Good starter "bin" file for a 400/auto smallblock

[GMC Truck]

I got a friend that has a 400 smallblock with 350 turbo automatic and using 7747 ECM with GM swapped TBI in a pickup. Motor is mostly stock with aluminum intake and hedders. Needing a BIN file to start with and or suggestions to mod for the 400 cubes.

 

[dave w]

I got a friend that has a 400 smallblock with 350 turbo automatic and using 7747 ECM with GM swapped TBI in a pickup. Motor is mostly stock with aluminum intake and hedders. Needing a BIN file to start with and or suggestions to mod for the 400 cubes.

If I were to write a starter bin for the SBC 400 with TH350, I start with AMUR.

1. I would modify the timing table to the table table here: http://coloradok5.com/forums/showthread.php?t=275641

2. Set the .bin for Manual Trans, so the ECM does not have error codes for TCC.

3. Set the BPW for about 124 with 90 lb injectors. If using 55 lb injectors I'd set the BPW to about 142.

4. I would likely eliminate the ESC, Knock Sensor,(GM never made a knock sensor for a SBC 400) and maybe eliminate the EGR.

It's not part of the .bin, but I would also upgrade to a 3 wire heated O2 sensor when using headers.

dave w

 

[86TPIBurb]

Dave, For someone that does not yet have a laptop for datalogging, What initial changes should be made to A TPI AUJP 8D going into a 6000# 5.7 truck? Didnt get much help on "That Other forum"

Sorry, not trying to thread jack.
Jim

 

[dave w]

Dave, For someone that does not yet have a laptop for datalogging, What initial changes should be made to A TPI AUJP 8D going into a 6000# 5.7 truck? Didnt get much help on "That Other forum"

Sorry, not trying to thread jack.
Jim

Jim,
Without knowing much about the engine, or engine mods, I would.

1. Eliminate VATS

2. Eliminate Emissions, ESC?

dave w

 

[86TPIBurb]

Jim,
Without knowing much about the engine, or engine mods, I would.

1. Eliminate VATS

2. Eliminate Emissions, ESC?

dave w

Stock Swirl port 87-95 truck engine. No problem with VATS, gotta keep emissions, as I live in the state that want`s everyone to drive a Prius. I need to fatten up the AFR a little. I was trying to figure out how to adjust the VE tables on my AUJP to be more like a BJLH bin., which is for a truck in the first place.

 

[dave w]

Stock Swirl port 87-95 truck engine. No problem with VATS, gotta keep emissions, as I live in the state that want`s everyone to drive a Prius. I I need to fatten up the AFR a little. I was trying to figure out how to adjust the VE tables on my AUJP to be more like a BJLH bin., which is for a truck in the first place.

IMHO (In my humble opinion) it's really apple and oranges the AUJP and BJLH. The only way I would ever change a VE table is with data logging information. If I thouth the VE table was lean or rich everywhere, I would adjust the injector flow rate. Changing the injector flow rate affects the whole VE table.

Example:
Old injector flow rate 19 lbs / hr.
New injector flow rate 21 lbs / hr, will make the entire VE table go lean.

Old injector flow rate 19 lbs / hr.
New injector flow rate 17 lbs / hr, will make the entire VE table go rich.

Injector flow rate is a course adjust, and VE tables are a fine adjust.

dave w

 

[86TPIBurb]

IMHO (In my humble opinion) it's really apple and oranges the AUJP and BJLH. The only way I would ever change a VE table is with data logging information. If I thouth the VE table was lean or rich everywhere, I would adjust the injector flow rate. Changing the injector flow rate affects the whole VE table.

Example:
Old injector flow rate 19 lbs / hr.
New injector flow rate 21 lbs / hr, will make the entire VE table go lean.

Old injector flow rate 19 lbs / hr.
New injector flow rate 17 lbs / hr, will make the entire VE table go rich.

Injector flow rate is a course adjust, and VE tables are a fine adjust.

dave w

Ahh, Ok. Thanks, I will tinker some more.

 

[ChickenRammit]

It's not part of the .bin, but I would also upgrade to a 3 wire heated O2 sensor when using headers.

dave w

hey dave, what are symptoms that you might need to run heated 02 sensor?

i have headers on my truck, and i was just wondering what the benefits of running the heated 02 sensor would be.

 

[dave w]

hey dave, what are symptoms that you might need to run heated 02 sensor?

i have headers on my truck, and i was just wondering what the benefits of running the heated 02 sensor would be.

I can only guess at the symptoms would be, because I've never tried to run headers without a heated O2 sensor.

1. Excessive fuel consumption.

2. Error codes for O2 sensor rich / lean.

3. Idle surging as the ECM compensates for an erroneous O2 sensor reading.

dave w

 

[eagle mark]

I've run headers without a heated O2 and it's a myth as to needing one with headers!

Stock 1990 Chevy Blazer full size 5.7L auto with headers, dual exhaust and MSD 6al. Only thing I noticed was more open loop idle. Because of the headers it took longer to warm up the engine because with headers there is no heat riser (flappy thing that forses some hot air through intake when cold)

 

[MNorby]

back to the original question, is there a chart, table, index whatever of all the various stock bins and description of there application? Seems like I have seen a couple discussed here or there but not a definitive index list.

 

[dave w]

back to the original question, is there a chart, table, index whatever of all the various stock bins and description of there application? Seems like I have seen a couple discussed here or there but not a definitive index list.

Download the Moates.net BCC Lookup Excel Spreadsheet.

dave w

 

[MNorby]

ah, cool. I think I saw that a long time ago on friends machine but forgot about it.