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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 > AMS Intercooler Installation & IAT Comparison



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      02-01-2010, 01:45 AM   #1
usc335
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AMS Intercooler Installation & IAT Comparison

I thought it was odd that there are very few photographs of AMS's Intercooler installed. So, here are some photographs of my installation:

(1) Stock FMIC Removed


(2) Plastic Shroud Trimmed to Fit Intercooler


(3) AMS Intercooler Installed (Underside)


(4) Front View


(5) Right Front View


(6) Left Front View


(7) Right Rear View


(8) Left Rear View


(9) Full Front View


(10) Completed


(11) PROcede v4 Stage 1 Inlet Air Temp (IAT) 3rd Gear Datalog Comparison Between Stock FMIC and AMS FMIC

(a) Both runs started at 86 F.
(b) The Stock FMIC IAT increased by 30 F.
(c) The AMS FMIC IAT increased by only 12 F.

(12) AMS FMIC IAT Datalog 2nd-3rd-4th Gear Full Throttle Datalog
[Note 1: Ambient Air Temp = 58 F]
[Note 2: Run performed slightly uphill]

(a) IAT at Start of Run = 86.1 F
(b) IAT at End of Run = 112.3 F
(c) Delta IAT = 26.2 F
(d) Yes, my shifts were really lazy.
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Last edited by usc335; 02-07-2010 at 12:59 PM. Reason: Added 2-3-4 Gear Datalog
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      02-01-2010, 02:01 AM   #2
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Very nice. Great pics, and the datalog definitely shows a difference.
Curious, what does one do with the old intercooler? Does it need to be returned for a core charge?
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      02-01-2010, 02:30 AM   #3
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Shows what a great intercooler the AMS is. Top marks for it's performance.

One little niggle I've noticed on a couple of AMS installs (and please don't take this the wrong way)...........is the core slightly off centre, because the end tanks don't show equally on both sides of the bumpers' opening??
Maybe it can be adjusted slightly to the left. Won't hurt to try.

Last edited by Sparky66; 02-01-2010 at 02:41 AM.
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      02-01-2010, 02:46 AM   #4
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Quote:
Originally Posted by Lobaeux View Post
Very nice. Great pics, and the datalog definitely shows a difference.
Curious, what does one do with the old intercooler? Does it need to be returned for a core charge?
I keep all my old parts, but the old intercooler basically just takes up space in the garage now. No core return because it's not like any parts as salvageable.
Quote:
Originally Posted by Sparky66 View Post
Shows what a great intercooler the AMS is. Top marks for it's performance.

One little niggle I've noticed on a couple of AMS installs (and please don't take this the wrong way)...........is the core slightly off centre, because the end tanks don't show equally on both sides of the bumpers' opening??
Maybe it can be adjusted slightly to the left. Won't hurt to try.
I think it's an optical illusion because the factory plastic shroud is not symmetrical (take a look at the pictures again); the intercooler end tanks aren't symmetrical; and the mounting holes line up the intercooler, so there's not really much adjustment you can make. But, thanks for the feedback.
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Last edited by usc335; 02-01-2010 at 03:01 AM.
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      02-01-2010, 02:53 AM   #5
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very nice..
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      02-01-2010, 03:35 AM   #6
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looks great....i am thinking debating between ams and helix.
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      02-01-2010, 07:34 AM   #7
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Looking good!

BTW your car still looks like new from below! No comparison to mine after a couple winters

Gotta love the socal climate
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      02-01-2010, 12:09 PM   #8
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Quote:
Originally Posted by usc335 View Post
I keep all my old parts, but the old intercooler basically just takes up space in the garage now. No core return because it's not like any parts as salvageable.

I think it's an optical illusion because the factory plastic shroud is not symmetrical (take a look at the pictures again); the intercooler end tanks aren't symmetrical; and the mounting holes line up the intercooler, so there's not really much adjustment you can make. But, thanks for the feedback.

+1 on both accounts.
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      02-01-2010, 12:11 PM   #9
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nice comparison! I did some back-to-back dyno tests with the VK FMIC and the AMS FMIC, but I never posted the results. I did 6 back to back pulls with very little cool-down (as in ~1-2 minutes between each pull at most). The only issue is that I did the tests on different days, and the day I tested the AMS fmic it was ~15░ hotter out.

Aside from the different days, I was on the same tank of gas.. so everything else was as close to the same as possible. By the last pull (#6) the car made the same power as the VK, even though it was hotter out. So clearly it was more efficient.

Had it been the same temp the results would have been more obvious, that's the only reason I never posted the results... just a bit misleading.
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      02-01-2010, 12:14 PM   #10
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I am surprised the IAT difference wasn't greater? 18F seems kind of small. What gear was this?

Last edited by Former_Boosted_IS; 02-01-2010 at 12:24 PM.
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      02-01-2010, 12:14 PM   #11
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Just curious which shroud requires trimming, is it the shroud towards the front of the car on the bumper side?

Or is it the shroud behind the intercooler? (near radiator perhaps?)
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      02-01-2010, 12:15 PM   #12
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Quote:
Originally Posted by JPSlick View Post
Just curious which shroud requires trimming, is it the shroud towards the front of the car on the bumper side?

Or is it the shroud behind the intercooler? (near radiator perhaps?)
infront of the IC
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      02-01-2010, 12:20 PM   #13
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Quote:
Originally Posted by jpsimon View Post
infront of the IC
Thought so... thanks.

Just trying to find an intercooler that requires the least trimming.
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      02-01-2010, 04:03 PM   #14
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Quote:
Originally Posted by Former_Boosted_IS View Post
I am surprised the IAT difference wasn't greater? 18F seems kind of small. What gear was this?
It was a third gear pull. The temp difference is one thing, but you also have to look at the slope of the curve. The stock FMIC IAT is increasing at a much higher rate. I'm sure if I did a full 1/4 mile run the temperature difference would be quite dramatic.
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      02-01-2010, 07:00 PM   #15
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Quote:
Originally Posted by usc335 View Post
It was a third gear pull. The temp difference is one thing, but you also have to look at the slope of the curve. The stock FMIC IAT is increasing at a much higher rate. I'm sure if I did a full 1/4 mile run the temperature difference would be quite dramatic.
can you do a 2-3-4 gear wide open throttle run so we can see a valid comparison of AITs vs other FMICs?
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      02-02-2010, 12:48 AM   #16
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Quote:
Originally Posted by TTurboBullett View Post
can you do a 2-3-4 gear wide open throttle run so we can see a valid comparison of AITs vs other FMICs?
I plan on doing that. I'll update this thread when I do.
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      02-02-2010, 05:51 AM   #17
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Nice info usc335, gives a rough idea for me on how my AMS FMIC performs
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      02-02-2010, 07:50 AM   #18
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Quote:
Originally Posted by usc335 View Post
I plan on doing that. I'll update this thread when I do.
usc, that would offer the forum some great data! Good work.
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      02-02-2010, 10:15 AM   #19
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I agree if you did 3-4 pulls in a row with each intercooler, you will notice the stock FMIC will hit around 150-160 degrees F. This was shown with other tests such as the one FormerBoostedIS did. That is where the aftermarket FMIC's will shine as they will stay much cooler.
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      02-02-2010, 12:09 PM   #20
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I liked the full frontal shot...
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      02-05-2010, 02:05 AM   #21
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As requested, I added Picture/Graph 12 showing a 2-3-4 Full Throttle Datalog with RPM, Boost, and IAT.
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      02-05-2010, 12:48 PM   #22
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Just got one of these on my car as well, honestly guys, the trimming is minimal for the AMS intercooler. It's basically some flashing on the black plastic bumper support that really only seems to be there as a function of coming out of the mold that way. You just trim it down to create more usable volume, which the AMS core does 10 fold.

The fitment wasn't THAT hard, a bit akward on jack stands but if you have 2 people (one to support it) during fitment, and a good dremmel, this will be a breeze. I'm more than happy with mine!
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