Bringing TBI and Multi Port Fuel Injection to a New Level.     EFI Conversions and Tuning! Seattle to Portland! E-mail Tuning Consultant!
Results 1 to 11 of 11

Thread: Data files for my 1993 roadmaster 5.7 tpi

  1. #1
    Fuel Injected! Jim_Rockford's Avatar
    Join Date
    Sep 2015
    Age
    46
    Posts
    22

    Data files for my 1993 roadmaster 5.7 tpi

    Just wondering how things look on these files. I have installed a vortec fp and shaved the ridges on the tbi , rebuilt the TBI and shimmed the regulator spring, wondering if it is too much fuel .
    this file is from a cold start and long drive to work. I was having problems with the coolant temp reading low , not sure if its the actual reading or Im reading it with the wrong .bin sorry for the title it should be tbi not tpi
    Attached Files Attached Files
    Last edited by Jim_Rockford; 1 Week Ago at 08:26 PM. Reason: tbi not tpi
    1992 Camaro B4C LB9 305/5 speed 3.45 gears .

  2. #2
    Super Moderator dave w's Avatar
    Join Date
    Feb 2011
    Posts
    3,406
    I couldn't tell what 1993 TBI .adx file was used ($OD, $E6, $31, $OE, or ???) to record the data log.

    The overall BLM average was 124 (slightly rich). Ideally the BLM average will be 128, the closer to 128 the better. I only saw 531 lines of data in the .csv. I like to see about 20 minutes of data to get a good idea of what is going on.

    dave w

  3. #3
    Fuel Injected!
    Join Date
    Oct 2013
    Posts
    790
    What have you got exactly?

    I thought the 93 Roadmaster was a LT1 or L99 (4.3L V8 similar to the LT1) with a 16159278 computer????

  4. #4
    Fuel Injected! Jim_Rockford's Avatar
    Join Date
    Sep 2015
    Age
    46
    Posts
    22
    Quote Originally Posted by lionelhutz View Post
    What have you got exactly?

    I thought the 93 Roadmaster was a LT1 or L99 (4.3L V8 similar to the LT1) with a 16159278 computer????
    No 93 was the last of the tbi 180 hp engines, 94 they went to LT1 and L99 4.3 V8 on the caprice only the data log file was A129-LO3-LO5-LB4-1991-1993-9600.ADX
    1992 Camaro B4C LB9 305/5 speed 3.45 gears .

  5. #5
    Fuel Injected! Jim_Rockford's Avatar
    Join Date
    Sep 2015
    Age
    46
    Posts
    22
    Longer run, this was almost my entire drive to work mostly interstate.
    Attached Files Attached Files
    1992 Camaro B4C LB9 305/5 speed 3.45 gears .

  6. #6
    Fuel Injected!
    Join Date
    Feb 2013
    Location
    Euless, TX
    Posts
    1,467
    Quote Originally Posted by dave w View Post
    I couldn't tell what 1993 TBI .adx file was used ($OD, $E6, $31, $OE, or ???) to record the data log.

    The overall BLM average was 124 (slightly rich). Ideally the BLM average will be 128, the closer to 128 the better. I only saw 531 lines of data in the .csv. I like to see about 20 minutes of data to get a good idea of what is going on.

    dave w
    From 12+ years of TBI tuning experience, I tend to stay slightly richer than 128 BLM. I stay in the 122-126 range. Would rather let the ECM pull a little fuel than add it. If the BLM is greater than 128 the ECM uses the last value before it enters Power Enrichment and multiplies the fuel value by that percentage. So if it is running 134 BLM at light throttle, when you stand on it the ECM will add 7% fuel across the board. If you are targeting 12.6:1 air/fuel ratio and VE/Fueling is accurate at WOT you will suddenly see the WOT afr in the 11.7 range. If you stay a little on the rich side the engine will respond more smoothly and generally run better all around.
    Last edited by Fast355; 6 Days Ago at 10:58 AM.

  7. #7
    Fuel Injected! Jim_Rockford's Avatar
    Join Date
    Sep 2015
    Age
    46
    Posts
    22
    I found a different .Bin file to use and this one has more info and I figured out what the deal withthe temp readings being so far off, its *C not *F lol the new file has both.
    1992 Camaro B4C LB9 305/5 speed 3.45 gears .

  8. #8
    Super Moderator dave w's Avatar
    Join Date
    Feb 2011
    Posts
    3,406
    With Closed Loop = "Set" (Colum AS) the OVERALL BLM average (Colum M) = 114. The Excel formula I used to determine Overall Average =AVERAGE(M314:M1139)

    Maybe Fast355 will agree with me? An overall Closed Loop BLM average of 114 is rich.

    dave w

  9. #9
    Fuel Injected! Jim_Rockford's Avatar
    Join Date
    Sep 2015
    Age
    46
    Posts
    22
    thats funny cause Im running 5-6 gallons of E85 in addition to 87 e10 in a 22 gallon tank at fill ups. think that is causing the O2 to think its lean and trying to fatten it up?
    On that note , I used some in my 92 Camaro B4C from time to time and this is what the intake valves looked like when I pulled the engine yesterday

    Not bad for 199k
    Last edited by Jim_Rockford; 2 Days Ago at 07:36 AM.
    1992 Camaro B4C LB9 305/5 speed 3.45 gears .

  10. #10
    Super Moderator dave w's Avatar
    Join Date
    Feb 2011
    Posts
    3,406
    Adding ethanol to gasoline effects the way an engine needs to be tuned: http://blog.innovatemotorsports.com/...the-difference

    dave w

  11. #11
    Fuel Injected!
    Join Date
    Oct 2013
    Posts
    790
    Quote Originally Posted by Jim_Rockford View Post
    thats funny cause Im running 5-6 gallons of E85 in addition to 87 e10 in a 22 gallon tank at fill ups. think that is causing the O2 to think its lean and trying to fatten it up?
    A narrowband O2 reads rich or lean from stoichiometric no matter the fuel. Adding extra ethanol into the fuel when using a gasoline tune should cause the BLM values to go above 128 since the engine would require more fuel to remain at stoichiometric. Same driving condition = same air but the same air requires more ethanol fuel mass then straight gasoline fuel mass.

Similar Threads

  1. Tunerpro newb, 95 Roadmaster
    By Dirtybob in forum Introductions
    Replies: 1
    Last Post: 08-13-2016, 10:01 AM
  2. 1993 Cadillac 4.6L Northstar bins and xdf files?
    By 677litre in forum GM EFI Systems
    Replies: 0
    Last Post: 10-17-2014, 04:25 PM
  3. 96 Impala/Roadmaster/Caprice/Fleetwood/Z28/TransAm files as a .BIN
    By EyesofThunder in forum TunerCat Calibration Files
    Replies: 4
    Last Post: 01-22-2014, 02:09 PM
  4. 91-93 Brougham Roadmaster Ecm's 16136965
    By Tunedperformance in forum Buy - Sell - Trade - Wanted
    Replies: 0
    Last Post: 05-04-2012, 04:16 PM
  5. Replies: 14
    Last Post: 11-15-2011, 09:08 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •