Cheapest OD Trans lock up kit (no computer configuration)?

[Schmucker]

TCI sells theirs for $75 Painless sells theirs for something over $100 I think (did find it for $80 at Back to the 50's though) And now a company I found, Haywire Inc., sells theirs for $58 http://haywireinc.com/Merchant2/merc...tegory_Code=R1 All it says is that it locks the converter without a computer, but doesn't say that it only does it in 4th, but it says that it does that for the 700-R4 kit, which is $10 more. I don't know the differences between this, but I'll get the 200-4R kit anyway and try it I suppose. But does anyone know any kits that might be better/cheaper than this one? I've decided I need one after reading the Q&A in a Hot Rod that said that if you don't have 3.70:1 or higher gears you'll smoke the converter and transmission because in overdrive the converter will still be in it's stall range. Plus it'll give me something to do while my dad works on welding my a-arms for the coilovers.

[UKPaul]

I think you could do it for $5-00 + the cost of the wires + a switch on the brake pedal. Or you could spend a bit more & do it with a relay in the system. All you need is the connector on the 200-4r ($5-00 on the site you linked to) & power fed to the connector via a switch on the brake pedal (so that the converter unlocks when you brake, which you could alternately do by using a relay operated by power to the brake lights). If you supply 12v to pin A on the connector then it will lock the converter in OD & pin D is used to lock it in 3 (you'd better check the pins, my memory ain't to good these days!). I was told that locking the converter in 3 wasn't required unless I was going to use it for towing. I could have just jumped pins A & D together to have lockup in both 3 & OD but am glad I didn't as at low speed around town a locked converter can be a PITA. Whatever you do, definately make sure that you can lock the converter in OD.
In a nutshell, you won't need a kit, you just need the trans connector, a switch operated by the brake pedal (or a relay that's thrown when the brake lights are on) & some wire.
:cheers:

[mrvette]

If you all have a C4 vette repair manual, you will see in ch 7 the 700r4 tranny with page after page of various wiring configurations for TTC lockup, like it's a big deal or something, never saw so much confusionism over a simple topic, someone in GM is just outta controll....be as it may, MY version of the tranny has lockup available in 2-3-4 gears, yes I have a brake light controlled relay in the +12 line before the tranny, then it goes through the tranny TCC coil, the ground side of the coil is connected to several switches in the tranny.....the other side of the switches is connected to the SPDT switch I have on my console, either lock up all the time (unless brake is applied) OR is computer controlled which locks up at 45-50 mph.....I normally keep it in computer mode these days, as I think it's easier on the 3/4 clutch pack, I have a tighter converter from a truck application in there now, the old vette conterter was so loose and sloppy feeling I didn't get that nice pleasant bump when the tranny upshifted, so I would leave it in lockup all the time, and that was too hard on the 3/4 pack and the 2/4 band.....

burnt up them both I found when repair last year by myself....


GENE

[dman535]

I still do not see the need for a lockup switch attachement to the brake pedal. A 700/200r4 will not lock up in first gear. Just like a 4 speed car it is possible to use the brakes without pushing in the clutch. Here is a diagram of how it is wired on my car:

[norvalwilhelm]

My 700R4 only needed one wire with 12 volts running to the transmission to lock it up in 4th. I used a smart relay. It is a relay that closes the first time 12 volts is sent to it and opens when a second 12 volts is sent to it. The first time is when I hit the lock up button, the second time was when the brake light came on sending a 12 volt serge to the smart switch turning it off. I somehow worked a normal relay into the circuit so that another application of the brake never locked it up agian, only the activation of the push button switch activated it the first time. It cost me about $30 CDN for the smart relay plus a normal relay. Made a little circuit board for the 2 relays.