The Lexus 8 speed automatic - Page 2

MrIcky · 11-16-2009, 02:25 PM

Whatever happened to CVTs? I know they're still in economy cars and I think Maximas? They were supposed to be the next big thing and replace the ever increasing gear count but they've sort of fallen off the radar?

coolman · 11-16-2009, 02:29 PM

Quote:

Originally Posted by MrIcky

Whatever happened to CVTs? I know they're still in economy cars and I think Maximas? They were supposed to be the next big thing and replace the ever increasing gear count but they've sort of fallen off the radar?

Their still going strong polaris atv's.

*Mr. Wyndham* · 11-16-2009, 08:01 PM

Quote:

Originally Posted by MrIcky

Whatever happened to CVTs? I know they're still in economy cars and I think Maximas? They were supposed to be the next big thing and replace the ever increasing gear count but they've sort of fallen off the radar?

They're no good for engines with any serious amount of torque. The belt they use slips like nobody's business.

*DGthe3* · 11-17-2009, 06:37 PM

Quote:

Originally Posted by comiskeybum

Can someone please explain why a car needs a damn 8 SPEED?

more moving parts that can break in my book........

but maybe one of you experts can explain the advantages to 8 gears.

I know where you're coming from. 2,3 and even 4 speed transmissions don't have a good enough range. 5 or 6? Probably optimal given the operating range of most gasoline engines (ie redline<10k). 7,8,9+? It would have to lock out certain gears durring normal operation otherwise it would probably be shifting all the time. There's enough complaints about 6 speed auto's hunting for gears, I hate to see what an 8 speed would do.

patriotpa · 11-17-2009, 06:44 PM

The more important question would be "Who in the world would want a Lexus?"

comiskeybum · 11-17-2009, 09:55 PM

i think 6 is plenty. i reallly dont see a need for 8

Number 3 · 11-17-2009, 10:03 PM

It probably seems like overkill and may even be Lexus merely thumbing their noses at the other OEMs, "Just cuz we can, baby. Just cuz we can"

However, as stated it allows for more flexibility in maintaining the engine in a more optimal operating RPM. You could, in theory, go for a better first gear for start and a longer 8th gear for highway cruising, but it generally doesn't work out that way. It is just a better spread between the 1st and 8th gear.

And if you drive one, you'll have to watch the tach. It's pretty smooth.

11-17-2009, 10:03 PM	#21
Number 3 Hail to the King baby! Drives: '19 XT4 2.0T & '22 VW Atlas 2.0T Join Date: Dec 2008 Location: Illinois Posts: 12,301 View My Garage	It probably seems like overkill and may even be Lexus merely thumbing their noses at the other OEMs, "Just cuz we can, baby. Just cuz we can" However, as stated it allows for more flexibility in maintaining the engine in a more optimal operating RPM. You could, in theory, go for a better first gear for start and a longer 8th gear for highway cruising, but it generally doesn't work out that way. It is just a better spread between the 1st and 8th gear. And if you drive one, you'll have to watch the tach. It's pretty smooth. __________________ "Speed, it seems to me, provides the one genuinely modern pleasure." - Aldous Huxley

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11-16-2009, 02:25 PM	#15
MrIcky Drives: Dodge Ram Megacab & Cobalt SS Join Date: Sep 2008 Location: Boise Posts: 1,536	Whatever happened to CVTs? I know they're still in economy cars and I think Maximas? They were supposed to be the next big thing and replace the ever increasing gear count but they've sort of fallen off the radar?

11-17-2009, 06:44 PM	#19
patriotpa Account Suspended Drives: 02 Silverado, 09 Vue, 10 1SS Join Date: Aug 2008 Location: Tired of apologizing when we should be kickin' butt! Posts: 1,962 View My Garage	The more important question would be "Who in the world would want a Lexus?"

11-17-2009, 09:55 PM	#20
comiskeybum Banned Drives: 2010 Chevy Equinox LS Join Date: Aug 2007 Location: South Bend, Indiana Posts: 799	i think 6 is plenty. i reallly dont see a need for 8