09-16-2017, 04:15 PM | #1 |
First Lieutenant
122
Rep 352
Posts
Drives: 2003 E39 M5 + 2013 F10 M5
Join Date: Mar 2017
Location: Santo Domingo, Dominican Republic
|
Flash TUNE - Dyno Inside - Help
Ok, so I have a 2013 F10 m5 with about 48,000 Miles. I shipped off ECUs to Awesome and reputable tuner (well known on this board). They sent my ECUS back, and then flashed my car with their tune (22+ psi boost etc etc). This tune based on others who have used them, delivers roughly 640-660 WHP + 650+ WTQ.
I have been dynoing the car here and there trying to determine why I am not hitting these numbers. So, I will post this here. I am not mechanically inclined, so, please bare with me. Here are my concerns: 1) Dyno guy says I am running too Lean. He says I should be closer to 12.5-13 AFR. As you can see, I am almost at 16 in this dyno pull. All other pulls show I am close to 16 as well. How can this be corrected and can this result in considerable power loss? 2) Dyno guy says the "WAVES" in the power curves seem to be something wastegate related. 3) The tuning company after showing them a previous dyno pull (which looks pretty much identical to this one) said the following: "your wastegate is at 99% trying to build boost. Seems like either one of these two things: you have issue with vacuum going to the turbos, boost leak or somethign jamming the actuators. View dyno sheet attached. HELP ME GET TO the MAGIC 650/650 numbers. How can my AFR be corrected. Please instruct me. By the way, I have logs too if someone thinks this can help. thanks! |
09-16-2017, 04:22 PM | #2 |
First Lieutenant
122
Rep 352
Posts
Drives: 2003 E39 M5 + 2013 F10 M5
Join Date: Mar 2017
Location: Santo Domingo, Dominican Republic
|
I can say that Charge pipes were the only mod on the car (for meth). But I am not running the meth now for the sake of seeing what the TUNE alone yields as far as performance. This is the only time something has been installed that comes close to the turbos/actuators. FYI
|
Appreciate
0
|
09-16-2017, 06:19 PM | #3 |
F10 1/4 WR: 9.9s / 142.5mph 1/2 WR: 175.5mph
1087
Rep 1,968
Posts |
Ask your tuner to log the car parameters on the dyno else people here can only guess. Bizarre a tuner would speculate wastegates and not have any logs to diagnose the issue.
|
Appreciate
0
|
09-16-2017, 06:36 PM | #4 |
Captain
243
Rep 881
Posts |
I think we have the same tuner. Here's a resent dyno showing my AFR being about 12:1. Your graph does show a pretty lean condition. What are all of your mods again? What type of fuel in your country?
__________________
2014 "AW/SO"me M5
Mission Performance/3.5 Bar RK Autowerks/ CSF ICs SSP Spec-R KW V3/ Corsa Axle back |
Appreciate
0
|
09-16-2017, 07:02 PM | #6 | |
badgtr
62
Rep 132
Posts |
Quote:
|
|
Appreciate
0
|
09-16-2017, 07:06 PM | #7 |
First Lieutenant
122
Rep 352
Posts
Drives: 2003 E39 M5 + 2013 F10 M5
Join Date: Mar 2017
Location: Santo Domingo, Dominican Republic
|
Hi there, yes, I showed him three logs from 3 pulls on the dyno. His responses (what I mentioned in my first post) was based on what he saw in the logs. So He is saying that he checked the logs, after the pulls on the dyno and saw that "my wastegate was at 99% trying to build boost." He said that on my last dyno run (a couple weeks ago), i had 1.4bar, which is low for a 200 load request. Somethign is preventing the car from building boost. (could be vacuum leak, wastegate jammed, boost leak).
|
Appreciate
0
|
09-16-2017, 07:09 PM | #8 |
First Lieutenant
122
Rep 352
Posts
Drives: 2003 E39 M5 + 2013 F10 M5
Join Date: Mar 2017
Location: Santo Domingo, Dominican Republic
|
I only have a custom mufflers (axelback). Everything else is stock. I do have meth injection, but it is disabled to not skew actual tune numbers. This is what I mean, I saw that sheet you sent, and keep pointing at AFR as a potential culprit. I put 50/50% 93octane (which is really about 91), and 100 VP racing fuel. Balances out to abou 94-95octane. So fuel should not be the issue.
|
Appreciate
0
|
09-16-2017, 07:11 PM | #9 | |
First Lieutenant
122
Rep 352
Posts
Drives: 2003 E39 M5 + 2013 F10 M5
Join Date: Mar 2017
Location: Santo Domingo, Dominican Republic
|
Quote:
I still keep looking at AFR though. Can this AFR be adjusted via adjustments in my flash tune? If this is adjusted, to more suitable levels, is it possible the car could yield an extra 40-50WHP? |
|
Appreciate
0
|
09-16-2017, 07:19 PM | #10 | |
badgtr
62
Rep 132
Posts |
Quote:
|
|
Appreciate
0
|
09-16-2017, 07:21 PM | #11 | ||
First Lieutenant
122
Rep 352
Posts
Drives: 2003 E39 M5 + 2013 F10 M5
Join Date: Mar 2017
Location: Santo Domingo, Dominican Republic
|
Quote:
|
||
Appreciate
0
|
09-16-2017, 07:22 PM | #12 | |
Captain
243
Rep 881
Posts |
Quote:
OK, I'm going to ask the obvious, but are the vacuum lines to your new mufflers plugged?
__________________
2014 "AW/SO"me M5
Mission Performance/3.5 Bar RK Autowerks/ CSF ICs SSP Spec-R KW V3/ Corsa Axle back |
|
Appreciate
1
Lerxst M4142.00 |
09-16-2017, 08:08 PM | #14 | ||
First Lieutenant
122
Rep 352
Posts
Drives: 2003 E39 M5 + 2013 F10 M5
Join Date: Mar 2017
Location: Santo Domingo, Dominican Republic
|
Quote:
|
||
Appreciate
0
|
09-16-2017, 08:10 PM | #15 | |||
First Lieutenant
122
Rep 352
Posts
Drives: 2003 E39 M5 + 2013 F10 M5
Join Date: Mar 2017
Location: Santo Domingo, Dominican Republic
|
Quote:
|
|||
Appreciate
0
|
09-16-2017, 08:43 PM | #17 | |
First Lieutenant
122
Rep 352
Posts
Drives: 2003 E39 M5 + 2013 F10 M5
Join Date: Mar 2017
Location: Santo Domingo, Dominican Republic
|
Quote:
Sparkplugs are brand newwwww and gapped to .019 just as tuner suggested. Can sparkplugs gapped that close cause afr issues? Again, can afr be corrected via tune adjustment? |
|
Appreciate
0
|
09-16-2017, 09:01 PM | #18 |
First Lieutenant
122
Rep 352
Posts
Drives: 2003 E39 M5 + 2013 F10 M5
Join Date: Mar 2017
Location: Santo Domingo, Dominican Republic
|
Here is the log for the Dyno Pull
|
Appreciate
0
|
09-16-2017, 09:40 PM | #19 |
Banned
3322
Rep 8,083
Posts |
uhm, first how about you reveal name of tuner.. dont hide them. Review whether positive or negative can help others make decisions regarding tunes. Customer service is more important than anything
And also, good on you for deicing on no meth. A flash tune, and tires is all this car needs. |
Appreciate
0
|
09-16-2017, 10:44 PM | #20 | |
Captain
243
Rep 881
Posts |
Quote:
Up to OP to name tuner, but I think he's using same as I am. |
|
Appreciate
0
|
09-16-2017, 11:04 PM | #21 |
First Lieutenant
122
Rep 352
Posts
Drives: 2003 E39 M5 + 2013 F10 M5
Join Date: Mar 2017
Location: Santo Domingo, Dominican Republic
|
I understand that if there is hardware issue, Flash tune will not correct this. But logs show I am pretty close to Full boost (around 22). Chargepipes area is sealed correctly and has been inspected. (I guess I can do a boost leak, but again, log shows car is getting up to boost).
|
Appreciate
0
|
09-16-2017, 11:16 PM | #22 | |
Private First Class
30
Rep 105
Posts |
Quote:
|
|
Appreciate
1
Lerxst M4142.00 |
Post Reply |
Bookmarks |
|
|