Advice on how to disable TCC lockup vs TPS on 7060 PCM

I'm looking for some advice on how to disable the TCC at say above 80% TPS... I see in the XDF I have there is a Torque Converter Release/Engage vs TPS table which seems to be triggered off MPH, however the highest I can set it is to 127.5mph. I've seen other threads saying that it may be possible to set it to 255mph but whenever I enter that number in it defaults back to 127.5mph.

I'm using the stock 7060 PCM to control a 4L80E trans, however its powered by a blown big block 540 at the moment, so I'm anticipating I may have a trap speed of >127MPH in the 1/4mi so I'd rather not risk having the TCC lockup under that sort of power.

Any suggestions on how I disable the TCC lockup under a certain threshold (that's above 127mph or >%80 TPS?).. Would setting it to 0 mph disable the TCC at those parameters?

Bluecat Transmission Table Software could be helpful with TCC Tuning: https://forum.hptuners.com/showthrea...Table-Software

dave w

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Originally Posted by dave w

Bluecat Transmission Table Software could be helpful with TCC Tuning: https://forum.hptuners.com/showthrea...Table-Software

dave w

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Thanks! Ya I have the bluecat software and have been using it successfully. The issue seems to stem from a limitation of the "127.5mph" deal as bluecat tells me basically to enter 255mph for certain WOT thresholds, however for some reason when I enter that in tunerpro it changes it to 127mph ??? I'm sure it stems from the fact this is an older PCM and perhaps that's a limitation of it (?)

Unless anyone has any suggestions on how to do this in the tune, I could always interrupt the brake pedal switch for the TCC when doing a WOT run via a switch I suppose..

In the link listed below shows a factory TH400 Kickdown switch. The kickdown switch can be wired through a 5 pin relay to interrupt TCC power at WOT.

http://www.gearhead-efi.com/Fuel-Inj...ll=1#post23185

dave w