Go Back   EcoModder Forum > EcoModding > EcoModding Central
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 01-28-2014, 11:47 PM   #1 (permalink)
EcoModding Lurker
 
Join Date: Mar 2013
Location: Calgary
Posts: 69

Black sheep 2013 - '11 Volkswagen Jetta S
90 day: 29.01 mpg (US)

black sheep 2014 - '11 volkswagen jetta trendline plus
90 day: 29.78 mpg (US)

Black sheep 2015 - '11 Vw Jetta mk6
90 day: 22.42 mpg (US)
Thanks: 20
Thanked 15 Times in 9 Posts
how do i know if my torque converter lock-up kicks in?

what shoudl i be watching for ,, i have tried looking for an extra downshift with no luck im in my top gear going the slowest possible speed 50 kmph and i dont know what to do next or if im missing an efficiency zone i dont know about,, im a newby

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 01-29-2014, 12:48 AM   #2 (permalink)
Master EcoModder
 
Join Date: May 2012
Location: USA
Posts: 2,643
Thanks: 1,502
Thanked 279 Times in 229 Posts
Try giving light throttle and see what speed the revs do not change, but the tone of the exhaust or engine does.

Watch rpms too and try in 5 mph ranges speeding up, then coasting and looking for an extra shiftor drop of 500 rpms for no reason.
  Reply With Quote
Old 01-29-2014, 02:41 AM   #3 (permalink)
Lots of Questions
 
Join Date: Jan 2013
Location: San Jose
Posts: 665

Motor-Rolla - '01 Toyota Corolla LE
Team Toyota
90 day: 28.3 mpg (US)

Gaia - '99 Toyota 4Runner SR5 Highlander
90 day: 19.78 mpg (US)

Gaia - Round 2 - '99 Toyota 4runner SR5 Highlander
90 day: 17.92 mpg (US)
Thanks: 343
Thanked 101 Times in 79 Posts
Is there a way to use a gauge/monitor to tell you when it is locked? (e.g. will a scangauge or similar have a "gauge" to tell you.) Or is there a way to install an aftermarket sensor that can turn an LED on/off in the cabin (i.e. light on, TC locked)?
__________________
Don't forget to like our Facebook page!




Best EM Quotes:
Quote:
Originally Posted by aerohead View Post
It has been said, that if you peel the duct tape back on Earth's equator, you'll find that the two hemispheres are held together with J B Weld.
Quote:
Originally Posted by Dan9 View Post
subscribed with a soda.
Quote:
Originally Posted by aerohead View Post
If you're burning,and someone throws gasoline on you,there will be a localized cooling effect, but you're still on fire.
  Reply With Quote
Old 01-29-2014, 02:53 AM   #4 (permalink)
Furry Furfag
 
Baltothewolf's Avatar
 
Join Date: Nov 2013
Location: Apple Valley
Posts: 2,084

Winsight - '00 Honda Insight
90 day: 56.69 mpg (US)

Miaderp - '95 Mazda Miata
90 day: 28.53 mpg (US)
Thanks: 67
Thanked 409 Times in 313 Posts
torque conver? Excuse my ignorance but is that thing the extra 'gear' in automatics so to speak that when between 45-55mph and low engine load, drops the rpm from say 2600-2k? (At 55mph).
__________________

  Reply With Quote
The Following User Says Thank You to Baltothewolf For This Useful Post:
Cobb (01-29-2014)
Old 01-29-2014, 03:26 AM   #5 (permalink)
Master EcoModder
 
Join Date: Aug 2010
Location: Philippines
Posts: 2,173
Thanks: 1,739
Thanked 589 Times in 401 Posts
Depends on the auto, but yes, when the torque converter locks up, the revs stay steady with speed. Many modern cars will let the converter slip while accelerating, then lock it up when you let off the cruise.
  Reply With Quote
Old 01-29-2014, 03:45 AM   #6 (permalink)
(:
 
Frank Lee's Avatar
 
Join Date: Jan 2008
Location: up north
Posts: 12,762

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,585
Thanked 3,555 Times in 2,218 Posts
Quote:
how do i know if my torque conver kicks in?
With the engine running and the trans in gear, you know the torque converter has kicked in when the car starts to move.

The torque converter lock-up clutch is what you are wondering about. Banks Power | Understanding Torque Converters
__________________


  Reply With Quote
The Following User Says Thank You to Frank Lee For This Useful Post:
dmafanp (01-29-2014)
Old 01-29-2014, 04:14 AM   #7 (permalink)
Furry Furfag
 
Baltothewolf's Avatar
 
Join Date: Nov 2013
Location: Apple Valley
Posts: 2,084

Winsight - '00 Honda Insight
90 day: 56.69 mpg (US)

Miaderp - '95 Mazda Miata
90 day: 28.53 mpg (US)
Thanks: 67
Thanked 409 Times in 313 Posts
Quote:
Originally Posted by Frank Lee View Post
With the engine running and the trans in gear, you know the torque converter has kicked in when the car starts to move.

The torque converter lock-up clutch is what you are wondering about. Banks Power | Understanding Torque Converters
Wow, thanks for that! I have always wondered how a auto tranny works and now I know (for the most part).
__________________

  Reply With Quote
Old 01-29-2014, 07:46 AM   #8 (permalink)
Master EcoModder
 
Join Date: May 2012
Location: USA
Posts: 2,643
Thanks: 1,502
Thanked 279 Times in 229 Posts
You could run an led or indicator lamp to it, but it doesnt show on a sg2 or the other guys product.
  Reply With Quote
Old 01-29-2014, 02:52 PM   #9 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,530

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 54.46 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car Mirage - '14 Mitsubishi Mirage ES (base)
90 day: 62.14 mpg (US)
Thanks: 4,078
Thanked 6,978 Times in 3,613 Posts
It doesn't show on the default OBD-II gauges, no.
__________________
Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage.
Ecodriving test: Manual vs. automatic transmission MPG showdown



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
  Reply With Quote
Old 01-29-2014, 04:13 PM   #10 (permalink)
...beats walking...
 
Join Date: Jul 2009
Location: .
Posts: 6,190
Thanks: 179
Thanked 1,525 Times in 1,126 Posts
ANALOGY: a "torque converter" is like two fans facing each other, one powered (input) and the other not powered (output).

The "air" from the powered (input) fan forces the unpowered (output) fan to turn/rotate, but not at exactly the same rpm, with the difference in their rpms being called "slip"...the more slippage there is, the greater the torque-ratio.

Basically the same process occurs inside the transmission torque-converter, except transmission FLUID replaces the AIR in the above example.

Thus, slight changes in engine RPM, not accompanied by equal changes in vehicle VELOCITY, means the torque-converter is NOT in lock-up. Think of lock-up as 1:1 gearing, ie: zero torque-converter slippage.

  Reply With Quote
Reply  Post New Thread






Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com