Torque Convertor Lockup
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Posting Guru
Joined: Nov 2008
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From: Lakewood, Colorado
Torque Convertor Lockup
I have a Pacbrake and an ATS torque convertor controler in the new truck. Im just curious, what should I program the torque converter to lock at? High or low speeds? What exactly will it do? Thanks
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Joined: Jul 2008
Posts: 11,231
Likes: 130
From: Thomasville, GA
Usually, lock at around 30mph or so, unlock at 25mph.
You don't want it to lock at low rpm's because it can damage the transmission. Above 1200rpm is best from what I heard.
Having it locked will lower trans temps, help towing. I have a manual switch for mine.
You don't want it to lock at low rpm's because it can damage the transmission. Above 1200rpm is best from what I heard.
Having it locked will lower trans temps, help towing. I have a manual switch for mine.
Posting Guru
Joined: Mar 2007
Posts: 1,842
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From: hillsborough nj
same, i have a manual switch and use it everytime i drive (as long as i'm not in the towing tune since that tune has AMAZING shift points/lockup points) i lock mine up whenever i hit 28-30mph and keep it locked until i'm below 25... lugging it with it locked at under ~1100-1200 rpms is bad news bears (lol) and the torque coupled with low line pressures can/will do serious damage to your trans/converter
Hotshot
Joined: Jul 2008
Posts: 11,231
Likes: 130
From: Thomasville, GA
I don't use mine driving it town because of all the stop and go and constant stopping. I was thinking about buying one of the programable modules to control the TC lock automatically, but I'm swapping in a ZF5 next year anyways.
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