Hi All,

I have started the process to replace the TH200c traanmission with an new 4L60e(GM part number 12497318). This is the transmission used in the 97 Police package Tahao. I have already purchased the transmission, forth-gen tail-housing, 700r4 aluminum drive shaft and torque arm.

I know you guys have done 4L60E transplants into your thirdgens. I have a few questions.
I would also like to start a general discussion, etc..

My first question
1) Have any of you used the TCI 4l60e controller?
2) If you have please deteil your experiances.

3) I currently have Gen 1 350 SB with TPI fuel injection. The flex plate is the orginal 153 tooth. I do not want to change the flex plate. Will this flex plate work with the two piece 4L60e 1997 transmission.

I already know that I have to purchase a forth gen torque arm transmission bracket. I guess I will also have purchase a new exhust hanger.

4) Do you guys run into any problems that I should be aware of?

I posting here because I didn't get any responses from the transmission board.

Thanks for your help!

 

just awsome...love what your doing.Sorry I dont have much knowledge on this kinda a swap but I wanna a do it so im subscribing to this thread and giving it a bump

 

AFAIK, the E input shaft is the same length as a 700.
So a long as you have .25"-.5" between the converter and the flexplate with the converter pushed all the way in you should be ok.
You have to watch what converter you run with what transmission and ecm. The later ones used a carbon fiber based clutch and need PWM l/u control.
ie the solenoid pulses real fast till it's on all the time.
The ecm does this. Not sure if the actual solenoid is different.
The earlier converters were on or off so to speak and used a different clutch lining. I don't remember which way you can swap them. But get it wrong and the converter won't last.
Nor will the trans with all that converter "dust" going through the VB.
Do a search on the 8625 and 4L60E for what other people are working on. Not too many threads lately dealing with them.

 

The convertor is already on the tranmission, got a real good deal on a new 4l60e transmission. got it way below cost because the guy wants it off of his inventory. The transmission came with a 1year/24,000 mile warrenty and the dealer will renew the warrenty when the transmission is install. The stall of the convertor is 2300 RPM.

So does the TCI controller pulse the converter? Just answer my own question, yes it does if it the later model. I may go with the GM performace parts controller.

 

I would run a GM '8625 PCM (or the newer 16196395 or 16197427 with $0E code), which you can pick up for $50 from a junk yard. Much better then paying $1000 for a transmission controller. For more info check out this: https://www.thirdgen.org/techbb2/sho...hreadid=270266

 

I think the later TBI PCMs may also do the PWM TCC lockup. In the tables it hints at it, anyway. I havnt gotten into the transmission stuff yet but it could work as a trans controller. Only problem is that there may be some ill effects from only having it operate the trans and not the whole powertrain. Probably would have to go through and specifically set it up to run the trans. I dont think it would need any code changes, but youd definatly have to know what your doing.

 

$0E and $31 code on the 16196395 and 16197427 is for controlling the 4L80E. $0D is for the 4L60E. The '94 and below converters do not use PWM, '95 and above do. This is reflected in the $0D BCC's in '94 and '95, so if you use a later PCM, I would use the 16197427 and an $0D BCC from a '95 truck. BJYL is a good choice. HTH

 

NVM... read teh above post.

 

...

 

Well I think it would be easier to use the PCM to control the whole powertrain, it will need some constant and table changing to get it to work smoothly with TPI but don't think it would entail to much.

HaulnA$$,
Thanks for the correction.

 

I think it would work for TPI as well. The injector firings appear to be interrupt driven. Cant confirm this without my bench at the moment, though. Non the less, if it where true then it woudl mean that they would be easily reconfigured to work with MPFI or TPI.

 

Using a piggyback PCM for tranny control has been done. While I have not done it to any of my own vehicles, I helped a friend put one in an '89 P/U running a 1228747. In addition to the tranny portion of the harness, IIRC we paralleled power (switched and unswitched), ground (battery and sensor grounds), RPM, TPS, MAP, and brake signal for TCC. We kept the ALDL stuff intact for datalogging and we had to use the DRAC module to make the VSS work right. I disabled all the engine related DTC's in the .bin and fired it up. It worked great. There is a pinout of the '95 PCM on the DIY-EFI FTP site that could be helpful. I think he also had to upgrade to an aftermerket electronic speedo but I'm not sure, It has been a couple of years. Anyway, Speed and Performance sells a piggyback harness to run a '730 on a later TBI PCM if you want to go that route. HTH

EDIT: I just realized that we are talking about an '82 bird. I am not familiar with one and my post may or may not apply. If not, please ignore.

 

Do you have a link?

 

Link to what? The '95 PCM pinouts? Look here ftp://ftp.diy-efi.org/pub/gmecm/manuals/16197427/ , or a link to Street and Performance (I called it Speed and Performance before, my bad) ? Look here http://www.hotrodlane.cc/ . HTH

 

Thank you all for your comments.
But when I did the TPI injection install, I used all new compaonants, and yes it cost a lot. But well worth it, because I have had trouble free perfromance though all of these years excluding the problems cause by the acceident in 2002. The TPI injection system is back to 100% operation and I'm getting about 18 MPG @ 70-80 MPH.

So I sticking with new componants because of the warrenty. Like the TPI system, I will do all of the wiring myself. And then I have the transmission install by a GM dealer just like I had the TPI/350 installed. Yes it expensive this way, but then, I assured of trouble free operation.

So far I have found four sources for the controller; They are GM-Parts, TCI, and two others. I believe that the GM-PARTs and the TCI unit are the same since they both come with the same software for the Laptop PC.

I am planning on using a Cable-X unit to drive the speedomenter and switching to new curise control electroinics.

Currently with the trasmission, drive-shaft, torque arm, and tail-housing I have spent $1400. The whole cost for the entire transmission install will run about $3100, that includes labor to install the transmission.

I'm open to the option of having a PCM to control both the TPI Fuel system and transmission. Is there an aftermarket harness with full emissions that can be used? And what PCM should I used? I am running the 1989 TPI injection system with Mass Flow Sensor.

 

EDIT: I just realized that we are talking about an '82 bird. I am not familiar with one and my post may or may not apply. If not, please ignore.


Yes its an 82 bird. The secret is to keep the new system wiring seperate from the original bird's wiring. That way you avoid the problems with missing with the orginal bird's wiring. This is main reason for using the Cable-X to drive the speedometer. My current speedometer has the VSS to drive the ECM for the TPI system. The current TPI-ECM works with no problems, and I thinkg is leaving everthing I can intact.

I have two options for wiring the transmission controller into the car.
1) Route all wires from the controller to the sensors( TPS, DIST) using TCI adapter harnesses for the TPI, DIST)
2) Open the ECM wiring harness under the dash and make all connections there except for stuff thats connects to the transmission.

If there is room next to the current ECM, then I will make a bracket and mount both the ECM and Transmission controller together. Then I can route the transmission control harness though the same path as the ECM.

 

Hi Everyone,
Just a line, progress is made, Received the correct Tailhousing for the applicaiton. I'm going to proceed to acquire the rest of the machnicals for the conversoin such as troque arm bracket and exhust hanger, yoke, universals, cross member.