07-03-2012, 11:56 AM | #1 |
BMW > Audi+ Merc. Simple math.
36
Rep 149
Posts |
Opinions and experience on cold air intakes
Hey there,
I'm looking for some input wheither I should get a CAI or not. Currently running a flash upgrade and eisenmann race, thought it could be a nice complement. What setup are you running? Whats the verdict? BR /H
__________________
___________________________________________
Will drive: 2016 M2 Drives: 2014 Wrangler Unlimited with goodies Drove: 2014 M5 Competition Package, 2012 1M, 2010 GT-R |
07-03-2012, 12:27 PM | #2 |
First Lieutenant
20
Rep 325
Posts |
Tons of info on this in the engine forum both here and e90 post. There is quite a bit of spirited debate around CAI on the N54 motor.
The two sides are, if you get tuned specifically for one you can see gains as long as you ensure it is a model that isn't just sucking in hot engine bay air. Or, the other side that says just get a drop in filter, keep it clean and call it a day. Personally, I wont be putting one on this car. |
Appreciate
0
|
07-03-2012, 12:35 PM | #3 | |
Colonel
297
Rep 2,898
Posts |
Quote:
And, of course, the temperature delta between ambient and the engine compartment pales in comparison to the heat contributed by the turbos. Neil |
|
Appreciate
0
|
07-03-2012, 12:53 PM | #4 | |
First Lieutenant
20
Rep 325
Posts |
Quote:
There are also dyno graphs that show a drop in HP and TQ after installation of CAI options. I agree with you that there are options that show gains, in general the answer to his question is "it depends". Those dependencies are very well explained and n54 motor forums both on 1 addicts and e90 post. |
|
Appreciate
0
|
07-03-2012, 12:54 PM | #5 | |
Colonel
297
Rep 2,898
Posts |
Quote:
Neil |
|
Appreciate
0
|
07-03-2012, 02:52 PM | #6 |
BMW > Audi+ Merc. Simple math.
36
Rep 149
Posts |
I know there are a few posts, none of them really sum up the facts.
How many different types are there? Which will fit? Which one is the best? Is it really worth it? Dirty air into the engine? In case of the aFe kits, should you go with the CAI box or dual-cone? And so forth.... BR /H
__________________
___________________________________________
Will drive: 2016 M2 Drives: 2014 Wrangler Unlimited with goodies Drove: 2014 M5 Competition Package, 2012 1M, 2010 GT-R Last edited by Underwood; 07-03-2012 at 03:03 PM.. |
Appreciate
0
|
07-03-2012, 03:02 PM | #7 |
Mbira
30
Rep 1,011
Posts
Drives: Sedonna Red 09 135i SOLD
Join Date: Jan 2010
Location: Garage cleaning Brake Dust
|
if you like to hear the turbo spool more and sucking noises from the intake than by all means get a CAI,,Personnally i had 3 different CAI's on my last ride and got VERY tired of all the noise,,,at first it was cool but for the 135i i bought a bMS drop in and am going with the more refined sound..My exhaust is more of what i want to here rather than my car sounding more like a vacuum cleaner LOL..But the bottom line is if you want the sounds and enjoy them than get a CAI...power wise it may add a touch of power and looks nice but on this car it's more for the sound.
|
Appreciate
0
|
07-03-2012, 03:33 PM | #8 |
Colonel
37
Rep 2,084
Posts |
This guy measured a pretty good gain with Dinan CAI.
http://www.e90post.com/forums/showth...89#post6763989 |
Appreciate
0
|
07-03-2012, 03:39 PM | #9 |
Resident Kerbalnaut
479
Rep 10,703
Posts |
Theres a difference between sucking in hot engine air versus the secondary heat transfer caused by contact with the turbos
|
Appreciate
0
|
07-04-2012, 03:08 AM | #11 | |
BMW > Audi+ Merc. Simple math.
36
Rep 149
Posts |
Quote:
Had a bit of contact with the Harold at HP Autowerks, he recommended the sealed CAI for my car. What do you guys say?
__________________
___________________________________________
Will drive: 2016 M2 Drives: 2014 Wrangler Unlimited with goodies Drove: 2014 M5 Competition Package, 2012 1M, 2010 GT-R |
|
Appreciate
0
|
07-04-2012, 05:49 AM | #12 | |
Major
341
Rep 1,293
Posts |
Quote:
|
|
Appreciate
0
|
07-04-2012, 05:57 AM | #13 |
Major
258
Rep 1,070
Posts |
Harold might be right . I have mine with other mods like an IC and akra exhaust .
|
Appreciate
0
|
07-04-2012, 07:49 AM | #14 |
Enlisted Member
4
Rep 33
Posts |
here is my CAI system. Without suck the heat from the engine bay. satisfied. downside is a bit pricy. i also installed ER charge pipe and tialQ valve later. total fit without any against each other.
__________________
1 M Coupe AW,
AK evolution, AK DP, AFE Stage2 CAI, ER CP, Cobb Stage2+FMIC, ETS FMIC, JRZ RS1, Stoptech BBK, |
Appreciate
0
|
07-04-2012, 07:59 AM | #16 |
Enlisted Member
4
Rep 33
Posts |
that's Original line from the car. i guess it might be sort of sensor line. You can see that GurppeM provide a soft foam tape to hold line to avoid the dumping damage.
__________________
1 M Coupe AW,
AK evolution, AK DP, AFE Stage2 CAI, ER CP, Cobb Stage2+FMIC, ETS FMIC, JRZ RS1, Stoptech BBK, |
Appreciate
0
|
07-04-2012, 08:03 AM | #17 |
NCOIC of Kickin It
79
Rep 946
Posts |
Yeah, ive seen it on my car too. Ive thought about replacing it with a softer line, and routing it under the intakes for a cleaner look, but i dont know how much pressure/vacuum runs through it, and i dont want the line to collapse.
|
Appreciate
0
|
07-04-2012, 08:16 AM | #18 |
Enlisted Member
4
Rep 33
Posts |
you cannot run under the airbox. You can see the source of the connection is same height as the airbox. It remains no space for a turn go under....
__________________
1 M Coupe AW,
AK evolution, AK DP, AFE Stage2 CAI, ER CP, Cobb Stage2+FMIC, ETS FMIC, JRZ RS1, Stoptech BBK, |
Appreciate
0
|
07-04-2012, 08:30 AM | #19 |
Resident Kerbalnaut
479
Rep 10,703
Posts |
How is the grouppe m intake bette than OEM though? I see the same diameter pipe and the airbox is of basically the same design - just in carbon fibre.
Am I missing something from the pics? |
Appreciate
0
|
07-04-2012, 10:36 AM | #21 | |
BMW > Audi+ Merc. Simple math.
36
Rep 149
Posts |
Quote:
I think i'll go for the single cone sealed intake from aFe.
__________________
___________________________________________
Will drive: 2016 M2 Drives: 2014 Wrangler Unlimited with goodies Drove: 2014 M5 Competition Package, 2012 1M, 2010 GT-R |
|
Appreciate
0
|
07-04-2012, 11:45 AM | #22 |
Major
341
Rep 1,293
Posts |
Do they do anything about the size of the opening where the snorkel meets the scoops in the front of the engine bay? I have to imagine this is where the air flow is restricted. The two openings are about 1"x3", and the air needs to make a 90* turn before it enters the snorkel. Would love to know if they found a solution. Thanks.
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|