I have a 65 GMC 292 inline 6 with the factory 1 bbl carb. Also have a freshly built 700R4 ****** that I planned on hooking up to it. I've been told 2 different things. I can't hook that trans up to a motor with a 1bbl carb. Also been told that I can and just requires a bracket that you can get from Lokar. Anyone have any clue about this?
I'd think it would be pretty simple. Just check the total travel or ratio on the TV cable end of something that came with a 700R4 and modify your throttle arm to give the same total travel from idle to full throttle.
I hate TV cables. Shouldn't be to hard to build a bracket. Is yours trans a lockup or nonlock up trans?
im not really sure about the lockup thing. i bought a little wiring thing from summit that does something with the lockup i think. know ABSOLUTELY nothing about auto ****** stuff.
X2. You can do this. Just modify a bracket to hold the cable. TV cables are easy to adjust, too, once you know how. Keep the bends gentle. You can get longer ones from Lokar, if need be. You should utilize the lockup feature. Without it, the transmission will run hotter in 4th gear, unlocked. Your mileage will be better with it locked too.
TCI makes a simple kit to install 700 in a carb vehicle, it has a lock up switch and a vac switch to control lockup. Transmission will burn up without a kit like this.
That is the power for the torque converter lockup. You should use it. It is not hard to hook up. We'll get you right through it. There is a harness that goes inside, that attaches to a switch that is closed (completing the circuit) when the transmission is in 4th gear, to lock up the torque converter. Some models have two switches, so it can lock up in 3rd too. The outside wires can be hooked up a few different ways. You can have it locked up all the time in 4th, or based on vacuum. You can even hook it up to un-lock when you hit the brakes. Do you have a part number on the wiring kit from Summit? Let us know, and we can help you get that all hooked up.
Here's most of what you need to know: http://www.purplesagetradingpost.com/sumner/techinfo/700R4p1.html Make your bracket EXACTLY to those specs. Buy an aftermarket adjustable cable. The Tv cable MUST be full pull at full throttle, The TV cable adjustment at idle will control how the trans acts. A 100psi guage in the pressure port above the shift linkage will help to show when the trans pressure begins to rise. I'm swapping in a 700r4 where a Turbo 400 used to be in my 64 Chevy truck, so I know what you're in for. Ralph
Oh, and don't be put off or worried about all of this. I remember to this day what I felt like when I did my first 700R4 installation. Last week, I did my 101st. 700R4 installation. Once you know, you will wonder what you were all worried about.
AllI did was buy a brake/cruise switch from a 79 Corvette. Has 2 terminals for brakes & 2 for cruise on same brake light switch. You will use the 2 for cruise to lock & unlock the converter. Mine locks in 4th gear only & unlocks when you hit the brakes. You don't need a kit. Works great.
Ok, super easy. This is JUST nuts and bolts, with a couple of wires to plug in. I almost always set these up for customers in a fashion that requires no intervention by the driver. Most often, this is the "locked up torque converter in 4th gear" method, without the vacuum switch. This can be done with the trans in the car, or on the bench. Pull the pan. You will see some wires in there. They attach to the bulkhead connector that takes them outside the transmission, and to a few other things inside. Where the wires go, toward the front of the trans is the solenoid that controls the lockup. Where the wires go, towards the back, on the valve body, is/are the switch or switches that complete the circuit to turn the solenoid on. One the TCI plug, connect the red wire to a 12V power source that is on only when the key is on. Connect the black wire to a good ground. These are the "head" and the "tail" of the control circuit. This 12V+ and ground are p***ed into the inside of the transmission vial the bulkhead connector. Use the wire, connectors, and switch per the instructions in the kit: http://static.summitracing.com/global/images/instructions/tci-376600.pdf Wen you are done, you should have a circuit that starts at a 12V key-on source, p***es through the 4th gear switch on to the solenoid, and then off to ground. It is that simple. There is a green wire on the connector that will remain unused, unless you want it to be. If you connect this to the included vacuum switch, and that switch to ground, the lockup will be in 4th and vacuum controlled in other gears. If you connect this to a manual switch, you can control the lockup yourself.
Thanks fer all the help! Glad to hear this'll work with a 1bbl carb. Didn't wanna have to change a bunch of stuff to make this work.
Setting it up to shift properly can still be a pain, but be sure to let us know how you're managing. Ralph
Setting up a 700R4 with a pressure gauge is a must if you want it to live. This will be after you work out the geometry and linkages and will serve to confirm everything you've done is correct. Very easy, there is a pressure port on the driver side. Basically you check the pressure at idle, 1000-1100 rpms, and full throttle in PRND against a service manual chart (there are a couple online, I have one in the garage). What you will find out is that the TV plunger needs to have a very, very slight pre-load at idle, like maybe 1-2 lbs. As soon as you engage the throttle the pressure should rise. If you've done the mechanics correctly you will hit the correct pressures and have no problems, long trans life. I've seen and driven some of these that feel right but when checked don't have pressure soon enough, this will burn the clutches up sooner. A common mistake is that the TV plunger bottoms out too early or not at all because the pull length on the throttle is different than the plunger. Then there is the geometry stuff which I don't mess with, because adapter arms are available for 4bbl's. Your case with a 1bbl is special but not impossible. Call bowtie overdrives or phoenix transmission they are both very helpful. And the purples trading post stuff is right on. Also if you want to know how to do the lockup for less than $20 it can be done with junkyard/counter parts (cruise/cancel switch, vacuum switch, wiring and solenoid). The 4th gear lockup solenoid and internal wiring is already in most 700r4's which is why I don't understand how that is part of most of the kits. Real easy to identify if you have the pan off. Let me know if you need p/n's for the switches. Phew...sorry for the novel!
Follow the following link for all of the information you will ever need on how the 700R4 TV system works. They also have complete details on how to install the cable and lockup. http://www.tvmadeez.com/article/index.php
That is a good one. Just a reminder, the 700R4 was renamed the 4L60 when GM renamed all of the transmissions. It is NOT the same as, and should NOT be confused with the 4L60E, which is externally electronically controlled.
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