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      02-11-2017, 10:18 AM   #48
GuidoK
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Drives: Z4 3.0i ESS TS2+
Join Date: Jul 2012
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Quote:
Originally Posted by 3798j View Post
.although that "boredom" area of the schematic still exists.
Well an automatic transmission(slushbox) always has a lower efficiency compared to a similar manual gearbox: the torque converter still has loss until lock up, there's an oil pump dissipating heat, there's more rotational mass, power goes through more gears etc etc.
How can modern automatic transmissions rival or surpass fuel efficiency or acceleration compared to manuals? they can do that because they have 1 or 2 (or even 3) extra gears.
BTW that extra acceleration is usually measured in the 0-60; how it performs in the 60-120 is often not said

This all goes less for the DCT though. (That also has an hydraulic pump but thats electric and pretty efficient). Its more akin to the manual.
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Z4 3.0i | ESS TS2+ supercharger | Quaife ATB LSD | Brembo/BMW performance BBK front/rear | Schrick FI cams | Schmiedmann headers+cats | Powerflex/strongflex PU bushings | Vibra-technics engine mounts | H&R anti rollbars | KW V3 coilovers/KW camber plates | Sachs race engineering clutch | tons of custom sh#t
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