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Old 04-17-2015, 12:40 PM   #10
crysalis_01
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Drives: 2003 Mustang Cobra
Join Date: Jul 2013
Location: Wyoming
Posts: 1,243
Quote:
Originally Posted by stoopid View Post
This article (not sure its accuracy, plus it's 7+ yrs old) suggests automatics are slightly less efficient than CVTs (14% loss v CVT 10-12%):

http://www.scribd.com/doc/195202379/...rnative-to-CVT

I always thought CVTs were going to be the eventual transmissions for all small/medium cars.
You might have a good point there, but with the R&D going into transmissions in the last 7 years since that article have seen the efficiency of conventional automatics rise greatly.


Quote:
Originally Posted by Ragnar View Post
Sounds complicated and heavy to me, that is interesting.
Remember that 11-speeds doesn't mean 11 different gear sets. Some are achieved via combinations.

This 11-speed design is described as only having one more clutch over the 8HP and 8L90, but the same amount of planetary gear sets. In fact, the doc shows the same amount of gear sets and clutches as the upcoming 10-speed, but must be arranged differently to make a usable 11th gear.
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