ECMlink Tuning questions - 91 oct

[ErikTande]

Here's my first self tune, I still have a bit of knock to tune out, but I have some questions first. Mods in my profile are current. I'm currently on pump gas, 91 octane at 5500 feet elevation. My three main areas I'm using are MAFComp, OpenLoopMaxOct and TimingMaxOct. I'm shooting for an AFR of 11 at WOT, but I've lowered that to 10.8 in a couple places in OpenLoopMaxOct where I'm seeing knock.


Question #1: My BoostEST is off. My gauge is reading 21, but my BoostEST is almost 25. Is this ok or do I need to fix that? If so, how do I fix it?

Question #2. Assuming I'm not getting knock, can I globally (select all) raise all the numbers in TmngMaxOct until I see knock, and then start selectively bringing them down?

Thanks!







1). Any boost, vac, or exhaust leaks?
No
Boost leak tested 5psi above your max boost with no leaks?
Yes

2). Verified mechanical timing?
Yes

3). Verified base timing?
Yes

4). Ignition system
COP or Stock Coil: Stock
Wire brand and Age: NGK 8 months
NGK-BPR7ES/ .028

If you are having electrical issues, you should follow the troubleshooting method inside the FSM (that you

5). Motor health (Compression Test)
n/a

6). Performed basic throttle body adjustments?
Idle Switch: Yes
Throttle Cable: Yes
TPS: Yes
BISS: Yes

7). Compression ratio


8). Any known bad sensors or brittle wiring?
No

9). Any DTC/CEL codes?
No

10). Electrical system
Car off (not running): 12.4 volts
Car running: 13.9 volts

11). Base fuel pressure and injector values
Base Fuel Pressure: 37
Injector Size (cc/min): 1000cc

12). Properly calibrated and configured wideband sensor
Sensor Brand: PLX
Calibration Date: Sep2014

13). Type of fuel
Type: 91 Octane

14). Watched ECMlink how-to videos?
Yes

 

[blktalon3]

Boost and boostest should be the same between 5000 and 6000 rpm

Here's my first self tune, I still have a bit of knock to tune out, but I have some questions first. Mods in my profile are current. I'm currently on pump gas, 91 octane at 5500 feet elevation. My three main areas I'm using are MAFComp, OpenLoopMaxOct and TimingMaxOct. I'm shooting for an AFR of 11 at WOT, but I've lowered that to 10.8 in a couple places in OpenLoopMaxOct where I'm seeing knock.


Question #1: My BoostEST is off. My gauge is reading 21, but my BoostEST is almost 25. Is this ok or do I need to fix that? If so, how do I fix it?

Question #2. Assuming I'm not getting knock, can I globally (select all) raise all the numbers in TmngMaxOct until I see knock, and then start selectively bringing them down?

Thanks!

 

[ErikTande]

Ah, OK, I think they were pretty close around 5500 RPMs, I'll double check on my next pull though.

 

[BoostedBeaver]

You where prompted to answer some questions (actually given a list to copy and paste) when you submitted the new thread. Without following these request, you are not likely to receive much help.

http://www.dsmtuners.com/threads/want-log-file-advice-follow-this-template.487240/

 

[ErikTande]

You where prompted to answer some questions (actually given a list to copy and paste) when you submitted the new thread. Without following these request, you are not likely to receive much help.

http://www.dsmtuners.com/threads/want-log-file-advice-follow-this-template.487240/

Updated

 

[BoostedBeaver]

Question #2. Assuming I'm not getting knock, can I globally (select all) raise all the numbers in TmngMaxOct until I see knock, and then start selectively bringing them down?

Technically you could, but I have had the best success targeting the used cells inside the timing table that I actually use, adjusting them and blending the table. You should track your data log, find the path of your pull and adjust the timing while at full boost. You can also tune spoolup and the lower RPM range, just remember that your knock sensor has variables (RPM and Throttle Position). Of course, these changes need to be smooth, so be sure to blend the table.

As for the log, I can't view it at work but I will take a gander when I make it to the house.[DOUBLEPOST=1416950795,1416943218][/DOUBLEPOST]

Here's my first self tune, I still have a bit of knock to tune out, but I have some questions first. Mods in my profile are current. I'm currently on pump gas, 91 octane at 5500 feet elevation. My three main areas I'm using are MAFComp, OpenLoopMaxOct and TimingMaxOct. I'm shooting for an AFR of 11 at WOT, but I've lowered that to 10.8 in a couple places in OpenLoopMaxOct where I'm seeing knock.


Question #1: My BoostEST is off. My gauge is reading 21, but my BoostEST is almost 25. Is this ok or do I need to fix that? If so, how do I fix it?

Your BoostEST is actually 27.6 tappering to 19.5 when you input the proper elevation into the boostest preferences.

I noticed that you are not logging a map sensor. I am guessing you are looking at a mechanical boost gauge, guessing the RPM, and trying to compare those numbers? You are assuming that the mechanical gauge is accurate and that you are able to accurately capture the boost numbers while driving. Its a good check and balance but a MAP is where this feature is really useful.

Start with Airflowperrev. It is at .30 when averaging a large idle area. You should adjust the 50hz slider to get this number down to .25 at idle with the car at operating temp with no electronics on. Watch your combined fuel trims and adjust the deadtime to keep them in line.

Since your car averages 1052rpm under a commanded 1050rpm, we can assume your BISS is properly adjusted but capture ISCposition during your next log.

Wideband and EST line up well. Maybe adjust the 1800 to 2000 MAFcomp to make a slightly richer mixture. This is just personal preference as I would rather run a tad richer compared to leaner but its less than 1 percent so its very minimal and really nothing to worry about.