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2010 2011 BMW 5 Series Forum F10 Any 535’s running BOOTMOD3 or JB4? |
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05-05-2018, 12:59 PM | #2 |
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I havent dyno'd my 535i at all. but i have a JB4 stage 1, and let me tell you the gains feel great!!! it made a huge difference. Currently waiting for DP and my exhaust system this week. cant wait to run stage 2!
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05-09-2018, 04:56 AM | #4 |
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I had the jb4 on my n55 and recently switched to bm3. The two are worlds apart...bm3 is superior to jb4, from smoothness, power, ease of customization, as well as install...there's no comparison. They came out with customization sliders for the OTS maps, so you can control things like cold start on/off, cold start rpm, disable cat readiness which keep the CEL off, and a ton of other features. Now that bm3 can be flashed via obd2, I regret stepping into the jb4 world. Sold it on ebay a few weeks ago
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05-09-2018, 11:16 AM | #5 |
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Got a 14 f10 535i with jb4, Er charge pipe, er dp, bms intake haven't run it on the dyno but in sport on stage 2 you can definitely feel the difference. I've been told if you want to make real hp to step into bm3 I'm leaning to bm3 once I upgrade the turbo and inter cooler.
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05-15-2018, 11:01 PM | #9 |
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I run both together. BM3 works very well, but I use the JB4 for PI and boost control. I am seriously considering switching away from the JB4, but will need tuning help to dial in an alternative PI controller. I also want to run Meth to cool air since I am in AZ and we are already over 100 degrees daily.
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2022 G82 M4 - Isle of Man Green w/Kyalami Carbon Bucket Seats - MST Intakes, SSR Downpipes, JB4, AWE Exhaust.
2013 F10 N55 (535i), Pure Stage 2, Fuel-It PI Platinum, Fuel-It Stage 2 LPFP, BootMod3, Custom Turbo Inlet, Custom Cary Jordan Tune, More.. SOLD! 1999 e36 M3 - Estoril Blue - Track Car - S54 Swapped |
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05-16-2018, 01:25 PM | #10 |
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ECU FLASH TUNE vs JB4 is like comparing apples and oranges. You will get sooooo much more performance out of a ecu remap. I have an f10 n55 and have had both. ECU FLASH is the way to go 100%. Its a No Brainer
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05-20-2018, 09:37 PM | #12 |
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Got the BM3 and I’m loving it. Feels like a whole new car. It’s very smooth and no lag. Now time for a charge pipe, down pipes, intercooler, and intake. I’ll also be adding Jb4 as a piggyback.
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06-12-2018, 12:47 AM | #13 | |
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What are the benefits of that ? |
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06-12-2018, 07:27 PM | #14 |
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The more i learn, i have to agree with you. ECU remap is most likely the way to go. the JB4 seems to top out at 330-350whp range. I am considering flashing my ECU, just need to find a reputable tuner to do so. Oh yeah, and the budget to do it lol.
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06-20-2018, 04:35 PM | #15 |
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07-02-2018, 12:57 PM | #16 |
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Boost control. Flashes are at the limits of the dme. If you go big time and want to raise the boost further than the dme allows, even after a flash...you'll need something that tricks the dme into thinking it hasn't passed the limit associated with the dme boost settings.
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2012 F10 535ix - JB4 - BM3 - Meisterschaft GTC - coded modules - CF front lip - CF rear diffuser - clear bra
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07-23-2018, 03:01 PM | #18 |
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Finally flashed BM3 last night after almost 3 weeks of trying. I'm going to make a thread about it but I had a ton of issues (none of them had to do with BM3). My cars' software was outdated (2012 MY), my macbook wouldn't connect to the OBD, borrowed a laptop, wouldn't connect, finally I went and bought a new $250 laptop at walmart and everything went well. I also had to get a coder to remote into my laptop and update my DME.
All that being said, the tune is beautiful. The power delivery is very smooth, 6th feels like 4th on the highway. I did a 91 oct Stage 2 flash. Burbles are nice but I thought they'd be louder in Sport mode. I have the slider at 6, I'm going to see how 7 sounds. One issue I did have - I attempted to flash the Stage 2 AGG tune (aggressive) and I had mulitiple drivetrain malfunctions. I actually got pretty worried as the online recode didn't work either. I went back to the Stage 2 (non AGG) tune and I'm all good. I read somewhere that it's only for M cars but the F30 335i guys have it...
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07-23-2018, 03:59 PM | #19 |
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when you update maps to more aggressive maps please be aware your car has to be tip top. Sparkplugs cant be past the desired changing points, coil packs cant be 60k plus, etc.
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07-23-2018, 05:16 PM | #20 | |
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I'm happy with the standard Stage 2 flash, but now my wastegate rattle is really bad. It rattles terribly right at my cruising rpm.
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F10 535i | Retired: E60 ///M5 | E92 335i
"If everything seems under control, you're not going fast enough" -Mario Andretti |
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07-28-2018, 05:10 PM | #21 | |
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07-30-2018, 03:19 PM | #22 |
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Yea I tried twice with no luck. Non AGG tune works great. I’ll mess around with it some more today.
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