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Old 06-24-2019, 08:18 PM   #1
Kenny_S3
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Default BOV Delete?

so i stumbled across a vid on youtube on how to make your car give the stutu sound and absolutely love the sound. but they want you to cut out some thin metal and cover up the bov. i've heard many people say its bad for you turbo and car in general and i heard a lot of people say its fine on the car. if you have tried this can you let me know any of the negatives or positives.

Thanks
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Old 06-25-2019, 09:05 AM   #2
Jack
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Really?

I bet the same people think it would be a good idea to drive over a cliff because gravity will give you constant acceleration.
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Old 06-25-2019, 09:19 AM   #3
Turpid Porpoise
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Quote:
Originally Posted by Kenny_S3 View Post
so i stumbled across a vid on youtube on how to make your car give the stutu sound and absolutely love the sound. but they want you to cut out some thin metal and cover up the bov. i've heard many people say its bad for you turbo and car in general and i heard a lot of people say its fine on the car. if you have tried this can you let me know any of the negatives or positives.

Thanks
Absolutely moronic idea.... The BOV/BPV serves a very specific purpose. Capping it off causes any compressed air inside the system to spin the turbo backwards when you let off the throttle to shift or slow down. Buh bye turbo
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Old 06-25-2019, 11:39 AM   #4
cknowlen
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Is this a troll post? I don't see how anyone could think this is a good idea. I would also ove to see what is being referenced here..
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Old 06-25-2019, 11:44 AM   #5
Waddlz
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Quote:
Originally Posted by Turpid Porpoise View Post
Absolutely moronic idea.... The BOV/BPV serves a very specific purpose. Capping it off causes any compressed air inside the system to spin the turbo backwards when you let off the throttle to shift or slow down. Buh bye turbo
please be a troll reply...
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Old 06-25-2019, 11:54 AM   #6
Turpid Porpoise
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Originally Posted by Waddlz View Post
please be a troll reply...
Kind of an over simplified and exaggerated explanation of turbo flutter due to compressor surge when the throttle plate closes. It doesnt actually spin the turbo backwards but it places increased loads on the turbo bearings as it continues to try and push air with nowhere to push it.

Sometimes you gotta noob in the noob section
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Old 06-25-2019, 01:39 PM   #7
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Old 06-25-2019, 01:54 PM   #8
Turpid Porpoise
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Quote:
Originally Posted by GlarryHoodDIT View Post
Interesting read. I guess I've been getting too much information from turbo/BOV companies rather than race teams who aren't trying to sell me anything. I've also been looking for a good read so I ordered the Corky Bell book to get me through next week.

Last edited by Turpid Porpoise; 06-25-2019 at 02:16 PM.
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Old 06-25-2019, 02:15 PM   #9
anarekist
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wonder if there's a way to replace it with the solenoid version like in the fa24DIT
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Old 06-25-2019, 04:08 PM   #10
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Quote:
Originally Posted by Turpid Porpoise View Post
Interesting read. I guess I've been getting too much information from turbo/BOV companies rather than race teams who aren't trying to sell me anything. I've also been looking for a good read so I ordered the Corky Bell book to get me through next week.
I think the question is how much wear and tear is actually increased. Very little hard evidence for our platform, especially the FAs, but if the turbo still lasts 100k or more then it'd be a more interesting conversation.
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Old 06-25-2019, 04:22 PM   #11
Turpid Porpoise
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Quote:
Originally Posted by GlarryHoodDIT View Post
I think the question is how much wear and tear is actually increased. Very little hard evidence for our platform, especially the FAs, but if the turbo still lasts 100k or more then it'd be a more interesting conversation.
Right, even Corky states that it decreases longevity but it’s difficult to quantify since there really isnt an expected lifespan for a turbocharger since so many variables affect its durability
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Old 06-25-2019, 04:33 PM   #12
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Quote:
Originally Posted by Turpid Porpoise View Post
Right, even Corky states that it decreases longevity but it’s difficult to quantify since there really isnt an expected lifespan for a turbocharger since so many variables affect its durability
This is what the OP is for

OP, ripoff your bpv and let us know how long your turbo lasts! I'm also kind of curious to hear compressor surge on our cars, so make sure you record that and post it.
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Old 06-25-2019, 04:50 PM   #13
Waddlz
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the stustustu noise is pretty lit
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Old 06-27-2019, 09:37 AM   #14
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in the name of science!
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Old 06-27-2019, 02:03 PM   #15
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I have zero insight on this. However, it sounds so BA on all the hill climb cars!!!
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Old 06-27-2019, 02:45 PM   #16
Jedi03
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turbo cars have not always had a sort of bypass valve, and have done ok...the bov does help the turbo stay in its efficiency range and extend longevity but can still work without it...also a majority of diesels also do not run bypass valves...
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Old 06-27-2019, 02:47 PM   #17
rich3389
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Quote:
Originally Posted by Jedi03 View Post
turbo cars have not always had a sort of bypass valve, and have done ok...the bov does help the turbo stay in its efficiency range and extend longevity but can still work without it...also a majority of diesels also do not run bypass valves...
This is true but diesels don't have a throttle plate.
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Old 06-27-2019, 05:58 PM   #18
willowlee
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Just for reference, if all you want is that sound, just do what a buddy of mine did. Get yourself a nice set of stereo system and replay the sound off from it..... Full blast that shiet till your ears blows up and your car would still be fine .....
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Old 07-01-2019, 11:10 AM   #19
bdubblu
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For $20 you can get an electronic “psssht sound” simulator on eBay.
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Old 07-01-2019, 11:35 AM   #20
Stretch18
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Quote:
Originally Posted by GlarryHoodDIT View Post
I think the question is how much wear and tear is actually increased. Very little hard evidence for our platform, especially the FAs, but if the turbo still lasts 100k or more then it'd be a more interesting conversation.
I'm guessing that car manufacturers have crunched the numbers already. If Subaru could save $1 per unit by removing bypass valves from cars, they'd have done it decades ago...
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