Working on a explorer st. Anyone care to check my file and see how its going? Approximately where am i hp wise on the tune and how much is left safely? Also, would like to get antilag working with the trans brake. Running 93 only.
Working on a explorer st. Anyone care to check my file and see how its going? Approximately where am i hp wise on the tune and how much is left safely? Also, would like to get antilag working with the trans brake. Running 93 only.
Here is another adjustment. Didnt seem to change much.
Ive uploaded my bastard tune from sirius, sepp and some trans changes i did. check it out
20ExplorerST - SEPP+JSE - Skip Shift disabled - BOSS TUNE.hpt
Last edited by pooleo; 10-21-2024 at 07:00 PM.
I appreciate it. The tuning is on hold temporarily.
I don't have the definition fine so I cant open the tune, but off the log, here's a few things I notice:
Give yourself more fuel, especially up past 5k.
As for boost on 93, you're probably about at the limit.
HP has a great Speed Density calculator, that car will definitely benefit.
With SD + more WOT fuel, could squeeze some more boost or timing if you'd like, but you're close.
Not sure if you've done any trans stuff, seems pretty quick, but you can usually about half the torque source 7 timers and reduce desired overall slip by ~20% and get good results. Might need to add some oncoming pressure then.
On pump, you can also usually retard down-low exhaust cam, and up high intake cam for some better flow to work with.
You should log both desired/actual intake and exhaust cam timings for both banks, Charge Air Temp, and Torque Source.
Don't know much about HP's antilag or how long the transbrake will last. I believe it's just engaging D+R when enabled.
I appreciate the responses. I ended up disabling the trans brake for now. I did make some slight adjustments to the trans and it became very rough quickly. This one shifts pretty firm as it sits.
Here is the last tune and log. I am pretty satisfied overall. I would like to know what airflow source limit-popcorn is.
Popcorn is LSPI tables for these. LSPI and Exhaust inverse will usually need to get raised a little bit. Can probably bring anything 3k rpm and up to 2.1 and it should feel a bit more torquey in those regions.
For trans stuff, for the most part, only adjust your desired overall slip, not the other desired slip tables, things can go south quick if you don't nail those timers. Try like 10% less than stock across the whole overall desired slip table, any area that is 150ms or less leave stock.
Here is the latest. Keep hitting airflow limit souce: exh temp protection. Cannot get rid of this.
Max out table 44553
I appreciate the response. Thing pulls good. Did just have the downpipes replaced under warranty for cracking and then blowing the flex pipe off, and a tailpipe snap off the same week while installing the thermal exhaust. Pipe coming out of the large muffler was cracked and leaking badly, fell off in the floor prying the hangers off. I can see the boost is down slightly with the new catback. Probably could add a couple degrees advance but will probably leave it as is for the time being.
I'd leave the spark timing to the ECM, it's already pulling a little timing as it is. Adding more timing will just make the knock control work more, it'll add more timing if it can anyway.
Looks like the next step is opening up the injection window more (#7719, probably bump it to 265 or 270) and maybe raise cylinder pressure limits a few degrees in the top load (#44616), after that you'll probably be on or super close to torque model load clip (will have to expand the engine torque tables to support more load).
Still hitting the injector limit but it seems to be holding more map kpa at higher revs. Im not hearing any audible knock so im guessing the KR shown is from something else.
You remind me when years ago I did headers job and BMR motor mount then I start getting knocking in logs, months of test and smoke leak test and I couldn't find anything, one day I left the car and lay under it start just looking to find the motor mount lower metal bracket is in the K member, the guy in the shop dropped it and just left it there clicking day and night
Simple... Successful... Intelligent...
Usually if you can hear knock by ear, it's already doing piston/combustion chamber damage, the knock control system is much more sensitive... Unless you're wearing an old school set of det-cans (headphones for listening to knock).
Max injection angle could be increased more, I have it at 260 on my Mustang, there are other tweaks that can be done as well.
Ive never had a gm show knock on the scanner without audible pinging unless it was false knock. I do have a plex knock monitor but it is nearly useless in a street setting. Even range rover tuning i would get audible knock with 2* too many. I can say this is my third ford. Tuned a paxton 3v, 2021ish year 6.2 superduty, one 7.3 powerstroke but that is different.
Gen4 and Gen5 GM are set up with higher ignition timing and hyper sensitive knock sense. Quite a lot different than Gen3 GM. With Gen4 or 5 if you pull timing until the KR goes away you give away a noticable amount of power, responsiveness, and fuel economy.
On the Ford side, with Ecoboost I usually don't hear it but I did go overboard on my Expedition once getting very audible knock a couple of times before I realized... Thankfully it survived.
Thanks to Seishuku and a few other very helpful tuners on here I keep learning.
I am pretty happy with the way this turned out. Runs excellent. I appreciate everyone that helped.
Bring "max inj. angle" 7719 to 290deg, that's the most I've been able to squeeze out of these, never had an issue. Might help out a little.Originally Posted by 04silverado6.0
Still can throw more fuel at it if you'd like, these cars love lots of fuel under load. You can easily target down to a .77-.79 lambda on these.
I believe ford sets up the ecoboost's sensors under stock, standard conditions to start pulling timing about 4deg before actual knock is expected to occur. Many big tuners on the Focus St platform especially would target around 4deg of "knock" on race tunes. It's a predictive and reactive system.
I'll get my hands on someone's device to get the definition file and I'll send you a file to try soon. You're pretty close now, but there's a couple more things you might like. Better to send in a file. Mainly driver demand.
I will try those changes. I have a c10 on the rollers so no time to play with the ford for a couple days.
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