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Thread: Speed Density IS SIMPLER THEY SAID LOL

  1. #1
    Potential Tuner LSCHEVY254's Avatar
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    Speed Density IS SIMPLER THEY SAID LOL

    Hey Guys I have a ss2 Cam installed in my 6.0 with 243 heads with pac 1218 springs flex fuel injectors. I can get it to idle and even hold an idle in drive but any throttle applied it falls on its face hooked up wideband it suggest that it is super lean i am new to tuning a cam and with a wideband but i am determined i have included a copy of the tune file as well as a short log of how it reacts when pedal is applied. when i release off the pedal vacum comes back and car wants to move.not sure where i should start adding or pulling fuel or if its the air flow. Thanks in Advance


    COBBLER BASE 11-25-20 swaps rescue sd changes1.hpt11-25-20 almosthad it.hpl

    82 Chevy C10 5.3 LS/ th350 Speed Engineering long tube headers. Flowmaster super 10 Muffler
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    84 Chevrolet Caprice Classic Landau 5.3/4l60e 24 inch Iroc Replicas
    86 Oldsmobile Cutlass Supreme Brougham Coupe 6.0/TH350, Flex Fuel Injectors, 243 Heads, Pacesetter Headers 70-2256,
    LS7 Lifters, PAC 1218 Springs Sloppy Stage 2 Cam

  2. #2
    Senior Tuner Ben Charles's Avatar
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    Watch Map KPA and it moves along with RPM, helps if you have it chart view so you can VISUALLLY see what it’s doing!

    Email Tunes, [email protected]
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  3. #3
    Potential Tuner LSCHEVY254's Avatar
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    should it be increasing or falling? if falling that means too much air or not enough fuel?

    82 Chevy C10 5.3 LS/ th350 Speed Engineering long tube headers. Flowmaster super 10 Muffler
    Cold Air Intake IFS CROSS MEMBER 22 inch Ridler 695 Wheels 22x9 and 22x10.5
    84 Chevrolet Caprice Classic Landau 5.3/4l60e 24 inch Iroc Replicas
    86 Oldsmobile Cutlass Supreme Brougham Coupe 6.0/TH350, Flex Fuel Injectors, 243 Heads, Pacesetter Headers 70-2256,
    LS7 Lifters, PAC 1218 Springs Sloppy Stage 2 Cam

  4. #4
    Senior Tuner Lakegoat's Avatar
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    Is your injector data correct? And do you have O2 sensors? Seems like your Injectors are on for a long time at idle.
    2000 Camaro SS 2015 L83 port injected, Whipple 3.0, 4L80E, 8.8 Ford
    2013 Silverado 5.3, 6L80k 8.8

  5. #5
    Potential Tuner LSCHEVY254's Avatar
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    yes i have the flex injectors which are 33 no o2 sensors at the moment just have the wide band hooked up

    82 Chevy C10 5.3 LS/ th350 Speed Engineering long tube headers. Flowmaster super 10 Muffler
    Cold Air Intake IFS CROSS MEMBER 22 inch Ridler 695 Wheels 22x9 and 22x10.5
    84 Chevrolet Caprice Classic Landau 5.3/4l60e 24 inch Iroc Replicas
    86 Oldsmobile Cutlass Supreme Brougham Coupe 6.0/TH350, Flex Fuel Injectors, 243 Heads, Pacesetter Headers 70-2256,
    LS7 Lifters, PAC 1218 Springs Sloppy Stage 2 Cam

  6. #6
    Senior Tuner Lakegoat's Avatar
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    The reason that I asked was that there are 3 other tables to be changed when you change injectors. My question is --did you get all of the correct data entered?
    2000 Camaro SS 2015 L83 port injected, Whipple 3.0, 4L80E, 8.8 Ford
    2013 Silverado 5.3, 6L80k 8.8

  7. #7
    Potential Tuner LSCHEVY254's Avatar
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    i dont belive so what are the 3 other tables and where should i look for the data to put in them?

    82 Chevy C10 5.3 LS/ th350 Speed Engineering long tube headers. Flowmaster super 10 Muffler
    Cold Air Intake IFS CROSS MEMBER 22 inch Ridler 695 Wheels 22x9 and 22x10.5
    84 Chevrolet Caprice Classic Landau 5.3/4l60e 24 inch Iroc Replicas
    86 Oldsmobile Cutlass Supreme Brougham Coupe 6.0/TH350, Flex Fuel Injectors, 243 Heads, Pacesetter Headers 70-2256,
    LS7 Lifters, PAC 1218 Springs Sloppy Stage 2 Cam

  8. #8
    Tuning Addict 5FDP's Avatar
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    Injector flow rate, min injector pulse, short pulse adder and offset vs volts data.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  9. #9
    Potential Tuner LSCHEVY254's Avatar
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    ok thanks and i should be able to get that data off the donor vehicle for the injectors right? What changes need to be made going from a returnless to return style set up if any?

    82 Chevy C10 5.3 LS/ th350 Speed Engineering long tube headers. Flowmaster super 10 Muffler
    Cold Air Intake IFS CROSS MEMBER 22 inch Ridler 695 Wheels 22x9 and 22x10.5
    84 Chevrolet Caprice Classic Landau 5.3/4l60e 24 inch Iroc Replicas
    86 Oldsmobile Cutlass Supreme Brougham Coupe 6.0/TH350, Flex Fuel Injectors, 243 Heads, Pacesetter Headers 70-2256,
    LS7 Lifters, PAC 1218 Springs Sloppy Stage 2 Cam