NEEDED: 16197427 5.7L Manual Trans bin

[EagleMark]

I'd use a big block cal to start. IMO it's more appropriate for tha big old iron intake and block with slow burn heads. Typically the open loop cals only have the closed loop enable temp set high. Everythign else is usually copied from a stock calibration. Change the CL enable temp and you're good to go.

Looks like that's true for this $OE type stuff. But we found a $42 export leaded fuel bin that guy changed all those options and never got closed loop? I've helped a couple guys over seas with export open loop and was easier to just start with new bin, lots of other changes! One guy can't get parts in Iran and he's working on these changes now.

[EagleMark]

Your BCC lookup says:

BCC Find says without NM8 leaded fuel. So I went back and looked in Cal Data and it has a "-" sign in front of NM8 which is RPO code for leaded fuel. So I was wrong it is not leaded fuel which is always been open loop.

Checked the BHDC 93V8S10 said he has and same thing "-" NM8 so that is also a good bin with no superceded number and would ba a better start.

So I guess it was origanally for leaded fuel under another BCC then just used for closed loop. Weird how Cal Data says "-" and the emmisions catagory is just * ? These 7.4L manual was heavy a commercail truck to start...
So I'd like a copy of that bin please!

EDIT: Notice! I'm going to move a buch of these posts to origanal Maual bin thread I started awhile back to clean up my kids build thread...

[JeepsAndGuns]

So I'd like a copy of that bin please!

There is a copy of BMHK and BHDC in this thread:
http://www.gearhead-efi.com/Fuel-Inj...Information-OE

[93V8S10]

Actually, you already have it in the $0E thread.

[1project2many]

That's GM's coding straight out of the database. +NM8 = With leaded fuel. -NM8 = without leaded fuel. The key is that calibrations that are California or Federal Emissions certified for light vehicles have to be "-NM8" so the option code isn't usually included. But 8600# GVW and up are not "federal emissions certified" so the NM8 option is listed with the plus or minus sign. BMHL, BRCZ, BDTR, and BDWB are all manual trans, open loop calibrations if you'd like to do some comparing.

[1project2many]

Looks like that's true for this $OE type stuff. But we found a $42 export leaded fuel bin that guy changed all those options and never got closed loop?

Do you have a copy of this cal? I'd love to take a look.

[EagleMark]

Yup, it's clearly marked in the $42 ECM information thread. Was there as regular bin but brought to my attention by dyeager535 so I renamed it.

[EagleMark]

Actually, you already have it in the $0E thread.

Thanks!

That's GM's coding straight out of the database. +NM8 = With leaded fuel. -NM8 = without leaded fuel. The key is that calibrations that are California or Federal Emissions certified for light vehicles have to be "-NM8" so the option code isn't usually included. But 8600# GVW and up are not "federal emissions certified" so the NM8 option is listed with the plus or minus sign. BMHL, BRCZ, BDTR, and BDWB are all manual trans, open loop calibrations if you'd like to do some comparing.

Thanks for info!

Not really interested in open loop bins at all. Just thought if I could find a 5.7L Manual bin it would be an easier start. One I have and Jeepsand Guns is useing was superceded, one 93V8S10 brought up was not but both are 7.4L manual. One Gregcam has comes up as 5.7L Manaul from a 16197427 PCM but he says he pulled it from 5.7L 4L60E. So I really don't know wha tto start with. I know for a fact Manual bins have way differant settings, mostly IAC logic then auto. So manual bin, none superceded from 7.4L and make adjsutments then tune seems to be best start?

Haven't looked at this yet from Greg...

[1project2many]

Does BPRW have the manual bit selected? Any shift light parameters used?


I don't usually worry about getting the latest .bin. Many of the 93-95 cals were superceded to decrease cold spark advance to hide piston slap that developed as the engines aged. Big deal. Others have small changes such as slight increases in idle rpm or TCC engage / disengage speeds changed. Most of the cals we use are going in apps that are so far from stock it's not going to matter anyway.

[gregs78cam]

Manual Trans, Shift light, Stall saver....no, no, and no.

Shift light constants and tables do have data, but so do the 700R4 stuff. It seems to me they set this up from the factory with data to run anything with just a few bit changes.

[1project2many]

More than likely they were just like we are... started with another working cal and modified it as needed. I've seen some cals done by GM engineers "in the field" and it's really simple stuff. BLM and INT limits are set to provide a huge correction window, rev limiters raised but no corresponding changes to fuel or spark. Closed loop disabled and AFR's set around 12-13:1. Nothing official, and nothing condoned by GM but a good way to make an engine run without looking like an amatuer.

[jim_in_dorris]

Okay, I missed a 94 350 manual transmission 4x4 Z71 truck that a friend sold that would have had a manual bin in it. D@@@ it. Anyways I used the moates BCC lookup spreadsheet and filtered it for 427 ECM's with 5.7L and man. trans. and it shows BJYN which is in MOATES file managers as a 95 full size van 5.7l with a 4l60E modified bin. All the other BCC's aren't in moates. i am going to go try the BCC Lookup link now.

<EDIT> Okay, the BCCLookup has them all as automatics. There is another Z71 in town at a used car lot, I will stop and see if it is still there, and if it is a manual, will try and talk them into letting me see what the BCC is. Otherwise I don't know if I can locate the friends old truck as it was sold out of the area.

[gregs78cam]

You got me thinking, so I started looking, would any of these trucks happen to have what you are looking for?

http://spokane.craigslist.org/cto/2806133212.html
http://spokane.craigslist.org/cto/2835299214.html
http://spokane.craigslist.org/cto/2832495743.html
http://spokane.craigslist.org/cto/2818499107.html
http://spokane.craigslist.org/cto/2806411506.html
http://spokane.craigslist.org/ctd/2801275357.html

And one more just because it would be cool to see what they do with an Allison:
http://spokane.craigslist.org/cto/2823690965.html

[jim_in_dorris]

The 1st, 2nd, and 6th are exactly what I was talking about. It sure would be nice to know what BCC's they had, and even better, a copy of one of them to add to the collection. I just looked, none are listed in Klamath Falls.

[gregs78cam]

No but I just might try to get ahold of the owners and ask if I can read the memcal.