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      06-08-2011, 10:57 PM   #1
vladr
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WTB DCI and BOV - some questions / any for sale?

Hey,


I am looking to buy a BOV and a DCI. Does anyone know how much I can expect to pay, for each? Is it not a good idea to buy either one used?


Do you need to buy a new charge pipe to get the BOV? If I plan to get an intercooler later, do i need to think carefully about which charge pipe i get now?


And finally....is anyone SELLING these? If so feel free to paste links or PM me....


Thanks!
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      06-08-2011, 11:11 PM   #2
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For The bov, yes you do need a charge pipe, unless you get helix BOV/Diverter valves.
I would get a new dual cone intake. 100bux from bms...
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      06-08-2011, 11:12 PM   #3
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Btw are u AT or MT?
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      06-08-2011, 11:13 PM   #4
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To answer your questions
1. Yes you will need a charge pipe
2. Its 100% up to you, There are some used ones in the For Sale section, Usually around $40-60

Just to let you know, some people have had trouble "meshing" the fitment of the DCI correctly when they had a BOV installed because of how high the BOV sits.
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      06-08-2011, 11:19 PM   #5
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for our set up you do not need to buy a new charge pipe. Install/uninstall is 30 minutes tops. The kit comes with special adapters for the stock charge pipe which make everything really easy to install. Also you may consider the AWE blow off valve/diverter valve. They are also installed into the stock charge pipe in about 30 minutes.

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      06-08-2011, 11:30 PM   #6
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Quote:
Originally Posted by KyLu II View Post
Btw are u AT or MT?
MT ...why? Does it make a difference?
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      06-08-2011, 11:35 PM   #7
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Quote:
Originally Posted by Alex@Helix View Post
for our set up you do not need to buy a new charge pipe. Install/uninstall is 30 minutes tops. The kit comes with special adapters for the stock charge pipe which make everything really easy to install. Also you may consider the AWE blow off valve/diverter valve. They are also installed into the stock charge pipe in about 30 minutes.

Alex

Thanks for the info, but I'm confused. How can you have a BOV "slash" diverter valve? Don't they perform different functions? BOV expelling the extra charged air into the atmosphere and div valves cycling it back into the engine?

Thanks,
Vlad


Ps: what kind of prices are we looking at here?
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      06-09-2011, 05:56 AM   #8
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Quote:
Originally Posted by Alex@Helix View Post
for our set up you do not need to buy a new charge pipe. Install/uninstall is 30 minutes tops. The kit comes with special adapters for the stock charge pipe which make everything really easy to install. Also you may consider the AWE blow off valve/diverter valve. They are also installed into the stock charge pipe in about 30 minutes.

Alex
is that for both 1 and 3 series? I've seen the installed pics and it looks like there is a ton of room on the 3, but the rear DV is under the cowl on a 1. It looks like a pita, but I'm really thinking about doing it. From what I've seen the stock charge pipe is fine, but the DVs are the only possible issue at higher boost. So why spend $500+ if you can spend a couple hundred bucks less and get the same benefit?
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      06-09-2011, 08:15 AM   #9
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I've got the AWE DVs\BOV and BMS DCI. No problems with room or fitment at all. Took like 20 mins to unintall and install the DVs. All depends on how hard the vaccum lines are coming off the stocks DVs.
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      06-09-2011, 08:33 AM   #10
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I have both on my site so feel free to check things out and PM/email me if you have any questions Just click on my sig and it will send you to the site.

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      06-09-2011, 09:27 AM   #11
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Quote:
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MT ...why? Does it make a difference?
A bov on a AT is Just stupid since the throttle plate doesn't close between shifts..
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      06-09-2011, 10:17 AM   #12
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Quote:
Originally Posted by KyLu II View Post
A bov on a AT is Just stupid since the throttle plate doesn't close between shifts..
If you are going for sound then you are correct. However, when under boost a BOV will hold pressure just as well as a DV, calling a BOV on AT "stupid" is just your opinion.
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      06-09-2011, 01:08 PM   #13
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Gotcha....after doing hours of research on this sh*t you are both right...in regards to AT BOVs and whatnot. In any case, lets not start that convo here....we all know how out of hand that can get lol.

I just want to know about the different BOVs at this point and what separates one from another. I it just how quiet/loud they are? Or is the quality of the BOV reflected in it's price? For example, I see some that are like 200 bucks with the charge pipe, and then others which are like 500+....

Ps: has anyone heard anything about the greddy BOV?
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      06-09-2011, 01:10 PM   #14
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There's also this one....is this a good price?

http://www.ecstuning.com/BMW-E90-335...ake/ES1892010/
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      06-09-2011, 01:11 PM   #15
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Stick with TiAL, Synapse, or if you don't mind the annoying chirp sound...HKS. Synchronic BOV's are the way to go.
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      06-09-2011, 01:30 PM   #16
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Quote:
Originally Posted by vladr View Post
Gotcha....after doing hours of research on this sh*t you are both right...in regards to AT BOVs and whatnot. In any case, lets not start that convo here....we all know how out of hand that can get lol.

I just want to know about the different BOVs at this point and what separates one from another. I it just how quiet/loud they are? Or is the quality of the BOV reflected in it's price? For example, I see some that are like 200 bucks with the charge pipe, and then others which are like 500+....

Ps: has anyone heard anything about the greddy BOV?
Don't even bother with the cheap bov's, they're junk. The charge pipes are OK but the bov's are not. There's plenty of issues with those, and guys are often upgrading to a higher quality bov's. TiAL and Synapse are the most popular, they're top of the line bov's and work quite well. I have the Synapse Engineering Kit and totally love it. I highly recommend the synapse...

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      06-09-2011, 01:33 PM   #17
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Don't even bother with the cheap bov's, they're junk. The charge pipes are OK but the bov's are not. There's plenty of issues with those, and guys are often upgrading to a higher quality bov's. TiAL and Synapse are the most popular, they're top of the line bov's and work quite well. I have the Synapse Engineering Kit and totally love it. I highly recommend the synapse...



Do you know what I should expect to pay for these?
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      06-09-2011, 01:36 PM   #18
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Quote:
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Stick with TiAL, Synapse, or if you don't mind the annoying chirp sound...HKS. Sequential BOV's are the way to go.
Sequential vs.....non sequential? Does that basically mean that one blows off (from one turbo) into another BOV and that one expels the air out? I'm confused....or does it just mean one BOV for each turbo?

Since we have sequential Turbos on our cars...doesn't that imply sequential BOVs?
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      06-09-2011, 01:43 PM   #19
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There are lots of options.

Depends on your goals.

If your confused on what you want or whatever feel free to email me.

We have stock replacements and we have full charge pipe Diverter valve or BOV replacements.

Basically one stop shop.

Most people dont realize but there is a purpose to BOV and DV upgrades and its not for sound

It is to hold boost for tuned cars. The stock ones like to leak.
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      06-09-2011, 01:59 PM   #20
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Quote:
Originally Posted by vladr View Post
Sequential vs.....non sequential? Does that basically mean that one blows off (from one turbo) into another BOV and that one expels the air out? I'm confused....or does it just mean one BOV for each turbo?

Since we have sequential Turbos on our cars...doesn't that imply sequential BOVs?
It was a typo, I ment to say Synchronic. Synchronic BOV's are fast acting BOV's that eliminates compressor surge and uses synchronic technology to control the release point of the blow off valve
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      06-09-2011, 02:02 PM   #21
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Quote:
Originally Posted by vladr View Post
Sequential vs.....non sequential? Does that basically mean that one blows off (from one turbo) into another BOV and that one expels the air out? I'm confused....or does it just mean one BOV for each turbo?

Since we have sequential Turbos on our cars...doesn't that imply sequential BOVs?
Wrong! The N54 is a Parallel twin-turbo, not sequential. Both turbos spin at the same time and make the same boost. I'm not quite sure why the stock set up has dual diverter valves, but a single aftermarket blow off valve works as good as a stock dual set up, and is able to hold higher boost pressure than the stock DV's.
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      06-09-2011, 02:21 PM   #22
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Quote:
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Wrong! The N54 is a Parallel twin-turbo, not sequential. Both turbos spin at the same time and make the same boost. I'm not quite sure why the stock set up has dual diverter valves, but a single aftermarket blow off valve works as good as a stock dual set up, and is able to hold higher boost pressure than the stock DV's.
Ooooooo.....wooow I'm an idiot. I can say I knew that it wasn't a sequential setup on our cars, and that I had a brain fart...but you wouldn't believe me haha. Suffice it to say im an idiot and leave it there
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