01-13-2020, 06:14 PM | #46 | |
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01-21-2020, 10:10 PM | #47 |
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I used the Carly device to open the flap and then pulled out the fuse while it was open. Im pretty sure that its permanently open now without having to go through the hassle of pulling it while driving or pulling out the wire underneath the car.
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10-23-2020, 02:16 PM | #49 |
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I've done both.
I've tried through OBD and manually removing the sensor. I found that doing it through OBD It sometimes closes randomly versus the more permanent way doing it by pulling the sensor. I can DM a video on how to do this for anyone willing. Thanks.
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10-24-2020, 12:56 PM | #50 |
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Hey, can you DM the video or email it to me Tiafiasov@gmail.com
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08-15-2021, 07:06 AM | #51 | |
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08-16-2021, 10:33 AM | #52 |
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Guys, that valve is there for a reason and its not for lower sounds.
Its designed to build back pressure and help with low end torque. |
08-20-2021, 11:17 AM | #54 | |
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They help, when closed, with low end torque by increasing turbo induction exhaust backpressure. When open at high RPM they help increase horsepower by allowing more freeflow. Basically its win/win when using valved exhaust and it should be used even more so on a turbo'd engine. |
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08-21-2021, 11:34 AM | #55 |
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Misinformed? Ooookay...
So two things: DI means a higher static CR, meaning less low end suffering for turbo motors while still being able to run relatively high boost vs what we used to run for those static CRs. Second, and this is the bigger one, at no point has there been a need for backpressure on modern turbo motors. Some madlads decided to do the legwork and found out the ideal exhaust form is to start off large and unrestrictive, and conically increase its inner diameter as you approach the end so as to manage pulses effectively to help speed the exhaust along rather than letting it dwell or eddy anywhere along the path. Even modern NA motors have gone the path of not really needing much in the way of backpressure to scavenge low end anymore, and turbos haven't needed any ADDED backpressure on account of the flow restrictors already present in the exhaust in the form of multiple cats. A couple small valves sectioning off a couple foot loop in the muffler will not increase backpressure in any meaningful amount. They're there to a) help follow specific noise regulations and b) help limit drone I haven't had an NA car in 2 decades, I've modified every car I've owned, I've done the legwork. Simply put, spool is everything.
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08-21-2021, 02:30 PM | #56 |
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Fully open will perform best for any modern turbo car. The flaps are there to quiet the car for town driving
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08-23-2021, 12:20 AM | #58 |
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08-23-2021, 10:46 AM | #59 | |
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08-23-2021, 12:40 PM | #60 |
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I had a 'mild to wild' switch on my C6 Corvette and it opens the center two butterfly valves in the quad exhaust. Sounds good and mean when driving at low speed or starting up, but as others have said, the drone on a long ride is a pain in the ass. If there were an easy option on the X5 I would get it, but need to be able to easily turn on or off from the driving seat. Getting underneath the car is a total non starter.
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08-25-2021, 01:19 PM | #61 |
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08-25-2021, 06:05 PM | #62 | |
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08-25-2021, 09:50 PM | #63 |
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it barely does anything on the m50i, so I wouldn't get your hopes up
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