"The BIG BOV thread" (Where all bov question threads get merged) - Page 770

This is a discussion on "The BIG BOV thread" (Where all bov question threads get merged) within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; Don't do it, everyone will think you're a tool....

  1. #11536
    Subaru Newb MainFrame's Avatar
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    Don't do it, everyone will think you're a tool.

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  3. #11537
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    I was just wondering if it was going to be beneficial enough to spend the money on a diverter, I don't know if I'm a fan of the sound of the BOV. I'm not dead set on just blowing my money on something new for the engine unless it's really going to do something for me. Right now my car is tuned to run up to 18 psi.

  4. #11538
    Moderator   Sasquatch's Avatar
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    Quote Originally Posted by MainFrame View Post
    Don't do it, everyone will think you're a tool.
    ^ This x100
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    Quote Originally Posted by paulheav
    I was just wondering if it was going to be beneficial enough to spend the money on a diverter, I don't know if I'm a fan of the sound of the BOV. I'm not dead set on just blowing my money on something new for the engine unless it's really going to do something for me. Right now my car is tuned to run up to 18 psi.
    If your valve isn't currently leaking, then a new valve will do nothing beneficial for you. If you choose to tune the car for a bit more boost, you may run into an issue where your OE valve is leaking, at which point it'd be good to have one on hand to throw on. You can sell it for like a $10 loss to someone if you don't end up using it (so you're not stuck having to do the tune twice).
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    Quote Originally Posted by EJ257 View Post
    If your valve isn't currently leaking, then a new valve will do nothing beneficial for you. If you choose to tune the car for a bit more boost, you may run into an issue where your OE valve is leaking, at which point it'd be good to have one on hand to throw on. You can sell it for like a $10 loss to someone if you don't end up using it (so you're not stuck having to do the tune twice).
    Occasionally when I'm driving hard the computer will throw an engine error and the code is always a waste gate code. I'm assuming that since it is a new aftermarket down pipe that it's probably some sort of leak.

  7. #11541
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    Quote Originally Posted by paulheav View Post
    Occasionally when I'm driving hard the computer will throw an engine error and the code is always a waste gate code. I'm assuming that since it is a new aftermarket down pipe that it's probably some sort of leak.
    Wastegate isn't the BPV.
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    Quote Originally Posted by paulheav
    Occasionally when I'm driving hard the computer will throw an engine error and the code is always a waste gate code. I'm assuming that since it is a new aftermarket down pipe that it's probably some sort of leak.
    P0244

    You're overboosting.
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    Quote Originally Posted by Mikie13 View Post
    Wastegate isn't the BPV.
    I'm aware of that.

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    Quote Originally Posted by EJ257 View Post
    P0244

    You're overboosting.
    Thanks. Good looking out.

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    Subaru Newb MainFrame's Avatar
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    Yeah.. over boost code. Who did your tune?



    Also, BOV would reduce your performance. And most aftermarket valves are much more prone to leaking than the OEM BPV.

  12. #11546
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    Quote Originally Posted by MainFrame View Post
    Yeah.. over boost code. Who did your tune?



    Also, BOV would reduce your performance. And most aftermarket valves are much more prone to leaking than the OEM BPV.
    Why is that?
    A car is only as good as its driver

  13. #11547
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    Re: "The BIG BOV thread" (Where all bov question threads get merged)

    Quote Originally Posted by SubiEj255
    Why is that?
    What are you questioning?
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  14. #11548
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    Also, BOV would reduce your performance. And most aftermarket valves are much more prone to leaking than the OEM BPV.
    This
    A car is only as good as its driver

  15. #11549
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    Also, BOV would reduce your performance. And most aftermarket valves are much more prone to leaking than the OEM BPV.
    This
    A car is only as good as its driver

  16. #11550
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    Quote Originally Posted by SubiEj255
    This
    See below:
    Quote Originally Posted by MainFrame
    Also, BOV would reduce your performance.
    With MAF fueling, you're using the MAF sensor to register how much air is going into the motor, and spraying fuel accordingly. Where the stock valve recirculates the vented air back into the inlet, an aftermarket VTA valve discharges the air. So, the ECU is expecting XX amount of air and fires the injectors accordingly, but only gets YY amount of air, which causes a slight rich condition after venting.

    Quote Originally Posted by MainFrame
    And most aftermarket valves are much more prone to leaking than the OEM BPV.
    To put it bluntly, many aftermarket valves suck. Also, people don't realize that there is proper setup and maintenance that needs to be done.
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