JB4 Map Choice

keendog42 · 10-08-2012, 08:41 PM

07' 335i - JB4, DCI, DP's, 7" FMIC, 93 octane fuel. Should I be running Map 2 or 5? I've been running 2 but have seen a few post lately that state 5 is much better with these mods. Switched to 5 today but seemed soft in comparison; really noticed the lack of the turbo spool sound and boost was a few psi less. Do I need to give it time to "learn"?

Torres_335i · 10-08-2012, 08:45 PM

Need to do three pulls in third for it to learn.

marv85 · 10-08-2012, 09:01 PM

+1, after the pulls use the the fuel gauge for boost, and check how much boost you sustain in the midrange. It might autotune to less than 14.5 psi which is what map 2 is set to. Although you're FBO, with some cold weather (and hopefully you have good gas) you should be all set.

Torres_335i · 10-08-2012, 09:08 PM

and if you want alittle more power put some e85 in the tank.

WilliamS · 10-09-2012, 08:35 AM

Heck on mine, JB4 and nothing more, boost on fuel Im seeing spikes to 18 sustain 14-15 on map 5. Ive seen it try to hold 17 or so once, as soon as I got to 6k rpms the car fell flat on its face. The Autotune is my favorite though.

oma3710 · 10-09-2012, 08:43 AM

e85 makes a big difference

Jeff@TopGearSolutions · 10-09-2012, 12:28 PM

You should simply log both map 2 and map 5 then we can chime in with more substantial advice.

Map 5 is auto-learn so after time it will adapt appropriately, in theory.

marv85 · 10-09-2012, 01:40 PM

+1, or you can do three third gear pulls if you want it to adapt faster

keendog42 · 10-28-2012, 07:12 AM

Back to Map 2 - Did the 3rd gear pulls etc but my car just didn't react well to Map 5. Boost was down 5psi at half throttle, the exhaust tips got very black, also noticed more turbo lag between shifts and the turbo spool that I picked up when I installed the DP's was gone. I always run Shell V-Power so I don't believe the fuel is the issue; bracing for Sandy this weekend so maybe I'll run the logs after it blows over but for now my car is much happier on 2.

spool twice · 10-28-2012, 09:39 AM

I would keep it in map 5 because it takes the guess work out of whether you have enough octane for a given map, therefore keeps it safer. Even if it peaks less than 14.5 psi (which I bought it'll do given your mods and octane level), your car will be happier overall.

335inDe · 10-28-2012, 06:11 PM

No advice is good advice without logs..you can adjust lag fix for quicker spool..but theoretically map 5 will be stronger with full bolt on..GL

Zebra99 · 10-28-2012, 06:35 PM

I was consistently hitting 16psi and tapering down to about 12-13 up top on only 91 gas.

Not sure why you're car is reacting differently but it could be a slew of things. I tried Map 2 and noticed my car wasn't happy like it was on Map 5.

Log, figure out what's wrong and switch to 5. 16psi all day long

Mike@N54Tuning.com · 10-29-2012, 11:13 AM

As others have mentioned to some logs on both, but before doing map5 let it run on that map for a few days and then do the logs. Then you can switch to map2 and do those logs and you can compare them in terms of boost, etc.

The fuel boost gauge is not accurate enough to differentiate subtle boost changes. The logs will show it very clearly.

Mike

keendog42 · 11-25-2012, 01:25 PM

Solved my Map 5 let down. For all that said that Map 5 was a stronger running program than Map 2; you are absolutely correct as long as the person doing the programming (me) is smart enough to upload the newest Firmware. I was running the 2/7/2012 version which would only allow 12psi boost. Uploaded the new Firmware and boy what a difference! 30mph in second gear, floor it & it breaks both tires loose and I'm not running run-flats! Boost on fuel is now showing 17-18psi max & maintaining 15-16psi. Thinking that I may need to up the safety from 17psi to 19psi.

Not sure what Terry changed but great job!

10-08-2012, 08:41 PM	#1
keendog42 New Member 0 Rep 21 Posts Drives: 335i Join Date: Dec 2011 Location: NJ iTrader: (1)	JB4 Map Choice 07' 335i - JB4, DCI, DP's, 7" FMIC, 93 octane fuel. Should I be running Map 2 or 5? I've been running 2 but have seen a few post lately that state 5 is much better with these mods. Switched to 5 today but seemed soft in comparison; really noticed the lack of the turbo spool sound and boost was a few psi less. Do I need to give it time to "learn"?
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10-08-2012, 08:45 PM	#2
Torres_335i Banned 2 Rep 93 Posts Drives: E92 Bsm 335i Join Date: Sep 2011 Location: long island iTrader: (1)	Need to do three pulls in third for it to learn.
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10-08-2012, 09:01 PM	#3
marv85 Colonel 70 Rep 2,626 Posts Drives: '07 E92 335i MT Join Date: Jun 2010 Location: Bay Area iTrader: (7)	+1, after the pulls use the the fuel gauge for boost, and check how much boost you sustain in the midrange. It might autotune to less than 14.5 psi which is what map 2 is set to. Although you're FBO, with some cold weather (and hopefully you have good gas) you should be all set. __________________ '07 E92 335i 6MT- HP650, inlets/outlets, ER FMIC, VRSF CP, LPFP stg2, CSF rad, 'is Aux rad, ER OC, Ohlins, M control arms, eibach front sway bar. '05 C55 AMG SOLD - '22 Tesla M3P \| '10 E92 335i M, 6MT COBB, FBO, st2 LPFP, Mfactory LSD \| '07 E90 335i, PTF COBB E50, FBO, HFS4
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10-08-2012, 09:08 PM	#4
Torres_335i Banned 2 Rep 93 Posts Drives: E92 Bsm 335i Join Date: Sep 2011 Location: long island iTrader: (1)	and if you want alittle more power put some e85 in the tank.
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10-09-2012, 08:35 AM	#5
WilliamS GoofBall 50 Rep 1,055 Posts Drives: 2008 E92 N54 Xdrive Join Date: Jun 2012 Location: Tampa, FL iTrader: (2)	Heck on mine, JB4 and nothing more, boost on fuel Im seeing spikes to 18 sustain 14-15 on map 5. Ive seen it try to hold 17 or so once, as soon as I got to 6k rpms the car fell flat on its face. The Autotune is my favorite though.
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10-09-2012, 08:43 AM	#6
oma3710 Major 195 Rep 1,282 Posts Drives: ? Join Date: Apr 2012 Location: Simpsonville, SC iTrader: (1)	e85 makes a big difference __________________ __________________ SOLD! X5 35i sdrive- JB4 SOLD! 435i- Cary Jordan E30 Tune~ Dinan Turbo~ BM3 trans tune~ XDI-35~ 3.5 T-map sensor~ VRSF HD FMIC~ VRSF Chargepipe~ VRSF Catless Downpipe~ CTS Intake~ FTP boost pipe~ FTP intake inlet~ FTP oil catch can~ Turbosmart dual bov~
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10-09-2012, 12:28 PM	#7
Jeff@TopGearSolutions 3441 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	You should simply log both map 2 and map 5 then we can chime in with more substantial advice. Map 5 is auto-learn so after time it will adapt appropriately, in theory.
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10-09-2012, 01:40 PM	#8
marv85 Colonel 70 Rep 2,626 Posts Drives: '07 E92 335i MT Join Date: Jun 2010 Location: Bay Area iTrader: (7)	+1, or you can do three third gear pulls if you want it to adapt faster __________________ '07 E92 335i 6MT- HP650, inlets/outlets, ER FMIC, VRSF CP, LPFP stg2, CSF rad, 'is Aux rad, ER OC, Ohlins, M control arms, eibach front sway bar. '05 C55 AMG SOLD - '22 Tesla M3P \| '10 E92 335i M, 6MT COBB, FBO, st2 LPFP, Mfactory LSD \| '07 E90 335i, PTF COBB E50, FBO, HFS4
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10-28-2012, 07:12 AM	#9
keendog42 New Member 0 Rep 21 Posts Drives: 335i Join Date: Dec 2011 Location: NJ iTrader: (1)	Back to Map 2 - Did the 3rd gear pulls etc but my car just didn't react well to Map 5. Boost was down 5psi at half throttle, the exhaust tips got very black, also noticed more turbo lag between shifts and the turbo spool that I picked up when I installed the DP's was gone. I always run Shell V-Power so I don't believe the fuel is the issue; bracing for Sandy this weekend so maybe I'll run the logs after it blows over but for now my car is much happier on 2.
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10-28-2012, 09:39 AM	#10
spool twice Rainbow Racer 1008 Rep 2,539 Posts Drives: BMW M4cs Join Date: Sep 2010 Location: Tampa Bay, FL Area iTrader: (7) Garage List 2019 M4cs [0.00]	I would keep it in map 5 because it takes the guess work out of whether you have enough octane for a given map, therefore keeps it safer. Even if it peaks less than 14.5 psi (which I bought it'll do given your mods and octane level), your car will be happier overall. __________________ -Loe P.- Prior Car:'14 Audi S5 3.0t DSG [ APR ECU/TCU \| Pullies + basic bolt-on mods \| 10.861@127.90mph ] Current Car: F82 M4cs \| TT-RS \| On Order: i4 M50
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10-28-2012, 06:11 PM	#11
335inDe Private First Class 38 Rep 144 Posts Drives: 07' 335i Join Date: Jun 2012 Location: Delaware iTrader: (1)	No advice is good advice without logs..you can adjust lag fix for quicker spool..but theoretically map 5 will be stronger with full bolt on..GL
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10-28-2012, 06:35 PM	#12
Zebra99 Colonel 112 Rep 2,856 Posts Drives: 2011 335is E93 Join Date: Aug 2011 Location: Ontario iTrader: (6) Garage List 2008 BMW 335i E93 [10.00]	I was consistently hitting 16psi and tapering down to about 12-13 up top on only 91 gas. Not sure why you're car is reacting differently but it could be a slew of things. I tried Map 2 and noticed my car wasn't happy like it was on Map 5. Log, figure out what's wrong and switch to 5. 16psi all day long
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10-29-2012, 11:13 AM	#13
Mike@N54Tuning.com Joint Chiefs of Staff 4914 Rep 115,980 Posts Drives: 2007 335i, 2015 M3 Join Date: Dec 2008 Location: N54tuning.com iTrader: (89)	As others have mentioned to some logs on both, but before doing map5 let it run on that map for a few days and then do the logs. Then you can switch to map2 and do those logs and you can compare them in terms of boost, etc. The fuel boost gauge is not accurate enough to differentiate subtle boost changes. The logs will show it very clearly. Mike
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11-25-2012, 01:25 PM	#14
keendog42 New Member 0 Rep 21 Posts Drives: 335i Join Date: Dec 2011 Location: NJ iTrader: (1)	Solved my Map 5 let down. For all that said that Map 5 was a stronger running program than Map 2; you are absolutely correct as long as the person doing the programming (me) is smart enough to upload the newest Firmware. I was running the 2/7/2012 version which would only allow 12psi boost. Uploaded the new Firmware and boy what a difference! 30mph in second gear, floor it & it breaks both tires loose and I'm not running run-flats! Boost on fuel is now showing 17-18psi max & maintaining 15-16psi. Thinking that I may need to up the safety from 17psi to 19psi. Not sure what Terry changed but great job!
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