N54Tech.com - International Turbo Racing Discussion
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alexis485 alexis485 is offline
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Default 08-25-2018, 12:58 PM

Quote:
Originally Posted by Payam @ BMS
That's looking really good!
Quote:
Originally Posted by Matticus91
Wow this looks amazing!
Thanks guys!

Quote:
Originally Posted by Bours
UPDATE ??
The car is up and running. The shop have been testing and so far its all good. Anyhow, Iíve been extremely busy at work and I havenít find time to go to the shop. Hopefully, Iíll be there by the end of this week.


2011 E92 ABR N55 Built Motor | ABR Built 6AT | Big Boost 3.4 Turbo Kit | JB4 + MHD | xPH Stg3 Flash | Fuel-It Stg 3 LPFP | Fuel-it PI Kit | COBB Exhaust | E85 |
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(#52)
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Bours Bours is offline
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Default 09-27-2018, 10:37 PM

Quote:
Originally Posted by alexis485
Thanks guys!



The car is up and running. The shop have been testing and so far its all good. Anyhow, Iíve been extremely busy at work and I havenít find time to go to the shop. Hopefully, Iíll be there by the end of this week.
UPDATE ??


335i x-drive 2011 e90 n55

ER chargepipe | performance line d.p | 90/10 bms meth kit | K&N drop in | JB4 + MHD pump flash | xhp stage 3 flash | PURE STAGE 2 turbo
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(#53)
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alexis485 alexis485 is offline
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Default 10-01-2018, 08:02 AM

Quote:
Originally Posted by Bours
UPDATE ??
Finally, I got the car this past Friday. The shop put about 100 mile on it so, it still going thru the break in period. I already put over 100 miles more during the weekend. The car feels awesome for been at 8-10psi and extremely low timing

I will gradually turn up the boost once the break in period is done.

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2011 E92 ABR N55 Built Motor | ABR Built 6AT | Big Boost 3.4 Turbo Kit | JB4 + MHD | xPH Stg3 Flash | Fuel-It Stg 3 LPFP | Fuel-it PI Kit | COBB Exhaust | E85 |
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luchocamp luchocamp is offline
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Default 10-03-2018, 03:30 AM

time to change oil and turn up boost mate



13 BMW 335ix Full Weight 10.64 @129mph N55 WR SOLD
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Martin.328 Martin.328 is offline
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Default 10-10-2018, 09:13 AM

post some videos!!
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JacquesN55 JacquesN55 is offline
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Car: 2011 N55 135DCT
Default 10-14-2018, 10:08 PM

Hi Could you maybe share your BEF please. Would like to see the file.


2011 135 n55 DCT RHD, MAMBA GTX3576R (5962) single turbo kit. Jb4 FBO. METH KIT WITH cm7 and cm4
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alexis485 alexis485 is offline
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Default 10-15-2018, 06:14 AM

Quote:
Originally Posted by luchocamp
time to change oil and turn up boost mate
I wish it was that simple. The car is overboosting all the time. I'm working on a solution as we speak.

Quote:
Originally Posted by Martin.328
post some videos!!
I'll post it when the overboost issue get resolve.

Quote:
Originally Posted by JacquesN55
Hi Could you maybe share your BEF please. Would like to see the file.
I'm paying a tuner. BMS BEF didn't work on my car. I have Stg 3 heads so, the engine requires more fuel to stay happy even at cruising speeds.


2011 E92 ABR N55 Built Motor | ABR Built 6AT | Big Boost 3.4 Turbo Kit | JB4 + MHD | xPH Stg3 Flash | Fuel-It Stg 3 LPFP | Fuel-it PI Kit | COBB Exhaust | E85 |

Last edited by alexis485; 10-15-2018 at 07:06 AM..
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JacquesN55 JacquesN55 is offline
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Default 10-15-2018, 08:03 AM

No problem buddy


2011 135 n55 DCT RHD, MAMBA GTX3576R (5962) single turbo kit. Jb4 FBO. METH KIT WITH cm7 and cm4
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jturboawd jturboawd is offline
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Default 10-15-2018, 09:13 AM

@Alex: What type of issue did you have when you ran the BMS BEF? Can you elaborate what changes you are making to make partial load run better? I am really curious on this. It seems to be in alignment with the new MILV trend that people are trying to tune in, except you are flowing more in ALL conditions. I assume youre making some of the same changes that the N54 community have had to go through.

To me this is the same as the MILV tuning challenges.

I wonder if you could limit the issues but dialing back the intake eccentric cam? Take the bin and reduce the eccentric cam position unless WOT. Then just tune the WOT or 80-100% WOT. You'll have to drastically change the VANOS settings as well.


2012 N55 135I, Speedtech 7670, JB4 + MHD, Fuel-it port injection & stage 3 LPFP, M4 A2W IC, Mfactory LSD, KW V1, Apex EC-7, Most importantly CF Roof!
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alexis485 alexis485 is offline
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Default 10-17-2018, 06:41 AM

Quote:
Originally Posted by jturboawd
@Alex: What type of issue did you have when you ran the BMS BEF? Can you elaborate what changes you are making to make partial load run better? I am really curious on this. It seems to be in alignment with the new MILV trend that people are trying to tune in, except you are flowing more in ALL conditions. I assume youre making some of the same changes that the N54 community have had to go through.

To me this is the same as the MILV tuning challenges.

I wonder if you could limit the issues but dialing back the intake eccentric cam? Take the bin and reduce the eccentric cam position unless WOT. Then just tune the WOT or 80-100% WOT. You'll have to drastically change the VANOS settings as well.
Hey J,

There was a lots of fuel cut and hesitation during normal driving anywhere above 2800 rpm on any gear. I didnít bother on fixing it myself. There are too many variables that change. So, I decide to get a tuner. So far he increased the fuel pressure and AFRís across the board thru several revisions until the car is finally happy. Well, I still feel minor hesitation but at higher rpm now. The tune still need some work to make smoother but this is just the beginning. All I can say is this stg 3 heads are flowing more for sure. Just for comparison, the highway MPG decreased drastically (13 mpg now) compare to the stock motor (21 mpg on PS2) on straight E85. At the same time, the car feels way faster at lower boost and only 3 degrees of timing compared to PS2 at mid boost and higher timing. Anyhow, he hasnít touched any other tables yet because Iím trying to figure out the overboost problem. I will start playing with those tables later on.

My case is like you said it just more air in all conditions so, adding more fuel alleviated that issue. Now, MILV might bring some other calibration challenges because it changes the valvetronic lift (%travel) in some areas thru the RPM.


2011 E92 ABR N55 Built Motor | ABR Built 6AT | Big Boost 3.4 Turbo Kit | JB4 + MHD | xPH Stg3 Flash | Fuel-It Stg 3 LPFP | Fuel-it PI Kit | COBB Exhaust | E85 |
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jturboawd jturboawd is offline
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Default 10-17-2018, 07:15 AM

@ Alex: Thats what I am saying about MILV, you could basically be stock until X based on valve lift table. Why not just change the valve lift table? SO reduce lift during low load conditions until she is happy. Use the lift as the needed restriction. You dont need the mixing conditions typical for PI since its DI, you just need to reduce the flow. If you are with a pro then I am sure they are more competent then me, just wondering if it was considered. My ride is my DD so I want stock until WOT, seems like high flow heads could act like stock under low load with lower lift. You still have the tuning challenge for high load conditions, but you can have stockish performance around town.

Thoughts? Thanks again for sharing this build. Im sure mine will pop so Ill be building at some point.


2012 N55 135I, Speedtech 7670, JB4 + MHD, Fuel-it port injection & stage 3 LPFP, M4 A2W IC, Mfactory LSD, KW V1, Apex EC-7, Most importantly CF Roof!
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alexis485 alexis485 is offline
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Default 10-17-2018, 08:24 AM

Quote:
Originally Posted by jturboawd
@ Alex: Thats what I am saying about MILV, you could basically be stock until X based on valve lift table. Why not just change the valve lift table? SO reduce lift during low load conditions until she is happy. Use the lift as the needed restriction. You dont need the mixing conditions typical for PI since its DI, you just need to reduce the flow. If you are with a pro then I am sure they are more competent then me, just wondering if it was considered. My ride is my DD so I want stock until WOT, seems like high flow heads could act like stock under low load with lower lift. You still have the tuning challenge for high load conditions, but you can have stockish performance around town.

Thoughts? Thanks again for sharing this build. Im sure mine will pop so Ill be building at some point.
I forgot to mention. I couldn't reduced the lift at low load conditions because I have custom catch can connected to the intake manifold and that it will not help with the car getting off the line because I have higher stall converter. Anyway, N55's barely made any vacuum at idle so, the car was smoking at stops because it was always in VTA. The solution was to increase the lift at idle to .8mm to create vacuum and recirculate back into the intake. That's one of many variable that change in my car.

One more thing, I have a higher stall converter in the transmission. Actually, it change the drivability at least only in 1st gear because the converter is not sending all the power through it, until the stall speed is reached. So, I'm pretty sure reducing the lift will not help with regular driving. Anyhow, It should be fun in the quarter mile.

Here is picture so you can have a better idea of the catch can. BTW, let see if can meet one of this days.

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2011 E92 ABR N55 Built Motor | ABR Built 6AT | Big Boost 3.4 Turbo Kit | JB4 + MHD | xPH Stg3 Flash | Fuel-It Stg 3 LPFP | Fuel-it PI Kit | COBB Exhaust | E85 |
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