Thread: 700 R 4

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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?

#1 fluidpower, tranny fluid is not a lubricant.
#2 what sensors, cable adjust, press button ,full throttle your accelerator,make sure button locks and tranny shift points are set.
#3 you recently installed a 3500 stall torq converter which retains lock up, what computer is gonna run that?

Hey Devine;

The 700 tranny's T.V. cable does not set the shift points, it regulates the hardness of the shift via line pressure, but the governor dictates the shift points. I have no computer. I am not concerned with my shift points, I am happy with them, I want to have the converter lock up at the flick of the switch. These trannys have a temperature sensor in the pan which prevent the lock up from happening till it is warmed up. Well I removed it but I am still not getting instant lock-up at the flick of the switch, it varies.

you must be a genious because i had about ten built all by different people and it still wouldnt hold only about 500hp, i had a turbo350 built and its still on the road to day and has been for about 2years !!

Hi Jeffrey;

I find that in high performance there are no waranties. That is why I taught myself to build 800 h.p small blocks that last. Now I am trying to become an expert in the 700 R 4 trannys, for with them the same rule applies, no warranties.

You see, I strongly believe in O/D trannies in Rods, for the beauty is excellent gearing for the track or off the light, and then when you get on the Interstate, you hit O/D and now, lock-up!

Hey Jeff, I pull my front wheels off the line without slicks or nos. The main reason, 4.10 gears, but then add to that, a 3.06 first gear. If you do the math, it is like 4.56 gears with a 350 tranny. Now get a load of this, I hit highways speeds, and I am doing 2500 rpm.

So thanks for the complement, but I am not genius, just a man who is fed up with failures.

I wonder if I can load an image, for then I truly would be a genius.

Nope, didn't work. Damn, I am just an idiot!