1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

non lock torque converter

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Old May 7, 2010 | 06:28 PM
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sweetv8s10's Avatar
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Default non lock torque converter

I was wondering why people dont like the non lock torque converter?
 
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Old May 7, 2010 | 07:29 PM
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By its nature you will not transfer as much power as a lock-up. All 1st gens have non-lockup converters. An aftermarket non-lockup makes ALOT of difference and the harder you spin it (more RPM's) the tighter it gets.
 
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Old May 8, 2010 | 12:23 AM
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So are the non lockup torque converters more reliable as far as lasting longer then the lockup converters?
 
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Old May 8, 2010 | 12:53 AM
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They're more reliable because there's no clutches to burn up, but a burned-up lock-up converter becomes a non-lock-up converter...

Lock-up isn't desirable in a lot of car racing applications because it adds sprung weight, and at 7500 RPM and 500 foot pounds of torque it's a lot easier to get a very efficient fluid coupling than at 2700 RPM and 1200 foot pounds of torque.
 
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Old May 8, 2010 | 07:04 AM
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Its a give and take. In our applications, a lock up would be better. But that involves a transmission swap and some wiring. To some its worth it, to others an aftermarket non-lockup will work wonders!
 
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Old May 17, 2010 | 10:33 PM
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Who has an affordable and quality aftermarket converter?
 
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Old May 18, 2010 | 08:56 PM
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Hughes is the cheap affordable one. I run a Georand in my truck. Our sponsors can help you out!
 
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