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Default 07-24-2016, 09:21 AM

Hello Terry,
I have one question for JB4,if I borrow the car to my friend,and I need decrease stock boost pressure,how can I set MAP6 for get it?
Regards
Gray
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Default 07-24-2016, 11:11 AM

Quote:
Originally Posted by ei-power
Hello Terry,
I have one question for JB4,if I borrow the car to my friend,and I need decrease stock boost pressure,how can I set MAP6 for get it?
Regards
Gray
Just put it in map 0 or 4 for stock boost levels.


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bimmerislife bimmerislife is offline
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Default 07-25-2016, 07:17 AM

Quote:
Originally Posted by ei-power
Hello Terry,
I have one question for JB4,if I borrow the car to my friend,and I need decrease stock boost pressure,how can I set MAP6 for get it?
Regards
Gray
lol let your friend have some fun ;p
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Default 07-26-2016, 12:13 PM

Hello Terry,

In my map1 log,what are ECU_PSI/Target/Boost?Boost is actual Boost?Target is JB4 Target Boost?ECU_PSI is ECU Target Boost?
Why Boost is 18PSI,ECU_PSI is 12.1PSI,Target is very low 8.5?I don't know those log means.I need help.
Now my M135I used N20 3.5TMAP sensor and used JB4 map1 for log:
rpm ecu_psi target boost pedal iat fuelen pwm throttle
2348 3.1 5.5 2 56 89 0 15 68
2373 4.1 5.5 3.7 77 89 0 15 100
2699 7.3 5.5 8.7 100 91 0 15 99
3218 12 6.7 17.2 100 91 0 18 99
3763 12.1 7.9 17.9 100 91 0 21 99
4626 11 8.5 16.9 89 91 0 23 100
4723 11 8.5 16.3 84 91 0 23 100
4894 10.7 8.5 16.2 84 91 0 23 100
5077 11.1 8.4 15.9 85 93 0 23 100
5185 9.6 8.2 14.9 88 96 0 22 100
5467 12.3 7.8 16.6 87 96 0 21 100
5532 8.6 7.7 13.3 90 98 0 21 41
5832 7.9 7.2 12.1 90 100 0 19 90
5934 7.9 7.1 11.6 90 102 0 19 100
6076 8.3 6.8 11.4 90 102 0 18 100
5054 10.7 8.5 14.8 95 104 0 18 100
5142 10.9 8.4 15.6 95 107 0 23 100
5224 10.3 8.2 15.2 99 109 0 22 100
5290 18.2 0 15.6 99 111 0 0 100

Look forward your reply

Thanks

Regards

Gray
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keyap keyap is offline
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Default 07-26-2016, 12:50 PM

Have a look here:-

http://www.n54tech.com/forums/showthread.php?t=21269


UK 2011 - E82- 135i - N55 - DCT

JB4 | BMS OCC | N20 TMap | Fuel-It! PI | AIC6 PI Controller | Fuel-It! Fuel Lines | Fuel-It! Stage 2 LPFP | Continental In-line E Sensor | ER Charge Pipe | Pure Stage 2 Turbo | Pure High Flow Inlet | GFB DV+ | Richter C'less D/Pipe | Berk Race Full Exhaust | MFactory Pro Helical LSD (75% Bias Ratio) | eDiff Disabled Via Coding | MFactory Solid Diff Bushes | Diff Lockdown Bracket | Custom 98G0B BEF | NGK 5992s | KW3 Coilovers
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Default 07-27-2016, 12:20 AM

Strange Problem at ~25psi

Wasn't sure whether to post this here or start a new thread - it's sort of large turbo tuning related so hopefully all is good.

I'm having problems with one of the air intake ***** which, irrespective of how hard clamped will not hold in place. All is good on map 7, so ~20psi, but when I go to ~25psi it will eventually work its way off.

I've highlighted the joint in question below and, as I'm on the stock air intake, I have my suspicion that, at 25psi, there's insufficient flow through the OEM airbox resulting in high negative pressure.

I'm thinking it's time for a 'performance intake'. Any thoughts?


Name:  1.jpg
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UK 2011 - E82- 135i - N55 - DCT

JB4 | BMS OCC | N20 TMap | Fuel-It! PI | AIC6 PI Controller | Fuel-It! Fuel Lines | Fuel-It! Stage 2 LPFP | Continental In-line E Sensor | ER Charge Pipe | Pure Stage 2 Turbo | Pure High Flow Inlet | GFB DV+ | Richter C'less D/Pipe | Berk Race Full Exhaust | MFactory Pro Helical LSD (75% Bias Ratio) | eDiff Disabled Via Coding | MFactory Solid Diff Bushes | Diff Lockdown Bracket | Custom 98G0B BEF | NGK 5992s | KW3 Coilovers

Last edited by keyap; 07-27-2016 at 09:51 AM..
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JamCan335i JamCan335i is offline
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Default 07-28-2016, 09:44 PM

2011 N55
FBO-jb4
PS2??

If not using meth nor ethanol mixes, is the flex fuel connector and the 3.5 TMAP sensor required to tune a pure stage 2 turbo? I have access to 94 octane at best—Will map 5 work with the pure stage 2 without the flex fuel connector, 3.5 TMAP sensor? Are the two aforementioned parts required only when looking to push over 21 psi WITH a backend flash?

What is the benefit of a backend flash apart from the DCT's load adjustments? According to another thread map 5 at say 16psi with stage 2's will put down more power than stock turbos at 16 psi—everything else equal?
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Default 07-28-2016, 10:09 PM

Yes, FF connector is required for any larger turbo setup. No need for 3.5bar on pump gas though. You won't be able to run much more than 17-18psi anyway.


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JamCan335i JamCan335i is offline
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Default 07-29-2016, 09:44 AM

Quote:
Originally Posted by Terry @ BMS
Yes, FF connector is required for any larger turbo setup. No need for 3.5bar on pump gas though. You won't be able to run much more than 17-18psi anyway.
I appreciate the timely response. I'm limited to 17-18 psi due to octane restrictions? In this case I could just use map 5 with the flex fuel wire and forego the backend flash and 3.5bar? If I add meth to the equation, what is the benefit of the backend flash—to control timing and fueling?

My main concern was driving the car away after the stage 2 install with only my jb4. If Jb4 and the flex fuel wire are all that's needed for PUMP, then I should be fine for now.


2011 BMW 135i

Last edited by JamCan335i; 07-29-2016 at 10:20 AM.. Reason: Typo*
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Default 07-29-2016, 09:57 AM

Quote:
Originally Posted by JamCan335i
In this case I could just use map 5 with the flex fuel wire and forego the backend flash and 3.5bar?

Without the 3.5 bar or using map 6 you are stuck with the OEM turbo boost target taper. You will need to log and see what adjustments should be made. BEF can change load, throttle, AFR, timing, ect.

If I add meth to the equation, what is the benefit of the backend flash—to control timing and feeling?

My main concern was driving the car away after the stage 2 install with only my jb4. If Jb4 and the flex fuel wire are all that's needed for PUMP, then I should be fine for now.
Answered


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12.0 @ 125MPH JB4
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2014 E84 X1 35i 12.75 @ 107MPH / 0-60 4.55 / 293 AWHP 305 AWTQ When stock
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Default 07-29-2016, 11:21 AM

Quote:
Originally Posted by Bimmer_Boost
Answered
Your setup seems to be similar to what I'm going for. You have the flex fuel connector and you are also running the PUMP backend flash? So are there any benefits associated with a backend flash versus a custom map 6?


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Default 07-29-2016, 12:14 PM

Quote:
Originally Posted by JamCan335i
Your setup seems to be similar to what I'm going for. You have the flex fuel connector and you are also running the PUMP backend flash? So are there any benefits associated with a backend flash versus a custom map 6?
The FF wires allow you to monitor your HPFP and make adjustments to your FOL to keep your trims in range. On pump gas my trims were pretty high and I needed to up my FOL to 90. I decided to flash the car to bring my AFR into a comfortable range and I plan to start adding some E85. The boost targets are controlled by the JB4 and since I do not have the 3.5 bar I use map 6 to keep the boost from tapering at higher RPMs. Currently I have my boost start at 14 psi and climb to 19 for my daily setup.


2011 E92 335i Auto Sold
12.0 @ 125MPH JB4
11.7 @ 120MPH E30 MHD / 0-60 3.66

2014 E84 X1 35i 12.75 @ 107MPH / 0-60 4.55 / 293 AWHP 305 AWTQ When stock
VRSF Chargepipe | BMS Intake | Custom MHD | VRSF 7" Intercooler | ER Turbo Outlet | XHP Stage 2 | AEM Meth Injection | Pure Stage 2 V3 | Pure Inlet | GFB DV+ | AR DP |
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Default 07-29-2016, 01:42 PM

Quote:
Originally Posted by Bimmer_Boost
The FF wires allow you to monitor your HPFP and make adjustments to your FOL to keep your trims in range. On pump gas my trims were pretty high and I needed to up my FOL to 90. I decided to flash the car to bring my AFR into a comfortable range and I plan to start adding some E85. The boost targets are controlled by the JB4 and since I do not have the 3.5 bar I use map 6 to keep the boost from tapering at higher RPMs. Currently I have my boost start at 14 psi and climb to 19 for my daily setup.
Okay things are making a little more sense to me now; It wasn't clear if I could finish the season with just my jb4 and flex fuel connector. I will hopefully do the backend flash with the 3.5bar and meth next season as I understand there is still gains to be had with the stage 2 turbo running map 6, versus stock turbo and the same boost taper—correct me if I'm wrong.


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Default 07-29-2016, 02:02 PM

It sounds like you have not done quite enough research. Yes you will make more power with the stage 2 turbo even at the same boost levels. You should install the FF wires this season and should be fine only running the JB4 for the rest of this year. Some people only run the JB4. Log once the install is finished to make sure everything looks ok. I have to do some duty bias tuning to keep my boost on target.

Great turbo though. You'll love it.


2011 E92 335i Auto Sold
12.0 @ 125MPH JB4
11.7 @ 120MPH E30 MHD / 0-60 3.66

2014 E84 X1 35i 12.75 @ 107MPH / 0-60 4.55 / 293 AWHP 305 AWTQ When stock
VRSF Chargepipe | BMS Intake | Custom MHD | VRSF 7" Intercooler | ER Turbo Outlet | XHP Stage 2 | AEM Meth Injection | Pure Stage 2 V3 | Pure Inlet | GFB DV+ | AR DP |
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JamCan335i JamCan335i is offline
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Default 07-29-2016, 02:15 PM

Quote:
Originally Posted by Bimmer_Boost
It sounds like you have not done quite enough research. Yes you will make more power with the stage 2 turbo even at the same boost levels. You should install the FF wires this season and should be fine only running the JB4 for the rest of this year. Some people only run the JB4. Log once the install is finished to make sure everything looks ok. I have to do some duty bias tuning to keep my boost on target.

Great turbo though. You'll love it.
Yeah I'm coming from the N54 so this is a little new. I'm a willing researcher but there is not the most comprehensive information out and this is one of the only relevant threads I came across.

I really appreciate the help! I will install the flex fuel connector and hopefully have the turbo installed by next week. It's safe to run the flex fuel connector prior to installing the turbo? I won't be installing the turbo so if possible I'd like to drop the car off with the flex connected already set up.


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Default 07-29-2016, 02:30 PM

The reason they are called Flex Fuel wires is because it clips on to the fuel rail which allows you to see the HPFP and your trims. When mixing in E85 you will start running lean and will need to increase your FOL which is where the name comes from. You can not harm anything by adding another sensor's reading to the JB4. Make sure to adjust the FOL to 60 when you install the wires.

FF wire questions are not specific to this thread. PM me if you have additional questions so we do not clutter this thread.


2011 E92 335i Auto Sold
12.0 @ 125MPH JB4
11.7 @ 120MPH E30 MHD / 0-60 3.66

2014 E84 X1 35i 12.75 @ 107MPH / 0-60 4.55 / 293 AWHP 305 AWTQ When stock
VRSF Chargepipe | BMS Intake | Custom MHD | VRSF 7" Intercooler | ER Turbo Outlet | XHP Stage 2 | AEM Meth Injection | Pure Stage 2 V3 | Pure Inlet | GFB DV+ | AR DP |
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JamCan335i JamCan335i is offline
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Default 08-03-2016, 07:59 PM

Anyone know if DME tag: MEVD17KW is Cobb flashable?


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Default Cobb 98G1B - 08-30-2016, 09:43 PM

Terry,

Are there plans for a large turbo BEF (specifcally the e85 one) for 98G1B since Cobb has released it, today?
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Stoolz Stoolz is offline
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Default 08-31-2016, 03:33 AM

Quote:
Originally Posted by keyap
Strange Problem at ~25psi

Wasn't sure whether to post this here or start a new thread - it's sort of large turbo tuning related so hopefully all is good.

I'm having problems with one of the air intake ***** which, irrespective of how hard clamped will not hold in place. All is good on map 7, so ~20psi, but when I go to ~25psi it will eventually work its way off.

I've highlighted the joint in question below and, as I'm on the stock air intake, I have my suspicion that, at 25psi, there's insufficient flow through the OEM airbox resulting in high negative pressure.

I'm thinking it's time for a 'performance intake'. Any thoughts?


Attachment 52136
Ive had the same the same leak many times as well.
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Default Installing Pure Stage 2, question regarding wastegate position - 09-03-2016, 07:54 PM

Hey guys,

I'm installing my Pure Stage 2 on my N55 F30 PWG and I had a question about the waste gate position. See attached image file for comparison.

In summary I removed the stock waste gate shaft and did not move the default position of the nut on the shaft. When mocking up the shaft to the Pure Stage 2 I noticed that the waste gate is opened about 20% of the way if I install the waste gate shaft exactly how I had it on my stock turbo. My question is.. do I adjust the waste gate nut so the waste gate is in the fully closed position or do I leave it where it is?

I wasn't sure if vacuum would close the waste gate or not. I assume that is the case if the position should be left slightly open.
Attached Images
 




2013 335i F30 N55 PWG | JB4 + MHD BEF + xHP Stg3 | Pure Stage 2 + FBO | BMS PI controller + Meth | Fuel-It! Stg2 LPFP
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Default 09-05-2016, 10:08 PM

Quote:
Originally Posted by suchtragedy
Hey guys,

I'm installing my Pure Stage 2 on my N55 F30 PWG and I had a question about the waste gate position. See attached image file for comparison.

In summary I removed the stock waste gate shaft and did not move the default position of the nut on the shaft. When mocking up the shaft to the Pure Stage 2 I noticed that the waste gate is opened about 20% of the way if I install the waste gate shaft exactly how I had it on my stock turbo. My question is.. do I adjust the waste gate nut so the waste gate is in the fully closed position or do I leave it where it is?

I wasn't sure if vacuum would close the waste gate or not. I assume that is the case if the position should be left slightly open.
I looked back at some of my install photos and I noticed that my stock turbo was open slightly when the car is off.

*Edit*
Cannot seem to get the photo to work.
Attached Images
 


2011 E92 335i Auto Sold
12.0 @ 125MPH JB4
11.7 @ 120MPH E30 MHD / 0-60 3.66

2014 E84 X1 35i 12.75 @ 107MPH / 0-60 4.55 / 293 AWHP 305 AWTQ When stock
VRSF Chargepipe | BMS Intake | Custom MHD | VRSF 7" Intercooler | ER Turbo Outlet | XHP Stage 2 | AEM Meth Injection | Pure Stage 2 V3 | Pure Inlet | GFB DV+ | AR DP |

Last edited by Bimmer_Boost; 09-05-2016 at 10:13 PM..
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Default 09-07-2016, 02:39 PM

Quote:
Originally Posted by Bimmer_Boost
I looked back at some of my install photos and I noticed that my stock turbo was open slightly when the car is off.
Thanks for confirmation. I emailed Pure and they said that it being slightly open is normal so all is good




2013 335i F30 N55 PWG | JB4 + MHD BEF + xHP Stg3 | Pure Stage 2 + FBO | BMS PI controller + Meth | Fuel-It! Stg2 LPFP
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sd306 sd306 is offline
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Default 09-21-2016, 05:24 PM

Quote:
Originally Posted by sd306
Terry,

Are there plans for a large turbo BEF (specifcally the e85 one) for 98G1B since Cobb has released it, today?
@Terry ^

Someone stated we can copy the tables over to a new map made for 981GB, I would assume you need access tuner to do this.
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Default 09-21-2016, 05:46 PM

We no longer support Cobb so won't be doing any updates with it. But, MHD should be out soon, and we'll post the maps in the MHD format as soon as we can.


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Home of the JB4 the worlds most popular turbocharged tuning system!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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Jiminus Jiminus is offline
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Default What Backend Flash to use - 09-22-2016, 01:07 PM

I have a 2012 135I DCT with BMS intake, Stett intercooler, JB4 ISO,Methanol injection, VRSF down pipe, Berk mid ***** and race back exhaust, VRSF charge pipe and E85 blend. I just purchased the new COBB accessport for the 2012 N55 and would like to load a back end flash. Can someone direct me to the correct file to load and also how to do this so it is in sync with the JB$?
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