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Blow off valve XR6T ( Newby ) UPDATE

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Hi guys

Just thought I would ask a silly question on a new purchase of my 2011 XR6T

I was driving the other and gave it a little stick very impressed it did not disappoint.

Any way the next day when taking out for another drive.

Every time I would accelerate  slow or fast I could here the what I think is the Blow value releasing. like gas releasing from a A/C

Does this mean I have a problem or is it just a  simple adjustment. Look forward to your comments Thanks Steve

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:Welcome2FordXR6t:

You might have a boost leak... by the sound of it.

Check all pipes from the outlet of the turbo to the intercooler and from the intercooler to the throttle body to make sure they're all correctly connected.

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Thanks for the tip will check it now once I find out what the throttle body and intercooler look like.

Cheers Bud

Steve

Edited by cruiser

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The system looks like this (from the outlet of the turbo on the top-left to the throttle body on the top-middle of this image).

TWxqUfr.png

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One way you can tell if you have a boost leak, is if the car is lacking power. That was the first thing I noticed when the revs hit 2500rpm, there was no power. I was driving an N/A.

 

The other thing I have is an obdII port dongle which I have the android app called Torque, connected to it as a digital gauge. The boost was not showing up and I knew that I had a boost leak.

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If the Torque app fails, enter Racewars and check your trap speed over 800m, I found mine dropped from 229 to 209km/h after a chair stopper I used to block the BoV pipes (after removing BOV) popped off during a run.

 

 

But Torque is much more practical :)

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I got 202 missing the chair stopper from the 209 run prior so I beat you nyah nyah

 

 

Your record is no boost AND no fuel, I had fuel coz racecar

Edited by discostig

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Hi guys

 

Latest to my small problem

It seems that the sound is coming from the IR Blow off valve

Both fast  and normal and take off from lights normal speed  it just not stop

Tried adjusting control on the side of blow off valve ( Does nothing ) So I would think the blow off valve is broken

The name on it is IR Blow off valve

It looks like an easy replacment

Question is this a good Blow off valve or should I replace with another ??

Question Where do I purchase

Question Can I install myself

Thanks again guys really appreciate your comments

Cheers Steve

xr6 blow off valve.jpg

Edited by Rab
Double posts and formatting

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Looks like a cheapie, but I don't know it, personally... you can tell if it's leaking if you just idle the car and there's air blowing out of that "trumpet" section, as it shouldn't be blowing any air out under vacuum/idle conditions.

 

Get a stock one and put it in there, if necessary.

Yes, you can install yourself if you have the right tools to get the clamps on the hoses undone/done-up.

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Yes, stock XR6T's have a "re-circulation" valve, which is a form of blow-off valve that recirculates the waste air back into the air intake instead of releasing it to atmosphere like the aftermarket one you have.

You can get one from a wrecker (cheaper) or Ford (more expensive). It's the same BOV for BA/FG. Or you can buy another aftermarket one (more expensive than Ford)

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I might be wrong here, so please correct me if I am wrong.

In that picture it looks like the adjustment screen can be tightened up to recirculate the air back into the system instead of ventilating to the environment.

Do all Blow off valves do this?

 

If if you tighten the screen does the sound of a boost leak actually reduce?

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After doing a bit of a search, I found this

https://www.neon-technologies.com.au/products/dual-port-blow-off-valve-bolt-on-for-audi-s3-a4-a6-s3-and-tt

 

Seems like it is a dual port blow off valve. So if it does recirculate and the OP does turn the screen to harder, will he still hear hear it as much if it is recirculating?

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With dual port bovs the two outlets are staggered so the recirculating side opens before the externally vented. So if its working as it should when cruising it will be quiet and when you be smashn the boost she'll be loud AF.

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