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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > MHD "take a look at my log" thread



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      03-04-2017, 09:57 AM   #727
bcoffin23
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How are things looking? Anything out of tolerance?

http://www.datazap.me/u/bcoffin23/lo...og=0&data=3-23

I am interested in learning what variables to look at and what values I should be striving for.

Running MHD Stage 1, aFe stage 2 intake, secondary cat delete, and 15% e85 and the rest 91oct
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      03-04-2017, 05:33 PM   #728
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Originally Posted by bcoffin23 View Post
How are things looking? Anything out of tolerance?

http://www.datazap.me/u/bcoffin23/lo...og=0&data=3-23

I am interested in learning what variables to look at and what values I should be striving for.

Running MHD Stage 1, aFe stage 2 intake, secondary cat delete, and 15% e85 and the rest 91oct
How many gallons does 15% E85 equate to?
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      03-04-2017, 05:40 PM   #729
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Originally Posted by bcoffin23 View Post
How are things looking? Anything out of tolerance?

http://www.datazap.me/u/bcoffin23/lo...og=0&data=3-23

I am interested in learning what variables to look at and what values I should be striving for.

Running MHD Stage 1, aFe stage 2 intake, secondary cat delete, and 15% e85 and the rest 91oct
Logs look good
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      03-04-2017, 05:45 PM   #730
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Originally Posted by cristy7610 View Post
Please,could somebody take a look here?
What happened in 4th gear around 5500rpm? Timing dropped without registering a correction...
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      03-04-2017, 10:17 PM   #731
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Experts please chime in. Running e25 tune with E26 in the tank.
Some throttle closures, please note did not have the best tires on, and traction was on. Look decent to me, just wanted to get thoughts on Bank 1 trailing the bank 2 just by a little when going off throttle. Seems minute, but still wanted to get some inputs. Injectors on bank 1 were replaced last year since witht he DME. FCP Euro has index 13 (13538648937) available. Worth doing it now or can this wait. Cars going under the knife for LSD in a couple of weeks. Injectors would mean cheaper tires lol.


http://datazap.me/u/deritwik/2017-03...14-15-16-21-24
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Last edited by ritzzzzzwik; 03-04-2017 at 10:21 PM.. Reason: Correction: bank 1 has new index 13...odd! Bank 2 are original! car at 141K miles
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      03-06-2017, 10:05 AM   #732
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Quote:
Originally Posted by Shane303 View Post
How many gallons does 15% E85 equate to?
16*.15 = 2.4

So between 2-2.5gal

I built a calculator that take into account the current amount of fuel in your tank and the e85% concentration of your tank before you refuel. This provides an accurate snapshot of your e85 concentration at all times.

I will post it soon for everyone to use.
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      03-06-2017, 11:34 AM   #733
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Quote:
Originally Posted by Shane303 View Post
What happened in 4th gear around 5500rpm? Timing dropped without registering a correction...
Should I repeat the log?I don"t know why is registering whitout correction..
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      03-11-2017, 08:28 AM   #734
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Could the guys in the know please take the time to review this log for me, there should be three others to choose from from the same night aswell.

A member told me im lean in bank 2 and that the STFT is not being adjusted in bank two either. Any idea on that ?

Ive also got what appears to be a boost leak, is there any way to tell if this is just shitty turbos/wastegates because ive checked all my connections so many times, yet still so slow to build boost and still doesnt hit target.

Ive also been getting lambda codes when crusing on the highway.

http://www.datazap.me/u/mj80/log-148...o=3&zoom=18-79
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      03-11-2017, 08:35 AM   #735
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Originally Posted by MJ80. View Post
Could the guys in the know please take the time to review this log for me, there should be three others to choose from from the same night aswell.

A member told me im lean in bank 2 and that the STFT is not being adjusted in bank two either. Any idea on that ?

Ive also got what appears to be a boost leak, is there any way to tell if this is just shitty turbos/wastegates because ive checked all my connections so many times, yet still so slow to build boost and still doesnt hit target.

Ive also been getting lambda codes when crusing on the highway.

http://www.datazap.me/u/mj80/log-148...o=3&zoom=18-79
Looks like bank 2 injectors are leaking and/or your lambda(oxygen) sensor is bad. I would stop running the car hard with this issue, the AFR is VERY lean in a few logs = BOOM
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      03-11-2017, 08:49 AM   #736
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Quote:
Originally Posted by Shane303 View Post
Looks like bank 2 injectors are leaking and/or your lambda(oxygen) sensor is bad. I would stop running the car hard with this issue, the AFR is VERY lean in a few logs = BOOM
Thank you for reviewing it for me. Iv been thinking injectors are on the way out for a month or so now, they are extremely noisy atm. Would the leaking injectors be the cause of the 02 codes ? or do you think the 02 has its own issues ?
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      03-11-2017, 10:10 AM   #737
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Originally Posted by MJ80. View Post
Thank you for reviewing it for me. Iv been thinking injectors are on the way out for a month or so now, they are extremely noisy atm. Would the leaking injectors be the cause of the 02 codes ? or do you think the 02 has its own issues ?
If this were my car, I would swap bank 1 and bank 2 lambda sensors and see if the problem follows.
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      03-11-2017, 09:28 PM   #738
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Hey everyone,

First logs here. Please have a look and let me know if you see any problems.
I noticed timing is only 6-6.8 near redline. Is that conservative? Also, the rail pressure touches 1685's is that low?
Phoenix racing FMIC will go on next week. Should help with iAT

http://datazap.me/u/topgearsdead/mhd...og=0&data=4-21

2007 335i sedan auto, 251,000km on oem turbos hence wg are sloppy drop in filter, mhd stage 1 94oct, -6C (21f) outside.

Last edited by Topgearsdead; 03-12-2017 at 11:40 AM..
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      03-12-2017, 11:43 AM   #739
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Here is one more log, please look and educate me please

http://datazap.me/u/topgearsdead/200...10-11-12-21-25
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      03-12-2017, 02:56 PM   #740
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http://datazap.me/u/kisarci/kisarci-...ata=3-23-24-25

I read that as long as the STFT on n54's is around +/- 30ish then it's ok.
But the STFT bank 1 is very rich compared to bank 2; the gap is very big.
Could this be a leaky injector?
I'm not getting any codes and the car pulls great so is this something I shouldn't be concerned about?
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      03-12-2017, 05:51 PM   #741
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http://datazap.me/u/topgearsdead/pho...10-11-12-21-25

Here are more logs with the latest Phoneix Racing intercooler. Is it working better? Seems like it, you can compare my logs from earlier posts on this page.
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      03-12-2017, 05:52 PM   #742
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Quote:
Originally Posted by kisarci View Post
http://datazap.me/u/kisarci/kisarci-...ata=3-23-24-25

I read that as long as the STFT on n54's is around +/- 30ish then it's ok.
But the STFT bank 1 is very rich compared to bank 2; the gap is very big.
Could this be a leaky injector?
I'm not getting any codes and the car pulls great so is this something I shouldn't be concerned about?
mine is rich too, see my logs.
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      03-13-2017, 12:07 AM   #743
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http://datazap.me/u/imfinewithslow/l...-23-28&solo=22

Bogging down at 3k rpms when WOT. Super noticeable in 4th.
I need to learn more about how the turbo system works obviously...
Can someone please explain this for me?

Mods: catless down pipes, charge pipe with forge diverter valves, smaller VRSF FMIC.

Had turbos replaced about 7k miles ago.
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      03-13-2017, 10:27 AM   #744
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Quote:
Originally Posted by I'mFineW/Slow View Post
http://datazap.me/u/imfinewithslow/l...-23-28&solo=22

Bogging down at 3k rpms when WOT. Super noticeable in 4th.
I need to learn more about how the turbo system works obviously...
Can someone please explain this for me?

Mods: catless down pipes, charge pipe with forge diverter valves, smaller VRSF FMIC.

Had turbos replaced about 7k miles ago.
You're overboosting in that range...you'd prob benefit best from a custom tune.
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      03-13-2017, 11:54 PM   #745
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Quote:
Originally Posted by Topgearsdead View Post
http://datazap.me/u/topgearsdead/pho...10-11-12-21-25

Here are more logs with the latest Phoneix Racing intercooler. Is it working better? Seems like it, you can compare my logs from earlier posts on this page.
Anyone have a chance to review my logs? Is my fueling ok? Ambient temp was 25F
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      03-14-2017, 04:31 PM   #746
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Quote:
Originally Posted by Topgearsdead View Post
Anyone have a chance to review my logs? Is my fueling ok? Ambient temp was 25F
Not bad, no timing corrections for a start. Your iat is 28f over ambient and rises 15f during run. Yes better than stock ic but, a 7in ic usually runs about 15f above ambient. Stfts are -ve all thru, perhaps a fuel air adap will help.
Lambdas, lpfp, rail look ok. Overboosting after 5900rpm resulting in low throttle.
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      03-14-2017, 09:17 PM   #747
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Originally Posted by Sgop335 View Post
Not bad, no timing corrections for a start. Your iat is 28f over ambient and rises 15f during run. Yes better than stock ic but, a 7in ic usually runs about 15f above ambient. Stfts are -ve all thru, perhaps a fuel air adap will help.
Lambdas, lpfp, rail look ok. Overboosting after 5900rpm resulting in low throttle.
Thank you very much. What does STFS stand for? Fuel trims? I will try adaption with MHD application?
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      03-15-2017, 08:17 AM   #748
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Originally Posted by Topgearsdead View Post
Thank you very much. What does STFS stand for? Fuel trims? I will try adaption with MHD application?
Short Term Fuel Trim. There are two one for each bank.
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