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      08-29-2017, 03:42 PM   #1
kurtisss
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2010 x5m blow off valve

any way we can change or ad a blow off valve so i can hear a pssshhhhh when it shifts?
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      08-29-2017, 06:39 PM   #2
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Quote:
Originally Posted by kurtisss View Post
any way we can change or ad a blow off valve so i can hear a pssshhhhh when it shifts?
You already have them - diverter valves. You will find that they are vented back into the intake though (a common function).



I believe you can still find this guys post on the forum. As I recall he experienced some odd driving characteristics when vented to the atmosphere.

Keep it classy!
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      08-29-2017, 08:13 PM   #3
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You can here them if you install intakes
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      08-30-2017, 10:26 AM   #4
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Would this be comparable to those Subarus, M Lancers and tall diesel trucks crying out for attention? mmmhhh
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      08-30-2017, 12:44 PM   #5
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I've been exploring this also. It would add just the thing this truck needs to make it the ultimate bad ass.
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      08-30-2017, 02:42 PM   #6
kurtisss
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thats what im talking about! thanks ill have to search for that.



Quote:
Originally Posted by greddy91 View Post
You already have them - diverter valves. You will find that they are vented back into the intake though (a common function).



I believe you can still find this guys post on the forum. As I recall he experienced some odd driving characteristics when vented to the atmosphere.

Keep it classy!
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      09-03-2017, 03:36 PM   #7
TheVazha
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Can anyone link the original thread on this mod?

Maybe this?

http://www.xbimmers.com/forums/showthread.php?t=1042574
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      09-07-2017, 08:32 AM   #8
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I was looking around and found these. Go fast bits DOV, Another X5M owner on instagram told me. "The screws that came with the DV would not work. So I matched up the factory screws with "Tapcon" screws. Worked perfect. They have the blue heads." Idk if they make the swoooosh! Sound tho.
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      09-07-2017, 09:49 AM   #9
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Nope, the DV+ is not a blow off valve. Its just a billet diverter valve, for cars who are running higher boost and want a more reliable replacement to the rubber diaphragm DV's that can tear from increased temps when running turbos outside their efficiency range (typical tuned car).

I've actually had one of these and run it on my 2011 GTI with K04 turbo. It works fine, but is not a BOV.

P.S. Atmosphere venting of boost (blow off valve) reduces performance and increase lag all with the added benefit of additional noise? Why not just get a cheap bluetooth speaker and wire it into your OBD port and run a raspberry pi to watch for shifts and then it sends a sound through the BT speaker. Might be cheaper and it won't hurt performance.
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      09-07-2017, 11:46 AM   #10
greddy91
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Quote:
Originally Posted by Cr4ck_x5M View Post
I was looking around and found these. Go fast bits DOV, Another X5M owner on instagram told me. "The screws that came with the DV would not work. So I matched up the factory screws with "Tapcon" screws. Worked perfect. They have the blue heads." Idk if they make the swoooosh! Sound tho.
Off topic, but that air filter placement is facking tarded. Ditch your stock attempt at cold air to pull in air from the absolutely hotter part of the motor... Brilliant! Would love to see before and after IATs on that setup.
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      09-10-2017, 10:55 PM   #11
Cr4ck_x5M
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Quote:
Originally Posted by greddy91 View Post
Quote:
Originally Posted by Cr4ck_x5M View Post
I was looking around and found these. Go fast bits DOV, Another X5M owner on instagram told me. "The screws that came with the DV would not work. So I matched up the factory screws with "Tapcon" screws. Worked perfect. They have the blue heads." Idk if they make the swoooosh! Sound tho.
Off topic, but that air filter placement is facking tarded. Ditch your stock attempt at cold air to pull in air from the absolutely hotter part of the motor... Brilliant! Would love to see before and after IATs on that setup.
Ya that's not my set up lol just pics I came across I run a RK set up on mine.
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      09-11-2017, 12:18 AM   #12
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Quote:
Originally Posted by greddy91 View Post
Quote:
Originally Posted by Cr4ck_x5M View Post
I was looking around and found these. Go fast bits DOV, Another X5M owner on instagram told me. "The screws that came with the DV would not work. So I matched up the factory screws with "Tapcon" screws. Worked perfect. They have the blue heads." Idk if they make the swoooosh! Sound tho.
Off topic, but that air filter placement is facking tarded. Ditch your stock attempt at cold air to pull in air from the absolutely hotter part of the motor... Brilliant! Would love to see before and after IATs on that setup.
Dude I've seen it done on other platforms and I'm amazed that people have the gall to call it a cold air intake. Have you ever lifted your hood after a long drive? It feels like you're staring at the sun. I feel bad for the motors that have this mod. The best part is when they say something like "cold air intake, only $1500!" Lol.
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      09-14-2017, 02:12 AM   #13
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Quote:
Originally Posted by Cr4ck_x5M View Post
I was looking around and found these. Go fast bits DOV, Another X5M owner on instagram told me. "The screws that came with the DV would not work. So I matched up the factory screws with "Tapcon" screws. Worked perfect. They have the blue heads." Idk if they make the swoooosh! Sound tho.
Curious what his Instagram page is and/or if you can get him to come onto this thread and give more details. Go Fast Bits also makes a DV that has a vent to atmosphere feature as well.

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      09-14-2017, 02:14 AM   #14
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Quote:
Originally Posted by greddy91 View Post
Off topic, but that air filter placement is facking tarded. Ditch your stock attempt at cold air to pull in air from the absolutely hotter part of the motor... Brilliant! Would love to see before and after IATs on that setup.
I agree that his filter placement is terrible. Too bad RK hasn't come down on price to move multiple units vs trying to make all their money off a handful of them. I've got a custom made intake and the BOV sound is awesome so I'm curious what could be done to add more.
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Last edited by m5james; 09-14-2017 at 07:39 AM.
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      09-14-2017, 07:30 AM   #15
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You will run rich if you convert or remove the bpv the intake system and computer account for the additional air flow coming ... would not recommend without proper tuning.
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      09-14-2017, 07:40 AM   #16
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For like .5 seconds, basically the time it takes for the DV to recirc the air...while off throttle. I haven't tried it myself, but I can't imagine damage will be caused.
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      09-14-2017, 09:54 AM   #17
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Quote:
Originally Posted by frankenm View Post
You will run rich if you convert or remove the bpv the intake system and computer account for the additional air flow coming ... would not recommend without proper tuning.
Where is the air meter for the S63? I recently pulled off the intake and don't remember seeing the MAF sensor around there. If the air hasn't been accounted for, I don't think there should be a problem blowing it out to atmosphere.

Resetting your adaptation might help the engine adjust to the new flow of air.
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      09-14-2017, 09:58 AM   #18
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Quote:
Originally Posted by m5james View Post
I agree that his filter placement is terrible. Too bad RK hasn't come down on price to move multiple units vs trying to make all their money off a handful of them. I've got a custom made intake and the BOV sound is awesome so I'm curious what could be done to add more.
Wow, amazing work on the custom intake!!
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      09-14-2017, 10:29 AM   #19
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Quote:
Originally Posted by philly42 View Post
Where is the air meter for the S63? I recently pulled off the intake and don't remember seeing the MAF sensor around there. If the air hasn't been accounted for, I don't think there should be a problem blowing it out to atmosphere.

Resetting your adaptation might help the engine adjust to the new flow of air.
The S63 has no MAF, which has it's pros.
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      09-14-2017, 10:34 AM   #20
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Quote:
Originally Posted by philly42 View Post
Wow, amazing work on the custom intake!!
Thank you, sir...it was made at a shop in CA, loosely based off the stock design from the E70 4.8l with BMC #FBTW80-151 filters covered in K&N water stocks. While I haven't dyno proven their performance, they sound amazing...the GF just knows what I'm going to do in every tunnel now
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      09-15-2017, 09:44 AM   #21
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Quote:
Originally Posted by m5james View Post
The S63 has no MAF, which has it's pros.
Ahhh I've been looking at the engine detail for the S63TU and I see an air mass meter. So I guess that's one of the upgrades for the engine.

(Pic is for the S63TU, See #5)
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      09-22-2017, 10:09 PM   #22
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Quote:
Originally Posted by Cr4ck_x5M View Post
I was looking around and found these. Go fast bits DOV, Another X5M owner on instagram told me. "The screws that came with the DV would not work. So I matched up the factory screws with "Tapcon" screws. Worked perfect. They have the blue heads." Idk if they make the swoooosh! Sound tho.
It looks like they still use the stock diverter valve with the DV+ between. I wonder how this is beneficial or how it even works if you still have the stock DV on there.
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