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Type: Posts; User: rspears

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  1. Thread: EFI Tuning

    by rspears
    Replies
    19
    Views
    4,518

    Learned this week that it pays to open every file...

    Learned this week that it pays to open every file in the "Correction Curves", and to see and understand what's there. I found one that was bumping my timing +4 degrees on cold start (Spark vs Coolant...
  2. Thread: EFI Tuning

    by rspears
    Replies
    19
    Views
    4,518

    Yep, when your mind is wrapped around an old two...

    Yep, when your mind is wrapped around an old two plane mechanical distributor curve it takes a bit of explanation to embrace another dimension with MAP thrown in. Once you get you mind around the...
  3. Thread: EFI Tuning

    by rspears
    Replies
    19
    Views
    4,518

    Jerry, Tell Corey 'Thanks' for the F/A...

    Jerry,
    Tell Corey 'Thanks' for the F/A guidelines. After getting my spark map sorted out with Edelbrock I put my wide band back on and went out for some test runs with laptop in hand. Everything...
  4. Thread: EFI Tuning

    by rspears
    Replies
    19
    Views
    4,518

    Jerry, I spent about an hour on the phone with...

    Jerry,
    I spent about an hour on the phone with my Edelbrock guy, and he re-mapped my spark to reflect what they have seen on their tuning experience. I've uploaded that into my ECU, and I'll plug...
  5. Thread: EFI Tuning

    by rspears
    Replies
    19
    Views
    4,518

    Thanks Jerry, On the O2 adapter, it's a piece of...

    Thanks Jerry,
    On the O2 adapter, it's a piece of 1.75" tube that fits over a matching center core in my header, and the outer baffle plate is solid so everything flows through that center core tube....
  6. Thread: EFI Tuning

    by rspears
    Replies
    19
    Views
    4,518

    Yep, that's indeed the way to go. I think I'm up...

    Yep, that's indeed the way to go. I think I'm up to file #13, but #7 has alpha suffix's that add ten or twelve in the middle. I often do a "save as" with a "Test" added to the number, and then blow...
  7. Thread: EFI Tuning

    by rspears
    Replies
    19
    Views
    4,518

    Yep, you've got me pegged! :LOL: Heard a guy at...

    Yep, you've got me pegged! :LOL: Heard a guy at a cruise last night, "Yeah, ya' got to grow older, but ya' don't have to grow up!":D
  8. Thread: EFI Tuning

    by rspears
    Replies
    19
    Views
    4,518

    :LOL::LOL:OK, that brought a smile to my face:) ...

    :LOL::LOL:OK, that brought a smile to my face:) Too old for any other curves, Mike.:(
    Yeah, the EFI provides lots of adjustability, but I'm not sure changing jets might not be easier sometimes. ...
  9. Thread: EFI Tuning

    by rspears
    Replies
    19
    Views
    4,518

    After I had the fuel map sorted out I was still...

    After I had the fuel map sorted out I was still getting some occasional "stutter & pop" during acceleration. I started watching the O2 display and the handheld LED's closer, and what I found was...
  10. Thread: EFI Tuning

    by rspears
    Replies
    19
    Views
    4,518

    Russ, I had leaned out the map in the low to...

    Russ,
    I had leaned out the map in the low to mid-range and was getting "lean pop" from the headers. When I added some fuel it smoothed out, and brought a lot more power to the ground. Talking to...
  11. Thread: EFI Tuning

    by rspears
    Replies
    19
    Views
    4,518

    No, mine is Edelbrock's ProFlow XT which is an...

    No, mine is Edelbrock's ProFlow XT which is an all inclusive kit. Edelbrock uses the FAST system hardware in their ECU, but they package it and do their own application firmware and software. The...
  12. Thread: EFI Tuning

    by rspears
    Replies
    19
    Views
    4,518

    EFI Tuning

    I've been struggling to get my SBF 347 EFI tuned, and had made some adjustments to the injection map using the Handheld Calibrator LED's fed by the base narrow band O2 Sensor - it has Red (Lean),...
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