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YoTimes YoTimes is offline
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Default Log Review - Rich A/F and timing ~4k rpm - 02-07-2018, 12:11 AM

Hi All,

I have a e92 2008 335i 6MT with apprx 77k miles on her N54. I am running 93 octane pump.
Performance Mods:
  • BMS DCI
  • Charge Pipe
  • Tial BOV
  • VRSF *********
  • JB4 G5 ISO

I will soon be adding: a MHD JB4 BEF (already flashed, but the logs are the day before), VRSF 7HD intercooler (waiting on shipment), Stage 2 LPFP W450 (in mail), then VRSF inlets (oem location) hopefully in time for summer. I just wanted to get some good base line logs before the MHD and the power mods.

I was parsing over my logs and I noticed I seem to be pulling timing around 4-5k RPM in Map 5. I also noticed that I seem to be running a tad rich around 10.5 at some points. I just wanted to drop some logs here to see what you guys think.

In order to try obey the 3 log per post guidelines I have included 1 log from Map 1, and 3 for Map 5 with one of them being a 2-4 gear pull (thats 4 sorry!). I also have more if needed. This weekend I will log the difference with the MHD BEF. I am hoping to get similar ambient temps, but it looks like we may see a delta of around +20° F from last weekend. Temps in Mexico were around 40°F while I logged. In the later pulls in Map 5 it looks like we started targeting less PSI (around 12). I am assuming due to the instances in the previous logs.

Hardware disclosure: I believe I may have some type of leak (exhaust?) I will record a video and post it tomorrow for reference if needed, but on revs I am getting a hissing noise from what sounds like the turbo area (wastegates?). I do not notice this at all when driving. Also, the spark plugs are next on my maintenance list. They have about 17k on them currently (NGKs). < I am suspecting these guys for some of the timing issues.

Thanks all! I will update this again once I get the logs post MHD flash.

-Mike
Attached Files
File Type: csv Pull 1 Map 1 180203_2150.csv (8.6 KB, 47 views)
File Type: csv Pull 3 Map 5 180203_2200.csv (8.5 KB, 47 views)
File Type: csv Pull 4 Map 5 180203_2201.csv (9.0 KB, 47 views)
File Type: csv Pull 6 Map 5 G2-4.csv (12.4 KB, 47 views)
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Default 02-07-2018, 09:27 AM

Looks to me like your biggest issue is octane/poor timing.

Flash and some E85 if available will probably help a lot.

Updating the plugs would also be a good move.



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Default 02-07-2018, 09:43 AM

Hi Steve

Thanks for taking your time to check out my logs! I will definitely be refreshing the plugs soon. I also have E85 station a few miles away i'm excited to give it a go! I'll posted updated logs when I get to the station this weekend.

Thanks again!

-Mike
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Default 02-07-2018, 08:02 PM






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Default 02-11-2018, 01:34 AM

Swapped out my vacuum lines and did my spark plugs. Cylinder 5 and (mostly) 6 plugs were swimming in oil... Looks like I'll be doing an valve gasket again. Plus rain this weekend made for less than ideal logging conditions.

Fingers crossed for next weekend.

Mike
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Default 03-05-2018, 01:59 AM

Got an update on the car.

Replaced the valve cover as it was cracked. Also replaced 6 plugs and 6 coils.

I took some logs this past weekend. Did 5 passes. 3 on map 2, and 2 on map 5.

I've uploaded the 2nd and 3rd pulls on map 2. Also, the map 5 pulls to keep as consistent logs as possible. I think the LPFP is about at its limit on the map 2 logs(?).

Anything thing else I am missing going on in these logs?

Car is currently down for the VRSF 7in hd fmic. I should have it buttoned up after work tomorrow. I am interested to see how the IATs compare in future logs. As after the 5 runs I was noticing some heat soak.

I also have my stage 2 fuel pump ready for install, but it may be 2 weeks before I can get time to install it. Inlets have arrived as well, but I am holding off on it for now. The goal is to log between each mod to keep track of how the car is running (as I should :P).

With these logs, thoughts on e85 before the LPFP upgrade? Could I try to run e30?

Thanks all,

Mike
Attached Files
File Type: csv Pull 2 Map 2 180303_1458.csv (9.3 KB, 59 views)
File Type: csv Pull 3 Map 2 180303_1459.csv (9.0 KB, 61 views)
File Type: csv Pull 4 Map 5180303_1502.csv (9.0 KB, 49 views)
File Type: csv Pull 5 Map 5 180303_1508.csv (9.3 KB, 46 views)

Last edited by YoTimes; 03-05-2018 at 02:02 AM.. Reason: spelling
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Default 03-05-2018, 06:56 PM

Map 5 logs look pretty normal for pump gas.

LPFP looks like it will probably tolerate E30 but you'll have to log to verify.



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Default 03-06-2018, 12:17 AM

Perfect, I'll give it a go and see how she does.

Thanks Steve.

-Mike
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Default 03-06-2018, 10:12 AM





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Video of our Stage 2 LPFP upgrade installation.

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Default 03-07-2018, 11:46 PM

Got a chance to run some logs on E30 - Map 5 tonight. Looks like I need to start looking into LSD options

I ran the tank until I was getting '--- miles to empty' readouts. I tested the E85 content and the local gas station came back at a E75 mix. Not too bad from what I've seen others get. I ended up adding 5.0 gal E85 to 11.1 gal 93 octane. The calculators put that mixture at about a 30.31% mixture; ≈E30.

I reset adaptations using the JB4 (menu 1/7), and switched to map 5. The car was not warmed up yet so I drove a while to get to temp, and to allow the tank to more adequately mix.

Did 8 passes tonight. I couldn't help myself. One thing I did notice is the IATs looked a lot better with the VRSF 7in hd fmic. Ambient temps were down after some rain from the last couple days. We logged in ≈ 42F temps tonight. I did not see nearly the jump in IATs we I first saw from the stock unit. So far, so good. IATs seemed to raise 3-4 degrees, settle, and in some cases drop a degree or two.

Here are the first 2 pulls in map 5 gear 3. I have also included a gear 2-4 log.

Looks like the LPFP is maxed out as I see values drop to around 45. With that said, it looks like the timing issues were resolved with the better fuel. I may need to move that stage 2 pump install up in priority :P.

Thanks for sticking with me through the process. Let me know if there is anything else from my side I can further assist with.

One question I have is regarding the E85 column in the logs. It reports a value of 46. How does this correlate to the mixture I added today? I notice on previous logs it logged a value of 30.

Thanks again!

Best,
Mike
Attached Files
File Type: csv Pull 1 Map 5.csv (8.9 KB, 38 views)
File Type: csv Pull 2 Map 5.csv (10.2 KB, 50 views)
File Type: csv Pull 5 Map 5 Gear 2-4.csv (11.6 KB, 35 views)
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Default 03-08-2018, 10:05 AM

Correct, LPFP is struggling and will need upgraded.

For VS, you have to calibrate that to a known mix. Best to run an actual sensor then there is no guessing or calibrating.



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Default 03-08-2018, 10:25 AM

Thanks for the reply Steve. I will definitely be getting that new LPFP installed soon.

Pardon my ignorance. What is the 'VS' you mentioned in your last reply? I don't see reference to it on the variables post, or in the logs. Are you talking about the e85 sensor between the tank and HPFP?

Thanks,
Mike
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Default 03-09-2018, 09:40 AM

VS = Virtual Sensor

If an actual sensor is installed, no calibration is needed.



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Default 03-15-2018, 09:34 PM

I'm back after the stage 2 LPFP install. *edit* I also cleared the adaptations. Did 5 runs after watching the LPFP at idle and cruise for 10 mins. Looks like it holds 74 on cold start and between 65-70 at cruise power.

Here are the logs from 3 of the 5 passes.

I believe I see a few instances where timing is pulled. More E required?

To me things look OK. Thoughts?

What value can I expect out of the LPFP? From my online studies it looks like the low to mid 70 at cruise/idle is fine, and as posted on the main parameters thread 55-70psi at WOT is OK.

@Steve, can you point me to some material to read up on how I can adjust the E85 VS. Is it just a trial and error process?

I am looking to get the inlets installed toward late March early April (tentative). I will most likely then start looking for a tuner to do some edits to see what we can do with the 3'er.

Once again, thanks for your time!

-Mike
Attached Files
File Type: csv Pull 3 Map 5 180315_2240.csv (9.6 KB, 35 views)
File Type: csv Pull 4 Map 5 180315_2244.csv (9.5 KB, 37 views)
File Type: csv Pull 5 Map 5 180315_2245.csv (7.3 KB, 65 views)

Last edited by YoTimes; 03-15-2018 at 10:44 PM.. Reason: cleared adaptations
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Default 03-16-2018, 09:17 AM

Log looks clean and normal as does the LPFP. It idle and cruise, the DME regulates the LPFP with PWM, as increased flow is needed, that signal will be increased.

The VS is just that, so it will need calibrated and monitored with frequent testing of your fuel to ensure it is accurate.



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Default 03-16-2018, 10:50 AM

Thanks for the info Steve. I really do appreciate your time.

Would it be pushing it to try the E85 BEF with +10% on the mixture? That would bring it to around an E40 mix. Or would it just be safer to hold the E30 for now?

-Mike
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Default 03-17-2018, 07:55 PM

Quote:
Originally Posted by YoTimes
Thanks for the info Steve. I really do appreciate your time.

Would it be pushing it to try the E85 BEF with +10% on the mixture? That would bring it to around an E40 mix. Or would it just be safer to hold the E30 for now?

-Mike
Based on your last logs, i don’t see why you couldn’t try bumping the ethanol content a bit.

If you jump to e40- you may want to switch to the RACE BEF.

Give it a shot & log



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Default 03-25-2018, 10:38 AM

Hey guys,

I made the jump to E40 with the Race BEF. Grabbed a few (5) logs the other night. It looks like my wgdc begins to creep up and I begin to fall under target. Car pulls great and we did not get any codes or hiccups otherwise. Thoughts on how I am looking so far, and possible changes I can make?

Thanks all!
-Mike
Attached Files
File Type: csv Pull 1 Map 5 180324_0041.csv (10.1 KB, 44 views)
File Type: csv Pull 3 Map 5 180324_0045.csv (7.7 KB, 40 views)
File Type: csv Pull 4 Map 5 180324_0046.csv (11.1 KB, 41 views)
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Default 03-25-2018, 12:13 PM

Quote:
Originally Posted by YoTimes
I reset adaptations using the JB4 (menu 1/7), and switched to map 5. The car was not warmed up yet so I drove a while to get to temp, and to allow the tank to more adequately mix.
Reset Adaptations have moved to (menu 1/4) since G5_ISO_32_9.... just a heads up. I thought I was resetting my adaptations and was only resetting the battery (menu 1/7)

If you already knew....disregard


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Default 03-25-2018, 01:21 PM

Ah thanks for the heads up! I did not know that. I must have missed it in the change log. I'll give that I go and report back
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Default 03-30-2018, 10:41 PM

Hi All,

I reset the adaptations right after my previous post (using menu options 1/4 this time). I drove on and off this week (i work from home so no committed daily commute). Filled up with another around of ~E40 and took a few logs. Before the fill up I returned three codes:
2C32 Lamba probe in front of catalytic converter 2, trimming control
2C6A No Description
2BA2 Terminal 15 deactivation

On Wednesday I did a 3rd gear WOT and right around 5k the boost gauge dropped to around 11 psi from 17. Of course I did not have my laptop to log this event. It felt much better tonight after the fill up, but I have some questions about these logs. No codes after tonight's logs were generated.

It looks like I just wont hit that target 17.5 around 5k. Is this a hardware limitation? I was thinking the BOV was not holding the boost, but it appears to hold earlier in the curve.

Thoughts on these logs in general?

Thanks,
Mike
Attached Files
File Type: csv Pull 1 Map 5 180331_0045.csv (6.9 KB, 53 views)
File Type: csv Pull 3 Map 5 180331_0051.csv (9.9 KB, 35 views)
File Type: csv Pull 4 Map 5 180331_0054.csv (9.3 KB, 36 views)

Last edited by YoTimes; 03-30-2018 at 11:28 PM.. Reason: added codes
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Default 03-31-2018, 11:41 AM

After some research it looks like these codes may be from the down pipe fix I have installed. May that be causing the reduction of boost I was feeling either this week? It did seem to drive better after I cleared those codes. I will keep scanning to see if they pop up again. I assume I didn't get a SES light because of the JB4 clearing. I could be wrong though.

I have had it installed for over a year now no issues. I'm guessing the change in fueling has tripped these codes. Am I on the right track with this train of thought?

-Mike
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Default 03-31-2018, 10:49 PM

Quote:
Originally Posted by YoTimes
After some research it looks like these codes may be from the down pipe fix I have installed. May that be causing the reduction of boost I was feeling either this week? It did seem to drive better after I cleared those codes. I will keep scanning to see if they pop up again. I assume I didn't get a SES light because of the JB4 clearing. I could be wrong though.

I have had it installed for over a year now no issues. I'm guessing the change in fueling has tripped these codes. Am I on the right track with this train of thought?

-Mike
Hey Mike-

1) remove thefix, that should really only be used during certain time- only. Also JB4 won’t auto clear c a t codes

2) I looked at your logs- overall log looked pretty healthy

3) FF is a little high, and WGDC creeps up towards redline- could be a few things, most common, small boost leak that is getting a bit worse (check the usual spots)



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Default 04-01-2018, 08:33 PM

Dave,

Thanks for your reply. I will remove the fix and see how things go. I have a feeling it is my BOV that is leaking, so I will check there first. Hopefully things go well and I will report back my findings.

Have a great week!

-Mike
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Default 04-01-2018, 09:46 PM

Quote:
Originally Posted by YoTimes
Dave,

Thanks for your reply. I will remove the fix and see how things go. I have a feeling it is my BOV that is leaking, so I will check there first. Hopefully things go well and I will report back my findings.

Have a great week!

-Mike
No problem at all, never hurts to do a one over on everything. Not uncommon when you start to turn things up a bit, things that were “ok” or negligible at lower performance levels, pop up.

Have a nice rest of the night



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