Question for guys who actually have the the Roush Kit

[Stymee]

Mine and 100mphclub’s logs showed torque source 7 at those mph’s. That is a TCU rpm limiter. Pretty sure you all will be the same. Probably also explains why manual cars are not seeing these?

Do u think the 3.55 gear causes this problem vs 3.15 because of the gear your in before the shift based on rpm, mph?

 

[brucelinc]

What is the purpose of the tcu rpm limiter? Why doesn't it rear its ugly head in the lower gears?

 

[Jmtoast]

Mine and 100mphclub’s logs showed torque source 7 at those mph’s. That is a TCU rpm limiter. Pretty sure you all will be the same. Probably also explains why manual cars are not seeing these?

Was there a trigger? Any idea what caused it?

 

[Zinc03svt]

Was there a trigger? Any idea what caused it?

No clue why except for possible transmission protection. As I had stated earlier some tuners actually lock out 7-10 on their tunes. My tuner said he had to manually go into the code to remove them and there where a bunch in the higher gears.

 

[Stage_3]

I had never heard of it on the Roush tune until jmtoast brought it up. Zinc03svt seems to be most familiar with it and knows what causes it.

Both on some. Another poster datalogged it on phase 1 about a year ago. Said it was speed limiters. I tested it and saw the same thing but didn't have a way to verify that it was speed limiters.

Mine and 100mphclub’s logs showed torque source 7 at those mph’s. That is a TCU rpm limiter. Pretty sure you all will be the same. Probably also explains why manual cars are not seeing these?

Thanks guys.
Great,.......just on the A10 cars.

 

[Stage_3]

Just a quick question here. (Forgive me if it's been asked or covered already.)
When taking your car to the drag strip or Mexico, are you guys using the paddle shifters to shift the transmission or letting the transmission shift itself?
The reason why I ask this is because the GT500 guys were having issues as well and are using the paddles to shift down the track with better luck. (I know they are 2 completely different transmissions.) Just shooting from the hip here.

 

[hlfbkd420]

Just a quick question here. (Forgive me if it's been asked or covered already.)
When taking your car to the drag strip or Mexico, are you guys using the paddle shifters to shift the transmission or letting the transmission shift itself?
The reason why I ask this is because the GT500 guys were having issues as well and are using the paddles to shift down the track with better luck. (I know they are 2 completely different transmissions.) Just shooting from the hip here.

Nope.. I let the car shift itself. Whenever I shift it on my own I manage to redline it

I personally tested it again the other day and my car shifts right about 120mph and 7k RPM. No hanging or issues.

 

[Stymee]

Nope.. I let the car shift itself. Whenever I shift it on my own I manage to redline it

I personally tested it again the other day and my car shifts right about 120mph and 7k RPM. No hanging or issues.

3.15 or 3.55

 

[Jmtoast]

Just a quick question here. (Forgive me if it's been asked or covered already.)
When taking your car to the drag strip or Mexico, are you guys using the paddle shifters to shift the transmission or letting the transmission shift itself?
The reason why I ask this is because the GT500 guys were having issues as well and are using the paddles to shift down the track with better luck. (I know they are 2 completely different transmissions.) Just shooting from the hip here.

Ill be paddle shifting after 100 from now on but no I let it do its own thing.

 

[Jmtoast]

Nope.. I let the car shift itself. Whenever I shift it on my own I manage to redline it

I personally tested it again the other day and my car shifts right about 120mph and 7k RPM. No hanging or issues.

You don't have the modes either. I wonder if its just the cars with modes?

 

[brucelinc]

420 has a performance pack car so it has the 3.55 gear. Ccull also has the 3.55 gear and his car doesn't stop at 123. Jmtoast's car has the 123 stoppage whether in normal or drag mode.

Some cars have the issue and some do not. Strange.

 

[brucelinc]

You don't have the modes either. I wonder if its just the cars with modes?

Hmmm.....interesting thought. I suppose tuning could be different on cars with the modes.

 

[brucelinc]

Does every 2018+ Mustang get the exact same Roush tune or are there subtle differences depending on the car's pcm code?

 

[engineermike]

If roush is like Whipple, they start with the current ford strategy and apply their own changes. Ford is constantly updating the strategies so many will be different.

 

[hossman]

Here is a link to the video of the Phase 1 to Phase 2 upgrade install done by LMR.