Copying Sport Mode shift tables to Normal mode

[Robottrainer]

Weird stuff. I have been mucking around over the past while with the shift tables in Normal and Sport. I got it pretty good but I wanted to delay the upshift into 10th and down shift to 9th a little more. So I started playing around with the 9-10 shift area. And then I thought, why not just do it in Sport and copy the entire table into Normal. And then I thought again, well if you are doing that you should probably do the same for the coast down and downshift tables. Essentially normal behaves like sport with regards to the shift schedule. Not quite.

It seems something goofy happens when you copy the coast down from Sport to Normal. You have to come to a complete stop or what I believe happens is stays in either 2nd until you stop and then drops to first. If you dont stop completely there is a split second where it seems to be both in 1st and 2nd before it drops to 1st with a slight clunk. Switching to sport mode, this doesnt happen despite having the same tables as Normal.

I went back and set the normal coast down to OEM. Problem goes away and it all works fine. I wonder whats different about Normal that causes problems if you use Sport mode coastdown.

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[blankman]

This actually describes exactly what seems to be happening with my car. Sorry its way off the topic of the shift tables. I've been trying to figure out exactly how to describe what was happening. Im curious if this also happens to me in sport mode. I Will have to confirm for myself if It does.

I don't mean to hijack this thread, but im curious if mine is an underlying issue with the transn or if its just the way its programmed.

 

[Robottrainer]

This actually describes exactly what seems to be happening with my car. Sorry its way off the topic of the shift tables. I've been trying to figure out exactly how to describe what was happening. Im curious if this also happens to me in sport mode. I Will have to confirm for myself if It does.

I don't mean to hijack this thread, but im curious if mine is an underlying issue with the transn or if its just the way its programmed.

Has it always done that? does it change in different modes?

 

[blankman]

Since I've owned it yes. I have done a relearn through forscan. Different modes I'm not sure on. I've gotta pick up my nephew from school in 45 mins and I'll just deal with the mud in the driveway so I can test it in sport mode. It only ever happens pulling into my driveway at a low speed as to not scrape because im lowered.

If I keep the throttle open a little more than I'd prefer pulling in, its not as bad but still happens, just a little further up my driveway and not as harsh.

Really appreciate the response btw.

 

[blankman]

So it does the same thing in sport mode. It wasnt as harsh , possibly due to the transmission temp being higher ?

 

[Pistol_91]

It probably has to do with sport mode using alt 1 tables and normal mode using base tables. You should be able to change normal mode to use alt 1 tables as well but I don't recall which table that is and I'm not even sure if this would fix the coast down behavior.

 

[Robottrainer]

It probably has to do with sport mode using alt 1 tables and normal mode using base tables. You should be able to change normal mode to use alt 1 tables as well but I don't recall which table that is and I'm not even sure if this would fix the coast down behavior.

Actually, I have sport, normal and track as well as LID set to Alt 0. Alt1 causes an intermittent flare 3-4 and sometime 4 -5. Ive modified pressure tables and inertia tables it shifts firm in all modes. using Alt2 in anything other than drag causes very harsh 1-2 shifts. it just seemed odd that having the same shift characteristics and the same tables creates different results depending on the mode

 

[Pistol_91]

That's Ford logic for you. Sometimes you get strange results. Best to start over and do little changes at a time to see the affects.

I use Alt 1 but don't have flaring issues. Changing too much shit will cause flaring. Like raising pressure too much.

 

[Robottrainer]

I just set th

That's Ford logic for you. Sometimes you get strange results. Best to start over and do little changes at a time to see the affects.

I just set the normal mode coast down table to oem. now its fine

 

[engineermike]

I pulled up a random 2020 Roush Mustang file and checked these tables. The coastdown downshift tables are identical in this file, between sport and normal modes. However, the "normal" downshift tables compare as follows:

Based on this table alone, it wouldn't surprise me to see the behavior you're seeing since it never actually triggers a 2-1 or 3-1 downshift on the sport table. My *guess* is that this downshift is triggered by some other table or parameter that is set up appropriately for sport mode but not normal. There are dozens, maybe hundreds of other possibilities that could initiate this shift in sport but not normal, such as min speeds for downshift, max launch gear, etc.

 

[Robottrainer]

I pulled up a random 2020 Roush Mustang file and checked these tables. The coastdown downshift tables are identical in this file, between sport and normal modes. However, the "normal" downshift tables compare as follows:

Based on this table alone, it wouldn't surprise me to see the behavior you're seeing since it never actually triggers a 2-1 or 3-1 downshift on the sport table. My *guess* is that this downshift is triggered by some other table or parameter that is set up appropriately for sport mode but not normal. There are dozens, maybe hundreds of other possibilities that could initiate this shift in sport but not normal, such as min speeds for downshift, max launch gear, etc.

Actually its the coast down that has the issues. It seems sport mode is pretty much all 0 revs/second (-600 to 0) vs OSS. The way I understand it at whatever the speed change equals vs the drive shaft speed will initiate a downshift. Alot of the sport table has 0 OSS which I assume means a downshift wont happen. At 0 revs/s and 400 oss it will downshift from 2 to 1.

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