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2Addicts | BMW 2-Series forum Technical Topics N55 (M235i) Engine, Transmission, Exhaust, Tuning Dinan Carbon Fiber Cold Air Intake

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      06-03-2015, 12:00 PM   #45
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You can hear the turbo spooling, quite loud might I add, with any aftermarket intake. Down to the $100 ones.

With that said, until we see a before and after dyno, I will take Dinan's advertised claims with a grain of salt.
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      06-03-2015, 12:18 PM   #46
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Quote:
Originally Posted by BMWZ4 View Post
One thing I forgot to mention about the "cold weather" package if you have it; from the Dinan installation PDF, there's this statement:

"...*Please note that removal of the snow valve may affect engine performance in extreme winter conditions...."

I knew this in advance, but wasn't concerned because I'll be storing the car during the winter, consequently I didn't ask Dinan what the possible effects could be during the winter...just something to be aware of before you purchase/install.

Wow this is interesting. Is this a common issue with all aftermarket intakes? I'm between the Dinan and AFE intakes and this could be a deciding factor. I definitely don't want to sacrifice engine performance in cold weather!
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      06-03-2015, 02:04 PM   #47
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Quote:
Originally Posted by Luminous View Post
Wow this is interesting. Is this a common issue with all aftermarket intakes? I'm between the Dinan and AFE intakes and this could be a deciding factor. I definitely don't want to sacrifice engine performance in cold weather!
Unfortunately I do not have the necessary experience to answer that question. Perhaps someone in the group could answer that, but try emailing Dinan directly. I'm assuming they would have the answer. As I said, I knew this ahead of my purchase, but wasn't concerned because I'll be storing it for the winter.

By the way, you can check to see if you have this valve by simply unclipping the top of the airbox and remove the filter. Then look down into the bottom left hand side of the airbox (facing the car). If you see this "valve" then you'll have to remove and install the supplied piece from the Dinan kit, if you don't see that valve, then you're clear for all year 'round driving! Also see the Dinan site for the installation PDF. There's a decent image in the installation instructions of what the valve looks like (but you can't miss it if you take the filter out).

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      06-03-2015, 03:09 PM   #48
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I did a little digging into these intake box snow valves...from what I gathered they are there to keep light dry snow from getting/sticking on the intake filter, freezing and then eventually melting into water and degrading the filter over the long term. When you plug this valve and drive in a blizzard or very snowy day (hence the extreme weather conditions part) you may end up getting snow on the filter and thus degrading some performance.

This is my understanding, but easy solution would be to examine filter if you just drove in a snow storm and if it's covered in snow, shake it off. I live in Chicago and will maybe drive in 2-3 snow storms in a season and will be using this procedure once I get my intake.
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      06-03-2015, 04:33 PM   #49
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Quote:
Originally Posted by chaddy74 View Post
6-8 weeks
Ugh didn't even notice this when I ordered...
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      06-04-2015, 07:08 AM   #50
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Quote:
Originally Posted by jbenington86 View Post
Ugh didn't even notice this when I ordered...
I'd bet it'll be less than that. IMO I think Dinan would prefer to under promise and over deliver. At least you'll shave a week off because it doesn't have to go through customs....
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      06-04-2015, 07:10 AM   #51
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Quote:
Originally Posted by kdog26372 View Post
I did a little digging into these intake box snow valves...from what I gathered they are there to keep light dry snow from getting/sticking on the intake filter, freezing and then eventually melting into water and degrading the filter over the long term. When you plug this valve and drive in a blizzard or very snowy day (hence the extreme weather conditions part) you may end up getting snow on the filter and thus degrading some performance.

This is my understanding, but easy solution would be to examine filter if you just drove in a snow storm and if it's covered in snow, shake it off. I live in Chicago and will maybe drive in 2-3 snow storms in a season and will be using this procedure once I get my intake.
That's interesting. The only question I have about this valve is why it's spring loaded and how does that spring loaded action work in extreme winter weather....i.e. what action forces the valve to open & close?
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      06-04-2015, 07:13 AM   #52
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Quote:
Originally Posted by BMWZ4 View Post
That's interesting. The only question I have about this valve is why it's spring loaded and how does that spring loaded action work in extreme winter weather....i.e. what action forces the valve to open & close?
Directs air to be taken further up the plenum if clogged with snow up front
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      06-05-2015, 07:00 AM   #53
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Ok, so that's good to know and explains the "extreme winter conditions" caveat from Dinan. So basically as long as you keep the front grill intake area free from snow or snow somehow getting into the airbox, you're ok...

Seems reasonable.
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      06-05-2015, 05:54 PM   #54
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Can a forum member with this intake hurry up and do some back to back Dyno tests against the factory Airbox please !

There is another competitor just about to release there new intake to the market and I want to make informed decisions...
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      06-05-2015, 06:11 PM   #55
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Who is releasing an intake ?
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      06-05-2015, 06:15 PM   #56
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I got an email from Mike the other day.... release is days away , this product will not only look fantastic its going to come with solid data on power gains on offer !! IMO I think it looks better than the Dinan also.

http://www.awe-tuning.com/awe-bmw-m235-sflo


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Who is releasing an intake ?
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      06-05-2015, 11:00 PM   #57
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It looks good . I'm sure performance will be the same . It all depends on availability as Dinan is back ordered . Looks nice . Same price range ?
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      06-16-2015, 01:58 AM   #58
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Quote:
Originally Posted by chaddy74 View Post
We really need some solid data on if this intake actually adds any performance at all. My experience on intakes thus far has been stock is best.
I agree and although I still run an aftermarket intake because I like the sound, I have been strongly considering going back to stock with a KN filter. I very much doubt that they add the power they advertise, but the sound is great.
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      06-16-2015, 02:15 AM   #59
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Go Back to stock for a few days and see how it feels. replacing the intake is a 10 min job. Lets us know how it goes. Might want to do a battery reset also so the car adapts again.
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Originally Posted by mmmmm235i View Post
I agree and although I still run an aftermarket intake because I like the sound, I have been strongly considering going back to stock with a KN filter. I very much doubt that they add the power they advertise, but the sound is great.
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      06-16-2015, 10:25 AM   #60
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any info when is it coming out?
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      06-16-2015, 12:40 PM   #61
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Chaddy,

I hope an awe intake doesn't work better than our current setup else I will be compelled spend more money !!!!

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      06-16-2015, 02:23 PM   #62
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I will confirm soon enough BP .... ordered I'm yesterday !! The design looks sound. QUOTE=Bee Pee;18099872]Chaddy,

I hope an awe intake doesn't work better than our current setup else I will be compelled spend more money !!!!

BP[/QUOTE]
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      06-17-2015, 03:39 PM   #63
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We will be releasing our intake line very soon.

The factory intake does a great job at stock power levels. Once you start adding modifications, there is room to craft a better performing system. That was our focus, extracting maximum power when overall maximum power is expected. You also get the benefits of a sealed airbox system for the lowest possible IAT's, a refined increase in turbo noise, and thick, UV protected, carbon fiber construction at a great price.
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      06-17-2015, 04:33 PM   #64
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Quote:
Originally Posted by Mike/AWE
We will be releasing our intake line very soon.

The factory intake does a great job at stock power levels. Once you start adding modifications, there is room to craft a better performing system. That was our focus, extracting maximum power when overall maximum power is expected. You also get the benefits of a sealed airbox system for the lowest possible IAT's, a refined increase in turbo noise, and thick, UV protected, carbon fiber construction at a great price.
What is the price btw? It looks great
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      06-17-2015, 04:44 PM   #65
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What is the price btw? It looks great
All will be revealed in short time. Expect teasers to start rolling out soon.
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      08-06-2015, 02:04 PM   #66
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