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Default 05-08-2017, 11:48 AM

Quote:
Originally Posted by lazer
Why my speed limitee still there with pump flash?
Yeah mine is still there too. I know MHD does remove it on our cars as I watched houtans car on the dyno running flash only via MHD pull past 155 and auto shift into 7th gear haha. Hopefully soon they get it all dialed in


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KevinC39 KevinC39 is offline
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Default 05-08-2017, 12:04 PM

Quote:
Originally Posted by Terry @ BMS
PS. This week I'm working on migrating over the latest N54 flex fuel developments including the BETA virtual flex fuel sensor, PI scaling on ethanol content, and various physical sensor input options.
Hmm, I'm interested to hear more about this. I don't follow the N54 side of things very much but it looks like it's time for me to go do some snooping around over there.

Edit: After reading up, it sounds pretty good to me. I've already got the ethanol sensor installed and ran to the jb4 so I'm ready to go.


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Last edited by KevinC39; 05-08-2017 at 12:47 PM..
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tho tho is offline
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Default 05-11-2017, 04:43 PM

Can I drive 5-10 miles with Ethanol content > 40 on the pump flash? I have to add E85 at my house and plan to drive about 5 miles to the gas station to fill up the rest of the tank. I'm currently running about E30 in my tank now and I want to add 7 Gal of E85. I can load the E85 flash if needed, but would rather not if I don't have to.

I just want to make sure that I don't stall out halfway there and then have to try to flash on the side of the road.

EDIT: I'm answering myself. Yes, it was no problem. I figured the chances of failure was low, so I risked it. Made it to the gas station A-OK.


2011 335i - JB4 ISO, MHD PUMP BEF, **, CP, 5" stepped FMIC, BMS Meth Injection CM10, BMS Intake, Pure Stage 2, Pure Inlet, Flex Fuel wires, Fuel It Stage 2, DV+, N20 TMAP, Ethanol mix

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orteeze orteeze is offline
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Default 05-16-2017, 07:43 AM

Quote:
Originally Posted by Terry @ BMS
PS. This week I'm working on migrating over the latest N54 flex fuel developments including the BETA virtual flex fuel sensor, PI scaling on ethanol content, and various physical sensor input options.
Any update? I asked this question before, will I still have to use an ethanol analyzer before connecting to my JB4 so the JB4 Mobile App Gauges reads out ethanol content?


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Default 05-16-2017, 08:07 AM

Quote:
Originally Posted by orteeze
Any update? I asked this question before, will I still have to use an ethanol analyzer before connecting to my JB4 so the JB4 Mobile App Gauges reads out ethanol content?
I have a version ready for testing. You need the latest windows interface or BETA JB4 Mobile interface.

With a virtual flex fuel sensor no hard wired ethanol sensor is required.


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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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orteeze orteeze is offline
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Default 05-16-2017, 08:21 AM

Quote:
Originally Posted by Terry @ BMS
I have a version ready for testing. You need the latest windows interface or BETA JB4 Mobile interface.

With a virtual flex fuel sensor no hard wired ethanol sensor is required.
If you need a beta tester let me know.


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Default 05-16-2017, 08:28 AM

Email me!


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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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KevinC39 KevinC39 is offline
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Default 05-16-2017, 09:15 AM

I can help as well if needed. Just need to figure out where to get the beta app. I also already have the sensor and jb4 analyzer so it might be interesting to see how close they match up.


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Benise Benise is offline
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Default 05-16-2017, 05:27 PM

Virtual flex fuel sensor? Is that a way of using the JB4 to calculate ethanol content?
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Default 05-16-2017, 05:32 PM

That's exactly it. Should give your ethanol content without the physical sensor like I have.


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Benise Benise is offline
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Default 05-16-2017, 06:14 PM

So how do you get in on helping test that? Also does that mean the JB4 would be able to make adjustments due to ethanol content? Or simply just be able to give you an ethanol content reading?
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Default 05-17-2017, 01:01 PM

Quote:
Originally Posted by Terry @ BMS
Email me!
Quote:
Originally Posted by KevinC39
I can help as well if needed. Just need to figure out where to get the beta app. I also already have the sensor and jb4 analyzer so it might be interesting to see how close they match up.
Email Terry for information on Beta testing

Quote:
Originally Posted by Benise
So how do you get in on helping test that? Also does that mean the JB4 would be able to make adjustments due to ethanol content? Or simply just be able to give you an ethanol content reading?
Here is the thread if you want to following along with the N54 development.

http://www.n54tech.com/forums/showthread.php?t=46407


2011 E92 335i Auto 12.0 @ 125MPH
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Default 05-17-2017, 01:45 PM

Quote:
Originally Posted by orteeze
If you need a beta tester let me know.
I'm down to test it I you need more people


<-- Click on pic for the build thread 1m bodywork,helixIC,ONE EIGHTY head lights, JB4,Seibon GTR hood , i carbon trunk,meth, BMS intake,black lines,CKS coil overs, Sparta Evolution 2 piece rotors , PURE Stage 2 Turbo, BBS FIR's coming
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Diox Diox is offline
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Default 05-18-2017, 05:09 AM

Hey, I am about to install my pure stage 2 on my e90

Which BEF should I be using? Still pump? I plan on mixing up to E30/35

I don't have a fuel it stage 2 yet, no PI or meth planned
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Default 05-18-2017, 06:52 AM

Quote:
Originally Posted by Diox
Hey, I am about to install my pure stage 2 on my e90

Which BEF should I be using? Still pump? I plan on mixing up to E30/35

I don't have a fuel it stage 2 yet, no PI or meth planned
Yeah just run the pump BEF for now


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Default 05-18-2017, 08:12 AM

Quote:
Originally Posted by Diox
no PI or meth planned
Yeah pump flash then log. Running a completely stock fuel system with E and no other supplemental fueling you will hit the limit pretty quick.


2011 E92 335i Auto 12.0 @ 125MPH
Custom MHD Tune (in progress) | XHP Stage 3 | ER Chargepipe | VRSF 7in Intercooler | BMS Methanol | Performance Line ** | Pure Inlet | Pure Stage 2 | Go Fast Bits DV+ | Diff Lockdown Bracket |
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Default 05-18-2017, 08:20 AM

I did some testing recently since my misfires are gone. I decided to turn off my port meth injection and see just how much boost I could run on E40. To my surprise I still haven't found the limit, I've been running 19 psi to read line with no issues on the stock fuel system & PS2.... Then my water pump decided to take a **** ha ha but when I get my car back I will slowly keep turning it up until I find a limit. Just sharing my findings :-)


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Default 05-18-2017, 09:06 AM

Quote:
Originally Posted by Newguy123
I did some testing recently since my misfires are gone. I decided to turn off my port meth injection and see just how much boost I could run on E40. To my surprise I still haven't found the limit, I've been running 19 psi to read line with no issues on the stock fuel system & PS2.... Then my water pump decided to take a **** ha ha but when I get my car back I will slowly keep turning it up until I find a limit. Just sharing my findings :-)
Good to know. I know Ken hit the limit in his 135i at 17 psi targeting like 11.8 AFR. Since that is a little richer than most JB4 setups I would have assumed about 19psi to be the limit.

Running E30 and meth I have had a couple of crashes at 25psi around 5,000 RPM. Other than that I have found this to be the best setup when not running any kind of port or throttle body injection.


2011 E92 335i Auto 12.0 @ 125MPH
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Default 05-18-2017, 09:33 PM

Quote:
Originally Posted by Bimmer_Boost
Good to know. I know Ken hit the limit in his 135i at 17 psi targeting like 11.8 AFR. Since that is a little richer than most JB4 setups I would have assumed about 19psi to be the limit.

Running E30 and meth I have had a couple of crashes at 25psi around 5,000 RPM. Other than that I have found this to be the best setup when not running any kind of port or throttle body injection.
What is your Meth/water ratio? We have very similar setups, in fact I have several of your logs saved to use as a starting point once my setup got closer to yours.

When you say "crashes at 25psi" you mean timing crashes? Or fuel pump issues? Do you have examples of this? I'd like to get a better idea of what to look for. I'm currently trying to get a decent 21psi run, but my goal is to try and run 22-23 on a regular basis. I'm just not sure if it's possible with my mods.


2011 335i - JB4 ISO, MHD PUMP BEF, **, CP, 5" stepped FMIC, BMS Meth Injection CM10, BMS Intake, Pure Stage 2, Pure Inlet, Flex Fuel wires, Fuel It Stage 2, DV+, N20 TMAP, Ethanol mix
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Default 05-19-2017, 08:20 PM

Quote:
Originally Posted by Terry @ BMS
I have a version ready for testing. You need the latest windows interface or BETA JB4 Mobile interface.

With a virtual flex fuel sensor no hard wired ethanol sensor is required.
Not sure where to post this, but I flashed the 5.15 ISO N55 firmware today, with 2gal of ~e40 in the tank. Initial readings on the JB4 mobile app showed ~E40.
I then filled up with ~E45. Readings then showed ~E43-E45. After doing some map 5 and runs, The reading elevated to E50. I let the car sit for awhile and started it up and the reading was up to E65. After driving some more and some map 7 runs, it now reads E60.

Is this normal behavior? I have the e85 BEF and have the default offset settings set.


2011 335i x-drive MSport: MHD E85_BEF + JB4 ISO 5.15 / Pure Stage 2 / Stage 2 LPFP (bucketless) / N20 TMAP / BMS Intake / ER CP / VRSF ** / VRSF 7" FMIC
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extreme-eg extreme-eg is offline
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Default 05-22-2017, 11:57 PM

Just to clarify, do the boost targets remain the same when running a BEF as they are on JB only ?

Map 1 - 12.5 psi
Map 2 - 14 psi
Map 6 - 16 psi

I've loaded the PUMP BEF via MHD and am seeing 19 psi peak on the Autotune map. Just trying to figure out if the boost targets are different when running in 4/2 BEF mode.
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Default 05-23-2017, 08:50 AM

Quote:
Originally Posted by extreme-eg
Just to clarify, do the boost targets remain the same when running a BEF as they are on JB only ?

Map 1 - 12.5 psi
Map 2 - 14 psi
Map 6 - 16 psi

I've loaded the PUMP BEF via MHD and am seeing 19 psi peak on the Autotune map. Just trying to figure out if the boost targets are different when running in 4/2 BEF mode.
The BEF increases boost targets. Map 6 is ALWAYS user defined so if you're hitting 16 psi it's because you set it to 16 psi. I believe map 1 is 15 psi.


2011 E92 335i Auto 12.0 @ 125MPH
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Default 05-23-2017, 09:31 AM

Quote:
Originally Posted by fisc0h
Not sure where to post this, but I flashed the 5.15 ISO N55 firmware today, with 2gal of ~e40 in the tank. Initial readings on the JB4 mobile app showed ~E40.
I then filled up with ~E45. Readings then showed ~E43-E45. After doing some map 5 and runs, The reading elevated to E50. I let the car sit for awhile and started it up and the reading was up to E65. After driving some more and some map 7 runs, it now reads E60.

Is this normal behavior? I have the e85 BEF and have the default offset settings set.
It's under development for the N55 so right now we're just collecting data. Will be useful to see the range and how it moves. At some point when finalized the calculation will run for a set amount of time and "lock", resetting itself one when gas is added to the tank.


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Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

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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Krzysztof032 Krzysztof032 is offline
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Default 05-23-2017, 11:10 AM

Currently have a Cobb, planning on switching over to JB4 but just to verify. Are the JB4 Flex Fuel wires required to run E30? I see threads saying yes, however first page says otherwise.

Terry's first page mentions "In addition the JB4 auto-tuning map can self tune for various ethanol mixtures without the need of an expensive and difficult to install flex fuel sensor"

Appreciate it!
-Kris
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Default 05-23-2017, 11:11 AM

Yes, and all new JB4 harnesses include the FF wires.


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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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