EXXEL Distributions
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read

Go Back   BMW M3 and BMW M4 Forum > BMW F80 M3 / F82 M4 Technical Topics > Engine / Drivetrain / Exhaust / Bolt-ons / Tuning

Post Reply
 
Thread Tools Search this Thread
      08-11-2020, 05:59 PM   #23
Twistm4
I Drag Race My Track Car
Twistm4's Avatar
82
Rep
139
Posts

Drives: 2015 M4
Join Date: May 2020
Location: Southern IN

iTrader: (0)

CTS intake is on the way to test. I am going to turn it into an MST using 1/4" sheet metal and gold reflect-heat tape with auto trim etc. Turbos are so loud already after going straight piped/ catless I can't even imagine after these are on the car. However if data points to performance similar to the Injens we'll know that the integrated velocity stacks and square box design of BMW is the superior intake system (I am skeptical that is the case.)
__________________
ProSpoolFreaks Tuning E85
CBC Squad
Appreciate 0
      08-29-2020, 02:04 AM   #24
Twistm4
I Drag Race My Track Car
Twistm4's Avatar
82
Rep
139
Posts

Drives: 2015 M4
Join Date: May 2020
Location: Southern IN

iTrader: (0)

Testing so far is interesting....

Almost immediately short term fuel trims jumped quite a bit indicating more air (or skewed air mass readings) however it could be the car was on too much ignite. I noticed cutting out in third gear then put more 93 in and it stopped. However the original percentage was one I ran a lot on the stock intakes without issues.

The car seems to have lost a hint of torque and response, for exchange of any top end power? Doesn't feel like it.

I need to do more dragy tests. I have an abundance of 60-130s from before to compare to.

Ironically lately it has been pulling boost down in 5th gear back to stock levels for some reason (STFT too high?). It is not related to IATS. It did this before with the injen intakes but didn't seem to happen on the oem intakes which I find very interesting. This could be coincidence of too much E content but I will try to find out.

I built heat shields around the intakes and retained lower airboxes to help combat heat. IATS really aren't that bad at all. Cruising in boost it is 13-17* over ambient and idling and sitting in city traffic is 20-30* over. However turning the car off hot then starting back up and driving iats jump a bit more than stock did, but come down after some driving.
__________________
ProSpoolFreaks Tuning E85
CBC Squad
Appreciate 0
      08-29-2020, 04:09 AM   #25
Whyte_Diamonds
Second Lieutenant
Whyte_Diamonds's Avatar
United_States
253
Rep
270
Posts

Drives: F80
Join Date: Jan 2017
Location: California

iTrader: (0)

Quote:
Originally Posted by Twistm4 View Post
Testing so far is interesting....

Almost immediately short term fuel trims jumped quite a bit indicating more air (or skewed air mass readings) however it could be the car was on too much ignite. I noticed cutting out in third gear then put more 93 in and it stopped. However the original percentage was one I ran a lot on the stock intakes without issues.

The car seems to have lost a hint of torque and response, for exchange of any top end power? Doesn't feel like it.

I need to do more dragy tests. I have an abundance of 60-130s from before to compare to.

Ironically lately it has been pulling boost down in 5th gear back to stock levels for some reason (STFT too high?). It is not related to IATS. It did this before with the injen intakes but didn't seem to happen on the oem intakes which I find very interesting. This could be coincidence of too much E content but I will try to find out.

I built heat shields around the intakes and retained lower airboxes to help combat heat. IATS really aren't that bad at all. Cruising in boost it is 13-17* over ambient and idling and sitting in city traffic is 20-30* over. However turning the car off hot then starting back up and driving iats jump a bit more than stock did, but come down after some driving.
Now you have me curious what an intake like DINAN which utilizes the stock placement with carbon fiber tubing would do in a similar situation. Good stuff bro.
__________________
18' Mineral White F80 /// M3 Competition DCT
M Performance / Active Autowerke / RKP Carbon Fiber / Vorsteiner Carbon Fiber / PSM Dynamics Carbon Fiber / DINAN Stage 3 / Evolution of Speed / Evolution Racewerks / Wagner Tuning / Supreme Power / IND Distribution
Appreciate 0
      08-29-2020, 03:21 PM   #26
Twistm4
I Drag Race My Track Car
Twistm4's Avatar
82
Rep
139
Posts

Drives: 2015 M4
Join Date: May 2020
Location: Southern IN

iTrader: (0)

Quote:
Originally Posted by Whyte_Diamonds View Post
Now you have me curious what an intake like DINAN which utilizes the stock placement with carbon fiber tubing would do in a similar situation. Good stuff bro.
I did. I had the Injen Evolution which was a very similar style to oem. The filters were so tiny to fit inside the box I believe there was very little change. That one also threw a CEL for me one time roll racing.

So far I have had zero CEL or idle issues with the CTS. But if people had issues with BMS, I'm sure CTS is the same way.

Tonight I'm going to get 2 60-130 dragys once I verify it's not pulling boost in 5th like it was. Those results will determine whether or not I keep the intakes or resort to OEM.
__________________
ProSpoolFreaks Tuning E85
CBC Squad
Appreciate 1
      08-29-2020, 03:44 PM   #27
Whyte_Diamonds
Second Lieutenant
Whyte_Diamonds's Avatar
United_States
253
Rep
270
Posts

Drives: F80
Join Date: Jan 2017
Location: California

iTrader: (0)

Quote:
Originally Posted by Twistm4 View Post
Quote:
Originally Posted by Whyte_Diamonds View Post
Now you have me curious what an intake like DINAN which utilizes the stock placement with carbon fiber tubing would do in a similar situation. Good stuff bro.
I did. I had the Injen Evolution which was a very similar style to oem. The filters were so tiny to fit inside the box I believe there was very little change. That one also threw a CEL for me one time roll racing.

So far I have had zero CEL or idle issues with the CTS. But if people had issues with BMS, I'm sure CTS is the same way.

Tonight I'm going to get 2 60-130 dragys once I verify it's not pulling boost in 5th like it was. Those results will determine whether or not I keep the intakes or resort to OEM.
Good stuff bro,

Would love to see the results.
__________________
18' Mineral White F80 /// M3 Competition DCT
M Performance / Active Autowerke / RKP Carbon Fiber / Vorsteiner Carbon Fiber / PSM Dynamics Carbon Fiber / DINAN Stage 3 / Evolution of Speed / Evolution Racewerks / Wagner Tuning / Supreme Power / IND Distribution
Appreciate 0
      08-30-2020, 12:31 AM   #28
Twistm4
I Drag Race My Track Car
Twistm4's Avatar
82
Rep
139
Posts

Drives: 2015 M4
Join Date: May 2020
Location: Southern IN

iTrader: (0)

Ok soo 3000DA CTS intake did 7.5 and a 7.3 invalid.

Last week OEM airbox did 7.26 with less slope but it was like 500DA out... big difference so hard to compare. Tomorrow I'll try oem intake hopefully conditions are similar so it is a fair comparison.
__________________
ProSpoolFreaks Tuning E85
CBC Squad
Appreciate 0
      08-30-2020, 01:42 AM   #29
erik-f80
Private
erik-f80's Avatar
Germany
15
Rep
85
Posts

Drives: BMW F80
Join Date: Jul 2017
Location: Germany

iTrader: (0)

Quote:
Originally Posted by Twistm4 View Post
Ok soo 3000DA CTS intake did 7.5 and a 7.3 invalid.

Last week OEM airbox did 7.26 with less slope but it was like 500DA out... big difference so hard to compare. Tomorrow I'll try oem intake hopefully conditions are similar so it is a fair comparison.
Do you have some updates pictures how your system looks like now?
__________________
Instagram: erik_f80
Appreciate 0
      08-30-2020, 03:00 PM   #30
Twistm4
I Drag Race My Track Car
Twistm4's Avatar
82
Rep
139
Posts

Drives: 2015 M4
Join Date: May 2020
Location: Southern IN

iTrader: (0)

Quote:
Originally Posted by erik-f80 View Post
Do you have some updates pictures how your system looks like now?
CTS with custom heat shields I made. IATS have been great actually lower than OEM once you get moving around.

But I swear to god, OEM intakes may actually OUTFLOW these cone filter designs somehow and I can't believe it.

The data keeps suggesting intakes mod literally slow the cars down. I think it actually has to do with the SAI plug not sealing correctly *right past the MAF) and letting in unmetered air. Those of you with aftermarket intakes have noticed some seem to run better than others or some give CEL with others dont. In theory that doesn't make sense while some would... Then I realized it's because that SAI hose is not sealing in there and that's probably why these intakes slow these cars down.

So I went to ACE and got a slightly thicker O ring to hopefully help the seal. Tonight I'm gonna go out and do one more 60-130 on CTS then swap to OEM and see what the dragy reveals.
Attached Images
 
__________________
ProSpoolFreaks Tuning E85
CBC Squad
Appreciate 3
9M71922.00

      08-30-2020, 05:54 PM   #31
9M71
Captain
922
Rep
935
Posts

Drives: 2018 F80 M3 | 6MT
Join Date: Jul 2019
Location: NYC

iTrader: (2)

The top portion of the boxes you fabbed up look real good. Would love some DIY or some pointers on how you got it done. Never played with sheet metal before.
Appreciate 0
      08-30-2020, 09:22 PM   #32
Twistm4
I Drag Race My Track Car
Twistm4's Avatar
82
Rep
139
Posts

Drives: 2015 M4
Join Date: May 2020
Location: Southern IN

iTrader: (0)

Quote:
Originally Posted by 9M71 View Post
The top portion of the boxes you fabbed up look real good. Would love some DIY or some pointers on how you got it done. Never played with sheet metal before.
Heres what it looked like first prototype. Literally just get some thin metal and start cutting and bending stuff and you'll get it figured out I promise. Just takes time.
Attached Images
 
__________________
ProSpoolFreaks Tuning E85
CBC Squad
Appreciate 0
      08-30-2020, 09:25 PM   #33
Twistm4
I Drag Race My Track Car
Twistm4's Avatar
82
Rep
139
Posts

Drives: 2015 M4
Join Date: May 2020
Location: Southern IN

iTrader: (0)

CTS did another 7.3 in 3000DA. So averaged together it is now the top contender but JUST barely. Updating first post!
__________________
ProSpoolFreaks Tuning E85
CBC Squad
Appreciate 0
      08-30-2020, 09:49 PM   #34
Wanted_M
Private First Class
Wanted_M's Avatar
United_States
67
Rep
160
Posts

Drives: Frozen Blue M4CS
Join Date: Jul 2009
Location: Norcal

iTrader: (0)

Could you post a better picture of where you cut for the stock boxes? I may follow suit.
Appreciate 0
      08-30-2020, 10:04 PM   #35
Twistm4
I Drag Race My Track Car
Twistm4's Avatar
82
Rep
139
Posts

Drives: 2015 M4
Join Date: May 2020
Location: Southern IN

iTrader: (0)

Quote:
Originally Posted by Wanted_M View Post
Could you post a better picture of where you cut for the stock boxes? I may follow suit.
I can next time they are out. Basically just imagine the car moving and think about where air would be hitting the boxes outside of the intended feed tunnel. Also, right under the airboxes is the liner from the wheel well. That is a very cool area going down the highway.
__________________
ProSpoolFreaks Tuning E85
CBC Squad
Appreciate 4
      08-31-2020, 11:52 AM   #36
TakeOne
Just1MoreMod
TakeOne's Avatar
United_States
163
Rep
599
Posts

Drives: F80 M3, F48 X1
Join Date: May 2008
Location: mid-atlantic

iTrader: (5)

@Twistm4
You been putting in the wrench time! I applaud you man! This guy deserves more rep points!
__________________
Stage 1 - 11.7 @123mph, Stage 2 - 11.4 @126mph
Full E85 - 11.4 @130mph, Pure Turbos - 10.8 @134mph
https://www.youtube.com/just1moremod
https://www.instagram.com/just1moremod/
Appreciate 0
      09-01-2020, 05:05 PM   #37
Twistm4
I Drag Race My Track Car
Twistm4's Avatar
82
Rep
139
Posts

Drives: 2015 M4
Join Date: May 2020
Location: Southern IN

iTrader: (0)

I figured out possibly why so many people claim intakes lose power. It's the j pipe to inlet hose port. It is not sealed near as tight as oem and therefore pulling in un metered air. This in turn causes STFT to rise and the ecu to pull back boost slightly. I took my o ring off and went to parts store and found a viton ring in a slightly thicker size. Also made a boost leak testor out of a PVC cap and air fitting . I'm gonna try to boost leak test soon to see if my cts charge pipes are also not sealed against the turbos. However with my times and no codes I highly doubt. Always nice to check though!

Last edited by Twistm4; 09-01-2020 at 08:35 PM..
Appreciate 2
TopJimmy415.00

      09-01-2020, 10:57 PM   #38
jballer123
First Lieutenant
United_States
58
Rep
336
Posts

Drives: 2011m3 zcp
Join Date: Jul 2011
Location: san diego, ca

iTrader: (6)

Good job!!!
Appreciate 0
      09-02-2020, 01:19 AM   #39
erik-f80
Private
erik-f80's Avatar
Germany
15
Rep
85
Posts

Drives: BMW F80
Join Date: Jul 2017
Location: Germany

iTrader: (0)

Quote:
Originally Posted by Twistm4 View Post
I figured out possibly why so many people claim intakes lose power. It's the j pipe to inlet hose port. It is not sealed near as tight as oem and therefore pulling in un metered air. This in turn causes STFT to rise and the ecu to pull back boost slightly. I took my o ring off and went to parts store and found a viton ring in a slightly thicker size. Also made a boost leak testor out of a PVC cap and air fitting . I'm gonna try to boost leak test soon to see if my cts charge pipes are also not sealed against the turbos. However with my times and no codes I highly doubt. Always nice to check though!
Do a smoke test. Then you are able to see exactly where you have leaks in the system.
__________________
Instagram: erik_f80
Appreciate 0
      09-03-2020, 01:18 AM   #40
tomlong
First Lieutenant
tomlong's Avatar
United_States
183
Rep
342
Posts

Drives: F80 M3 Sedan
Join Date: Sep 2019
Location: Chicago

iTrader: (0)

Best IATs I've achieved on OEM unmodified air intakes with K&N filters was 8F above ambient under light load. Highway cruising with rpms @2k

Best IATs I've achieved in WOT is 14F above ambient on OEM unmodified intakes. No scoops either.

Both measured during Summer. I would expect better numbers as temperatures drop with seasonality.

I think these are good results for stock air intakes. Personally, I don't need to hear the sound of my turbo spooling to remind me I drive an F8x M car from BMW.
__________________
Instagram: @tomlong
Appreciate 0
      09-03-2020, 02:21 PM   #41
Twistm4
I Drag Race My Track Car
Twistm4's Avatar
82
Rep
139
Posts

Drives: 2015 M4
Join Date: May 2020
Location: Southern IN

iTrader: (0)

What I find interesting is overall peak iats are lower with the cones than OEM. Also, heat shield helped a lot. Without a doubt the drivers side Intake is the one that gets blazing. One piece of aluminum made a big impact in city driving iats.
Appreciate 1
      10-08-2020, 07:01 PM   #42
Twistm4
I Drag Race My Track Car
Twistm4's Avatar
82
Rep
139
Posts

Drives: 2015 M4
Join Date: May 2020
Location: Southern IN

iTrader: (0)

So to conclude this. Going fully catless and intakes in cool weather with air feeds does make the car faster. Averaging the final 3 dragys after those two mods car was running consistent 7.0s 60-130 on an off the shelf tune which is nuts.

It's currently getting sent to moon via ProSpoolFreaks on MHD and car is absolute monster up top. Hope to get some deep 6s soon!
__________________
ProSpoolFreaks Tuning E85
CBC Squad
Appreciate 0
      10-08-2020, 09:58 PM   #43
jballer123
First Lieutenant
United_States
58
Rep
336
Posts

Drives: 2011m3 zcp
Join Date: Jul 2011
Location: san diego, ca

iTrader: (6)

Great work, thanks
Appreciate 0
      10-08-2020, 10:10 PM   #44
jpy1980
Major
jpy1980's Avatar
United_States
804
Rep
1,320
Posts

Drives: 2015 BMW M3 -Smurfy Blue Vinyl
Join Date: Sep 2018
Location: Los Angeles

iTrader: (2)

Ah but all this testing hasnít answered the most important question of all. The most important factor for all of us here. The main reason why we get these intakes..........

Which one sounds the best?!!! Hahahah
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 07:15 PM.




f80post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST