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02 Z-71 Suburban Need More Tq & Hp

This is a discussion on 02 Z-71 Suburban Need More Tq & Hp within the GM Trucks forums, part of the Vehicle Specific category; I HAVE A 2002 SUBURBAN Z-71 WITH A 5.3 LITTER... I HAVE SOME BOLT ON MODS THINKING ON MAKING A ...

  1. #1
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    Lt. pewter
    02 suburban

    Thumbs down 02 Z-71 Suburban Need More Tq & Hp

    I HAVE A 2002 SUBURBAN Z-71 WITH A 5.3 LITTER... I HAVE SOME BOLT ON MODS THINKING ON MAKING A LOT OF POWER... IT HAS SOME POWER ALSO HAS SOME PROBLEMS... IN ALMOST EVER START THE TRUCK WILL MISS ON IDLE UNTIL YOU REV THE ENGINE HARD AND THEN IT WILL STOP THE MISS AND IDLE NORMAL...
    LIST OF MODS...
    DESCREENED MAF
    AIR AID T.B. SPACER
    AIR AID INTAKE TUBE
    KN AIR FILTER WITH STOCK AIR BOX
    ELD SHORTY HEADERS
    NJK TR55 PLUGS
    DIABLO SPORT TURNER AND TUNED
    160' THERMOSTAT
    B&M TRANS COOLER WITH FAN
    FAIRBANKS SUPERIOR SERVOS WITH POWER VALVE...
    GOOD MID RANGE AND NOT TO STRONG ON THE LOW END.
    HP. 232 TQ 282...

  2. #2
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    Lt. pewter
    02 suburban

    Thumbs up

    I Also Been Looking At The Vhp Cams
    080 And 112 But Do Not Know What Cam Will Be A Better All Around Cam To Do Pulling And Have Fun...
    Has Eny Tried This Cams On Trucks...
    Eny Idea Of Hp Ratings With Cam Only... Thanks

  3. #3
    old timer blue02Z's Avatar
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    Navy Blue Metallic
    2002 Z28

    well first off, get a CAI, i personally love the new brute force from AEM , ditch the k&n and it prolly would be a good idea to out the screen back on the maf as it straightens out the air for a more accurate reading to the ecu. get a catback and if you wanna spend the money- a kenne bell twin screw.

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    Lt. pewter
    02 suburban

    I Will Look In To The Cia For Brute Force... Thanks
    Also To Incude To My List I Change Out The Stock Muffler For A Hooker Areo Chambered Muffler... I Thinking Of Making It With 2 Areo Chambered Mufflers And H-pipe 3"..., Instead Of One 3"...

  5. #5
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    Lt. pewter
    02 suburban

    Smile

    O.K, GUYS NEED A LITTLE HELP HERE...
    DUE TO SOME LOOKING UP ON 5.3L AND WANTING MORE POWER ON A CAM CHANGE...
    5.3L OEM CAM P/N 12560967... 285PH
    6.0 LQ9 OEM CAM P/N 12561721... 345PH OR HIGH OUT PUT 5.3L/330HP
    INT. .467 EXH. .479
    196' 201' $285.00 @ SDPC.COM
    CRANE CAM # 080 ON VINICIHIPERFORMANCE.COM HAS A
    @ .050 INT .551 @ 210* AND EXH .551 @ 218* FOR $ 379.00 WITH LSA @ 116*
    RPM 1,500>5,800 , ULTRA TORQUE...
    OR THE CRANE CAM # 112 WITH LSA @ 114* FOR $ 379.00
    RPM 1,700>6,000, LOAD OF TORQUE WITH GOOD TROTTLE RESPONSE....
    I NEED SOME HELP HERE IF ANY ONE HAS USED THIS CAMS ON A DD... I PLAN TO ONLY MAKE A CAM CHANGE WITH TIMING CHIAN AND VLAVE SPRINGS...
    THE ENGINE HAS 110,000 MILES AND IT IS RUNNING BEETER THAN WHEN IT WAS NEW WITH THE UPGRADES THAT I HAVE MADE, BUT I WOULD LIKE TO PUSH IT A LITTLE MORE " JUST ENOUGH TO KEEP IT CRISPY" IF YOU KNOW WHAT I MEAN...

  6. #6
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    dark teodore metallic
    2000 silverado

    i have a 01 sub, with a built trans, exhaust, cai, detroit truetrac, and a tune. the tune and trans made the biggest difference. i can bark 2nd on dry roads every time i gas it. and thats both tires. in the rain i can spin all 4 tires off the line. a tune will really liven up the 5.3, and firm up the shifts. you lose alot of time in between shifts

  7. #7
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    Lt. pewter
    02 suburban

    YA I BEEN TOLD TO GET RID OF THE HAND HELD AND GO WITH A TUNE LIKE NELSON OR WAIT4ME... I HAVE PUT THE SERVOS ON THE TRANS AND EVER NOW AND THEN I CAN BRAKE A LITE SPIN ON 2ND PLUS I GET A VERY FIRM SHIFT... I LIKE THE IMPROVE MENT THAT THE FAIR BANK SERVOS DID. WHAT DO YOU THINK IS BETTER TO DRIVE UP TO SAN ANTOINO,TX AND GET IT TUNED OR JUST ODER IT BY MAIL...

    THANKS FOR THE ADVISE, BUD...

  8. #8
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    Black
    2007 Silverado

    you'll get more out of a live tune tune...
    if you're lookin to swap motors, see if you can find a wrecked 3/4 ton with a lq4 6.0, slap it in, with a 212/218 high or low lift comp cam. should have loads of torque for pullin that trailer

    *edit* read your post wrong
    try somethink like this
    Comp 206/212 515/520 114 with some 1.8 rockers
    reading your list of mods above, i would change a few things
    AIR AID T.B. SPACER-doesn't give you any gain but makes a cool whistle-sell it
    AIR AID INTAKE TUBE-prolly will work-not much to be gained from a "good" CAI
    KN AIR FILTER WITH STOCK AIR BOX
    ELD SHORTY HEADERS-not any better hp wise the stock manifolds-sell and get some lt's
    NJK TR55 PLUGS-ok
    DIABLO SPORT TURNER AND TUNED-sell it and get atleast mail order tune
    160' THERMOSTAT-prolly hurting your gas mileage a little-stock would prolly be fine for your app
    B&M TRANS COOLER WITH FAN-the bigger the better
    FAIRBANKS SUPERIOR SERVOS WITH POWER VALVE...
    GOOD MID RANGE AND NOT TO STRONG ON THE LOW END.
    2007 RCSB 5.3L

  9. #9
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    Lt. pewter
    02 suburban

    THANK THAT IS A BIG HELP WHEN YOU HAVE USED HIGH PERFORMANCE AND KNOW WHAT WORKS AND WHAT DOES NOT...
    THE BIG IDEA IS THERE OUT THERE FOR YOUR MONEY AND TO SEE WHO GETS IT FIRST...
    YOU CAN MAKE MANY BAD JUDGMENTS WITH PERFORMACE PRODUCTS... OF COURSE THERE IS NO LIMIT TO PERFORMACE, YOU MAKE IT TO STEP # 1 AND THEN YOU WHAT TO JUMP TO STEP # 3 AND SOME THING IS ALWAY WRONG...

    THANKS VERY MUCH... THIS WILL HELP A LOT HERE...

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