the charge pipe, close to the throttle body.

In this install, I just fitted a T into the vacuum line and ran both the BPV and BOV, but I ended up installing a DDMWorks BPV block off plate.
http://www.sonicownersforum.com/forum/do-yourself-articles/4629-aftermarket-bov.html

Yeah, you locate it farther from the turbo and closer to the intake manifold.

Take a look at this thread: https://www.audiworld.com/forums/tt...had-i-known-i-would-have-done-sooner-1868558/

 

[Blue Moon Sonic]

I know exactly what is going on here since the golf R has the same reroute design from the factory that is popular among the VW Audi group. it's especially popular for the guys who have a K03 turbo going to a K04 and or ease of access to replace the common faulty factory DV. That's the nice thing with owning multiple turbo charged vehicles from different manufacturers. You can see the differences in engineering.

 

[2014 Blue RS]

Love the look of that BOV on top! Better than buried down in the engine bay unseen. Oil filter changes might be a hassle though. Of course my IC hard line doesn't make it easy either. But worth it!

Still want to relocate the battery to the trunk. Down the road it will happen.

Yeah, you locate it farther from the turbo and closer to the intake manifold.

Take a look at this thread: https://www.audiworld.com/forums/tt...had-i-known-i-would-have-done-sooner-1868558/

 

[Eric Smit]

Yeah, you locate it farther from the turbo and closer to the intake manifold.

Take a look at this thread: https://www.audiworld.com/forums/tt...had-i-known-i-would-have-done-sooner-1868558/

I did that, but there was no difference in performance or drivability, technically since I vented the boost instead of recirc it was worse performing. However, nobody cares when your car does this.

 

[Blue Moon Sonic]

If I could reroute mine right now, I would find a way to not have an atmospheric release. Would rather have a recirculating one any day. Cause then you don't have to do any funny tuning to make it work as it should, and you still get a similar sound.

 

[Eric Smit]

If I could reroute mine right now, I would find a way to not have an atmospheric release. Would rather have a recirculating one any day. Cause then you don't have to do any funny tuning to make it work as it should, and you still get a similar sound.

The Sonic comes stock with a recirculating bypass valve.

 

[skurtov]

should be as simple as running a silicone hose from its new position to where its supposed to go into the old port.

 

[Blue Moon Sonic]

The Sonic comes stock with a recirculating bypass valve.

I do know this already. What I'm speaking of, is relocating the factory BPV to be closer to the intake manifold and keeping the system recirculating instead of being atmospheric. Needed to clarify this.

 

[Big Turbo Sonic]

should be as simple as running a silicone hose from its new position to where its supposed to go into the old port.

True, on my turbo swap set up I have the BOV just past the outlet of the turbo, so near the ground. I have a coolant line off another vehicle running back up to the intake (but past the maf sensor).

You can see below in the picture the line is on the left side of the intake pipe.

 

[skurtov]

When i get my new re-circulation valve I'll try and get a write up.