3.3TT So about the stock BOV...

Thankyou ill pick some up monday and give it a good go
 
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I am new to turbo. Can someone explain why the tube is connected and why it is OK to be disconnected and capped?
 
From interior to exterior to high performance - everything you need for your Stinger awaits you...
I am new to turbo. Can someone explain why the tube is connected and why it is OK to be disconnected and capped?
SO the BOV is the valve that releases the pressure built by the turbo after acceleration is done the aftermarket ones usualy vent into the hood of the car making a swoosh sound, the stock ones the vented air is routed through the rubber tubes and gose back into the intake(to keep the sound down) the purpose of this is possibly another way to make the car sound a bit more sport'y without spending the 700$. in theory this should cause no problems what so ever but always try at your own risk. U MUST plug up the ruber hoses because they lead to the air intake. if you dont and say drive down a dusy road the dust will get sucked into the turbo and well thats bad news. the turbo dose not require the air from the blowoff vaulves and the tubes are sealed by the vaulve when its not "blowing off". long story short TDIL take some hoses off, plug them up, get an ok swoosh sound thats lets people know u have a turbo without spending 700$. (again this should cause no problems what so ever but the whole reason to create this thread was to get some insight if it is 100% safe and share the info)(ps -i wil be geting the good vaulves but i need some side work first XD)
 
Done it without any lights coming on which is only logical because all sensors come after the valves (near the throttle body and onwards up the loop). For plugs I just went to Lowe's and grabbed the cheapest 1" diameter plugs I could find in the plumbing aisle. Valves are exactly 25mm or 1". Not much improvement in sound as I suspected, sounds like the majority of stock valves especially compared to my previous car which had a gfb response. If you're coming from a n/a car it'll be "so loud". If you're coming from a car with higher boost and a trumpet valve of any sort, it'll be too mild "lame". I'm waiting to get my oil cans installed to start venting out full-time, don't want to coat my engine bay with oil spray and make clean up harder than it already is lol.
 
my subi had a loud GFB blow off on it I have to say its kinda nice to have something suttle and mild for a change I'm happy with the baby whoosh I get lol and in two seconds I can go back to factory if I "need " to ;) for some strange warranty reason lol
 
SO the BOV is the valve that releases the pressure built by the turbo after acceleration is done the aftermarket ones usualy vent into the hood of the car making a swoosh sound, the stock ones the vented air is routed through the rubber tubes and gose back into the intake(to keep the sound down) the purpose of this is possibly another way to make the car sound a bit more sport'y without spending the 700$. in theory this should cause no problems what so ever but always try at your own risk. U MUST plug up the ruber hoses because they lead to the air intake. if you dont and say drive down a dusy road the dust will get sucked into the turbo and well thats bad news. the turbo dose not require the air from the blowoff vaulves and the tubes are sealed by the vaulve when its not "blowing off". long story short TDIL take some hoses off, plug them up, get an ok swoosh sound thats lets people know u have a turbo without spending 700$. (again this should cause no problems what so ever but the whole reason to create this thread was to get some insight if it is 100% safe and share the info)(ps -i wil be geting the good vaulves but i need some side work first XD)

Ok this might be a little long but bear with me. The valves that are installed on the Stinger are not Blow Off Valves, they are called Diverter valves. The main difference between the two is what their function is. BOV's vent excess boost pressure to atmosphere. They are designed to release the pressure in the intake system when the throttle plate is closed out to atmosphere, hence resulting in that swoosh noise that people chase. While on older cars that do not rely heavily on sensor inputs it has no ill effect on the car.

Diverter valves work on the exact same principle but rather then releasing the pressure to atmosphere it dumps it back into intake stream. This is done not to keep the sound down but to keep the amount of metered air the same in the intake system. As the car brings in air it passes the Mass airflow meter, the readings from this meter along with the O2 sensors determine how much fuel is released into the cylinders to maintain what ever the air/fuel ratio needs to be for the car at that moment.

So by replacing the diverter valves with BOV's or by removing their ability to divert air you are changing the the perceived value of air in the system. This will cause the car to run richer during off throttle moments, which will eventually foul the O2 sensors. Now i'm not saying this is going to ruin your car, i'm not saying not to do it. i'm just giving out some information as what the long term effects are.
 
Ok this might be a little long but bear with me. The valves that are installed on the Stinger are not Blow Off Valves, they are called Diverter valves. The main difference between the two is what their function is. BOV's vent excess boost pressure to atmosphere. They are designed to release the pressure in the intake system when the throttle plate is closed out to atmosphere, hence resulting in that swoosh noise that people chase. While on older cars that do not rely heavily on sensor inputs it has no ill effect on the car.

Diverter valves work on the exact same principle but rather then releasing the pressure to atmosphere it dumps it back into intake stream. This is done not to keep the sound down but to keep the amount of metered air the same in the intake system. As the car brings in air it passes the Mass airflow meter, the readings from this meter along with the O2 sensors determine how much fuel is released into the cylinders to maintain what ever the air/fuel ratio needs to be for the car at that moment.

So by replacing the diverter valves with BOV's or by removing their ability to divert air you are changing the the perceived value of air in the system. This will cause the car to run richer during off throttle moments, which will eventually foul the O2 sensors. Now i'm not saying this is going to ruin your car, i'm not saying not to do it. i'm just giving out some information as what the long term effects are.

This is correct if the sensors were installed ahead of the valves, in the Stinger all sensors are after the valves which means if it vents to atmosphere, the sensors will adjust for the air vented to atmosphere. In the Stinger whether you vent to atmosphere or to recirculate the engine will adjust for the air at the manifold not in the pipe work because the map sensor is right before the cylinders in the intake manifold.
 
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From interior to exterior to high performance - everything you need for your Stinger awaits you...
Is there any difference in price on the rubber closeout seals from AutoZone to getting them at Home Depot?
 
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This is correct if the sensors were installed ahead of the valves, in the Stinger all sensors are after the valves which means if it vents to atmosphere, the sensors will adjust for the air vented to atmosphere. In the Stinger whether you vent to atmosphere or to recirculate the engine will adjust for the air at the manifold not in the pipe work because the map sensor is right before the cylinders in the intake manifold.

Yeah it's nice that they did it that way. If it was in front, then we'd have problems that only tuning could fix.
 
Yeah it's nice that they did it that way. If it was in front, then we'd have problems that only tuning could fix.
I may have had 1 too many beers before that reply lol. Given it is a map not maf sensor, I doubt it would matter where it's placed, it's looking for pressure not volume of air so whether it's before or after valves in the looks or whether it vents in loop or to atmosphere shouldn't matter at all. What's really nice is map setups are a tuning dream, they are not as limited like maf setups. It's a an old/outdated setup option compared to maf but is more flexible for tuning options.
 
Sounds great to me, I'm going to do this 5 dollars mod. and save some money on my aftermarket parts budget.
Does anybody ever though about installing a whistle or a trumpet on stock BOVs? Don't know if we can find this kind of item on internet however should not be that hard to make a pair with a 3D printer.
 
Otherwise a trumpet from Wish or AliExpress :laugh::laugh::laugh:
 
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From interior to exterior to high performance - everything you need for your Stinger awaits you...
Why use a trumpet when you can use a saxophone? :D I want my car to sound like Careless Whisper when I'm driving around
 
Fun little cheap mod. The sound insulation is too good in the cabin can't hear it at all. But will be fun in the summer with the windows down.
 
Did this last night. It's not sort loud, but I can hear it. May be a placebo effect, but it seems to pull harder and/or more smoothly.
 
From interior to exterior to high performance - everything you need for your Stinger awaits you...
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