I am running a 700 R 4 automatic and I built it to withstand 800 h.p. It is programed for stage two , meaning I still have automatic shift however I re-calibrated the governor to shift at 7000 r.p.m. I also installed W.O.T for O.D. Recently I installed an experimental converter with a 3500 stall which retains lock-up. I installed the old valve in the pump, a new solenoid, and a new o-ring on the input shaft. I have by-passed all the usual lock-up delays and have it wired directly to a rocker switch mounted on my shifter. When engaged, it does not lock-up in first but when I get to second gear, it locks up after about 2 seconds, longer when it is cold. If I am under a heavier load, it doesn’t seem to lock-up until I get off of the petal a bit.

So, I am wondering if there is a sensor of sorts which interrupts engagement when the T.V. cable is extended to a certain degree or if it is activated off of line pressure. Also, is there a way of getting full lubrication to the rear of the tranny when not locked-up?