Sometimes it's that 10% you left that's the cause.Originally Posted by 04silverado6.0
I'm 99% sure the huge flare up is the stall saver working. In effort to save it from stalling it's causing that big flare. You want to eliminate that first. I'd zero it out so it's not working at all.
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What sucks about this is even if you go back to stock people will still blame your tuning ability if there are problems. What I see is this tune started stock at some point, and you've had to do more than typical to get it to run.
I still think the torque converter is what's making it so difficult. If edcmat can't make it work then enough said.
Honestly if i started back with a stock file i would be using some of these tables for my startup tune just as i do anything else.
I have taken this back into my own hands for now. I have a trick to give a little extra dashpot function i use on difficult combos i am going to try. The good thing is the extra air is present all the time, no tps entry or mph requirements.
Idk. The converter is slipping under higher load and grabbing under light load. Will tuning be sufficient to address both problems, or will it require hardware solutions?
I used valvoline dex/merc in the blue bottle. I wonder if a bottle of lubegard will change anything?
Maybe.
Insufficient pressure regulation would explain too little release and apply. The sonnax regulator sounds more promising. Thing is to fix it correctly they say to recondition the valve body bore.
https://www.sonnax.com/parts/2458-tc...ator-valve-kit
https://www.sonnax.com/parts/2467-reamer
There's also the TransGo route.
https://transgo.com/product-details/...size-pr-valve/
https://transgo.com/product-details/...ulator-reamer/
Is there a transmission specialist in your area? They should know how to check pressures and run it through its paces.
Some of those settings are dead wrong.
It's not the converter pulling the idle down. It's all "in the tune".
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Well, the trans is showing overfilled and my shift linkage broke. I guess this is postponed.
Ed I really don't understand what you mean about the torque converter not being a problem. I think you could help return to idle by setting up the idle parameters and giving some rolling idle, but the slip under load?
Here's two shots pulled from my previous posts, #81 and #88. First is what looks like converter drag. Second there is slip during lockup as throttle (torque) increases, to the right of the cursor.
slip.png
What are your thoughts? Learn me on this. I'll say the words lol
Something else, i added 4% to the 400rpm ve column which made it much worse. I set it back to where it was and took out a few percent and did some interpolation and it was much better. Dont know when i will have it going again but the trans will be at the correct level this time.
Even after ive set everything stock under idle and started over im not sure what else could be wrong. The ve was done steady state on a loaded dyno so any valleys or ridges are just what it wanted. The only tables that werent stock were the proportional rpm and intergral rpm. Stock throttle cracker table cut in half. I guess going from a 5.3 to a cammed 11:1 6.0 doesnt require changes to idle airflow tables?
The slip at cruise speed I'm not worried about that's not going to interfere with the idle. The slip at 1 MPH might be normal. It is crawling along. Seems maybe a little tight but I don't think that's it.Ed I really don't understand what you mean about the torque converter not being a problem. I think you could help return to idle by setting up the idle parameters and giving some rolling idle, but the slip under load?
Here's two shots pulled from my previous posts, #81 and #88. First is what looks like converter drag. Second there is slip during lockup as throttle (torque) increases, to the right of the cursor.
slip.png
What are your thoughts? Learn me on this. I'll say the words lol
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"Even if I"
"I already tried that"
Why would you put all the tables back to stock except the prop and integral RPM??? What is your basis for changing those?
Why would you cut the throttle cracker in half?
If you're not changing the throttle body, why would you change a bunch of throttle body PIDs?
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The rpm tables need to be raised so the idle is not clamped down with the cam lope, that will make a throttle body overreact. Even in the stock e38 trucks the proportional is set to 50rpm and the integral at 15rpm. Even with the throttle cracker halved i do not like the cruise control feeling. In a reponsive engine with more compression a little goes a long way.
Who's the one here with an over reactive throttle body?
Guess how often I change the prop and integral RPM?
You can't at all compare GEN3 and GEN4 idle control. That's ridiculous.
Last edited by edcmat-l1; 11-26-2024 at 02:23 PM.
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My biggest suggestion to you is quit thinking you know what works and why. Start working from base files with the bare minimum changes made. Completely change your approach.
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Really doesn't hurt to try does it?
Im not so sure Ed know how a pid controller works. I have at one time copied pid tables from a ss truck which did not help either.
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