Is a tune required when adding a BOV??

[stang305]

My friend just bought a used 15 ecoboost and wanted to know if a tune is required in order to run a aftermarket BOV. Like HKS OR turbosmart. Couldn't find in the search if it is required. Also if you guys have any suggestions for BOV would be great.

I have a 15 5.0 and don't know much about the ecos

Thanks guys

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[jbailer]

Not for a US spec Mustang EB. They use a MAP sensor for metered air rather than MAF so venting to atmosphere or diverting doesn't matter. It depends on what he wants, sound or actual performance and is he just putting on a BOV or tuning?

 

[stang305]

He wants no tune and just wants sound since he just bought the car and doesn't want to void warranty. He just wanted to see if it was ok to run BOV

 

[jbailer]

Yep, just fine. And if he doesn't want to spend any money, he can simply unplug the line coming off the stock BPV so he can hear it. Some people capped off where the hose connected back to the intake with a furniture foot rubber plug from Home Depot but it won't effect operation. All this if he only wants sound. He could change the sound using different BOVs.

 

[MakStang]

[MENTION=15518]jbailer[/MENTION] It seems that European cars have a MAF sensor instead of a MAP one. Do you think it is a good idea to vent the stock BPV to atmosphere or install a BOV? I know that on a MAF sensor equipped car, the ECU thinks that it has a specific amount of air in the intake system and injects fuel accordingly. The amount of air released by the blow-off valve is not taken into consideration and the engine runs rich for a while. This seems to lead to engine stalling and also damage the engine in the long term (spark plugs, catalytic converter, etc).

I want this aggressive Vent-to-Atmosphere (VTA) blow-off sound and throttle responsiveness, but is Venting-to-Atmosphere (either by venting the stock BPV to atmosphere or installing a BOV or even using a BOV adapter like Boomba Racing one) good for my MAF sensor equipped European Mustang?

 

[jrock]

He wants no tune and just wants sound since he just bought the car and doesn't want to void warranty. He just wanted to see if it was ok to run BOV

Could just add an BOV adapter.

https://www.steeda.com/Steeda-ProFlow-Blow-Off-Valve-Adapter-Ecoboost-Mustang-Fusion_p_12835.html

https://www.americanmuscle.com/cnl-bov-adapter-black-1516eco.html

http://www.boombaracing.com/mustang-ecoboost-blow-off-valve-adapter/

Good Luck...

 

[jbailer]

[MENTION=15518]jbailer[/MENTION] It seems that European cars have a MAF sensor instead of a MAP one. Do you think it is a good idea to vent the stock BPV to atmosphere or install a BOV? I know that on a MAF sensor equipped car, the ECU thinks that it has a specific amount of air in the intake system and injects fuel accordingly. The amount of air released by the blow-off valve is not taken into consideration and the engine runs rich for a while. This seems to lead to engine stalling and also damage the engine in the long term (spark plugs, catalytic converter, etc).

I want this aggressive Vent-to-Atmosphere (VTA) blow-off sound and throttle responsiveness, but is Venting-to-Atmosphere (either by venting the stock BPV to atmosphere or installing a BOV or even using a BOV adapter like Boomba Racing one) good for my MAF sensor equipped European Mustang?

Unfortunately not. With the MAF sensor used to meter air flow, if you vent some of the air already measured for combustion to the atmosphere, you will end up running rich as there will be less air than the computer thinks there is.

Besides, I think like many, after you did it for a while, you'd want to go back. I too wanted to hear the PSSSSHHH, to actually hear the turbo. Unfortunately the way Ford has it operating it gets very annoying when vented and you can hear it. Mine seems to vent a LOT! Just riding down the road with even throttle it will be just blowing away, a constant SSSSSHHHHHH. Fortunately with the BPV venting in the intake, it's not that loud and not too annoying. I do have the GT350 open intake though so I do hear it more than I care to. If it was just on shifts, I'd do something different.

 

[MakStang]

Thanks Joe. I thought so...

 

[MakStang]

ATTENTION: EU Mustangs are also MAP sensor equipped

Ok I am coming back to that. I just found out that European Mustangs are NOT equipped with a MAF sensor but with a MAP one, just like the American ones. I went down to my garage and with the help of a good friend of mine in another country (he was guiding me through photos exchanged over Messenger) we confirmed that there is no MAF sensor to be found on our EU-spec cars. I also confirmed that with our Mustang guy here in Europe (thank you [MENTION=21881]MustangMustHaves[/MENTION]!)

It seems that there is a thread where someone falsely claimed that EU cars are MAF and everyone ever since (including myself) went with it. So it seems that we Europeans are also in the game for some wooshhhh wooshhhhh sound!

 

[TorqueMan]

Some people capped off where the hose connected back to the intake with a furniture foot rubber plug from Home Depot but it won't effect operation.

I believe this is incorrect. See attached image. The bypass valve opens to allow compressed air from the pressurized side of the turbo through the vent tube back into the intake side of the turbo. This prevents the compressed air from pushing back on the turbine blades and slowing the turbo when you close the throttle. The intake side is under vacuum; it is sucking air any time the engine is running. If you don't plug the port (labeled "TO INTAKE") where the bypass connects to the intake you will be sucking air through it into the vacuum side of the turbo. You don't want to suck air into the turbo that hasn't been through the air filter.

 

[MakStang]

[MENTION=31737]TorqueMan[/MENTION] I think you and [MENTION=15518]jbailer[/MENTION] are both saying the same thing here.

 

[Chef jpd]

Indeed they are. you cap the intake tube and let the bypass valve vent atmosphere.

 

[Juben]

Indeed they are. you cap the intake tube and let the bypass valve vent atmosphere.

Exactly.

 

[TorqueMan]

Exactly.

Roger that. I thought jbailer was saying you could leave the vent back to the intake side uncapped.:hail:

 

[Nightblue3]

Anyone has a sound clip/video of the bypass valve to atmosphere?

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