04-23-2016, 06:13 AM | #1 | |
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M2 at Burger (BMS)...Existing JB4 Works...But Not Great News
Just a maxed out N55...
From Terry... Quote:
From a power potential perspective, we'd have been better off with a B58.
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'02 S54 M3 (500/500 GC/Koni)
'08 N54 135 (JB4, DCI, BMW PS/Bilstein B6s, H&R M3 FSB, Strongflex FCABs) '14 N55 X1 (JB4, BMS DP, BMS Intake, Alpina TCU reflash, H&R Sports, Bilstein B6s, E93 M3 RSB, Strongflex FCABs, baby seat) '08 N54 535xi touring (Bilstein B6s, Downpipes, MHD tune, baby seat) |
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04-23-2016, 07:48 AM | #3 |
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Yup, and again, there are reasonable priced, reliable aftermarket solutions for the turbo size...so no real worries.
$900 gets you a very nice top end. $2500 gets you 500 bhp.
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'02 S54 M3 (500/500 GC/Koni)
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04-23-2016, 10:29 AM | #4 |
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What are the fueling solutions for these size solutions? For example, if you go with a Pure Stage 1 or Stage 2, who makes the piggyback or flash that goes with them?
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04-23-2016, 11:11 AM | #5 | |
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You can run an off the shelf JB4 (you'd want to set higher boost targets via a custom map to get the most out of it), nothing more. Or you can do a backend flash (Burger has a free one you can use) with or without a JB4 over top. It is literally a bolt-on solution. Easy as pie.
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'02 S54 M3 (500/500 GC/Koni)
'08 N54 135 (JB4, DCI, BMW PS/Bilstein B6s, H&R M3 FSB, Strongflex FCABs) '14 N55 X1 (JB4, BMS DP, BMS Intake, Alpina TCU reflash, H&R Sports, Bilstein B6s, E93 M3 RSB, Strongflex FCABs, baby seat) '08 N54 535xi touring (Bilstein B6s, Downpipes, MHD tune, baby seat) |
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04-23-2016, 11:28 AM | #6 |
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I'm really hoping somebody does a direct ECU tune for this thing. I'm sick of seeing these lame piggybacks that don't offer the user the ability to tweak their own parameters.
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04-23-2016, 11:31 AM | #7 |
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If you have e85 gas station nearby adding 65rwhp is pretty nice. Like he mentioned in the "post" 420rwhp will be pretty easy.
If that's not enough there is always Pure. But yes, yesterday's results were quite disappointing until e85 was tried. |
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04-23-2016, 11:32 AM | #8 | |
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There are backend flashes for this ECU already. And do you not know that you can set your own targets/custom map with a JB4? If anything, you cold argue the JB4 offers MORE user tuneabilty. And they certainly make MORE power than tunes. Lame I guess? This isn't 1995. Piggybacks have come a long way, actually offer many advantages over flashes on these platforms. You're sick of piggybacks? Based on what exactly? Your JB4 experience with a 4-cyclinder X1 is hardly indicative of what the rest of the community has been enjoying for years with the N54/55. Perhaps a bit of research on your end is in order?
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'02 S54 M3 (500/500 GC/Koni)
'08 N54 135 (JB4, DCI, BMW PS/Bilstein B6s, H&R M3 FSB, Strongflex FCABs) '14 N55 X1 (JB4, BMS DP, BMS Intake, Alpina TCU reflash, H&R Sports, Bilstein B6s, E93 M3 RSB, Strongflex FCABs, baby seat) '08 N54 535xi touring (Bilstein B6s, Downpipes, MHD tune, baby seat) Last edited by PrematureApex; 04-23-2016 at 11:49 AM.. |
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04-23-2016, 12:06 PM | #9 | |
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Just so I understand, though, you are saying that the existing, stock ECU would provide adequate fueling under all load conditions to increase safe hp and torque with a Pure Turbo, but a JB4 or similar piggyback would allow relatively simple custom mapping to increase limits further? And what is a "backend flash?" I certainly understand what a flash is--my Jag has a good one--but what does "backend" add? Thank you for whatever guidance you can provide at your convenience. It helps mitigate this interminable waiting process... |
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04-23-2016, 12:25 PM | #10 |
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I know what you mean, we ran Motecs (and much older systems) in our FSAE cars a decade or two ago.
Yup, with just the JB4, you can achieve good results with either setup. A backend flash alters the stock ECU tune (either expands factory ranges of operation, and/or shifts control of certain parameters to the JB4 for more control). The JB4 itself is a piggy running over top of the factory tune. So a backend flash, like a traditional tune, is altering the factory tune, in one aspect of another. More specifically, for the N55, the backend flash changes the base fuel and timing map to better match you'd want for larger turbos, so the JB4 has less work to do altering on the fuel and timing end. Not sure where stand alone flash tunes with the N55 are. You can read a bit here...(edit, that's for the N54...let me find it for the N55 big turbo swaps) http://www.n54tech.com/forums/showthread.php?t=20563 But literally a google search for N55 backend flash, BMS, etc. will provide a lot of info. There's a few years of solid tuning/background out there...which is very good new.
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'02 S54 M3 (500/500 GC/Koni)
'08 N54 135 (JB4, DCI, BMW PS/Bilstein B6s, H&R M3 FSB, Strongflex FCABs) '14 N55 X1 (JB4, BMS DP, BMS Intake, Alpina TCU reflash, H&R Sports, Bilstein B6s, E93 M3 RSB, Strongflex FCABs, baby seat) '08 N54 535xi touring (Bilstein B6s, Downpipes, MHD tune, baby seat) Last edited by PrematureApex; 04-23-2016 at 12:32 PM.. |
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04-23-2016, 01:49 PM | #11 | |
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EnzoPerformance PrecisionTuning MissionPerformance Just to name a few
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04-23-2016, 02:04 PM | #12 | |
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M2 tuning potential
This was already posted in the turbo thread by I believe it deserves its own thread/ discussion. Credit to PrematureApex for linking it. From Terry@BMS
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This is what I feared the most and considering we only have 91 octane fuel in AZ it is quite a let down. My n54 135i made more power than the M2 with a JB4. What are all your thoughts |
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04-23-2016, 02:28 PM | #14 |
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Do people really plan to mod their cars this quickly? I'm planning to keep the car stock, at least until until the factory warranty runs out, assuming I keep the car that long.
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04-23-2016, 02:41 PM | #15 |
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Seems to be a little self serving... he wants to sell tune kits! It is not exactly the same as the M235i N55 with a flash tune (as he claims)... so that casts some doubt on where he is getting his info.
Personally, I will keep mine stock. Not sure I need much more for a DD and don't plan to track it at this point. Others might have different plans of course... and maybe I will get jaded with the power level after a while |
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04-23-2016, 02:43 PM | #16 |
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04-23-2016, 02:49 PM | #17 | |
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04-23-2016, 02:50 PM | #18 |
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04-23-2016, 03:53 PM | #20 |
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It already has its own thread, in the correct forum?!
http://f87.bimmerpost.com/forums/sho....php?t=1253475 |
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04-23-2016, 04:18 PM | #21 | |
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