W212 AMG Discuss the W212 AMG's such as the E63

--rentech Bov valve vs others--

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Old Dec 26, 2022 | 10:59 PM
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--rentech Bov valve vs others--

I am looking to possibly adding a bov from rentech, but I didn't know what the difference was from rentech having only one side of the turbo releasing pressure to the bov VS some other set that I've seen have both charge pipes bridging together with a pipe to the BOV.

Thanks in advance
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Old Dec 26, 2022 | 11:29 PM
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I have the renntech version. It's super clean and looks factory. Some of the others are not so much. It doesn't matter if it's from one side or not. It's dropping pressure in the entire intake tract which is the purpose.
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Old Dec 26, 2022 | 11:39 PM
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^ correct
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Old Dec 27, 2022 | 03:52 AM
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Originally Posted by amg guy
I have the renntech version. It's super clean and looks factory. Some of the others are not so much. It doesn't matter if it's from one side or not. It's dropping pressure in the entire intake tract which is the purpose.
Well that answers my question. Thsnks man. Yah i like the rentech too..
Now is having a bov make you loose boost when pressure releases and cause you to lose power. Meaning taking more time for the turbos to built boost? Not sure If I am explaining this right.
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Old Dec 27, 2022 | 09:23 AM
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Originally Posted by berti_00
Well that answers my question. Thsnks man. Yah i like the rentech too..
Now is having a bov make you loose boost when pressure releases and cause you to lose power. Meaning taking more time for the turbos to built boost? Not sure If I am explaining this right.
BOV only vents pressure after you let off the accelerator, the throttle plate closes and the excess intake pressure needs to be vented. So you're not losing power in that timeframe - you've willingly reduced power by way of your foot.
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Old Dec 27, 2022 | 10:41 AM
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So basically you aren't loosing anything until you let go of the gas pedal

Last edited by berti_00; Dec 27, 2022 at 04:11 PM.
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Old Dec 27, 2022 | 11:22 AM
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Correct. W212 E63's dont drop boost during shifts, 99% of the time anyways.

More here in my review:
https://mbworld.org/forums/w212-amg/...st-review.html

EDIT: looks like the host website removed my pictures of logs in that thread, ill try to fix it up tonight.
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Old Dec 27, 2022 | 02:01 PM
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I have brand new renntech bov kit in the box that I never installed. I failed to remove the charge pipe from the lower coupler. I gave up.
Any Long Island guys care to help? I Can pay in beer, liquor, bbq or money lol...or Im going to sell it
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Old Dec 27, 2022 | 03:05 PM
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Messaged you. I'll buy it lol
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Old Dec 28, 2022 | 12:22 PM
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Originally Posted by bentz69
I have brand new renntech bov kit in the box that I never installed. I failed to remove the charge pipe from the lower coupler. I gave up.
Any Long Island guys care to help? I Can pay in beer, liquor, bbq or money lol...or Im going to sell it
Sell it. Way to cold in NY to do anything anyways lol
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