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Old 07-24-2019, 09:52 AM
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Default Clutch Snap Says Greater Than 100%?

As I don't know if the clutch has been replaced on my 2008 Gallardo Spyder with 18k miles, I recently got a clutch snap done at Blackhorse Motorwerks in the KC area. They have the Leonardo Software. The tech said that something was wrong and the values were indicating that the clutch had greater than 100% life remaining. He said something about how people can reset certain e-gear values to make it appear like the clutch is less worn than it really is. Can anyone shed some light on what he was talking about? What parameters could be reset to cause this? Did the tech just do something incorrectly or misunderstand the values from the Leonardo software?

I don't really care if someone previously changed e-gear clutch values to result in this, I bought the car expecting to replace the clutch but was just curious as to how much life the clutch might have left as it drives great currently, and I'd like to understand why I couldn't get a meaningful clutch snap.
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Old 07-24-2019, 07:35 PM
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Do you know when the clutch was replaced?

The difference between a cold clutch or a hot clutch in a snap could be as much as 0.3 mm. So if you have a brand new clutch and you have less than 1,000 miles on it, the snap MIGHT show more than 100%.
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Old 07-24-2019, 08:41 PM
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Unfortunately I don't know when the clutch was replaced, if ever. Don't have much history on the car aside from the Carfax. There is plenty of service history there, just nothing definitive about a clutch replacement. At 18k miles I figured if it wasn't replaced recently it is surely near the end of its life. I am just confused by what the tech said, that "someone probably changed some settings or reset things when they shouldn't have, so the clutch life is incorrect/falsified." Not quoting exactly there but something along those lines...

I just don't understand what settings could have been changed to result in what is probably an fairly old/worn clutch, showing greater than 100%. For example if the clutch really had 20% life left, can you change something or reset some e-gear clutch parameters such that a future clutch snap would show that the clutch was NEW or even better than new? I have a very limited knowledge of the clutch parameters, but it seems to me that either they didn't really know what they were looking at from the clutch snap results in Leonardo, or the values were just erroneous. What do you think?
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