[Spoolin335]

This is the first time i have ever logged anything so i hope i have the right information selected.

I have the PROcede V5 on 6-14 maps.
Mods are DCI/FMIC/Exhaust/BOV

I did these runs with the preset parameters on map 1. First log is 3rd-4th gear pull. The second log is a 3rd gear pull.

The logs look good to me, i just wanted a second opinion.

What can i start to increase to get more power? It looks like i am only boosting at 14psi right now. Can i start to lower the ignition correction? What about boost response? and the Start boost numbers? can i increase these..

Ill play with the traction once i get all the power settings dialed in.

Thanks guys!

[dzenno]

why not load the latest? that AFR down low needs some cleanup...why doesn't it hit 12 immediately? goes rich, then lean, then rich then sort of settles

[Spoolin335]

I didnt load the latest because i have been having good runs on the 6-14 maps.
Either way, i have no clue what to adjust to fix that little blip in the AFR down low. Any suggestions?

Totally new to adjusting the tuning settings.

[OpenFlash]

Originally Posted by dzenno

why not load the latest? that AFR down low needs some cleanup...why doesn't it hit 12 immediately? goes rich, then lean, then rich then sort of settles

Are you really suggesting that something is wrong with his AFR logs?

[dzenno]

At the onset of WOT yes...its not an issue at 12psi bit he's looking to go higher...are you saying that initial swing in AFR is great if he runs high boost? What AFR do you get post shift or at part throttle + high boost? Just needs some cleanup through tuning IMO, at least I know I would like to not see it on my car

[enrita]

Load the latest with autotuning. For more power put dps and meth (like the pwm kit for example)

[OpenFlash]

Originally Posted by Spoolin335

I didnt load the latest because i have been having good runs on the 6-14 maps.
Either way, i have no clue what to adjust to fix that little blip in the AFR down low. Any suggestions?

Totally new to adjusting the tuning settings.

I don't think you should fix anything. There is definitely more power on the table looking at your ignition advance curves. Go ahead and run map2. It will target 1psi higher boost and will be worth another 10whp or so. As it is, looks like it's driving well. Logs are nearly textbook.

[OpenFlash]

Originally Posted by dzenno

At the onset of WOT yes...its not an issue at 12psi bit he's looking to go higher...are you saying that initial swing in AFR is great if he runs high boost? What AFR do you get post shift or at part throttle + high boost? Just needs some cleanup through tuning IMO, at least I know I would like to not see it on my car

I think I've explained this before when you brought this up. I'll try it again but this time with a graph that illustrates it clearly using a Rev2 unit (like the OP) at idle (when the close loop fuel control system is the slowest and easiest to track).

When you bias a wideband signal to enrich or enlean the target AFR, you tell the DME that it is running richer or leaner than it actually is. The DME recognizes this AFR error and responds by increasing or decreasing fuel injection volume. In the log below, fuel injection volume is nicely represented by CAN Fuel Trim. Also logged below is the wideband bias effect. When it is set to 44%, the nominal target is 14:1. When it goes to 0%, the nominal target is 12:1. You can clearly see that when the Procede induces an AFR target drop (goes richer), the DME instantly follows up with an increase in fuel injection volume/fuel trim. When the AFR target jumps upwards (goes leaner), the DME responds with a reduction in fuel injection flow/fuel trim.

However, you can clearly see that for a brief moment, the CAN Actual AFR reading spikes lean (circled). This is a result of the time it takes between DME response to a perceived lean condition and the perceived lean condition itself as well as the timing of the event with respect to the 10hz CAN logging rate. However, as you can see with the injection flow/fuel trim, there is no actual lean condition since at no time does fuel flow decrease or RPM/load increase.

This logged lean speak has really never been a concern for this reason. But if it continues to be, it can easily be filtered out through a firmware update. However, I'm not a fan of filtering things. I'd rather understand it instead.

[Joshboody]

^^^ nice visual.

Shiv, How is the open loop fuel added by the procede? My first thought is intercepting rail pressure to increase it.

[OpenFlash]

Originally Posted by Joshboody

^^^ nice visual.

Shiv, How is the open loop fuel added by the procede? My first thought is intercepting rail pressure to increase it.

Your first thought is spot on. The DME has a fuel pressure compensation for rail pressure. We take advantage of that.

shiv

[dzenno]

1) I don't "like" that wobble in AFR at the onset of WOT

2) Its not just wideband bias that shows there. Plug an LC-1 in and you'll see the same wobble in the true AFR graph

3) Given I said I don't "like" the AFR wobble, realize I didn't say its "bad", definitely not at 12psi and stock turbos...It won't blow up anyone's engine, I just prefer hitting 12 when the tune is set to hit 12 without that initial swing

4) These are just my opinions, everyone has theirs...mine are limited to the knowledge I've gained ONLY on this platform and in the 3 years I've been with the N54...I do read quite a bit on this topic as its my hobby and have done tons of logging on the available n54 tunes to date, enough to know what I appreciate and don't appreciate...

5) I appreciate all feedback from all experienced tuners especially those that have worked on the N54 for a long time and contributed their valuable findings/work on this and other forums. However, I don't stop there when it comes to information/feedback on tuning. When I question things such as the above AFR wobble I'm not trying to stir shit, fuck that I'm trying to push for further refinement (e.g. PWM meth (much refined) vs PPS)

6) I have NOT "tuned" a single car professionally as that is not what my career is about. I'm a software development architect who at this point can't have enough of the N54 still after 3.5 years with the car

7) This is also my last post on my "thoughts" on the procede features/functionality. I am no longer running the tune and I see nothing to be gained/lost personally by contributing in these threads. Enjoy your tunes ppl

[Spoolin335]

Originally Posted by shiv@vishnu

I don't think you should fix anything. There is definitely more power on the table looking at your ignition advance curves. Go ahead and run map2. It will target 1psi higher boost and will be worth another 10whp or so. As it is, looks like it's driving well. Logs are nearly textbook.

So could i start to lower my ignition correction value down from 100% to get some more power? I have run Map 2 without any problems as well. I plan to increase the boost aswell if the logs look good, but i want to get the most out of each PSI i currently have.

I dont want to get dp's or a meth kit just yet, i still have warranty and i dont want to be taking that stuff out every time i have to go in for anything major.

[Jeff@TopGearSolutions]

Originally Posted by Spoolin335

So could i start to lower my ignition correction value down from 100% to get some more power? I have run Map 2 without any problems as well. I plan to increase the boost aswell if the logs look good, but i want to get the most out of each PSI i currently have.

I dont want to get dp's or a meth kit just yet, i still have warranty and i dont want to be taking that stuff out every time i have to go in for anything major.

You should just upload the new maps with autotune beta. I'm confident you will like those maps just as much as your current maps and not have to guess where to place your settings.

http://procedetuning.com/BMW/n54/dow...downloads.html

[Syndicategt]

If you have access to race gas, or 94 Oct + meth, you can try dropping the IC to 0%. If you are running 91 oct, just keep it at 100%.

[enrita]

Originally Posted by Jeff@topgearsolutions

You should just upload the new maps with autotune beta. I'm confident you will like those maps just as much as your current maps and not have to guess where to place your settings.

http://procedetuning.com/BMW/n54/dow...downloads.html

this to start with

[Bme30]

I have wondered the same thing. Always want more power with some dialed settings. My only concern it that when I have auto tuning turned on I felt (butt-Dyno) the car was slower, or had some somewhat reduced power. I would like to know if there are any tuning tricks.

[Spoolin335]

Ok so i did some more logs with the boost up a bit. I kept the maps the same as the old logs to keep as much consistent as possible.

First log is with 15 psi which seems to look good,
The second log is at 16 psi and it doesnt look near as good. The ignition advance is jumping all over the place and the throttle plate looks like it cut back for a brief second.

Is there anyway to safely run 16psi on 91oct and just a FMIC/DCI/Exhaust?
Meth and DP's are not in the future till maybe next summer.

Also when i want to run race gas (MS109) what can i up the boost to?