+1mm Modified Intake Lift Valvetronic Supports- 'MILVs' N52

CobraMarty · 05-30-2018, 07:01 AM

Quote:

Originally Posted by kc2mrg

@cobra .. first off i rarely if ever even get on here let alone to post anything lol. I've spent all day off and on reading this entire post and am very impressed with your ingenuity to develop these. I've been a professional BMW tech for 10+ years now and always love seeing what people come up with as far as mods for these things.

On that note .. I myself have a 2011 328xi auto wagon and am going to start modding it up. My question to you is would you like to keep in your files some dyno runs on a completely stock AWD and then if you'd like I can just add the new MILVs with no tune and see what it gains if any? My car has secondary cat delete and performance exhaust but I still have my stock exhaust and was going to install it to have a true "factory" baseline run on my car (97k miles)

I have to get some coin together before I can get a set but I am 100% interested in these along with a tune and a huge list of other costly stuff I wanna do haha

That would be great.

I don't think that there have been any AWD dyno done as of this time.
Having dyno results would be great.
Obviously before and after would be great.
For the after I would wait a few weeks to allow for some 'adaptation' ot be done by the ecu to see if that gains power.
Then a custom tune like from BPC and re-dyno would be great.

Previous results have shown +10HP across the whole rpm range.

kc2mrg · 06-03-2018, 09:32 PM

Ok will do sir! May take me a couple months but I plan to get a base dyno run anyways on it. Plans are 3IM, CAI, MILV, tune (may even trailer it down for a custom tune) headers (idk if I want catted or catless yet) and still keeping my secondary delete pipes and performance exhaust .. and whatever else I can find to get a bit extra umph out of my N52 lol

But when I get some of my credit cards paid down or at least one paid off then I can start spending money on my baby again

CobraMarty · 06-04-2018, 08:03 AM

For a CAI,

I've used-
-stock with carbon delete, silicone elbow and aFe filter panel
-EURO with silicone hose
-aFe Magnum FORCE Stage-2 PRO 5R Cold Air Intake.

I highly recommend the aFe. Don't need the silicone elbow with the aFe.

6ixSpd · 06-04-2018, 08:11 AM

+1 for AFE stage 2. Sounds awesome and the sealed box helps unlike most other options.

yupetc · 06-04-2018, 08:45 AM

What's the main difference between the Euro-box against AFE stage 2? I have the Euro-box and couldn't really tell if there's any real alarming features which will need improvement. Be interesting to know from actual users on these things.

Quote:

Originally Posted by CobraMarty

For a CAI,

I've used-
-stock with carbon delete, silicone elbow and aFe filter panel
-EURO with silicone hose
-aFe Magnum FORCE Stage-2 PRO 5R Cold Air Intake.

I highly recommend the aFe. Don't need the silicone elbow with the aFe.

Biginboca · 06-04-2018, 08:50 AM

I’m also a fan of the AFE but I wish they included a better secondary intake tract, not just openings on the front of the box.

If they had included some kind of short snorkel that led to the gap over the headlight (and replaced the rubber seal that fills the gap there) it could have been just about perfect.

Taskmaster · 06-04-2018, 08:58 AM

AFE's filter is larger, and the intake tract from the filter to the throttle body is larger (but necks down the the proper diameter to match the TB opening)

6ixSpd · 06-04-2018, 12:14 PM

Quote:

Originally Posted by Taskmaster

AFE's filter is larger, and the intake tract from the filter to the throttle body is larger (but necks down the the proper diameter to match the TB opening)

This. And it sounds a lot better than the stock BMW stuff.

varoadking · 06-11-2018, 07:41 PM

Quote:

Originally Posted by hassmaschine

hah! sprint booster = trash...

It was actually rather useful on a stock 128i...which I clearly don't have anymore...

Taskmaster · 06-12-2018, 10:19 AM

Quote:

Originally Posted by varoadking

It was actually rather useful on a stock 128i...which I clearly don't have anymore...

Step on the pedal harder.

Odd that it was causing those limp mode issues though.

arhoads335i · 06-13-2018, 06:49 AM

Question, do MILVs help at partial throttle, or they more for WOT conditions?

Taskmaster · 06-13-2018, 07:17 AM

Quote:

Originally Posted by arhoads335i

Question, do MILVs help at partial throttle, or they more for WOT conditions?

The effective lift is only really changed at WOT - but I noticed more partial throttle torque as well.

CobraMarty · 06-13-2018, 08:40 AM

MILVs only increase intake valve lift after 80% Eccentric Cam position, which is about 80% throttle.

Probably should try and watch ECC position during real time driving. It might go beyond 80% position sooner and more often than I think.
IDK if my scan tool will show ECC position.

hassmaschine · 06-13-2018, 07:51 PM

I should point out its not a "hard" value where over X% throttle, you get extra lift and under that threshold, you get nothing - but basically the difference below about 75-80% max lift, the difference is so small you would never notice.

I'll have to post the lift curve VS eccentric shaft position for a MILV tune to illustrate that point. But at lower lift values I don't change anything.

W37V · 06-13-2018, 08:13 PM

Quote:

Originally Posted by hassmaschine

I should point out its not a "hard" value where over X% throttle, you get extra lift and under that threshold, you get nothing - but basically the difference below about 75-80% max lift, the difference is so small you would never notice.

I'll have to post the lift curve VS eccentric shaft position for a MILV tune to illustrate that point. But at lower lift values I don't change anything.

Just curious.

Where does all the additional TQ comes from after the MILVS change?

hassmaschine · 06-13-2018, 10:48 PM

More valve lift?

atmosphericM · 06-14-2018, 02:10 PM

More air (MILVS) + More fuel (updated tune) = bigger boom.

Elias_E90 · 06-15-2018, 03:13 AM

Helpppp i installed milv 1 succesfully, went to the 5th and it wont enter, removed the old one. Now the spacer is slipping out from under the spring what can i do ?

Elias_E90 · 06-15-2018, 04:06 AM

The spacer is out now, ill try to pry the spring and re enter the spacer.. if this doesnt work ill have to remove the spring.. the problem is i have no tool for removing spring + im in middle east so it ll take alot of time for the tool to arrive

Elias_E90 · 06-15-2018, 05:42 AM

Solved a friend helped me, pried tge spring and reisntalled the washer

W37V · 06-15-2018, 11:01 AM

Quote:

Originally Posted by hassmaschine

More valve lift?

What I meant, which I didn't state, was that I feel the difference regardless of throttle position. If the milvs work only 80% throttle, then there must be something with my throttle pedal.

hassmaschine · 06-15-2018, 11:26 AM

Throttle position isnt the same thing as valve lift - also, presumably you got a tune too, so its going to make more torque everywhere.

06-03-2018, 09:32 PM	#728
kc2mrg Registered 2 Rep 2 Posts Drives: 2011 328xi Wagon Join Date: Jan 2016 Location: Poca, WV iTrader: (0)	Ok will do sir! May take me a couple months but I plan to get a base dyno run anyways on it. Plans are 3IM, CAI, MILV, tune (may even trailer it down for a custom tune) headers (idk if I want catted or catless yet) and still keeping my secondary delete pipes and performance exhaust .. and whatever else I can find to get a bit extra umph out of my N52 lol But when I get some of my credit cards paid down or at least one paid off then I can start spending money on my baby again
	Appreciate 1 Noir883.00

06-04-2018, 08:03 AM	#729
CobraMarty Major 619 Rep 1,402 Posts Drives: 2007 328xi e90 + e92 Join Date: Sep 2010 Location: BimmerMILVs.com iTrader: (7)	For a CAI, I've used- -stock with carbon delete, silicone elbow and aFe filter panel -EURO with silicone hose -aFe Magnum FORCE Stage-2 PRO 5R Cold Air Intake. I highly recommend the aFe. Don't need the silicone elbow with the aFe.
	Appreciate 1 Noir883.00

06-04-2018, 08:11 AM	#730
6ixSpd Save the manuals! 6016 Rep 6,747 Posts Drives: '16 M3, '23 718 Spyder Join Date: Feb 2016 Location: 416 iTrader: (4)	+1 for AFE stage 2. Sounds awesome and the sealed box helps unlike most other options. __________________ '16 M3 \| '23 718 Spyder Past: E92 M3, F87 M2, E39 M5, etc
	Appreciate 1 Noir883.00

06-04-2018, 08:50 AM	#732
Biginboca Colonel 3764 Rep 2,738 Posts Drives: 2009 E92 328i 6MT Join Date: Jun 2017 Location: Boynton Beach, FL... USA iTrader: (3)	I’m also a fan of the AFE but I wish they included a better secondary intake tract, not just openings on the front of the box. If they had included some kind of short snorkel that led to the gap over the headlight (and replaced the rubber seal that fills the gap there) it could have been just about perfect.
	Appreciate 0

06-04-2018, 08:58 AM	#733
Taskmaster Banned 2465 Rep 9,004 Posts Drives: M235i 6MT / E92 328 Msport 6MT Join Date: Nov 2013 Location: Florida iTrader: (6)	AFE's filter is larger, and the intake tract from the filter to the throttle body is larger (but necks down the the proper diameter to match the TB opening)
	Appreciate 0

06-13-2018, 06:49 AM	#737
arhoads335i Captain 180 Rep 772 Posts Drives: 2015 435i grand coupe xdrive Join Date: Jan 2017 Location: Philadelphia, PA iTrader: (3) Garage List 2008 BMW 128I [0.00]	Question, do MILVs help at partial throttle, or they more for WOT conditions? __________________ 2015 435i grand coupe xdrvie (current) 2006 F250 powerstoke CCSB (current) 2014 M235i Black on Red (SOLD) / 08 e90 335i MT Pure Stage 2 High flow (SOLD) 08 128i 6MT (SOLD) / 08 335i 6MT Pure stage 1 (SOLD)
	Appreciate 0

06-13-2018, 08:40 AM	#739
CobraMarty Major 619 Rep 1,402 Posts Drives: 2007 328xi e90 + e92 Join Date: Sep 2010 Location: BimmerMILVs.com iTrader: (7)	MILVs only increase intake valve lift after 80% Eccentric Cam position, which is about 80% throttle. Probably should try and watch ECC position during real time driving. It might go beyond 80% position sooner and more often than I think. IDK if my scan tool will show ECC position.
	Appreciate 0

06-13-2018, 07:51 PM	#740
hassmaschine Major General 3973 Rep 7,215 Posts Drives: "NBO" 330i Join Date: Jun 2014 Location: earth iTrader: (0)	I should point out its not a "hard" value where over X% throttle, you get extra lift and under that threshold, you get nothing - but basically the difference below about 75-80% max lift, the difference is so small you would never notice. I'll have to post the lift curve VS eccentric shaft position for a MILV tune to illustrate that point. But at lower lift values I don't change anything.
	Appreciate 0

06-13-2018, 10:48 PM	#742
hassmaschine Major General 3973 Rep 7,215 Posts Drives: "NBO" 330i Join Date: Jun 2014 Location: earth iTrader: (0)	More valve lift?
	Appreciate 0

06-14-2018, 02:10 PM	#743
atmosphericM Basic Bimmer 518 Rep 935 Posts Drives: E92 328i 6MT ///M Join Date: Sep 2017 Location: B'ham iTrader: (1) Garage List 2013 BMW 328i Coupé ... [10.00]	More air (MILVS) + More fuel (updated tune) = bigger boom.
	Appreciate 0

06-15-2018, 03:13 AM	#744
Elias_E90 Private 25 Rep 94 Posts Drives: E90 328i Join Date: Apr 2018 Location: Lebanon iTrader: (0)	Helpppp i installed milv 1 succesfully, went to the 5th and it wont enter, removed the old one. Now the spacer is slipping out from under the spring what can i do ? __________________ E90 328i n52 auto, 3 stage IM, k&n drop in, charcoal delete, silicone boot, ebay headers, secondary cats delete, bpc tune. MILVs (soon), MT swap (planning)
	Appreciate 0

06-15-2018, 04:06 AM	#745
Elias_E90 Private 25 Rep 94 Posts Drives: E90 328i Join Date: Apr 2018 Location: Lebanon iTrader: (0)	The spacer is out now, ill try to pry the spring and re enter the spacer.. if this doesnt work ill have to remove the spring.. the problem is i have no tool for removing spring + im in middle east so it ll take alot of time for the tool to arrive __________________ E90 328i n52 auto, 3 stage IM, k&n drop in, charcoal delete, silicone boot, ebay headers, secondary cats delete, bpc tune. MILVs (soon), MT swap (planning)
	Appreciate 0

06-15-2018, 05:42 AM	#746
Elias_E90 Private 25 Rep 94 Posts Drives: E90 328i Join Date: Apr 2018 Location: Lebanon iTrader: (0)	Solved a friend helped me, pried tge spring and reisntalled the washer __________________ E90 328i n52 auto, 3 stage IM, k&n drop in, charcoal delete, silicone boot, ebay headers, secondary cats delete, bpc tune. MILVs (soon), MT swap (planning)
	Appreciate 0

06-15-2018, 11:26 AM	#748
hassmaschine Major General 3973 Rep 7,215 Posts Drives: "NBO" 330i Join Date: Jun 2014 Location: earth iTrader: (0)	Throttle position isnt the same thing as valve lift - also, presumably you got a tune too, so its going to make more torque everywhere.
	Appreciate 0