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Cure for understeer?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by xxaarraa, Dec 6, 2010.

  1. Dec 6, 2010 at 5:42 AM
    #1
    xxaarraa

    xxaarraa [OP] Well-Known Member

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    I know this is a high center of gravity - too heavy - too slow - not meant for it - pick up truck, but is there any way to reduce the understeer? I already added the Hellwig sway bar in the back, billies 5100 in front, 265 tires and have the track widened at all 4 corners with Spidertrax, but it still pushes out through the corners a bit too much for my liking.

    Any known remedies? Within reason of course - please don't ask me to sell and get an M3!
     
  2. Dec 6, 2010 at 6:02 AM
    #2
    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

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    Stiff coils and/or lowering and stickier tires? Since you've already added all that other stuff to your truck, I'm not sure what else you can do besides build it out like an X-Runner. Other options may be a thicker sway bar up front, taller rims and lower profile tires and changing your alignment specs to something more similar to a performance car.
     
  3. Dec 6, 2010 at 10:49 AM
    #3
    aficianado

    aficianado Well-Known Member

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    how do you even corner the truck fast enough to induce understeer? your front end pushes into corners? i mean you are turning, and the truck wants to go straight?

    kiss the brakes and transfer some weight onto the fronts..
     
  4. Dec 6, 2010 at 10:52 AM
    #4
    cactuscorn

    cactuscorn Another FNG

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    this might clear things up....

    verne's crash.jpg
     
  5. Dec 6, 2010 at 10:55 AM
    #5
    swissrallyman

    swissrallyman Well-Known Member

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    Reduce from tire pressure by 2 psi! But understeer is much safer than oversteer...
     
  6. Dec 6, 2010 at 11:07 AM
    #6
    xxaarraa

    xxaarraa [OP] Well-Known Member

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    Your post implies you have to be going really fast to feel understeer. In my opinion, understeer can be felt even at low speeds. I take on and off ramps regularly at 50-60 (as do most of us) and you can definitely feel the front end pushing out.

    Maybe my standards/expectations are too high, but was wondering if others have known cures.
     
  7. Dec 6, 2010 at 11:07 AM
    #7
    cactuscorn

    cactuscorn Another FNG

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    yet not nearly as fun
     
  8. Dec 6, 2010 at 11:12 AM
    #8
    cactuscorn

    cactuscorn Another FNG

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    in most situations thats a really bad idea. a gentle lift will plant the front without tossin the back around to show ya where the guardrail is.
     
  9. Dec 6, 2010 at 11:23 AM
    #9
    YotaDan

    YotaDan Dan Vendor

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    looking at your "Previously" list. I don't think your issue can be resolved.
     
  10. Dec 6, 2010 at 11:24 AM
    #10
    aficianado

    aficianado Well-Known Member

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    yea..all my over/understeer experience is on a racetrack..in a porsche.

    having done that, i dont think the street brings anything to the table. when i say kiss the brake, i mean throttle lift, and maybe touching the brake..works awesome on an autocross course :)
     
  11. Dec 6, 2010 at 11:26 AM
    #11
    aficianado

    aficianado Well-Known Member

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    not really fast..but fast enough to tax the traction.
    i've cornered fast in the tacoma...i have never felt the front push. i design and build off/on ramps.
     
  12. Dec 6, 2010 at 11:28 AM
    #12
    blackhawke88

    blackhawke88 wo ai ni bao bei ^_^

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    more skinny pedal
     
  13. Dec 6, 2010 at 11:33 AM
    #13
    cactuscorn

    cactuscorn Another FNG

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    scaring pylons in a asp 911 (just guessing) is a bit diff than a lifted 4wd tacoma at 60mph on a 12' wide ramp 70' in the air but i get yer point. i drove a little myself if ya couldnt tell.
     
  14. Dec 6, 2010 at 11:39 AM
    #14
    cactuscorn

    cactuscorn Another FNG

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    trust us, they can push like chuck norris acts. badly. from there its just a matter of control and "throttle-lift-brake-repeat" isnt it in a high CofG truck. itll go joe cocker on ya in a right hurry.
     
  15. Dec 6, 2010 at 12:39 PM
    #15
    xxaarraa

    xxaarraa [OP] Well-Known Member

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    If you autocross a Porsche, I cannot believe you don't feel the understeer in a Tacoma. Your Tacoma must have been special built from factory :) BTW, what Porsche? I'm thinking about a used 911 4s next summer.

    Without getting into too much debate on philosophy of understeer, just making a list of suggestions already thrown out to address my original question:

    Thicker sway bar - I get this one.
    Different alignment specs - anyone got any recommendations on front/back settings? How badly would this affect treadwear?
    Bigger diameter wheels - how would this help?
    Lower tire pressure - how would this help?
     
  16. Dec 6, 2010 at 12:54 PM
    #16
    cactuscorn

    cactuscorn Another FNG

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    remember, the rear engine porsche 911 had awesome frontal downforce and a bit too much weight in back to push much unless tryin to recover from a early apex with the throttle nailed to the floor. very tail happy much like a series 1 rx-7. they handled almost identically at times and again, i found them both a blast to drive quickly. of course shaved yokohamas, stiff suspension, big motors and a roll cage helped.
     
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