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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > aFe N54 Stage 2 Sealed CAI # 54-82002 - Review



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      04-13-2012, 07:33 PM   #23
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Where do you get the a and b part on the diagram??

Ah it only shows up if you choose 335i and not 135i
That is the elite Stage 2 version
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      04-13-2012, 07:39 PM   #24
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So is it installed yet? Baseline?
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      04-13-2012, 07:57 PM   #25
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Quote:
Originally Posted by BuraQ View Post
I am going to pick on you two on this and those who agree with your opinions. Your statement express how little you know about the stock intake vs the aFe Stage 2 SI for the N54.

BTW the aFe version intake I am testing DOES NOT cost $900. This version intake is the one that uses the STOCK snorkel. The cost on this intake is between $400-$500 and perhaps less than $400

Even the stage 2 SI Pro that you are referencing doesnt cost $900. You can get it for $700-$800 and perhaps less than $700

All off you should know because you are E90post.com members you get special pricing way below that marketing price.

The stock box intake air travel goes IN > UP > DOWN . It has to bank "SHARP" corners with through a SMALL space

The aFe intake air travel goesn IN > DOWN. The is not sharp bank cornering of the air. The air turning is ample wide with a rounded down "Y" spliters into the turbo inlets.

Here is a tech sheet on the airflow. I have sealed the box so there should be less restriction on the stock snorkel.
The reason this intake won't do much vs. the OEM airbox is that the inlet is basically the same size as stock. Those little snorkel openings are each 1" tall by 6" wide. The square opening on the OEM intake box is around 4" tall by 3" wide. Both are well matched at around 12 square inches. The problem is they need to be around 16 square inches+ to support higher boost levels at higher RPM. From what I can tell this AFE airbox will still be limited to around 12 square inches with the combined inlets.

Mike
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      04-13-2012, 11:03 PM   #26
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Originally Posted by RnmEvo9
So is it installed yet? Baseline?
I did a baseline today with the stock intake before i installed the aFe 7 hours ago. Just got back from PBIR, and now at Chillis having dinner.

Good night at the track, was doing 12.0 consecutive. Best speed trap was 116.

Just waiting for DME to fully adapt, couple pulls is not enough.
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Last edited by BuraQ; 04-14-2012 at 01:43 AM.
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      04-14-2012, 01:59 AM   #27
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Quote:
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Quote:
Originally Posted by RnmEvo9
So is it installed yet? Baseline?
I did a baseline today with the stock intake before i installed the aFe 7 hours ago. Just got back from PBIR, and now at Chillis having dinner.

Good night at the track, was doing 12.0 consecutive. Best speed trap was 116.

Just waiting for DME to fully adapt, couple pulls is not enough.
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      04-14-2012, 06:16 AM   #28
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Quote:
Originally Posted by BuraQ View Post
I did a baseline today with the stock intake before i installed the aFe 7 hours ago. Just got back from PBIR, and now at Chillis having dinner.

Good night at the track, was doing 12.0 consecutive. Best speed trap was 116.

Just waiting for DME to fully adapt, couple pulls is not enough.
First I will pick on you for eating at Chilis, then I will state that anybody can draw a pretty picture...lets see some actual numbers of stock box with drop in vs afe stage 2 sealed intake (unmodified)
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      04-14-2012, 10:52 AM   #29
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First I will pick on you for eating at Chilis,
Salmon with brokley and rice. I was.......howgry

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Originally Posted by imageautodetail View Post
..........then I will state that anybody can draw a pretty picture...lets see some actual numbers of stock box with drop in vs afe stage 2 sealed intake (unmodified)
Can anybody draw a pretty picture of a 1/4 mile run ? There was a reason why I added this in support as dyno results and real world performance are two difference things.

No numbers will be posted online at this time of the RENNtech tune. The only numbers that will be posted are the gains or loss of the aFe intake complimented by a "pretty picture drawing" ie dyno graph of before and after and track runs. The verticle and horizontal numbers on the graph will be blurred out

Take it or leave it........Funny if the pretty drawing shows loss of HP and TQ it wouldnt be "...anybody can draw a pretty picture..."

As for the unmodified version of the aFe intake, when i bought it I was under the impression that it was SEALED like the stock intake. Some $10 modifications were made to make it SEALED. So myself and others will like to see what a SEALED aFe intake is capable of. I have no interest in testing an enclosed RAM intake
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      04-14-2012, 03:03 PM   #30
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Quote:
Originally Posted by BuraQ View Post
I did a baseline today with the stock intake before i installed the aFe 7 hours ago. Just got back from PBIR, and now at Chillis having dinner.

Good night at the track, was doing 12.0 consecutive. Best speed trap was 116.

Just waiting for DME to fully adapt, couple pulls is not enough.
I read your post last night but it was removed before I was able to reply. I really have no dog in this fight, I hope the intake does great for you, and I'd be happy to earn profit on selling someone one if they do work. My reply is simply my understanding of why you should not expect much from it.

For intake dyno testing, there is always day to day dyno variance and weather variance. My advice for the best comparison is to do same day back to back testing. Do 5 runs on the OEM intake until you get a stable reading, then do the same on the new intake until you get a stable reading, and then compare those consistent readings. It might even take 10 runs on each one until the results are stable. The DME will learn within a pull or two. When you are done it would be a good idea to also do a series of runs with the OEM airbox only with the top removed, this will simulate an open intake like the dual cone (best possible results), and run those until results are stable. So you can draw a conclusion from the open results as to just how well your sealed intake is flowing.

Mike
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      04-14-2012, 03:27 PM   #31
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Originally Posted by Mike@N54Tuning.com View Post
I read your post last night but it was removed before I was able to reply. I really have no dog in this fight, I hope the intake does great for you, and I'd be happy to earn profit on selling someone one if they do work. My reply is simply my understanding of why you should not expect much from it.
LOL ! It came across wrong, and didnt digest your post properly and took it the wrong way. Thats why I deleted it.

Quote:
Originally Posted by Mike@N54Tuning.com View Post
For intake dyno testing, there is always day to day dyno variance and weather variance. My advice for the best comparison is to do same day back to back testing.
This is where intake tests are not able to get authentic numbers. This method leaves no time for the DME to adapt to the new mod. My personal experience is it can take days and miles for the DME to adapt in order to get authentic results

Quote:
Originally Posted by Mike@N54Tuning.com View Post
...The DME will learn within a pull or two....
I disagree with you here on this. Having owned 4 BMWs, whereas two are Tubro Charged, couple of pulls in one day does not render "FULL" adaptation of the DME.

It takes miles and perhaps days for the DME to "FULLY" adapt to the new mod especially an intake.

It was more beneficial to do 6 runs on the track with the new intake after install, than 5 dyno runs on a base line
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      04-14-2012, 03:30 PM   #32
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Why is everyone coming in here like their .02 is worth a quarter? Guy is going out of his way to show results. If you dont like the results who cares? Move on. Its those types of people that dissuade others from posting results and trying to help the community. People in this community give a lot of slack to those actually trying to help. It's no wonder this board is the laughing stock among many, many of its members are immature especially when other members go out their way to try and help, for free.
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      04-14-2012, 04:40 PM   #33
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Uhhh

Why does Renntech/japtrix want the numbers to be kept secret?

Renntech publishes their ECU Tune numbers right on the website, so is it japtrix being useless?

Also thanks for doing this review, as your results will pretty much determine if I keep my stock box with a drop in, or buy one of these units.

Last edited by 135Hoser; 04-14-2012 at 05:08 PM.
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      04-14-2012, 07:17 PM   #34
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Uhhh

Why does Renntech/japtrix want the numbers to be kept secret?

Renntech publishes their ECU Tune numbers right on the website, so is it japtrix being useless?

Also thanks for doing this review, as your results will pretty much determine if I keep my stock box with a drop in, or buy one of these units.
Japtrix has nothing to do with RENNtech or wanting to keep numbers confidential ie "OFF THE NET"

Japtrix is my preffered mustang dyno shop, thats all.

RENNtech asked for their numbers not to be marketing or advertised as it is "a test tune" that has not been decided as to its stage level. You will not find numbers posted on their sight for any of their test tunes. What you see are their official tunes.
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      04-14-2012, 09:08 PM   #35
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Buraq, why did you part ways with the Dinan CAI?
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      04-14-2012, 09:39 PM   #36
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Buraq, why did you part ways with the Dinan CAI?
If I went back to the Dinan CAI I would have to remove my second radiator from the driver's side airduct and that was a no no.

I have retained the Dinan Oil Cooler with a bigger radiator and secondary radiator so i dont have to worry the least about cooling.

I have choosen the aFe N54 Stage 2 intake as it has ample room for improvements and it is flexable to work with.
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      04-15-2012, 06:20 AM   #37
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Quote:
Originally Posted by Mike@N54Tuning.com View Post
The reason this intake won't do much vs. the OEM airbox is that the inlet is basically the same size as stock. Those little snorkel openings are each 1" tall by 6" wide. The square opening on the OEM intake box is around 4" tall by 3" wide. Both are well matched at around 12 square inches. The problem is they need to be around 16 square inches+ to support higher boost levels at higher RPM. From what I can tell this AFE airbox will still be limited to around 12 square inches with the combined inlets.

Mike
Mike the afe still maintains the factory 4"x3" opening and has the auxiliary 3"x1.5" opening as well. On my car I set up the auxiliary port for cowl induction. I truly liked my afe sealed system as it was exactly what I was looking for from a design standpoint!

Last edited by TurboBullett@Ambient Thermal Management; 04-15-2012 at 06:41 AM.
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      04-15-2012, 09:45 AM   #38
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scribed...

I feel like this thread is for me, lol.

Hope the results are good. I guess if there's any + I'll be happy.

People get so upset about intakes.....

If it was $100, would that be better?
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      04-15-2012, 12:20 PM   #39
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Quote:
Originally Posted by TTurboBullett View Post
That's a really nice extra hot air snorkel you've created there!
Right above the hot turbos and engine.
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      04-15-2012, 01:03 PM   #40
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^Well, it is sucking in outside air out away from the sealed engine bay and that silicon hose should do a decent job of insulating...
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      04-15-2012, 01:03 PM   #41
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Quote:
Originally Posted by TTurboBullett View Post
Mike the afe still maintains the factory 4"x3" opening and has the auxiliary 3"x1.5" opening as well. On my car I set up the auxiliary port for cowl induction. I truly liked my afe sealed system as it was exactly what I was looking for from a design standpoint!
Looks like an interesting setup! Each snorkel above the radiator is around 1"x6", then they merge to the 3"x4". So you have both of those feeding in the 3"x4", then an additional port going in the side of the air box? If so then your version of this should work much better than the drawing I saw above of the AFE air feeds.

Mike
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      04-15-2012, 01:33 PM   #42
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The elite stage 2 looks very interesting tho IMO it usesthe two scoops very well to feed two different sides of the intake no? I feel like it is definitely more beneficial than stock?
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      04-15-2012, 01:33 PM   #43
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The elite stage 2 looks very interesting tho IMO it usesthe two scoops very well to feed two different sides of the intake no? I feel like it is definitely more beneficial than stock?
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      04-15-2012, 01:37 PM   #44
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Quote:
Originally Posted by Mike@N54Tuning.com
Quote:
Originally Posted by TTurboBullett View Post
Mike the afe still maintains the factory 4"x3" opening and has the auxiliary 3"x1.5" opening as well. On my car I set up the auxiliary port for cowl induction. I truly liked my afe sealed system as it was exactly what I was looking for from a design standpoint!
Looks like an interesting setup! Each snorkel above the radiator is around 1"x6", then they merge to the 3"x4". So you have both of those feeding in the 3"x4", then an additional port going in the side of the air box? If so then your version of this should work much better than the drawing I saw above of the AFE air feeds.

Mike
Thats why aFe designed two difference versions. The stand alone version which is the subject of this thread we have the option to customize it the way we want.

The other version, which is the same airbox, comes with two snorkels that utilize both inlets to the airbox.

What aFe needs to come up with is gaskets, and a rubber boot solution to completely seal the intake for those of us running higher boost.

If they don't do it I will have them made for this airbox IF my end results make it worth it.

Today is day three of having this intake on the 335is. The acceleration is smoother and with less input on the trottle and better response.

I will let the dyno and track times speak for themselves if indeed this setup does help with performance improvements.
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