DSMLink logs(caution: slow child tuning)

[1992awdlaser]

Originally Posted by LandoAWD

Even worth posting these right now?

Nope...

[LandoAWD]

BLTd the car this Friday. Held up to about 19lbs with no leaks until I blew the tester apart. I'll make another one soon since I bought out AutoZone of all their 2pc metal tire valves.

Back to logging, but I imagine the previous "slider logs" are nearly dead nuts as no changes to the intake system have been made.

[1992awdlaser]

Yeah, I'm sure the fuel trims are still the same.

[LandoAWD]

Ever feel like you're chasing your tail? Found a coupler that didn't leak during the BLT, but was physically loose. Odd or hairspray induced? Who knows.

50 and 150hz logs attached. Gonna get cruise logs tonight or tomm.

[snowborder714]

I would lower your 50Hz slider 6 counts, down to 19%. And you need to get your Hz on your 150 log actually up to 150, not 125

And make sure when you do your cruise log you have MafRAW around 250Hz.

[LandoAWD]

What in the...I swear it was at 148 when I hit f12.

50hz with the slider dropped and another (or first?) 150hz.

[1992awdlaser]

LTFT mid is only activated around 75Hz to around 120Hz. LTFT Hi is a 1G only fuel trims and it is active at 120Hz+ until you exit closed loop operation.

But the LTFT mid value is still somewhat controlled by BOTH the 50Hz and 150Hz sliders since the 75Hz-120Hz values are interpolated inbetween those two sliders. This is why you use Deadtime adjustments in conjunction with changes to the 50 and 150Hz sliders to fine tune the Lo and Mid fuel trims.


Fuel trims look good enough. Leave them alone.

[LandoAWD]

Thanks Pat.

[LandoAWD]

Log from this morning. Boost was right around 21lbs...BOOSTEST is way off.

I'm also noticing that the signal from the WB is all cool until I'm WOT. The A/F on the WB gauge was off the gauge rich, and Link sees it as high 11s.

Make me faster...GO!

[1992awdlaser]

Originally Posted by LandoAWD

BOOSTEST is way off.

I would say so. I hate to say this and I know you will hate to hear it. Your boostest might be that far off from a boost leak after the maf.

First thing to do is lower your 2400hz slider about 10%. Based on the amount of air your flowing (mafraw) you might want to think about setting up a ve table.
createvolumetricefficiencymap [ECMTuning - wiki]

[LandoAWD]

I'll have to read that link a few times...it certainly didn't sink in this time.

Lower the 2400 10%...got it. Leave the other sliders?

[1992awdlaser]

Originally Posted by LandoAWD

Leave the other sliders?

You can either adjust them based off the 2400hz adjustment or you can do it the way I do when a map sensor isn't used. I lower the boost so the mafraw in the 5,000-6,000 range reads what the next lowest(2000hz) airflow slider is. Then adjust accordingly. This way is more accurate but takes more time as you can imagine. You would normally start off with wastegate spring pressure and raise a little as you go but this way will work.

[blcknspo0ln]

I'm a little worried about your timing table being all crazy and your fuel table not being calibrated at all . At 21 psi and pump, should see virtually no knock. IMO I would zero out those timing sliders and have a go at it. Also, try changing AEMWBgaugeR1 to dynojetWB (did we discuss this already? ). I seem to have the most accurate AEMWB input through dynojetWB. Those stupid things are infamous for not reporting correctly in dsmlink. Since you have a MAF-T, have you calibrated it yet ?

[1992awdlaser]

His timing table is pretty smooth Tom. You want to look at the 1g estimates.

[LandoAWD]

I'll back the boost off and try to snag another log. Lotsa people coming into town this weekend.

Should I bother with the fuel table? Ramp it down from high 14s to low 11s? Don't touch it till I log again? Car is certainly running fat...

[1992awdlaser]

You can lean it out a little right now if you want. Take out an even amount of fuel across the rpm range. The air/fuel ratio will change once the airflow sliders are calibrated so don't make a big change.

[LandoAWD]

Right at 13.5-14lbs of boost. A/F slider tweak.

Edit: Yes, I let out to avoid love tapping a slower vehicle merging.

[turbosax2]

Boostest is a lot better now but you can still get it closer. I would move the 2000 and 2400 sliders down to about -16.

[1992awdlaser]

Based on the last log I would bring the 2000hz slider down 2% more and the 2400hz slider down a couple more percent. I wander why it's getting more knock in that log than in the one before it.

[LandoAWD]

Could be shitty gas, I suppose. Stations around here are low and I had to use "Eagles" 93 octane this morning. Plugs are relatively new...think the gap is too big at .28 on BR8ES?