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low end power

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by grk76, Jul 10, 2001.

  1. grk76

    grk76 Registered Member

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    I have noticed that off the line I have little power, but when running 20mph or over, I get plenty of power when I punch th gas. I am guessing vaccuum, air intake, or mixture problem. I checked vaccuum hoses but seem to be ok. I have a large k&n, but afraid that I am getting too much hot air. or maybe I just dont have my secondaries turned up enough.
     
  2. Emmettology 101

    Emmettology 101 3/4 ton status

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    Fill in your profile so we know hwat you are working on.

    If the engine is not stock, the cam you are running may not make good low end power.. Just a thought...

    I have run Big K&N's on stock engines without a power lose..

    <font color=green>MIKE</font color=green> - "Hukd on fawnics,werkd fer me!"
    <A target="_blank" HREF=http://www.geocities.com/emmettology101>http://www.geocities.com/emmettology101</A>
     
  3. Leadfoot

    Leadfoot 1/2 ton status Premium Member

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    It's NOT your K&N, it will improve power throughout all RPM's. A low restriction exhaust on the otherhand will kill low end torque. I have a feeling though that you have too high gearing (low numerically) for your size tires.

    If you didn't build it yourself, how can you call it yours.......?
     
  4. morphed86k10

    morphed86k10 1/2 ton status

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    I'd second Leadfoot, you might not have enough gear for the tire size you are running. That can cause poor off the line performance.
     
  5. riz

    riz 3/4 ton status

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    <font color=purple>Gear ratio / tire size will get ya every time.......... I've got the same thing going with my 33's .......... need to change my ratio so it better suits my new tires ............ then look out !!!!

    L8r,
    . Riz . <A target="_blank" HREF=http://www.geocities.com/rizmonkey>http://www.geocities.com/rizmonkey</A>
     
  6. James90

    James90 1/2 ton status

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    I got 2.73s with 31s and am a little lacking in the take off that is msot likely you porb if you motor is runing good

    F_ck the whales Save CK5!!!!!!!!!!

    http://photos.yahoo.com/jwileywilliamson
     
  7. dyeager535

    dyeager535 1 ton status Premium Member

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    If you've got bad gears, even though there is no way to fix the sluggishness from a stop without swapping them, shifting the tranny like a manual, thus keeping the RPM's up, will make a big difference. You have to get the motor BEYOND its peak output before shifting for the best results. In almost all cases, factory trannies shift even before the peak, and thus you are so low in the engines power band, and in MPH, you are again fighting the gears.

    Dorian
    My tech/links page: <A target="_blank" HREF=http://www.dorianyeager.com/index2.html>http://www.dorianyeager.com/index2.html</A>
    No anti-theft measures on your truck? No pity when its stolen
     

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