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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > MHD N55 E-Series - general discussion



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      05-16-2022, 01:52 PM   #9065
wheela
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Quote:
Originally Posted by wheela View Post
Well, I took the plunge this morning before heading to work. I'm going to let trims settle in for a bit before pushing it so nothing really to report yet, but so far so good...
Well, no lean codes on ver. 1.84 stage 2+, but pretty close. LTFT at was around 17% on 1.84, with LTFT and STFT routinely adding to over 20%. I thought it was a hardware issue because I found damage on my air duct, and then got my intake valves cleaned. But they smoke tested and found no leaks. Just flashed back to ver. 1.6 stage 2+ today, and my idle LTFT is back below 10% again. So for now, I'm sticking with ver. 1.6.
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      05-24-2022, 10:15 PM   #9066
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I thought I saw wheela posted a reply, but his response isn't showing up... weird.
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      05-24-2022, 10:19 PM   #9067
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I thought I saw wheela posted a reply, but his response isn't showing up... weird.
Yes, I did. It's like it put my reply on the next page, but wasn't showing the next page for some reason??? Now that you replied, I guess it decided there was enough content to show the next page, and now my comment finally shows up. Freakin weird...
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      05-25-2022, 02:55 PM   #9068
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Quote:
Originally Posted by wheela View Post
Well, no lean codes on ver. 1.84 stage 2+, but pretty close. LTFT at was around 17% on 1.84, with LTFT and STFT routinely adding to over 20%. I thought it was a hardware issue because I found damage on my air duct, and then got my intake valves cleaned. But they smoke tested and found no leaks. Just flashed back to ver. 1.6 stage 2+ today, and my idle LTFT is back below 10% again. So for now, I'm sticking with ver. 1.6.
Weird I don't seem to be having these issues with the e30 map. Car pulls hard, maybe not quite as hard as 1.6 but definitely smoother overall.
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      06-15-2022, 09:22 AM   #9069
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"Stage" maps are like pre-tailored clothes.

they fit like shit on some people.

they fit great on others.

So... yea
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      06-30-2022, 08:30 PM   #9070
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So now that MHD+ has been released for the n54, how long do you guys think us N55 e-series guys are going to have to wait? Just want real flex fuel integration.
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      07-07-2022, 02:25 AM   #9071
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https://datazap.me/u/yikchandev/2013...&data=3-4-5-13

My first time modding/logging/tuning. 2013 x5 e70 lci n55. I have no idea what to look for in a good stable tune/build. For the past year I have had the engine malfunction limp mode as well as a shit ton of other codes, clueless on how to fix. Finally did enough research and fixed it by tapping the ground on my CP map sensor and replacing a $40 maf from eBay. Problem was caused by a piggyback called racechip. Lesson learned.

Only Vrsf cp and 2 step plugs installed, everything else is stock. Bms intake is on the way.

Running stage 1 acn91 v1.8 with 18-20ish gal of shitty Las Vegas 91oct mixed with 1.8gal of e85. Tried the regular 91oct map stage 1 v1.8 and had super knock despite the e85. Log is of acn91 tune.

How does it look? What do I look for in regards to a good stable tune and why is my boost so high? I mean it pulls harder than I've ever experienced, kind of smooth too. Also, do I need (would I benefit) using a 3.5bar tmap? What bar is the map on stock n55 on an x5 lci(harness b)? I have so many questions I apologize. But these are the main ones that I'm concerned about right now.

Any feedback or answers is greatly appreciated. Thank you!

Last edited by yikchandev; 07-08-2022 at 07:28 PM..
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      07-11-2022, 08:38 PM   #9072
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https://datazap.me/u/darkfires102/mh...=30-49&mark=48

As far as I understand its a pretty good log. This one is from a few months ago when 1.84 just came out.
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      08-15-2022, 04:31 AM   #9073
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Quote:
Originally Posted by Spooly View Post
So now that MHD+ has been released for the n54, how long do you guys think us N55 e-series guys are going to have to wait? Just want real flex fuel integration.
Unfortunately never, MHD seen to hate n55e, or maybe it's the turner's that aren't bothered about working on it.
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      08-15-2022, 07:16 AM   #9074
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Unfortunately never, MHD seen to hate n55e, or maybe it's the turner's that aren't bothered about working on it.
I wouldn't agree that MHD or the tuners hate n55e. They definately stopped visiting this thread, but if you read the WHOLE thread from beginning to end, you'll see that this thread started off great, but over time devolved into a roast MHD thread. Eventually they just stopped posting here.

Anyways, back to flex fuel - I saw them post on a different forum very recently that full flex fuel integration may be on the horizon for us

Granted it's just a crumb, but he does say "yet"...
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Last edited by wheela; 08-15-2022 at 07:30 AM..
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      08-15-2022, 08:07 AM   #9075
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This is from a different thread, and doesn't mention n55 or flex fuel, but it does suggest they are working to get the lagging platforms (I'd say n55e fits this category) up to speed with other others that have more features. Just posting this to illustrate that there's hope, we just have to be patient.
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      08-30-2022, 01:57 PM   #9076
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Please check out my logs, my stft are maxed out and afr is creeping to almost 20. Hpfp? Car will barely idle, when I hit the gas and rev it a bit the rail pressure dips but the afr and stft go down to normal, then I let the idle try snd level out and the stft and afr spikes.

https://datazap.me/u/quinnhogue7/idl...og=0&data=4-16
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