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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N57 / M57 Turbo Diesel Discussions - 335d > air scoops



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      10-21-2016, 06:43 AM   #1
32valves
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air scoops

has anyone put air scoops on there car, and have you seen any benefits for air getting rammed to the turbos?
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      10-21-2016, 07:05 AM   #2
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lol here we go...
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      10-21-2016, 07:12 AM   #3
32valves
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nevermind I did a search on this forum...
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      10-21-2016, 08:00 AM   #4
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32, it's too late. You're in for it now 😎
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      10-21-2016, 08:17 AM   #5
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I tried to delete it but no happs.

Anyways I ordered some Macht Schnell scoops yedterday, and didn't think to research it but I probably should have ordered a water/meth controller instead.
I'm still running a Hobbs switch, oh well...
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      10-21-2016, 08:19 AM   #6
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scoops

at least they look better than the other brands...
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      10-21-2016, 08:19 AM   #7
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I dont know whay there is such a hate for scoops. They add HP and Puerto Rican 335d has proved it. Plus they get you laid.
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      10-21-2016, 08:21 AM   #8
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when I did my search, there were more negative comments than positive. lol
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      10-21-2016, 08:44 AM   #9
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Quote:
Originally Posted by 32valves View Post
when I did my search, there were more negative comments than positive. lol
Don't listen to those non believers... Get the red ones... I think its been scientifically proven that the red paint used has similar properties to the lubricant used by Clark Griswold on the sled disc allowing for reduced friction and increased ram effect. Just ask PR about it.


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      10-21-2016, 08:52 AM   #10
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HAHA Red scoops cost me a hole in my condenser and a $925 repair bill !!

Although on my daughter's car we have some ECS ones that DON'T rub in the back and do look BITCHIN !!
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      10-21-2016, 11:49 AM   #11
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jajaja you guys aint shit. ,mines are still on and they do work properly jajajajaja
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      10-21-2016, 12:52 PM   #12
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Lol ram air turbos
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      10-21-2016, 01:13 PM   #13
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Do they work?

Lol, must say, I had them on my 135i mainly for aesthetic purposes since I had a red interior. Of course I was curious if they would provide any benefit or not.

On the 135i, I felt it was pointless, as the air was already channeled nicely into the intake, forced by the twin turbos. I really don't think I felt a noticeable difference.

There are a few independent dyno graphs from the skeptics of these products, however, it is on an N/A V10 M5 and V8 M3, claims ranging from 4-14hp.

Seems they are effective at higher speeds to channel air for N/A engines.

Yet to see any hp+ claims with dyno for turbo charged cars.
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      10-21-2016, 01:41 PM   #14
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135i_vs_ I concur w you its noticeable at higher speeds as far as dyno I never did do it.
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      10-21-2016, 02:52 PM   #15
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I was thinking about something like a combo cowl-induction/pro-stock setup like this:
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      10-21-2016, 04:00 PM   #16
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OP your mistake was not getting the RED SCOOPS those are the most effective, plus they will leave you with NO CODES!!
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      10-22-2016, 07:15 AM   #17
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Yep red ones and no codes haters jajaja
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      10-23-2016, 12:32 PM   #18
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The limitation is the TINY holes which are in the horizontal plane. Their surface area (or port size) to pass air is significantly smaller than the 3" diameter intake tubing.

Also the air has to take a two 90 degree bends in rapid succession. One is un-radiused or virtually instantaneous--the transition from outside, horizontally oriented, laminar-flow air to quickly vertical, then a radiused transition to horizontal again into the airbox. This is to keep bugs, large debris, and heavier objects out of the airbox. I believe it was also designed this way to take outside, pressurized, laminar flow air and transition it to turbulent flow (increased massflow rate) and for sound abatement.

If you can open up these holes to exceed the port flow area of the tubing behind it, then perhaps your scoops could begin to make a difference.

Last edited by nicklockard; 10-24-2016 at 10:53 AM.. Reason: edited 'faster moving' to increased massflow rate.
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      10-24-2016, 09:47 AM   #19
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Rapid succession, horizontal and red lipstick on DSLs- got it.
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      10-24-2016, 10:19 AM   #20
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Chicks dig guys with Red Scoops and no codes.
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      10-24-2016, 10:52 AM   #21
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Quote:
Originally Posted by Frediesel View Post
Rapid succession, horizontal and red lipstick on DSLs- got it.



Yeah, whatever gains *could* theoretically be there are buried behind doing other mods first. I will not be the first to hog out those holes. Please, someone else do the testing
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      10-24-2016, 11:51 AM   #22
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Quote:
Originally Posted by nicklockard View Post


Yeah, whatever gains *could* theoretically be there are buried behind doing other mods first. I will not be the first to hog out those holes. Please, someone else do the testing
Your comments about the OEM setup were right on the money. But, it is pretty easy to improve things a lot and keep the stock filter.

Lots of testing and data in this thread:
http://www.e90post.com/forums/showthread.php?t=1179619
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