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  1. #21

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    Quote Originally Posted by GaryL View Post
    Welcome to the site.

    Do you know what gears you have in it? It sounds like you may not have enough gearing for the size tires you are running.

    You might also check the timing, if it is off it could cause sluggishness.
    BTW ... Nice looking Sub. Are those 285 75's? Any rub issues? Any lift?
    02 Chevy Suburban 1500, 4:10 Difs, Stock for now.

    02, CC, LB, 4x4, LB7, 145K Miles, EFI Live Tuned by Nick at Duramaxtuner, Banks Ram-Air w/ superscoop (Plate Removed), Banks Big Head, AirDog 100, Pillar Gauges, 16x8 Eagle wheels, 285 BFGs, Bilstein 5100's, Ride Rite Air Bags 5" Exhaust, 4" downpipe, Prodigy Brake Controller, Goose Neck.

    02 Grand Prix GT.

  2. #22

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    Quote Originally Posted by trailshredder View Post
    BTW ... Nice looking Sub. Are those 285 75's? Any rub issues? Any lift?

    Thanks. Yes, 285/75/16's and a 3 inch suspension lift. I put the tires on before the lift and did not have any rubbing at all.
    Gary

    99 K 1500 Suburban
    78 Silverado Big 10 w/factory 454
    00 S-10 Blazer
    1976 Trans Am
    1980 Honda CB900 Custom

  3. #23

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    im going to get a tune-up kit as soon as i can get more money and i did the injector cleaner last night. trans fluid is good. and i went and got a RPM TACH for it so i need to hook that up.. A.S.A.P. just trying to look for the right way to do that... lol oh p.s. thanks so much for all the help
    BEAST

  4. #24

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    Quote Originally Posted by dwill3015 View Post
    Put a throtlle body spacer on it as well as a Hyperchip performance chip and either turn the top to your stock aril cleaner upside down or get an aftertmarket one. I have an 87 K5 Blazer with a new GM crate motor, 4-inch lift and 35's. Stock gearing is 3.73's and it was sluggish untill I did those 3 in-expensive mods and it was like night and day difference with low-end performance.
    i put some seafoam in it filled it up and turned the top of the stock air cleaner upside down ... and WOW!!! what a difference!!! so now i know i want to put ram air a throtlle body spacer and a Hyperchip performance chip on it... SOON!! thanks so much for all the help!
    BEAST

  5. #25
    Jr. Apprentice
    Join Date
    Mar 2009
    Location
    stamford,ct
    Posts
    14

    Default

    it could be the TBI cable or possibly just needs a tune up

  6. #26
    Master Mechanic daddytech's Avatar
    Join Date
    Mar 2008
    Location
    Portland TN
    Posts
    672

    Default

    as for that pop when you were turning did you find out what that was from???

    the sea foam is GOLDEN i put some in about every 40 - 50,000 miles wheather it needs it or not

    as for your filter deal, you could get the same results out of putting in a K&N filter and leaving your air cleaner cover flipped over the right way.

    the TBI Spacer will help a little with the power but more with the fuel economy, Since it's a 5.7 a flowmaster muffler will help too. Changing out the fuel filter is simple and may be needed also.

    Another thing that worked great in my tahoe and made a noticable difference was I put in a set of E3 sparkplugs they added power and helped a tiny bit with the economy also. I don't have a race truck or anything now but it runs really well.

    ALways use Mobil 1 and Lucan treatment in everything too, Oil, Transmission, rear end, and power steering. both of those are like gold also for making your vehicle last longer.

    Lastly you want to let the truck WARM UP when you first start it up each time before you go driving it. I don't know why but no one wants to take 5 minutes or so to let them warm up properly everyday, they just crank it up and go and the oil hasn't had a chance to circulate properly that way yet.

  7. #27

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    Quote Originally Posted by skinut88 View Post
    it could be the TBI cable or possibly just needs a tune up
    its new... like maybe 3 weeks old
    BEAST

  8. #28

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    Quote Originally Posted by daddytech View Post
    as for that pop when you were turning did you find out what that was from???

    the sea foam is GOLDEN i put some in about every 40 - 50,000 miles wheather it needs it or not

    as for your filter deal, you could get the same results out of putting in a K&N filter and leaving your air cleaner cover flipped over the right way.

    the TBI Spacer will help a little with the power but more with the fuel economy, Since it's a 5.7 a flowmaster muffler will help too. Changing out the fuel filter is simple and may be needed also.

    Another thing that worked great in my tahoe and made a noticable difference was I put in a set of E3 sparkplugs they added power and helped a tiny bit with the economy also. I don't have a race truck or anything now but it runs really well.

    ALways use Mobil 1 and Lucan treatment in everything too, Oil, Transmission, rear end, and power steering. both of those are like gold also for making your vehicle last longer.

    Lastly you want to let the truck WARM UP when you first start it up each time before you go driving it. I don't know why but no one wants to take 5 minutes or so to let them warm up properly everyday, they just crank it up and go and the oil hasn't had a chance to circulate properly that way yet.
    i never did find out what was with the steering.. and when i do a tuneup on it i will be using the e-3 plugs and MSD cap and so-on...
    BEAST

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