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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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      09-02-2019, 11:03 AM   #8075
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hi guys,

i've n55 stage 2+ 91 oct
what is the problem ?

old sparkplug
https://datazap.me/u/albert666/4-0?log=0&data=4-5-20

with news spark plug
https://datazap.me/u/albert666/new-s...=0&data=4-5-20

maybe Pressure converter ??
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      09-11-2019, 03:48 PM   #8076
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Are there any new or rumored updates that we can look forward to?!
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      09-11-2019, 05:21 PM   #8077
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Quote:
Originally Posted by TeinBMW View Post
Are there any new or rumored updates that we can look forward to?!

WiFi, coupled with the new app. New app should come out with iOS support.
Flex fuel for N55, DME control of port injection, anti-lag/NLS, on the fly map switching. Believe all of those have been discussed publicly at this point.
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      09-11-2019, 11:37 PM   #8078
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Quote:
Originally Posted by TeinBMW View Post
Are there any new or rumored updates that we can look forward to?!
Throttle sensitivity sharpened to feel more like a real M car. Some really smart guys figured this out and posted the details in the N54 section. Really excited for this!

Basically BMW dumbed down the throttle sensitivity on the non Ms to feel more "luxurious". If you have a 6MT you can see the difference when reving the engine with the clutch pushed in. It's much faster/more responsive with the clutch in than out. One member (forget who) found out via logging with MHD that there was about a half second delay from pedal input until the throttle body started to react.

Last edited by carguy138; 09-11-2019 at 11:52 PM..
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      09-12-2019, 08:59 AM   #8079
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Hi all,

I am on the same boat with the ones switching from JB4 only to MHD flash without BEF. I am more than happy to switch to MHD. Now the question is do I need to swich from E30 mix map eveytime I ran out of E30 in my tank?
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      09-12-2019, 10:55 AM   #8080
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Quote:
Originally Posted by carguy138 View Post
Throttle sensitivity sharpened to feel more like a real M car. Some really smart guys figured this out and posted the details in the N54 section. Really excited for this!

Basically BMW dumbed down the throttle sensitivity on the non Ms to feel more "luxurious". If you have a 6MT you can see the difference when reving the engine with the clutch pushed in. It's much faster/more responsive with the clutch in than out. One member (forget who) found out via logging with MHD that there was about a half second delay from pedal input until the throttle body started to react.
Will this also be an impact on the AT or strictly the 6MT? I'd personally love to see a gauge sweep. That would be very cool! But i'd also love to see more tuning tweaks. Coming from Cobb, MHD has blown me away how much fun my car is now!
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      09-12-2019, 05:04 PM   #8081
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Quote:
Originally Posted by carguy138 View Post
Throttle sensitivity sharpened to feel more like a real M car. Some really smart guys figured this out and posted the details in the N54 section. Really excited for this!

Basically BMW dumbed down the throttle sensitivity on the non Ms to feel more "luxurious". If you have a 6MT you can see the difference when reving the engine with the clutch pushed in. It's much faster/more responsive with the clutch in than out. One member (forget who) found out via logging with MHD that there was about a half second delay from pedal input until the throttle body started to react.
MT owner here. This would be awesome.
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      09-12-2019, 08:17 PM   #8082
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Quote:
Originally Posted by TeinBMW View Post
Will this also be an impact on the AT or strictly the 6MT? I'd personally love to see a gauge sweep. That would be very cool! But i'd also love to see more tuning tweaks. Coming from Cobb, MHD has blown me away how much fun my car is now!
All models. Auto/DCT/Manual.

Manual is the easiest because one of the tables just gets zeroed out. The auto and DCT take a bit more to find the right combination and adjustment to torque request tables. Seems like some members figured out optimal settings already.

I may not be explaining it well but it's all in here.

https://www.e90post.com/forums/showthread.php?t=1610143
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      09-13-2019, 09:25 AM   #8083
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Quote:
Originally Posted by Sevelyth View Post
I have dealt with over boosting on my car for over a year now and it's honestly so frustrating. I messaged MHD and they had twisted send me over a revised stage 2+ tune that was intended to fix my over boosting and in the email, they said the BMS intake I have is crap and I should uninstall it which I did.

I've taken logs of my car religiously and let it adapt and the tune he sent over fixed the overboost in 2nd gear but not 3rd or 4th. It's the worst in 4th as it just hits a ceiling of 23.1 PSI and holds it while only giving me about 40% throttle.
Here is a log of 2nd gear and 4th gear so you can see the STUPID amount of overboosting my car does in 4th
https://datazap.me/u/mbowie100/stage...og=0&data=3-13
Here is a log of 3rd gear 3000RPM to redline log
https://datazap.me/u/mbowie100/stage...og=0&data=3-13
Notice in 3rd less overboosting than in fourth but I still get throttle closures.
Twisted hasn't answered my email with logs for 4 days and I'm afraid they just don't want to deal with me . Does anyone have advice?
Thanks


just curious, but when did you end me logs? last email i have from you is August 29th in response to sending you a tweaked map. See attached screenshot. Also, just because i take some time to get back to people, doesn't mean i don't want to deal with it. You aren't the only person that is sending me emails. multiply your email correspondence by a couple hundred every other day so.

Between trying to keep up with the forums, and social media messages, development, and regular busy day to day. Its impossible to respond to everyone as soon as they send me something. i dont just deal with E-series, i deal with over a dozen different platforms regularly. Sorry. I'll try to send you something today or tomorrow. maybe try resending that email too.
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      09-13-2019, 10:28 AM   #8084
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Quote:
Originally Posted by NRigs View Post
Thoughts on these two logs?
I may have a bunch of timing corrections from the heat. It has been in the 80s and 90s here. I am more worried about the dip in my rail pressure.

https://datazap.me/u/nrigs/log-15645...og=0&data=3-13
https://datazap.me/u/nrigs/log-15645...og=1&data=3-13

Other notes:
Car has 105k miles
Coil packs never changed
Spark plugs changed around 50k miles
Boost solenoid never changed
HPFP never changed
MAF sensor never cleaned


reset adaptation for lambda sensor and regulation, and high pressure fuel system. and try again. rail pressure should not be dropping that much
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      09-13-2019, 10:47 AM   #8085
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Quote:
Originally Posted by Twisted Tuning View Post
reset adaptation for lambda sensor and regulation, and high pressure fuel system. and try again. rail pressure should not be dropping that much
Thanks for the input. I have since changed the coil packs and spark plugs but I will log again after I reset those adaptations. It is also a bit cooler now, 60s-70s.
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      09-13-2019, 11:11 AM   #8086
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Hi Justin, any comments about these logs? I have several codes thrown as well.

https://datazap.me/u/hattat/log-1?log=0&data=3-11
https://datazap.me/u/hattat/log-2?log=0&data=3-12
https://datazap.me/u/hattat/log-3?log=0&data=3-12
https://datazap.me/u/hattat/log-4?log=0&data=3-12
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      09-16-2019, 10:34 AM   #8087
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i believe i answered your email
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      09-17-2019, 06:45 PM   #8088
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Quote:
Originally Posted by Twisted Tuning View Post
just curious, but when did you end me logs? last email i have from you is August 29th in response to sending you a tweaked map. See attached screenshot. Also, just because i take some time to get back to people, doesn't mean i don't want to deal with it. You aren't the only person that is sending me emails. multiply your email correspondence by a couple hundred every other day so.

Between trying to keep up with the forums, and social media messages, development, and regular busy day to day. Its impossible to respond to everyone as soon as they send me something. i dont just deal with E-series, i deal with over a dozen different platforms regularly. Sorry. I'll try to send you something today or tomorrow. maybe try resending that email too.
I haven't been able to take any logs, I went up for Uni and left my car back in my hometown and havnet driven it in a month. When I get back I will take logs of the tweaked map that you sent me. Thank you Justin!
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      09-18-2019, 03:09 PM   #8089
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Quote:
Originally Posted by carguy138 View Post
All models. Auto/DCT/Manual.

Manual is the easiest because one of the tables just gets zeroed out. The auto and DCT take a bit more to find the right combination and adjustment to torque request tables. Seems like some members figured out optimal settings already.

I may not be explaining it well but it's all in here.

https://www.e90post.com/forums/showthread.php?t=1610143
Thanks man!
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      09-20-2019, 04:58 AM   #8090
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Quote:
Originally Posted by carguy138 View Post
All models. Auto/DCT/Manual.

Manual is the easiest because one of the tables just gets zeroed out. The auto and DCT take a bit more to find the right combination and adjustment to torque request tables. Seems like some members figured out optimal settings already.

I may not be explaining it well but it's all in here.

https://www.e90post.com/forums/showthread.php?t=1610143
I see this was discovered for the N54. Do we have any confirmation that it is the same for the N55?
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      09-21-2019, 11:09 AM   #8091
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Data log - 2012 E92 N55

Car stumbles for a split second at WOT in 3rd, 4th and 5th (maybe 6th too, haven't pushed it that far).
No codes through MHD or ProTools. The two attached pulls were with XDelete activated so only 2wd.
I've tried the plugs gapped at 0.023" but no difference.
I read some opinions were one of the cooling fans cutting out could make the car cut out for a split second without throwing a code. I get no errors on the dash unit or gauge bezel at all when this happens.
I see a lot of timing correction though on the logs that I don't believe is normal, not sure how to fix that.

2012 335xi 6AT, 53k miles
MHD Stage 2+ 93oct
VRSF FMIC, BMS intake, new Delphi coils and one step colder NGK gapped at 0.02", VRSF down pipe, GFB diverter valve

https://datazap.me/u/iw335ix/log-156...3&mark=110-105

https://datazap.me/u/iw335ix/log-156...og=0&data=3-12

Last edited by iw335ix; 09-21-2019 at 03:01 PM..
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      09-21-2019, 03:26 PM   #8092
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Quote:
Originally Posted by iw335ix View Post
Car stumbles for a split second at WOT in 3rd, 4th and 5th (maybe 6th too, haven't pushed it that far).

https://datazap.me/u/iw335ix/log-156...3&mark=110-105

https://datazap.me/u/iw335ix/log-156...og=0&data=3-12
Looks like your fuel pump is broken. It should stay in the 2000-3000psi range under load and you're dropping below 900psi at 21psi boost.
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      09-23-2019, 03:30 PM   #8093
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Guys, what is going on in this log? Worst timing corrections I've ever logged...
Car only has 72K km (44k miles) and plugs have less than 10K km on them.

Bad gas?

https://datazap.me/u/jmontans/sept-3...26-27-28-29-30
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      09-23-2019, 05:40 PM   #8094
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I have similar codes...what was the verdict??
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      09-23-2019, 06:14 PM   #8095
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Quote:
Originally Posted by Jmontans View Post
Guys, what is going on in this log? Worst timing corrections I've ever logged...
Car only has 72K km (44k miles) and plugs have less than 10K km on them.

Bad gas?

https://datazap.me/u/jmontans/sept-3...26-27-28-29-30
ur running 93 octane map with candian gas..... what could be wrong
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      09-24-2019, 12:09 PM   #8096
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Quote:
Originally Posted by Jmontans View Post
Guys, what is going on in this log? Worst timing corrections I've ever logged...
Car only has 72K km (44k miles) and plugs have less than 10K km on them.

Bad gas?

https://datazap.me/u/jmontans/sept-3...26-27-28-29-30
Your Canadian 94 is basically the same as ACN91 (not good). Don't use the 93 OCT/98 RON map. Switch to ACN91/CAD94.
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