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4.8L Vortec - I NEED MORE POWER! HOW?

This is a discussion on 4.8L Vortec - I NEED MORE POWER! HOW? within the Performance forums, part of the General Discussion category; I have a 4.8L vortec V8 and i wanna get the most power that I can get for my money. ...

  1. #1
    Registered User blackbeast's Avatar
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    Question 4.8L Vortec - I NEED MORE POWER! HOW?


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    I have a 4.8L vortec V8 and i wanna get the most power that I can get for my money. Computer Reprogrammers, throttle body spacers, mass air flow sensors? So many choices but I want as much power as possible. Does anyone have a motor like mine with some additions or does anyone have any advice? All help would be appreciated!
    Ben :fsc:
    Black 1999 Chevrolet Silverado LS
    4.8 V8 for some reason it lopes and gets about 12 mpg. Well maybe it's not a 4.8 Sport Side/Regular Cab,20's, 2-4 drop, a custom front end, an Infinity Kappa System, and FRESH BLACK PAINT!...

    My Car Domain

  2. #2
    A Moment In The Life 97Chebbie's Avatar
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    Re: 4.8L Vortec - I NEED MORE POWER! HOW?

    I don't have the same engine, but I think a Wester's or similar tune would give you the most bang for buck. Should gain you at least 25HP w/ 93 octane optimization. I think the newer vortecs respond better to tuning than the first gens. Torque management reduction would also help a lot too. Just do a search for Wester's and you should find all the info you need.

    97 C1500 Ext. Cab 5.7L, MSD 6A and Blaster Coil using Super Conductor wires, Flowmaster American Thunder catback, Volant Intake. Amsoil 5w-30 synthetic oil, and Wester's 93 Hot Tune.

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    Re: 4.8L Vortec - I NEED MORE POWER! HOW?


  4. #4
    Desert Boy FoxTrot's Avatar
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    Re: 4.8L Vortec - I NEED MORE POWER! HOW?

    You'll notice a pretty big difference if you go with a Westers or other custom tune. Some other things you might want to look into are Exhaust and Intake. Depending on what gears you have you might want to swap them out for something different. You could always look into a supercharger or nitrous also. You'd probably want to beef up your transmission too somewhere along the line.
    Lifted 03 with too much to list
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  5. #5
    Registered User jebx's Avatar
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    Re: 4.8L Vortec - I NEED MORE POWER! HOW?

    Don't get down on your 4.8 too much either, the 5.3 doesn't have much more power. My friend has an '01 ECSB 5.3 and we lined up. I actually took him with the 4.8 (i have '01 RCLB). We both have 3.73s 265/75R16 tires. I took him 2/2. Was really close, his headlights were right at my window.

    2001 RCLB Silverado 4x4 4.8L - Dynomax cat back - K&N FIPK

  6. #6
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    Re: 4.8L Vortec - I NEED MORE POWER! HOW?

    superchargers do a hell of alot to those enigines joe gibbs performance made a short bed full size with i think a 5 speed 4.8l supercharged and that thing would move

  7. #7
    formerly 01badgmc BADPEWTERZ's Avatar
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    Re: 4.8L Vortec - I NEED MORE POWER! HOW?

    whats the budget
    sts turbo would work great or a supercharger

    if tight budget id say catback and a good custom tune like ls1edit

    summer toy-2000z28 6speed ls1 h/c setup by slowhawk
    dezracing

  8. #8
    formerly fordsmoker
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    Re: 4.8L Vortec - I NEED MORE POWER! HOW?

    If you do not know how to tune yourself then do not get LS1edit,you can and will mess that engine and tranny up if you do not know what you are doin with it,get a Westers tune,I promise you that you will not be sorry you got it,it is that good.
    06 Crewcab 2wd 5.3 Wheatley tune using HPTuners,4.10,comp cam,Yank,longtubes,Heads and much more
    TXvortec350 AKA Wheatley

    03 Tahoe 5.3 Wheatley tune using HPTuners

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    Re: 4.8L Vortec - I NEED MORE POWER! HOW?

    i bought a hypertech 3 programer for mine and it like a new truck.

  10. #10
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    Re: 4.8L Vortec - I NEED MORE POWER! HOW?

    gears posi and a stall will net you a 1 sec reduction in your 1/4 mile time Garunteed.
    then get you a tune from a reputable tuner..
    loose some wieght off your truck.
    ..

    1999 Pewter Z28
    2005 Cadillac Escalade

    Sold - 2001 Onyx Black 4.8L Silverado Stepside "Thunder" 13.82@97MPH

 

 

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