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      02-07-2019, 01:55 PM   #1
michael4702
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F10 M5 JB4 Map 1 clutch slip in 4th

Hi all,

Just got the JB4 running well, colder plugs...

I put the JB4 in map 1 and went for some 4th gear pulls...

Clutch slip at the top end of 4th... 4-4.5K rpm.

I am in the UK and running 99 octane fuel, outside temp today 7C.

Is there anyway to limit the torque? The wife wont allow a clutch upgrade at this time :-)

Many thanks
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      02-07-2019, 01:59 PM   #2
finlandm5f10
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Say your wife that clutch is gone and have to upgrade. When it slip once. This is the end for that clutch. 👎🏻
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      02-07-2019, 02:18 PM   #3
michael4702
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Hi,

When I reverted back to stock (turned off the JB4) the clutch did not slip :-)
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      02-09-2019, 03:27 AM   #4
Mr. M6
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Quote:
Originally Posted by michael4702 View Post
Hi,

When I reverted back to stock (turned off the JB4) the clutch did not slip :-)
yes because less power, adding power again = clutch slip
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      02-09-2019, 03:55 AM   #5
PattyF10M5
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Time for a new clutch. If you want to keep running higher power and torque you will need after market ssp clutch.
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      02-11-2019, 07:12 AM   #6
ILLuSioNz X
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Quote:
Originally Posted by michael4702 View Post
Is there anyway to limit the torque? The wife wont allow a clutch upgrade at this time :-)
I personally skipped map 1 and went straight to map 2 on my JB4 but if your clutch is already slipping then I recommend you check out the latest BootMod3 tune designed to limit the torque until higher in the powerband.
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