Throttle tuning Ford

[caniggia]

For pre 2015 nothing...
You can find 2014 roush file on forum.

[ELITE]

Anyone else having trouble with the f150 t/b slopes and blend zones?

[caniggia]

File posted by Eric from Roush F-150 2015 had changes put into Mustang 5.0 file. I tried them and they don't work. He copied them wrong or they are wrong or there is different throttle body.
Can you repost original F-150 file without copy data to Mustang tune?

[caniggia]

OK, i finally found out, i was really really close. My throttle gt500 in roush works better than Roush file from f150.
Roush settings are not working correctly, main is TPS A value that causes errors, this in Mustang has to be adjusted to -0.93.
Also Mustang gets anticlunk limits and blocks throttle for 2-3 seconds after decel, so fix to this is raise closed throttle tresh, 1.1 is correct for me, now Roush runs perfect and makes around 670 at crank with perfect divability.

[Johnson Tuning]

anyone have a pre 2015 roush f150 file?
Can a 14 roush mustang file flash onto the f150 pcm?

[caniggia]

Dont try that. I tried last time and stucked on the way...

[Johnson Tuning]

Dont try that. I tried last time and stucked on the way...

Sorry just to clarify, you cannot flash a 14 mustang roush file to a 14 f150 pcm correct?

[caniggia]

I had problem with flashing mustang, same year, different calibration.
I could not licence that then. I had to flash stock with ids first to be able to reflash my tune back

[caniggia]

Update for throttle tuning.

Since i installed gt350 TB together with manifold, i first copied directly data but driving was not fluent and me and customer was not satisfied. Then customer ordered well known SCT tune, because he thought it will be better, but it wasn't, so he lost 200 plus SCT, so finally he came again to fine tune. So i learned more about and will share. This may be helpfull when you get throttle for which you don't have effective area table or in such case when you have data, but they don't work. Just FYI, installing manifold only and stock TB with adapter is working, divability perfect.
So at first i tried as always when i was sure i have correct effective table, i tuned preducted throttle, but it only cured problem partially, then i tried to adjust torque tables, but it had 0 effect.
So tuning predicted throttle i learned one thing about this table. If you have IPC torque errors (tu much tq), lowering values in this table will bring to no tq errors, but new information is, that PCM will not command more throttle opening than it's specified in this table, so for example, so let's say if you make 30 deg angle for 1.5 etc vacuum, and in next step 50deg for 2.5 and if car will meet this cell, it will not command more torque and will not open throttle more than it's in this cell, but this call may be used in for eg 30% of throttle pedal range, so effect is you are pushing pedal, but it's not going faster.
So when you get to the point predicted throttle doesn't help, you need to adjust effective area. To make that, you need to log Scheduled torque and engine brake torque as custom pid (Engine Brake Torque-Scheduled torque). Put that into same histo as effective area table and adjust values in this table this way: If you get positive (more torque than requested) result of this equation, raise values in table, if you get negative values (less torque than requested), lower values. When you will get that dialed in, you can fine tune predicted throttle by logging throttle angle and populate actual values, fine tune may be needed if you feel throttle pedal dead at some points.

So this way i have perfectly running GT350 throttle in GT.

Hope that helps.

[Devildog1325]

Caniggia when you make this histogram for the effective table could you not just divide engine brake torque by scheduled torque to get a percentage and multiply it to the table?

[caniggia]

Caniggia when you make this histogram for the effective table could you not just divide engine brake torque by scheduled torque to get a percentage and multiply it to the table?

You can try, but looks with percentages it will not work, i think there is some more complicated math.

[Devildog1325]

Also I assume you could use this method for the 3v gt's also? The method I use for the 05-10 Cars you tune the predictive throttle table then pretty much inverse it for the effective area.

[caniggia]

Yes, this applies to all Fords.

[murfie]

100*((Engine brake torque - scheduled torque)/scheduled torque) should give you percentage difference, just like the lambda values.

[Devildog1325]

That makes sense. Also the math for that transient issue was spot on within 2 logs it was good to go.

[caniggia]

But that don't reflect torque to throttle percentage, I would divide that by 2

[murfie]

If we start at 100% throttle is related to 100% torque and assume it's a fairly linear relationship. You could multiply the percentage of error by the throttle percentage and get a ratio of the torque error percentage to throttle percentage. Example 4% error at 75% throttle you would apply 3% error. (4*.75=3). -10% error at 25% throttle you would apply -2.5%.

[Devildog1325]

I know there are many different ways to skin a cat but lets say you have throttle angle error and wheel torque error. If you adjust it starting with the Predictive Throttle Table and end up with good throttle angle error and still have some wheel torque error wouldn't you move to the Torque tables to adjust instead of the Effective Area because if you did wouldn't you have to turn back around and tune the Predictive again? Im under the impression that these tables are like the torque and torque invers if you change one you must change the other. Also the reason adjusting the torque tables may not have worked might be because the year model you were trying to tune looks at the Driver Demand torque instead of the Torque table? These are just some thoughts I am not that good yet just trying to wrap my head around things.

[caniggia]

I know there are many different ways to skin a cat but lets say you have throttle angle error and wheel torque error. If you adjust it starting with the Predictive Throttle Table and end up with good throttle angle error and still have some wheel torque error wouldn't you move to the Torque tables to adjust instead of the Effective Area because if you did wouldn't you have to turn back around and tune the Predictive again? Im under the impression that these tables are like the torque and torque invers if you change one you must change the other. Also the reason adjusting the torque tables may not have worked might be because the year model you were trying to tune looks at the Driver Demand torque instead of the Torque table? These are just some thoughts I am not that good yet just trying to wrap my head around things.

All of this things must match, it's not that throttle settings will cure all problems, but no matter if it looks into driver demad or torque tables, it looks first at throttle to calculate flow to archive torque he needs (this is how i see that by observation). This i found by limiting predicted throttle, it won't open more than it's in this table, even if you will have huge amount of torque in TQ management tables.

[Devildog1325]

So It would probably be better to start with the Effective table first then move to the Predictive table to fine tune?