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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > N55 | HP direct replacement FOAM AIR FILTER



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      08-06-2010, 04:14 PM   #1
FrankiE90
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Thumbs up N55 | HP direct replacement FOAM AIR FILTER | DYNO'D

UPDATE: 0816
N55 DYNO Baseline

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Dyno'd at MD Automotive - Dynojet
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I drove over 1000 miles on it.
hot, cold weather, high elevation, you get it - ran it on the upper RPM's.

the filter work'd fine, no errors.
I didn't feel any power loss during the test - you hear a bit more induction sound and it seem to pull a bit harder on top, but may be just the sound affect. Only other performance mod I have are the RPI scoops.

I cracked open the intake to check out the foam filter.
little debris
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With the dyno numbers it shows HP Foam filter with a 4-5whp gain.
Honestly, i'm more surprised with the numbers the N55 pulled baseline.
The foam filter did not cause any drop in HP, so for any members wondering... you don't have to wondering anymore.

I still have the filter on, for any N55 owners looking for a simple
performance mod, here's an option. I know that the foam filter was
being tested on a 135 DCT N55 as well.

Thanks Harold, the filter works great!

-----------------------------------------------

Hey hey, i got mail.

nice package - let's open it.
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Harold at HP sent over a FOAM AIR FILTER for the N55 to me.
here's a link for more details.
http://www.e90post.com/forums/showth...oam+filter+n55

I have no opinions, i'm not concerned,
honestly it's a direct replacement filter - I'm gonna pop it in and run
it!

And, happens so, i'm going up north to a meet this weekend so i'm gonna run it long distance.
Let's see what happens.

"im' gonna beat the chit out of my bimmer!"

Harold maybe on my way back, i'll visit Creamiz in SB and stop by.



They'll picts in the photo section on my little journey up north.


oh what, it's a filter.
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Foam? looks like i can wash dishes with this.
that's cool. well pack'd - looks like direct fitment - i'm gonna pop it in
the bimmer.
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UPDATED:
4pm


exposed
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pop the metal tap
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lift up, pull out stock filter
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drop in new filter, pop tabs back on.
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Last edited by FrankiE90; 10-13-2010 at 05:33 AM.
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      08-06-2010, 05:46 PM   #2
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I wouldn't be surprised to find out that you actually lost power
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      08-06-2010, 05:58 PM   #3
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PHOUNG! PHENOMENON!! filter looks sexy..loving the red foam...see you tomorrow...and your new gf
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      08-06-2010, 06:05 PM   #4
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Quote:
Originally Posted by Jason4486 View Post
I wouldn't be surprised to find out that you actually lost power

awesome!
that's why i'm the guinea pig.

I'll dyno it, that way we all can have a reference.
will report back.


Quote:
Originally Posted by creaminz View Post
PHOUNG! PHENOMENON!! filter looks sexy..loving the red foam...see you tomorrow...and your new gf

my new GF? oh oh my space gray biatchhh!!!
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      08-06-2010, 06:17 PM   #5
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nice Frankie!.. I know how excited you are to mod a turbo'd car
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      08-16-2010, 01:45 PM   #6
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Dyno'd after trip up to SF and a week of daily driving.

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      08-16-2010, 02:15 PM   #7
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Quote:
Originally Posted by Jason4486 View Post
I wouldn't be surprised to find out that you actually lost power
The the opposite is true, the filter made power and a very decent amount at that.
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      08-16-2010, 02:23 PM   #8
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damn these engines are putting down nice numbers stock..
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      08-16-2010, 02:24 PM   #9
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Very impressive numbers! What octane were you running? also how many miles do you have on your car?
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      08-16-2010, 02:51 PM   #10
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Is the power at the wheels or at the crank ?
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      08-16-2010, 02:58 PM   #11
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Quote:
Originally Posted by shockin330i View Post
damn these engines are putting down nice numbers stock..
I was surprise to see those numbers.
let's see what happens when I get an exhaust on there.

Quote:
Originally Posted by TwinScrollE90 View Post
Very impressive numbers! What octane were you running? also how many miles do you have on your car?
91 octane
2200 miles.

Quote:
Originally Posted by cstavaru View Post
Is the power at the wheels or at the crank ?
to the wheel.
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      08-16-2010, 03:05 PM   #12
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Nice results man.
I'm sorry I missed you.
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      08-16-2010, 03:21 PM   #13
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Quote:
Originally Posted by Mr. 5 View Post
Nice results man.
I'm sorry I missed you.

thanks.
no prob.
maybe there needs to be a dyno day over there at MD Auto soon.
Mark's a good guy.
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      08-16-2010, 03:24 PM   #14
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Dam Frankie, you should have hit me up. I've been meaning to head back over to MD and getting a few runs on the dyno.

Awesome numbers though!
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      08-16-2010, 03:51 PM   #15
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Are they selling these yet or is it still in "testing?"
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      08-16-2010, 03:58 PM   #16
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Quote:
Originally Posted by l4wr3nc3 View Post
Dam Frankie, you should have hit me up. I've been meaning to head back over to MD and getting a few runs on the dyno.

Awesome numbers though!

oh wha?...
was last min.
also was my anniversary weekend - the wifey was waiting.

I'm going back this month, hit u up when I do.



Quote:
Originally Posted by shockin330i View Post
Are they selling these yet or is it still in "testing?"
yeah Harold over at HP Autowerks has them.
it's under 60$.
just pm him.
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      08-16-2010, 04:09 PM   #17
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60 bucks isn't bad for a good 3 or 4hp..
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      08-16-2010, 05:25 PM   #18
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Quote:
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60 bucks isn't bad for a good 3 or 4hp..
Look at the torque gain as well!
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      08-16-2010, 05:35 PM   #19
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Just placed my order I cant wait ... might get a few more hp bc im running 93 !
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      08-16-2010, 05:43 PM   #20
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Quote:
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Just placed my order I cant wait ... might get a few more hp bc im running 93 !
You were one of the last few to get the filter. We are not going to see the next shipment for another 3-4 weeks.
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      08-16-2010, 06:11 PM   #21
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You oiled the filter, right?
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      08-16-2010, 06:27 PM   #22
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Quote:
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You oiled the filter, right?

first thing i check'd when i got it.
came already oiled.
don't want get it to oily.
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