Disabling lockup torque converter

For example, the gear ratio of a Ford 6R80 automatic transmission is 5th gear. Then after a short cooling period, make two pulls in the gear ratio of the transmission with the converter locked. When looking at the dyno chart, there is an area where the Horsepower and Torque from each run cross each other. When looking at this, make sure the Horsepower and Torque axis values match. On our chart, both the Horsepower and Torque values start at and end at This is important for the next steps to be accurate.

There is a diamond shape created within the charted pulls, as seen in green on our chart. This space is the best area to start the lockup of the torque converter to reduce slippage loss without reducing the acceleration rate.

Based on this information, and using your software of choice, set the mph or RPM goal, as well as the gear for the converter to lock in. Locking the converter can be done in 1st through all forward gears, depending on what your transmission supports. Make sure that any timers for the lockup and the lockup rate are set correctly to ensure proper timing of the lockup in the window we want to see the green diamond area.

If you need more information on how to lock or tune, check out our transmission tuning courses. Each vehicle has certain challenges related to determining the optimal lockup point, but here are a few things to keep in mind:.

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These cookies track visitors across websites and collect information to provide customized ads. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. What Is a Lockup Torque Converter? No Comments. Understanding Torque Converters A torque converter is a coupling that sends rotating power to a rotating driven load.

History of Lockup Converters Lockup torque converters gained popularity when it was discovered that manual transmissions are more fuel-efficient than automatic transmissions. Stages of Operation The operation of the lockup converter is a bit complicated but one can still gain an understanding of it. Lockup Torque Converter Failures A torque converter lockup clutch may fail and there are different ways this failure can occur.

Lockout of the overdrive unit: An overdrive unit that is locked-up causes the torque converter lockup to also be locked out. Signs of a Failing Torque Converter There are times when your lockup clutch will not engage, and you can easily spot out when that happens. The Bottom Line A lockup torque converter is important in automatic transmissions to reduce slippage.

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Bloody annoying because apart from that, car runs great. Watching your thread with interest. I'd assumed this was std ECU operation. I'm wondering if there's any crossfeed happening with the piggybacked ECU's.

Post subject: Re: problem with lock up coverter in btr auto can it be disabled Posted: Wed Jun 06, am. Hello, I have the same problem with my 97 NL Fairlane.

Has anyone had any success with a cure?? Post subject: Re: problem with lock up coverter in btr auto can it be disabled Posted: Thu Jun 14, am.

Anyone have any other suggestions to try? Getting Side Ways.