GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 8 of 8
  1. #1

    Default Trucks with CVT - Continuous Variable Transmission

    I'm reading and am surprised to learn GM is running CVT transmission in there new trucks.

    My wife has a CVT transmission in her 4 cylinder jeep patriot and I was very surprised with how well that little jeep responds. It has zip and is much faster than I would have ever expected. It drives different to anything I've driven before, you don't feel shifts, but once you get use to it, it seems like a superior technlogy.

    I was wondering how CVT responds and will hold up to tougher applications like towing and hauling.

    Thanks

  2. #2
    Sr. Mechanic sc99z71's Avatar
    Join Date
    Feb 2007
    Location
    Moncks Corner, SC
    Posts
    160

    Default

    The CVT is one the coolest things I have ever experienced on a vehicle. I used to work for Nissan which have been using them for years, and have driven every vehicle they have put them in. You don't feel it shift because it doesn't shift it is basically 1 long gear. It is a constant surge of power! I would also like to know how they would hold up to heavy loads.
    99 Silverado 1500 Z71
    5.3L 4L60E Tranny
    TransGo Shift Kit
    2.5" Rough Country
    Suspension Lift
    33" BF Good A/T
    Cherry Bomb Turbo
    Cobra CB w/
    Dual Fiberglass Antennas

    01 Kawasaki KLR650

  3. #3

    Default

    The CVT is the ultimate transmission and would / will be used in all vehicles except it just does not hold up to any serious torque. This is the reason you only see them behind little 4 cyl cars. I wasn't aware GM had a CVT for trucks. Can you post a link to this info??
    Jim

    2004 SILVERADO 2500HD LS
    Pro Comp Leveling Kit
    285-75-16 Cooper ST All Terrains
    Pro Comp Programmer
    Bilstein Shocks
    Linux Bed Liner
    Tinted Windows



    Other rides:

    1967 Landcruiser <350 Chevy>
    1970 Camaro
    1990 Geo Metro Convertible
    2007 FJ Cruiser

  4. #4

    Default

    I just found the information at the GM website. The CVT is in the hybrid truck. This CVT is actually 2 electric motors spinning the planetary gears in a conventional style transmission. It's a great design although not a true CVT transmission in the true sense of the word. What I mean by that is this transmission is not a conventional trans you could bolt up behind a gasoline motor in a non hybrid vehicle.
    Once the manufacturers learn how to make a CVT hold up behind a conventional V8 you will see them in abundance. They are the ultimate transmission because the engine can be run where it makes the most efficient power within it's power band.

  5. #5

    Default

    Biggest improvement since FI in my opinion. The concept of CVT is great.

    It DOES take time to get used too. I borrowed a buddy's car with it. It feels so different. When driving a normal auto you don't even realize the gear shifts. Not until you take them away...then something feels..off.

    I think they will have to do a lot of work on them...because as mentioned and based on what I read...it just won't fly pulling the heavy loads.

  6. #6

    Default

    Quote Originally Posted by Jimmiee View Post
    The CVT is the ultimate transmission and would / will be used in all vehicles except it just does not hold up to any serious torque. This is the reason you only see them behind little 4 cyl cars. I wasn't aware GM had a CVT for trucks. Can you post a link to this info??
    look up the Fendt Vario

  7. #7
    Sr. Engineer Dana W's Avatar
    Join Date
    Dec 2011
    Location
    Chuluota, Florida
    Posts
    361

    Default

    The CVT isn't very new technology. Leonardo Da Vinci came up with it 500 years ago. Somebody got around to patenting the CVT in the late 1880's. They have been using them in lawn tractors, drill presses, snowmobiles, and sawmills for a very long time.

    I think you may find that the transmission in most hybrids is actually a PST, or power sharing transmission. Some of the newer ones may be using CVT's, dunno.

    Subaru marketed a car with a CVT back in the '80's but it turned out to be a very expensive way to shred rubber belts a couple times a month.

  8. #8

    Default

    Quote Originally Posted by jwpete21 View Post
    look up the Fendt Vario
    There is a basic explanation of the Fendt trans. on you tube. Search AGCO cvt transmission. The Fendt trans is used by Massey Ferguson tractors also.
    '07 2500 HD reg. cab, 5sp manual 4x4

    When the need arises, any tool or object within reach becomes a hammer.

Similar Threads

  1. my trucks
    By 91subohio in forum Photo & Video Gallery
    Replies: 10
    Last: 10-16-2009, 08:41 AM
  2. Looking for Variable/Progressive Nitrous
    By ramrunnr in forum GM Powertrain
    Replies: 0
    Last: 10-30-2008, 11:22 PM
  3. Replies: 0
    Last: 06-08-2007, 11:53 AM
  4. Replies: 0
    Last: 06-08-2007, 09:20 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •