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SUVs Jeep Liberty and Jeep Liberty Diesel Jeep Liberty Diesel
10698 messages, Last post on Nov 30, 2009 at 5:16 PM
You are in the Jeep Liberty and Jeep Liberty Diesel Forum. Your Hosts are steve_ & tidester
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Caribou, That is an excellent point, which brings me to the next question. When you have a total break down of a torque converter due to excessive engine torque being delivered to the tranny, What portion of the converter fails due to this condition? I wouldnt think that the little bit of additional ratio necessary to achieve 75 mph at 2000 rpm would change torque converter load that much, but really not sure. Right now I turn 2000 rpm at 70 mph.
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Replying to: tnilc99 (May 03, 2009 11:39 am)
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Replying to: chester5 (Apr 30, 2009 1:09 pm)
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Replying to: arvman (May 05, 2009 7:47 pm) Unless the file is gigantic, it would probably be easier to simply email it. Just a thought.  tidester, host SUVs and Smart Shopper |
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Replying to: caribou1 (May 04, 2009 1:26 am) of the converter, and based on that discription I would say that the coupler section of the flange rotor is probably what fails when you here the explanation of a Torque converter sounding like (rocks rotating around in a can) What say you on this??? I sure would like to see a sketch of a cut away view of this beast. I have also heard of something in relation to turbine like fins breaking away internally within the housing. Whats that refering to if you know?? Ok man thanks for the replies and take care until later. Tnilc99
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Replying to: chester5 (Apr 30, 2009 1:09 pm)  mnsi.net. If you could contact me there I can send you my address. Thanks a lot.
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Replying to: chester5 (May 06, 2009 4:16 am) |
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Replying to: tnilc99 (May 05, 2009 9:53 pm) I just found this link (wikipedia) that may interest you: http://hotrodlane.cc/New%20HEMI%20Tech/2004%2057%20hemi%20trans.pdf There is also a PhD thesis somewhere on the web that defines a case study of our transmission...
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Replying to: tnilc99 (May 02, 2009 12:09 am) a bit to allow 75 mph to be achieved at 2000 rpm that would be ideal. Tnilc99, you can get 74 mph at 2,000 rpm by changing to 225/85/16 tires. Taller tires will go through deep snow and mud a little better - given the same tread. Others have done this but I don't recommend it because it adversely affects handling a little (your want to drive faster) and makes the torque converter issue worse. As far as changing the gear ratio you would have to change ring gear and pinion in both the front and rear differentials. This is not cheap to do and you would still have the torque converter problem. Also, going with taller gears reduces you towing capacity a little. I don't think you have that much to gain here. I get a dependable 29.5 mpg on the highway at 1,900 rpm and 66 mph (summer fuel). What's the difference what part of the torque convert fails? Lets tell it like it is. The CRD has a very good tough little transmission and torque converter (better with the recall) that stands up to the torque of the Hemi V8 but not the impulse torque of this nasty little VM diesel. Even the upgraded SunCoast converters are not holding up for some people. Here's the way I look at it. If I stomp the pedal off the line my rear tires get cremated. If I hit the throttle just right a 54 mph and 1,700 rpm I can get the converter to judder (slip) at 1,800 rpm. My solution is to not do either one, for now. |
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