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Does Sprintbooster and SMG 550i=faster clutch wear??

Old Jul 19, 2009 | 07:24 PM
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So...does the Sprintbooster on a SMG tranny increase clutch wear? I have read this in a couple of places...

Thoughts??
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Old Jul 19, 2009 | 07:31 PM
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I don't think so, all the sprint booster does is eliminate the lag in the gas pedal. It would most likely have the same wear on the tranny.
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Old Jul 19, 2009 | 07:42 PM
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Light foot will be the solution
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Old Jul 20, 2009 | 06:22 AM
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Originally Posted by Speed_Force_E60' post='946969' date='Jul 19 2009, 10:31 PM
I don't think so, all the sprint booster does is eliminate the lag in the gas pedal. It would most likely have the same wear on the tranny.
+1. But I wonder if you floor it too much, does it have any effect to the trans at all?
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Old Jul 20, 2009 | 09:28 AM
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Good question!

Originally Posted by theXman' post='947396' date='Jul 20 2009, 10:22 AM
+1. But I wonder if you floor it too much, does it have any effect to the trans at all?
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Old Jul 20, 2009 | 10:09 AM
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If you want a faster SMG, intall the Quaife limited slip differential.
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Old Jul 21, 2009 | 09:45 PM
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what effect would the quaife limited slip differential have and what do you stand to gain?
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Old Jul 21, 2009 | 09:53 PM
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Originally Posted by theXman' post='947396' date='Jul 20 2009, 10:22 AM
+1. But I wonder if you floor it too much, does it have any effect to the trans at all?
The tranny will probably break before any difference in driving charactristics show themselves. Unless agressive driving causes tranny slam...
The Auto trannies have a tendancy to go South...
I think the only thing affected by aggressive driving is the clutch.
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Old Jul 21, 2009 | 10:00 PM
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Originally Posted by Krozi' post='949877' date='Jul 22 2009, 01:53 AM
The tranny will probably break before any difference in driving charactristics show themselves. Unless agressive driving causes tranny slam...
The Auto trannies have a tendancy to go South...
I think the only thing affected by aggressive driving is the clutch.
+1


If u want to preserve your clutch, just make sure it grabs. Drop it HARD!!!! Try not to slip it too much. I dunno how SMG drives tho.
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Old Jul 21, 2009 | 10:08 PM
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From what I know, SB does not affect the SMG, as long as you use the Auto SB, which has the less aggressive signal amplification, than the manual SB. Search for the thread where they posted the tech. white paper on SB - it covers the SMG issue.

I do not see how a quaife diff can make ANY difference at all on transmission speed by distributing the torque to the wheels that have grip? But that does not affect how the transmission is transfering the torque from the engine to the drive shafts... granted, LSD makes better use of torque, but why would it be any different with the SMG, as opposed to, say, manual or steptronic tranny? how does it affect the SMG performance differently?
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