ARM Relocated Inlets Kit Initial Observations: Test Drive Notes

typedRew

Sergeant
Feb 25, 2019
412
221
0
Ride
2009 335i xDrive
any additional thoughts now that you've had the arm kit a while?
 

typedRew

Sergeant
Feb 25, 2019
412
221
0
Ride
2009 335i xDrive
its sitting in my living room with the rest of my summer install stash, just curious if there were any buyers remorse at this point

im going to be changing so much at once itll be hard for me to quantify exact benefits of everything but im looking forward to it
 

matreyia

Major
Apr 19, 2017
1,780
711
0
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335i e93
its sitting in my living room with the rest of my summer install stash, just curious if there were any buyers remorse at this point

im going to be changing so much at once itll be hard for me to quantify exact benefits of everything but im looking forward to it

If you need relocated inlets, buy these. They are far cheaper than the competition and some competitors don't even have some parts that this kit has. Now, you will have to use the 335D expansion tank, vrsf charge pipe, and 335D expansion tank relief hose to make it fit snuggly...but other than that, the kit is top notch. I wanted the PR kit, but it was too expensive and did not have a couple of the parts this kit has. I did have to order some coolant hoses and expansion tank wire extension from Precision Raceworks.
 

Estradan54

New Member
Jul 5, 2020
1
0
0
Lol I didn’t have no issue with installing the inlets itself. Just that I messed up by adding a bit of Hamd soap to sip in the inlet but you don’t need to do that, it slides in easy without and that’s what held me back from it slipping off when I tighten the clamp. But the only issue is not having the instructions haha or Arm having the diy pdf. Confused at the moment where to go from, with the tank reservoir and steering fluid tank, no hardware for that
 

matreyia

Major
Apr 19, 2017
1,780
711
0
Ride
335i e93
Lol I didn’t have no issue with installing the inlets itself. Just that I messed up by adding a bit of Hamd soap to sip in the inlet but you don’t need to do that, it slides in easy without and that’s what held me back from it slipping off when I tighten the clamp. But the only issue is not having the instructions haha or Arm having the diy pdf. Confused at the moment where to go from, with the tank reservoir and steering fluid tank, no hardware for that

Are you saying you had no problem installing this kit with your engine inside the car and not outside?
 

MaxNix

New Member
Jul 20, 2020
6
1
0
Ride
335is coupe DCT
4. dinan oil cooler, csf radiator, + thermostat delete adapter replace with 175ºF thermostat yielded - 198ºF operating temperatures average
5. ARM Motorsports Relocated Inlets with turbo exhaust manifold heat shield - separates the upper and lower engine and isolates the turbo exhaust manifold from the intake cones area in at attemp contain AIT. - Oil now, operates at 210 - 220ºF

Definitely want oil over 212° F to evaporate condensated water. Not at clear on how any shielding prevents open cone filters in the engine compartment prevents intake from ingesting warmer than ambient air which will raise IAT and lower performance.

I also have the ECS tuning front grill air scoops. Regardless of what the armchair engineers say on the forums, you will want those front grill scoops if you have dual cones. The focused direction of the air flow into the air ducts is incredibly helpful.

So "directed air flow" is better than ducted air flow? How does that work? I would think ducted ambient air to a sealed in take plenum is always better than mixing ambient air with heated engins compartment air. Also, back pressurizing you engine compartment is actually reducing flow through the ducted radiators.

Armchair engineering, indeed!
 

matreyia

Major
Apr 19, 2017
1,780
711
0
Ride
335i e93
Definitely want oil over 212° F to evaporate condensated water. Not at clear on how any shielding prevents open cone filters in the engine compartment prevents intake from ingesting warmer than ambient air which will raise IAT and lower performance.



So "directed air flow" is better than ducted air flow? How does that work? I would think ducted ambient air to a sealed in take plenum is always better than mixing ambient air with heated engins compartment air. Also, back pressurizing you engine compartment is actually reducing flow through the ducted radiators.

Armchair engineering, indeed!

This has been tested and it's old news. I have driven both scenarios and I recommend the scoops. If you don't agree and want to follow your own way, by all means.

Yes, separated plenums are better shielding, that is NOT what this car has. Pay attention before criticizing. If you have my setup - which is open cone, then you should do all you can to get cooler air into the cone area. If you have a plenum, this is not the thread for you. Stick with your plenum which keeps air cooler than open cone setups.
 

MaxNix

New Member
Jul 20, 2020
6
1
0
Ride
335is coupe DCT
This has been tested and it's old news. I have driven both scenarios and I recommend the scoops. If you don't agree and want to follow your own way, by all means.

Yes, separated plenums are better shielding, that is NOT what this car has. Pay attention before criticizing. If you have my setup - which is open cone, then you should do all you can to get cooler air into the cone area. If you have a plenum, this is not the thread for you. Stick with your plenum which keeps air cooler than open cone setups.
Oh, OK. And COVID-19 is a hoax, right. Ever hear of Boyle's Law? Might want to study it.. Data, not "feelings" is what matters.

Keep believing.
 

typedRew

Sergeant
Feb 25, 2019
412
221
0
Ride
2009 335i xDrive
Oh, OK. And COVID-19 is a hoax, right. Ever hear of Boyle's Law? Might want to study it.. Data, not "feelings" is what matters.

Keep believing.
fucking yikes

‘new member’ coming out swinging
 

matreyia

Major
Apr 19, 2017
1,780
711
0
Ride
335i e93
"... I would think ducted ambient air to a sealed in take plenum is always better than mixing ambient air with heated engins compartment air. ...."

Oh goddamn....there's always one bound to show up. Are you stupid? I just told you exactly this. A plenum will always be better at separating cool air from intake. Now go away.
 
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Reformatt

Specialist
Oct 28, 2019
81
41
0
53
Houston
Ride
2010 335i E92
I know I am a bit late to the party on the ARM install post but....

Here is my 2c worth... not fun engine in install...but all things being equal inlet installs no matter the brand will come with plenty of bad words being uttered during a engine in install.

The plus the price was enticing.

The negative if I had to do it over I would of just spent the money and bought the turner motor sports relocation kit that comes with a custom tank and pre-made electrical connectors no splicing required.

After the installation I ended up ordering the turner motor sports coolant tank kit it’s expensive but just wasn’t comfortable with rerouting instructions for the coolant line.
You can get the 335d tank but I ended up buying the custom tank hopefully that solves 2 issues the plastic tanks failures and the coolant line routing isn’t nearly as sketchy.
 

seb.apprenti

Corporal
Nov 28, 2018
200
103
0
46
reunion island
Ride
335 i e92
If you need relocated inlets, buy these. They are far cheaper than the competition and some competitors don't even have some parts that this kit has. Now, you will have to use the 335D expansion tank, vrsf charge pipe, and 335D expansion tank relief hose to make it fit snuggly...but other than that, the kit is top notch. I wanted the PR kit, but it was too expensive and did not have a couple of the parts this kit has. I did have to order some coolant hoses and expansion tank wire extension from Precision Raceworks.
excuse me my friend, I have a question to ask you, are you still satisfied with the arm kit?
I'm considering buying it, but there are so many different brands...PR, VRSF, MMP EBAY
arm seems to me to be of good quality