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  1. #11
    Legend


    Enkeiavalanche's Avatar
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    Apr 2010
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    Piermont,NY, back in Northern NJ now, But may be in IL soon....
    Posts
    5,319

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    So going from 4 to 8 full time Better MPG's???? and as for sound??? I turned it off with my Superchips and MPG's went down Pickup was much better and as for sound Never noticed with the Corsa and K&N
    08 Z71 Avalanche Mods to date: K&N CAI,Hellwig Swaybars and End Links, Corsa Sport Exhaust, Superchips Programer,IPCW LOF & 3rd brake light and tails, AMI Gas door,Show Hooks and Door locks, Enkei Wheels, with Pirelli tires, StreetScene Bowties, Grant Steering wheel,Muth signal mirrors,SSBC Big Brake kit,Huskyliner Mug gards,Floor mats and Hood shield, McGard Lug nuts and locks, Bedrug, Cervini's Ram Air hood,35watt HID Fog lights, Sylvania bulbs all around ZXE's Highs and Lows, WhiteNight Back up lights,Sirius and HD Radio, SnugTop sitting on deck now Got a Softopper on now,Tempress Boat Hatches.... New Bilstein shocks are on... New Mods coming soon..... X

  2. #12

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    Thats what ive heard...i dont like the way it changes tone from 8 to 4 going down the highway...with my exhaust you can totally tell

    2009 Chevrolet Silverado 1500 LT Z71 Crew Cab "All-Star Edition"

    Line-X'd Bed
    Line-X'd Custom Brush Guard(Heavy Duty)
    5.3L Flex Fuel
    Factory Black Running Boards
    BF Goodrich All-Terrain KO's(265/65R18)
    2" Rough Country Leveling Kit
    EGR In-Channel Vent Visors
    Exterior PLUS Package
    Interior PLUS Package
    K&N Drop-In Air Filter
    Bowtie Mud Flaps
    Cat-Back Dual Exhaust
    Black Bowties
    DeeZee Toolbox(Debadged)
    Diablo Sport Predator(AFM Disabled)
    ProFlaps
    Towing Mirrors
    Next Planned Mods
    Bigger Tires
    Aftermarket Rims

  3. #13

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    Quote Originally Posted by ChevyBoy2009 View Post
    Thats what ive heard...i dont like the way it changes tone from 8 to 4 going down the highway...with my exhaust you can totally tell
    I can tell with my exhaust, I just ignore it.

    Quote Originally Posted by ChevyBoy2009 View Post
    Im curious how the truck will run with AFM off...i cant wait for my exhaust to sound normal now (sounds like a 4cyl on steroids when AFM is on)...ive heard i could gain a few mpg's with it off?
    You heard wrong. The engineers that designed the system to get MPGs.

    2013 Silverado LTZ White Diamond Crew Cab


    Mods:
    Advent OGM1 Navigation
    Husky Liners GearBox Underseat Storage
    Airaid MIT
    EGR Rail Caps
    K&N Air Filter
    Flowsound 40 Muffler
    Hypertech Max Energy Tune (only top end limiter removed and AFM disabled)
    Chrome Tailgate Handle Cover
    TonnoPro HF-155 Tonneau Cover
    WeatherTech Front and Rear Splash Guards
    Husky Liners X-Act Contour Floor Liners
    WeatherTech Side Window Deflectors

  4. #14

    Default

    the 8>4 switch drove me nuts when i got my exhaust done, set my tuner to run in v8 mode all the time. in certain situations i the mpg is just as good or better then having the afm on, but i would say that it did better with it on. my average went from 15.5 to 14.8 or so. not that much of drop.

    Alex


    2011 GMC Sierra SLE 5.3 Z71 4X4 Stealth Gray Metallic / 2004 Chevy Impala LS 3.8 Cappuccino

    Tow mirrors - Diablew Tuned - Flowmaster Regular 40 - Ready Lift 2.5' lift - BFG LT A/T K/Os - Carr Light Wing - TruckLite LED lights - Optima Red Top - 50% Front Window Tint - Line-X bedliner - Airaid MIT - Tekonsha P2 - ARS Billet Grill - Fia custom fit seat covers

  5. #15

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    Quote Originally Posted by ChevyBoy2009 View Post
    Well ive been looking for one for a week or so to delete AFM...bought this NEW in box on ebay for 110 bucks today!...i didnt need anything fancy,just wanted to delete AFM and maybe tranny shift points so its more driveable

    Attachment 54236

    you can NOT adjust any tcm/tranny settings with a predator... you can not change anything like shift pressure, shift points, tranny torque management, etc etc... predator's never had tcm/tranny support for 2007+ vehicles...

    plus, all predators are dead and gone - they were all discontinued about 1.5 years ago now...

    for tcm/tranny support, plus newer updated tune files, easier data logging, more parameters available for custom tuning, etc etc - you would need to get a diablosport inTune or Trinity...

    you won't be able to do anything for the tranny, etc with the predator....

    so yeah, just an fyi...

    - - - Updated - - -

    Quote Originally Posted by stchman View Post
    You heard wrong. The engineers that designed the system to get MPGs.
    uhhhh, not really....

    myself, as well as several hundreds/thousands of others, get better mileage with it disabled/off... the DOD/AFM only helps you if you do a LOT of highway driving, all the time... I gained 2 mpg just by disabling the DOD, and so have many many many others...

    if you do more town/city driving than highway driving, then it doesn't help and it actually hurts... plus there's the whole oil burning issue that it causes every time it switches between 4/8 cyl. modes, which was even confirmed by GM in a technical service bulletin...

    so no, DOD/AFM does NOT always help you... plus disabling it helps to improve throttle response....
    06MonteSS


    2014 Camaro SS - 2SS, RS pkg., short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake

  6. #16

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    Quote Originally Posted by 06MonteSS View Post
    you can NOT adjust any tcm/tranny settings with a predator... you can not change anything like shift pressure, shift points, tranny torque management, etc etc... predator's never had tcm/tranny support for 2007+ vehicles...

    plus, all predators are dead and gone - they were all discontinued about 1.5 years ago now...

    for tcm/tranny support, plus newer updated tune files, easier data logging, more parameters available for custom tuning, etc etc - you would need to get a diablosport inTune or Trinity...

    you won't be able to do anything for the tranny, etc with the predator....

    so yeah, just an fyi...

    - - - Updated - - -



    uhhhh, not really....

    myself, as well as several hundreds/thousands of others, get better mileage with it disabled/off... the DOD/AFM only helps you if you do a LOT of highway driving, all the time... I gained 2 mpg just by disabling the DOD, and so have many many many others...

    if you do more town/city driving than highway driving, then it doesn't help and it actually hurts... plus there's the whole oil burning issue that it causes every time it switches between 4/8 cyl. modes, which was even confirmed by GM in a technical service bulletin...

    so no, DOD/AFM does NOT always help you... plus disabling it helps to improve throttle response....

    Like i said...i pretty much JUST want to delete AFM...tranny shift points i really dont care about...if i wanna do that down the road ill sell this one a get a trinity or something...for 110 bucks plus free shipping for a NEW in box one just to delete AFM...cant complain to much...My thought is if your truck is a V8,you might as well use all 8...just like my last trucks

    - - - Updated - - -

    This is what the site said about my tuner...

    The predator is a state of the art, high performance tuning flash programmer in a sleek handheld design. Once connected to the vehicle, the predators internal computer recognizes the vehicles PCM and automatically picks the proper tuning files designed specifically for that PCM. Inside the predator's memory are the actual tuning files that optimize spark timing and air/fuel ratio curves. The transmission parameters are remapped to improve the shift characteristics such as shift firmness and shift points. Unlike other 'tuners', DiabloSport's programming is performed in very small increments throughout the entire RPM range, for a smoother, wider and a more predictable power delivery. DiabloSport engineers spend many hours on the dyno, street and track to ensure the tunes provided with the predator are the best they can be.
    Emissions Legality: 49-State Legal
    Tuning Type: Economy/Performance/Towing
    Octane Rating: 87 To 93 Octane
    Reads Diagnostic Trouble Codes: Yes
    Clears Diagnostic Trouble Codes: Yes
    Transmission Tuning: Tunes Automatic Transmissions Shift Firmness and Shift Point
    Includes Rev Limiter Controls: Yes
    Includes Speedometer Calibrator: No
    Includes Top Speed Limiter: Yes


    Features

    • Internet Updatable. Free Firmware Updates Via The Internet
    • Trouble Code Read/Clear With Full Text Description
    • Log Up To 30 Minutes Of High Speed Vehicle PID Data
    • Large Backlit Display
    • Holds Up To 5 Custom Tunes
    • Add 1 To 2 Miles Per Gallon To Your Fuel Economy
    • Power Gains Up To 30+ Horsepower

    2009 Chevrolet Silverado 1500 LT Z71 Crew Cab "All-Star Edition"

    Line-X'd Bed
    Line-X'd Custom Brush Guard(Heavy Duty)
    5.3L Flex Fuel
    Factory Black Running Boards
    BF Goodrich All-Terrain KO's(265/65R18)
    2" Rough Country Leveling Kit
    EGR In-Channel Vent Visors
    Exterior PLUS Package
    Interior PLUS Package
    K&N Drop-In Air Filter
    Bowtie Mud Flaps
    Cat-Back Dual Exhaust
    Black Bowties
    DeeZee Toolbox(Debadged)
    Diablo Sport Predator(AFM Disabled)
    ProFlaps
    Towing Mirrors
    Next Planned Mods
    Bigger Tires
    Aftermarket Rims

  7. #17

    Default

    the site lied... they probably just copied that from a different model predator's description and use it for all of their predator descriptions heh...

    there is no tcm/tranny support at all with the U7194 model predator....


    as for other things they say about it that are wrong:

    yes you can adjust the tire size and gear ratio to correct/calibrate the speedometer...

    it does not log for 30 minutes... it will record a log for 3-5 minutes....

    it has an 87 octane tune, and a Diablo Tune - the diablo tune is made for 91 octane gas...

    and hp/tq increases are not up to 30, heh...

    on 87 octane with 87 tune, you'll gain about 13-16 hp/tq

    on 91+ octane and diablo tune, you'll gain about 20 hp/tq...
    Last edited by 06MonteSS; 08-25-2013 at 11:47 AM.
    06MonteSS


    2014 Camaro SS - 2SS, RS pkg., short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake

  8. #18

    Default

    Quote Originally Posted by 06MonteSS View Post
    the site lied... they probably just copied that from a different model predator's description and use it for all of their predator descriptions heh...

    there is no tcm/tranny support at all with the U7194 model predator....


    as for other things they say about it that are wrong:

    yes you can adjust the tire size and gear ratio to correct/calibrate the speedometer...

    it does not log for 30 minutes... it will record a log for 3-5 minutes....

    it has an 87 octane tune, and a Diablo Tune - the diablo tune is made for 91 octane gas...

    and hp/tq increases are not up to 30, heh...

    on 87 octane with 87 tune, you'll gain about 13-16 hp/tq

    on 91+ octane and diablo tune, you'll gain about 20 hp/tq...
    Thats the 2 things i wanted it to do...change tire size and AFM delete...87 octane tune a pretty decent tune(just wondering)?

    2009 Chevrolet Silverado 1500 LT Z71 Crew Cab "All-Star Edition"

    Line-X'd Bed
    Line-X'd Custom Brush Guard(Heavy Duty)
    5.3L Flex Fuel
    Factory Black Running Boards
    BF Goodrich All-Terrain KO's(265/65R18)
    2" Rough Country Leveling Kit
    EGR In-Channel Vent Visors
    Exterior PLUS Package
    Interior PLUS Package
    K&N Drop-In Air Filter
    Bowtie Mud Flaps
    Cat-Back Dual Exhaust
    Black Bowties
    DeeZee Toolbox(Debadged)
    Diablo Sport Predator(AFM Disabled)
    ProFlaps
    Towing Mirrors
    Next Planned Mods
    Bigger Tires
    Aftermarket Rims

  9. #19

    Default

    Quote Originally Posted by 06MonteSS View Post
    uhhhh, not really....

    myself, as well as several hundreds/thousands of others, get better mileage with it disabled/off... the DOD/AFM only helps you if you do a LOT of highway driving, all the time... I gained 2 mpg just by disabling the DOD, and so have many many many others...

    if you do more town/city driving than highway driving, then it doesn't help and it actually hurts... plus there's the whole oil burning issue that it causes every time it switches between 4/8 cyl. modes, which was even confirmed by GM in a technical service bulletin...

    so no, DOD/AFM does NOT always help you... plus disabling it helps to improve throttle response....
    If you are doing a lot of non-highway driving, the engine should rarely go into V4.

    I am going to do an experiment, I am going to use my Hypertech to disable AFM and see if I get better MPGs. I currently get ~18 in city/highway combo driving. I will give it a week.

    2013 Silverado LTZ White Diamond Crew Cab


    Mods:
    Advent OGM1 Navigation
    Husky Liners GearBox Underseat Storage
    Airaid MIT
    EGR Rail Caps
    K&N Air Filter
    Flowsound 40 Muffler
    Hypertech Max Energy Tune (only top end limiter removed and AFM disabled)
    Chrome Tailgate Handle Cover
    TonnoPro HF-155 Tonneau Cover
    WeatherTech Front and Rear Splash Guards
    Husky Liners X-Act Contour Floor Liners
    WeatherTech Side Window Deflectors

  10. #20
    Legend


    mfleetwood's Avatar
    Join Date
    Jul 2010
    Location
    Denver, CO
    Posts
    7,213
    Blog Entries
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    Great price on the Predator (relatively speaking). I know that the newer tuners are out there but my older Predator works just fine, especially after Lew custom tuned it. Nice score, you'll be happy with it.


    Mike (Denver, CO) - 2008 Sierra 1500 Z71 SLE 5.3L 4WD

    SUSPENSION: Rancho 4" Suspension Lift; Rancho RS9000XL Shocks; Rancho Skid Plates; Rancho MyRide Wireless Shock Controller;
    TIRES:
    BFG All Terrain KO 315/70/17
    DRIVE TRAIN: 4.56 Gears; Detroit TrueTrac Differential; True Cool 40k Transmission Cooler
    PERFORMANCE: DiableSport Predator Tuner; Custom Tuned by Diablew; Magnaflow Exhaust; AFE Cold Air Intake
    ELECTRONICS: Kenwood DNX6180 Touchscreen; Subthump box w/10" Kicker; Driver Information Center (DIC); Rear View Camera
    ACCESSORIES: Westin Brush/Grill Gaurd; Westin Nerf Bars; Truxedo Tonneau; 20% Tint; Tow Mirrors w/Heat & Signals

  11. Thanks ChevyBoy2009 thanked for this post
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