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      06-30-2013, 04:42 PM   #199
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I need make some corrections. I figured out the big gain of rear wheel "spin" from stage 1 to stage 2 was mainly due to my rear tire change, which happened with stage 2 upgrade. So now I have to say the excitement gain between stage1 and 2 is not as much as stock and stage 1, even though I certainly felt the power/torque gain. To numerically verify the performance gain(i.e. 0-60), first I need to burn off these poor traction tires i got.
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      07-01-2013, 07:59 AM   #200
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Update: I figured out why my FlexFuel install wasn't working at first, seems as though you need to make sure you fully twist and cap the spliced wires from the JB4/Stg2 wiring loom.

I'm running Map 2 with my mods (Magnaflow catback, AFE intake) and a 40/60 mix of E85 and 93 octane fuel. The N20 engine is a monster now; completely different beast than it was running the same mods with Stage 1 and 93 octane. I'm going to move up to a 50/50 mix of E85 and see what Map 7 brings. My hat goes off to Terry and the rest at BMS, I'm more than impressed with Stage2.
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      07-02-2013, 05:10 PM   #201
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Quote:
Originally Posted by stormtrooper328i View Post
Update: I figured out why my FlexFuel install wasn't working at first, seems as though you need to make sure you fully twist and cap the spliced wires from the JB4/Stg2 wiring loom.

I'm running Map 2 with my mods (Magnaflow catback, AFE intake) and a 40/60 mix of E85 and 93 octane fuel. The N20 engine is a monster now; completely different beast than it was running the same mods with Stage 1 and 93 octane. I'm going to move up to a 50/50 mix of E85 and see what Map 7 brings. My hat goes off to Terry and the rest at BMS, I'm more than impressed with Stage2.
Can you explain what the difference is between Map 1-7(+?) I flipped through Map 0-1 and saw a difference in boost but when I switched to Map 2 it appeared to be the same as Map 1. Am I missing something?
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      07-04-2013, 07:44 PM   #202
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I'm running BMS stage 2 on my n20, can someone post some pictures of the various jb4 interface screens with the correct settings so I can check I have everything as per what it should be.
Thanks
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      07-05-2013, 08:17 AM   #203
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Quote:
Originally Posted by giggity317 View Post
Can you explain what the difference is between Map 1-7(+?) I flipped through Map 0-1 and saw a difference in boost but when I switched to Map 2 it appeared to be the same as Map 1. Am I missing something?
Here's BMS's guide to the different JB4 maps (from http://www.n54tech.com/forums/showthread.php?t=15536):

Quote:
Stage 2 BETA Map Guide

Map 0: Stock performance, JB4 off
Map 1: Peak boost 20psi, suitable for stock and mildly modified cars on pump gas
Map 2: Peak boost 21psi, suggested for those using a downpipe and 93 octane (USA) or higher fuels
Map 3: Progressive methanol mapping, coming soon
Map 4: Stock performance, JB4 on
Map 5: 320i/520i map. Peak boost 17psi.
Map 6: User definable map. Suggested for troubleshooting by professionals only.
Map 7: Race gas map. Peak boost 23psi. Requires straight race gas or an E85 mix of 50%. If using E85 you also need our FlexFuel connector installed.
Essentially, whether there is a difference in performance between each map you select is largely dependent on what fuel you're running. If you're using a lower octane fuel than the selected map calls for, you're not going to hit the boost targets that the particular map unlocks.
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      07-05-2013, 08:21 AM   #204
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Quote:
Originally Posted by AdrianB View Post
I'm running BMS stage 2 on my n20, can someone post some pictures of the various jb4 interface screens with the correct settings so I can check I have everything as per what it should be.
Thanks
That's really going to depend on the map and fuel combo you're running. I'll be happy to post some grabs of what I've got, but it'll only be helpful if you're running the FlexFuel wires in conjunction with Map7 and a 50/50 mix of E85 and 93 octane fuel. When I was running just 93 octane and Map1 or Map2, I had every interface setting on the default value.

Also, I just found out that there is an updated interface download from BMS as well. Haven't installed it yet but just FYI you can get the updated interface from this thread: http://www.n54tech.com/forums/showthread.php?t=17441 .
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      07-05-2013, 08:42 AM   #205
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Quote:
Originally Posted by stormtrooper328i View Post
Update: I figured out why my FlexFuel install wasn't working at first, seems as though you need to make sure you fully twist and cap the spliced wires from the JB4/Stg2 wiring loom.

I'm running Map 2 with my mods (Magnaflow catback, AFE intake) and a 40/60 mix of E85 and 93 octane fuel. The N20 engine is a monster now; completely different beast than it was running the same mods with Stage 1 and 93 octane. I'm going to move up to a 50/50 mix of E85 and see what Map 7 brings. My hat goes off to Terry and the rest at BMS, I'm more than impressed with Stage2.
Moved up to a 50/50 mix of E85 and 93 octane on Map7, and I can't hope to adequately describe the performance increase that resulted. I haven't run a dyno yet, but I am quite confident that when I do, the numbers with my current setup are going to eye-popping.

One thing that I worked through in moving up to 50/50 E85 and Map7 is that right after I made the switch, I encountered a fairly consistent 'misfire' issue on 3/4-WOT in which the engine would completely bog down, almost as if I hit a rev limiter. No CEL or codes would result and as soon as I let off and eased back into the throttle, the engine would return to operating without issue. I am running the FlexFuel wires and had set the openloopfuel setting to 60 in the JB4 interface.

However, after doing a bit of forum research I believe I discovered that we should also be setting the futureuseB setting to 2. After doing that and bumping the openloopfuel setting to 75 (remember to let the car adapt too), the misfire issue is completely resolved and the engine pulls and pulls and pulls.
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      07-07-2013, 06:07 AM   #206
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Quote:
Originally Posted by stormtrooper328i
Quote:
Originally Posted by AdrianB View Post
I'm running BMS stage 2 on my n20, can someone post some pictures of the various jb4 interface screens with the correct settings so I can check I have everything as per what it should be.
Thanks
That's really going to depend on the map and fuel combo you're running. I'll be happy to post some grabs of what I've got, but it'll only be helpful if you're running the FlexFuel wires in conjunction with Map7 and a 50/50 mix of E85 and 93 octane fuel. When I was running just 93 octane and Map1 or Map2, I had every interface setting on the default value.

Also, I just found out that there is an updated interface download from BMS as well. Haven't installed it yet but just FYI you can get the updated interface from this thread: http://www.n54tech.com/forums/showthread.php?t=17441 .
Thanks stormtrooper , I'm running map 1 with 98ron here in oz, I don't haven the flex fuel wires or easy access to e85. I can connect to the laptop without problem , switch maps through the steering wheel also. Is it necessary to save the default settings because when I do that without changing any of the values it tells me the interface board doesn't match , when I press ok it asks to restore default n20/26 settings which I did. I have also selected n20/26 in the drop down menu in settings. Is this correct?
Secondly is it normal for the car to be very rough on cold starts? I have found a couple of times it will start and then struggle and then turn off. When warm I don't have such a problem
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      08-07-2013, 07:12 PM   #207
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Guys I just Installed S2 on 528i F10 incase you were wondering if it's compatible because I contact John@bms but he said he didn't have any customer yet (guess I'm the first ) so I had to take the risk but you have to know you'll need longer wires for green and brown wires so you can tuck the module beside the brake booster.

Last edited by rustyminded; 08-09-2013 at 06:26 AM..
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      08-07-2013, 07:17 PM   #208
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Quote:
Originally Posted by rustyminded View Post
Guys I just Installed S2 on 528i F10 incase you were wondering if it's compatible because I contact John@bms but he said he didn't have any customer yet (guess I'm the first ) so I had to take the risk but you have to know you'll need longer wires for green and brown wires so you can tuck the module beside the brake booster. I'll upload pictures on request
So how is it man, how does it feel? Screw the wires
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      08-07-2013, 07:27 PM   #209
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All this talk about running E85 mixtures...why doesn't anyone run 100% E85? Can anyone speak to the downsides (re: issues with the fuel system, codes) of running straight E85 with a JB4 Stage 2? It would be more convenient that to worry about mixing every time.

If this has been discussed, spare me...I'm not going to comb through every single post in the thread.
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      08-07-2013, 07:39 PM   #210
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Quote:
Originally Posted by metrathon View Post
So how is it man, how does it feel? Screw the wires
of course there is a difference but not as I expected maybe the weight ?! or I installed it wrong but I got no errors, it makes it almost faster than 328i stock.
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      08-07-2013, 07:43 PM   #211
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Quote:
Originally Posted by rustyminded View Post
of course there is a difference but not as I expected maybe the weight ?! or I installed it wrong but I got no errors, it makes it almost faster than 328i stock.
After a lot of reading it seems like when the initial enthusiasm fades away, the gains are not really anything to boast about. I've never seen a before and after Dyno from your average owner (not a brand enthusiast), on average octane (91).
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      08-07-2013, 07:56 PM   #212
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Quote:
Originally Posted by metrathon View Post
After a lot of reading it seems like when the initial enthusiasm fades away, the gains are not really anything to boast about. I've never seen a before and after Dyno from your average owner (not a brand enthusiast), on average octane (91).
I live in Egypt, I use RON92, we don't have dyno here and besides I do this myself normally enthusiast here go to someone to install any bolts in the car lol I wish I can dyno my car to know how much hp under that hood.. even if there slight difference still I'm proud to take that risk.
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      08-17-2013, 09:22 AM   #213
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Quote:
Originally Posted by Mike@N54Tuning.com View Post
No ETA right now. No pricing info but I would imagine it would follow something similar to the N55 Stage2 upgrade path in terms of cost and hardware involved.

Mike
Would it make more power if E40 used with RON95, 98 etc. ?
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      08-18-2013, 01:59 AM   #214
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Quote:
Originally Posted by SmokeShank View Post
I noticed a Huge difference going from stock to stage 1 (N26). I installed the Stage 2 and selected map 2 and haven't really noticed much. I will have to hook back up and make sure its running map 2. Ill do that once I get home from work. Busy dealing with an M3 needing a valve spring at low mileage :/
The N26 has the electronic solenoid? Terry has stated that until there is full control of the electronic solenoid, stage 2 won't be as pronounced a step as stage 1 was because the boost can't get fully to the desired levels. Kind of like a stage 1.5 until control of the electronic solenoid is gained.
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      08-19-2013, 02:09 PM   #215
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How do you change maps on the steering wheel

Quote:
Originally Posted by stormtrooper328i View Post
Here's BMS's guide to the different JB4 maps (from http://www.n54tech.com/forums/showthread.php?t=15536):



Essentially, whether there is a difference in performance between each map you select is largely dependent on what fuel you're running. If you're using a lower octane fuel than the selected map calls for, you're not going to hit the boost targets that the particular map unlocks.
I need help finding out how to change the maps on the steering wheel??
just had the stage 2 installed. I have the N26 engine.
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      08-19-2013, 04:10 PM   #216
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Quote:
Originally Posted by JSillaway View Post
I need help finding out how to change the maps on the steering wheel??
just had the stage 2 installed. I have the N26 engine.
You can only select map 1 or map 0 with the wheel as of now. To change to other maps you have to hook up your computer with the usb cable to the JB4 (extra cost).

Hold Volume (-) for 5 seconds, then press either (+) for map 1 or (-) for map 0.

The full control from the steering wheel should be added soon.

DL the JB4 comp interface from here http://www.n54tech.com/forums/showthread.php?t=15536
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      08-19-2013, 08:19 PM   #217
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Quote:
Originally Posted by ScarecrowBoat View Post
You can only select map 1 or map 0 with the wheel as of now. To change to other maps you have to hook up your computer with the usb cable to the JB4 (extra cost).

Hold Volume (-) for 5 seconds, then press either (+) for map 1 or (-) for map 0.

The full control from the steering wheel should be added soon.

DL the JB4 comp interface from here http://www.n54tech.com/forums/showthread.php?t=15536
Thanks I appreciate the help!!
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      08-23-2013, 09:17 AM   #218
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Just a reminder that both the stage2 full tune and stage2 upgrade are available @ www.n54tuning.com

Mike
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      08-28-2013, 08:09 PM   #219
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Quote:
Originally Posted by rustyminded View Post
I did the system clean but I'm going easy on the car and still there is no hesitation so far I hope it's fixed or I will sell the car lol
Hi how is your car going? have managed to fix it.
what code did it read? I have Icom diagnosis I can help.

I recently bought stag2 upgrade, but didnt install yet.

Do you have navigation CD's for the 5series, I need to try to install them.
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      08-29-2013, 06:08 AM   #220
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Quote:
Originally Posted by mehana View Post
Hi how is your car going? have managed to fix it.
what code did it read? I have Icom diagnosis I can help.

I recently bought stag2 upgrade, but didnt install yet.

Do you have navigation CD's for the 5series, I need to try to install them.
Hey what's up, Thanks for the offer I will ask for it one day but for now the car is still amazing everyday, that was a while ago and it's fixed.. I already have stage 2 almost a month you are welcome in our Egyptian forum
No, I don't know about the navigation CD although I did coding for my car and my dad's F10 and I contact someone who's responsible for maps and he said there are no maps for Egypt but that was 3 months ago, I'm waiting for the LCI to make any changes.

http://www.f30post.com/forums/showthread.php?t=853049

Last edited by rustyminded; 09-13-2013 at 02:59 AM..
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