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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Blow Off Valves w/ Valvetronic



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      08-15-2016, 07:56 AM   #1
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Blow Off Valves w/ Valvetronic

I have been doing a ton of reading on BOVs and know that you need vacuum created by the engine to suck the BOV up while the extra boost helps push, releasing the unneeded boost. We cannot have that with the N52 due to valvetronic, but would it be possible to tap into the valvetronic motor and have an electronic BOV? so whenever you let off the throttle the motor closes the intake valves to minimum lift. if you could hack into that wire and design an electronic valve that would open with no power, and close with power applied, couldn't a BOV be made for the N52?
Im not exactly sure what drives the valvetronic motor, ive only seen the BPC video where they use a drill to open and close it, but I would assume whatever really drives that uses electricity from somewhere controlled by the throttle.

What do you guys think? Could potentially help out BPC and ESS with BOVs for more power w/o fear of compressor surge.
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      08-15-2016, 08:08 AM   #2
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BOV releases the extra pressure from the turbo charger. Why would you need it in a NA car?
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      08-15-2016, 08:09 AM   #3
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Quote:
Originally Posted by Delta0311 View Post
BOV releases the extra pressure from the turbo charger. Why would you need it in a NA car?
That's why the end said help with BPC (turbo kit) and ESS (supercharger kit)
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      08-15-2016, 01:34 PM   #4
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In one of the threads someone from AA stated that they did a supercharger for N52, but due to lack of being able to address the excess boost, they gave up on the project.

BPC is going in different direction. It seems like their turbo kit already has BOV built into it, so creating something new is not necessary - for them.
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      08-23-2016, 02:47 PM   #5
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Reading the 1st part of the post made me think of this:

https://www.youtube.com/watch?annota...&v=Z_fG_b65WiU
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