Recent content by jpoole

  1. J

    1986 CCC 454 Convert to TBI 454

    I know this is a little old now but are you still looking for 454 TBI stuff? I have a 1990 454 ECM that had the 3l80(has the kickdown calibration) I also have the intake with the aluminum adapter. I also have the exhaust Y pipe. You can have this stuff if you want just let me know. I put a...
  2. J

    Disabled 4 cylinders on a TBI motor :) MPG Gain???

    Not anything from me. I sold the burb and the '90 1 ton was a no go-the 454 was toast. I put a small block in it and am just leaving it as is. I do have a 97 c3500 that I might do some stuff with but I'm snowed with so much other crap right now.
  3. J

    Disabled 4 cylinders on a TBI motor :) MPG Gain???

    Yes sir! It's worth it just to see how different people respond when I tell them what I've done. Some are intrigued while others shake their heads and some find it blasphemous.
  4. J

    Disabled 4 cylinders on a TBI motor :) MPG Gain???

    8 is great Well it was fun but I was tired of the lack of power so I put the 4 disabled ones back in service. I ran it with 4 for about 1500 miles and there doesn't seem to be any ill effects from doing it. I also just bought a '90 C3500 for $700 that has a tbi 454. Guess what I'm thinking?
  5. J

    Disabled 4 cylinders on a TBI motor :) MPG Gain???

    https://www.youtube.com/watch?v=MpNtASxKDV4
  6. J

    Disabled 4 cylinders on a TBI motor :) MPG Gain???

    O2 volts I did some datalogging yesterday and confirmed in closed loop that O2 voltage cycles up and down between .1 and .9 volts
  7. J

    Disabled 4 cylinders on a TBI motor :) MPG Gain???

    That's a good point however my motor was properly tuned already(new plugs, wires, cap and rotor, etc and timing was correct. 13.5 is what I consistently got on my commute. I have gotten 17 before on highway driving with all 8. I had a 3+ mpg improvement on my commuting so I will get my $4 back...
  8. J

    Disabled 4 cylinders on a TBI motor :) MPG Gain???

    Thanks...that's really all it is. My wife hates my burb. If I destroy it, she will be happy :) I am looking at getting a cable now for datalogging.
  9. J

    Disabled 4 cylinders on a TBI motor :) MPG Gain???

    Right, it doesn't know I cut half of the air out just like it doesn't know I cut half of the fuel out.
  10. J

    Disabled 4 cylinders on a TBI motor :) MPG Gain???

    I would only need that if I were running both injectors Yes, it's stock.
  11. J

    Disabled 4 cylinders on a TBI motor :) MPG Gain???

    You are very wise, Jim:waytogo: That's exactly what I need to do
  12. J

    Disabled 4 cylinders on a TBI motor :) MPG Gain???

    Are you talking about the lobes for the disabled cylinders being "ate out" or the journals?
  13. J

    Disabled 4 cylinders on a TBI motor :) MPG Gain???

    13.5 mpg up to 16.8 mpg is a significant increase for me O2 sensor doesn't look at volume and since there is no extra air being put in...
  14. J

    Disabled 4 cylinders on a TBI motor :) MPG Gain???

    I've never seen one of those on a tbi. I figured the IAC would catch it but it doesn't.
  15. J

    Disabled 4 cylinders on a TBI motor :) MPG Gain???

    Definitely better with no a/c! I have to give it a good bit more throttle to maintain the same speed.
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