Accessing F1 clutch wear and PIS with Launch or Autel

Yes that's great but does not explain the values that I'm getting...I have an older version of the Ferrari X431/Launch so I wonder if that may be an issue? But there should be formulas to check the numbers?

 

I believe I read that the X431 can only read newer TCUs. I don't recall how new, but I think it was 2003 or newer. If that's the case, you can make your TCU like new with a CS flash.

 

Sorry I meant that I have an older version of the SW program. The car is a 2003 360 and the SW connects to it just fine and reads the TCU (but not sure how mature this version of the software was because I'm getting strange values).

 

You need to upgrade, you have a older version with bugs.

 

Clear -- do you know if both the X431 application *and* the Ferrari database have to be updated or can you use the newer Ferrari database (Launch version?) on top of an older X431? I have X431 Pro3 v 3.12.007 from 2018 and the Ferrari is v.10.26 -- I understand that 10.26 needs to be updated to >10.8x (latest is 10.95 available)?

 

Sorry Im not certain. That said you can download the latest android apps from the Launch website and install them on your device. You'll need to re-subscribe though probably to get the Ferrari 10.95.

 

Thanks, however it looks like the v2 in the X431 is no longer supported by Launch so I need a workaround for getting the base application.

 

Is the v2 just a android tablet? If so, the apps are just generic android apps. I actually downloaded the apk from their website and loaded onto my phone (not a Launch product obviously). After logging in my account, it happily activated my dongle. Now I can use it on my phone whenever I want v.s. having to carry around the actual Launch tablet.

Of course, your mileage may vary...

 

Hi sorry the v2 was a Bluetooth dongle that connects to a tablet or phone. This (see attached).

I think I finally got it working with v10.95 and was able to scan the clutch. I have:

Clutch closed position = 17.64 mm
New clutch closed position = 15.40 mm
Clutch wear = 21.71%

PIS = 4.08

At least now this looks closer to actual numbers rather than what I was getting before.


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Also from this calculation (thanks @flash32):

Calculation of clutch wear percentage for Ferrari 360/430:
Autocalibrated closed clutch position - NEW closed clutch position / Clutch thickness (8.5mm for 360, 5.6mm for 430) *100 = % wear on clutch

I'm calculating around 26.x% used.

 

Strangely enough I found the Leonardo (independent mechanic) readings from ~5K miles ago, shows: the same new clutch closed position, but a smaller clutch closed position, and 17% wear. Interestingly enough the actual %wear does not match exactly the formula.

 

Launch update for X431 (Ferrari v11.00).
The 360's TCU should be work.
To test.


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DanNE: do you understand the difference between Clutch Closed Position (or as my x431 calls it "Self Calibrated Clutch Closed Position"), and New Clutch Closed Position?

 

(Not Dan, but.....) The car itself measures the value for Closed Clutch Position. The New Clutch Closed position is the number you enter for the value measured right after you replace the clutch. The Clutch Closed position will subsequently constantly be measured by the car, and the value will continue to change as the clutch continues to wear. That is why these 2 values can be used to measure clutch wear, using the appropriate equation.

Kevin

 

I have no intentions of disturbing the OP's question but since we are on a interesting subject and see no need for a new thread here is my question: I fully understand how the clutch wear is calculated, what the PIS adjustment is affecting on clutch engagement what is a bit grey for me since I never replaced a clutch on a F1 gearbox is when a new clutch is installed this new reading must be uploaded to the TCU in order for the correct clutch wear to be calculated there after.
Do you run a self calibration then observe the closed clutch position and document as the NEW clutch closed position.?
This seems plausible for me since the T/O bearing is going through its paces opening and closing the pressure plate.
Thanks in advance.

 

Thanks for the explanation. Is there any reason the TCU needs New Clutch Closed Position besides calculating clutch wear? In other words, is it part of the PIS or other calculations?

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Have a look at https://italianautotech.com/2021/01/03/setting-clutch-pis/

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I've researched this quite a bit on this forum, and I've seen arguments both ways. But I don't see how it functions in any way other than to calculate clutch wear. When I got my CS TCU, I had no way to enter my car's actual New Closed Clutch Position, as my old TCU was not readable by my Launch device. Did not notice any difference in performance, of course with a properly set PIS.

Kevin

 

Excellent explanation on PIS setting.. observing the Gearbox Primary angle rpm is the way to go for getting the perfect PIS..
So once the PIS is correctly achieved is it then we observe and document the "New closed clutch position".?
Thanks for the insight..good information.
Kaspar

 

You observe and document the New closed clutch position immediately after changing your clutch. Or copy over the value from your old TCU, IF it was set appropriately at the last clutch change.

Kevin

(In case people haven't seen this)
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Eric i wrote you many times an mail.. can i come from germany and take that TCU ? i am ready to come. i need it right now

 

Did you do anything other than swap out the BT dongle to get this working? I've got an '04 360. I have a Stradale TCU I got from another forum member and I'm looking to document the current TCU's settings prior to swapping it in (using a newer version of the x431 I got this week on Amazon), but I'm having the same exact issue you had with it outputting an absurd PIS setting that is obviously not believable (in the 160+ range like you observed).

 

But the old version ap200 autel to get values

Here is a link

https://a.co/d/5AkvbuK

 

Thanks for the tip, I ordered one. For clarification, should I pair this with the x431, or should I just use another android device with their recommended app to read the values?

Also are there any other settings other than PIS that you'd recommend I document and carry over to the new TCU?

Thanks again for the help. I'll be sure to report back here on my experience since this thread seems to be one of the main links that come back when you google this type of situation.

 

Install in a separate phone

The only data parameter that you can / want to copy over is "clutch position from new"