Auto vs 5sp SBEC II

[bhazard]

Can anyone tell me what the difference is real quick? Will they interchange alright? Have an automatic car (92 shadow es t1) and a lead on a 5sp ECU. Ive come to realize how rare this computer really is and to have a chance at one for a half decent price is kind of exciting.

[capev86]

should be the same physically....its just some very minor programming differences having to do with engine controls that are needed with running a clutch. you can substitute one for the other provided you have the means to recalibrate it.

[bhazard]

So its not a direct drop-in-and-go?

[crazymadbastard]

Quote:

Originally Posted by capev86 should be the same physically....its just some very minor programming differences having to do with engine controls that are needed with running a clutch. you can substitute one for the other provided you have the means to recalibrate it.

I think the main difference is in the way the computer handles coming to a stop. If you run an auto computer on a stick it may rev too high when you come to a stop, if you run the stick computer on the auto it may stall. or vice versa-

[phantomrt]

It will work fine. I have yet to verify this in person, but the automatic computers are not Hi-torque calibrations. Only 568 transmission equipped vehicles had it. Automatics weren't rated for the 210 ft lbs of torque they made, and neither was the 523... Maybe. All theories until I can gather more data.

But, if you can, tell me what the part number is on your existing SBEC.

I have three of these computers, and all are part number 471-4122. One is to my original '92 GTC T-1/5spd. One came with the wiring harness that I am currently using in my Daytona and that wiring harness has provisions for a clutch safety switch, so these are more than likely original 5spd computers. But, my sources say that they are for automatics. 471-4121 is for 5spds... Hmmm Maybe my source is backwards.

However, I want to say that the P-body turbos never actually came with SBEC-IIs and were actually 1991 electronics. But, nobody will give me their part numbers from their '92 turbo P-bodies so I can verify.

I'm sure there are small differences between the 5spd and manual ones, but I'd say they will swap and go. FYI I am also interested in that SBEC-II.

I've driven a V-6 car with a 5spd and automatic computer for years. It had one drivability issue--a bucking while trying to putt putt putt along in city traffic. I never tried another 5spd computer in there.

[bhazard]

Number for the computer I have now is 467-2125. Its pretty toasted inside in a spot and the PO tried to resolder a couple wires. Did you say you want it? I guess it could be used for a core. Could use any money I can get for the 'new' one. Got one at a junkyard but cant quite afford it at the moment.

[phantomrt]

Thank you thank you thank you thank you. Any chance of the part number of the junk yard one?

According to my records, that IS a 1992 turbo computer, not the 1991 electronics I was thinking about.
467-2125 92, 2.5 Turbo, A413 Automatic
for Spirit, Shadow, Acclaim, Daytona & Lebaron.
Superseded to;

467-2165 92, 2.5 Turbo, A413 Automatic (anyway this is the latest for the Automatic) for Spirit, Shadow, Acclaim, Daytona & Lebaron

It seems that everyone I know that has one of these cars has a part the 467-2165 or 467 2125. I have all 471-4122. I am more interested in the working one at the junk yard. Contact Cindy at FWDperformance... she *might* be interested in it. Speaking of which, I was promising to buy one of her SBEC-II re-cals, but other projects and $$$$ shortage came up as usual. *sigh* It might be time to bust out the credit card.

Can crazymadbastard publish his SBEC part number?

[bhazard]

Im gonna try to get back to the junkyard next week and check the number on it, it was in a 91 spirit auto.

Sorry though, if it is usable, its definately going in my gf's shadow to get it running.

[shlbyZ]

ive swapped 5spd computers with auto computers with a 90 ES tona and a 91 shelby tona and i did not notice anything big or bad. one thing i did note was coming to a sudden stop in my auto ES with the a568computer was that the rpm would never drop as it should. my shelby with a 5spd wasnt affected as far as i could tell!

[phantomrt]

The computer from the '91 Spirit is an SBEC-I. Not SBEC-II. It can be made to run the car with small changes, and since it is a P-body, there isn't a ton of features on the car to deal with. They are not the same computer... FYI.

The '92 8v turbo SBEC-IIs are bastards. One goofy year.

[bhazard]

Could it hurt to just try it in the car?

I might just get it to sell it. Would be nice to make $10 or $20 towards getting the correct computer and help someone out on here, are you interested in it?

[Turbo-Baron]

So a auto comp in a five speed car won't hurt it? IM doing a five speed swap in my baron this week and was just wondering

[Boogieman142]

I am running a auto controller in a 5 spd. 3.0 and the only thing i notice as well is the bucking when trying to drive slow.

[phantomrt]

Quote:

Originally Posted by Boogieman142 I am running a auto controller in a 5 spd. 3.0 and the only thing i notice as well is the bucking when trying to drive slow.

Right on. I've tried everything ...making the engine mounts solid, new struts, different ignition timing, replaced the throttle position sensor, disabled the AIS motor, and more I cannot recall right now. The bucking resumed unchanged. It is like gritting teeth annoying.

I changed nothing when I did my 5spd 3.0 swap. I just unplugged the wiring for the transmission and left it hang there. The transmission computer is still in the car. Driven it this way for 40,000 miles, and nothing got hurt.

I would compare wiring diagrams between the 1991 and 1992 60-pin connectors before just plugging it right in. It'll probably be fine, but don't hold me accountable if big sparks occur when it is plugged in. The old computer fried for a reason--it might be worth looking into. I have little interest in the 1991 computer.

[crazymadbastard]

Quote:

Originally Posted by phantomrt Can crazymadbastard publish his SBEC part number?

I have 2 sbec IIs the one in my 92 5spd gtc is
471-4122 2731/9:27

I bought another for a spare 471-4121 1941/9:20

Those stickers are hard to read so I hope those are correct. Anyone know good stuff to use to clean the stickers and not lose the print?