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Decreasing Turn Radius Thought Experiment

Discussion in '2nd Gen. Tacomas (2005-2015)' started by viperstd, Dec 9, 2010.

  1. Dec 9, 2010 at 6:38 AM
    #1
    viperstd

    viperstd [OP] Tacoma convert

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    Since my last thread started a bit of an expected shit storm... let's see if I can start another one.


    Right off the bat let me clarify: This is a mental exercise only! If your only comment is:
    • it can't be done
    • too expensive
    • buy a different truck
    • un-possible
    • x2
    • x1,000
    Please don't bother responding. This thread is a place for gear heads to discuss what it would take to accomplish the goal.

    The challenge: Modifications required to decrease the 22' (6.7 m) turn radius of the doublecab long bed, 2nd gen Tacoma.

    e.g.
    Piecut frame for wheel clearance.
    ok now I have frame clearance but not the rack travel to use it.

    Cut more teeth in the rack.
    ok.. what is going to drive the pinion to turn the rack?
    Longer travel hydraulic rack pump.

    Remove/relocate steering stops

    etc.


    Cheers 2nd-gen gear heads!
    :cheers:
     
  2. Dec 9, 2010 at 6:44 AM
    #2
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    I think the most logical thing to do would be not touch the front end at all. If I had more money than brains, I would do a rear steer set-up.......................or buy another truck
     
  3. Dec 9, 2010 at 6:46 AM
    #3
    senna

    senna Well-Known Member

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    Rear steering :confused:.
     
  4. Dec 9, 2010 at 6:46 AM
    #4
    xJuice

    xJuice My spoon is too Big!

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    didn't you just answer your own question?
     
  5. Dec 9, 2010 at 6:47 AM
    #5
    28ØØ3

    28ØØ3 Well-Known Member

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    x2
     
  6. Dec 9, 2010 at 6:51 AM
    #6
    BlueT

    BlueT Well-Known Member

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    I moded 1999 Taco so much it had turned to Land Cruiser
    Ha ha good one...
    I think wheel spacers plus shave off the stops would give you slightly smaller radius but buying new truck will accomplish even more :D

    Now if you had only A-trac you probably could have turned in a spot just by pressing magical button;).
     
  7. Dec 9, 2010 at 6:52 AM
    #7
    Pugga

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

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    Something like the Denali. Makes for a broken rear axle so all those bearings and joints you have in your front end, you now have in the back as well. Double the maintenance, expensive as hell I'm sure, but probably the most effective way to do this. Denali's only have the rear steer when you're under a certain speed. There was an old Accord model that had this also.

    Minor improvements can be had by changing your alignment. I'm thinking something more similar to a flat track car but that wouldn't be good for normal driving.

    Easiest way, turn the wheel and stomp the skinny pedel and wait for the back end to come around.
     
  8. Dec 9, 2010 at 6:53 AM
    #8
    wiscdave

    wiscdave Lets Do It!

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    WOW, heck of an idea..but not going to happen on a 4*4 IMHO.
     
  9. Dec 9, 2010 at 6:54 AM
    #9
    viperstd

    viperstd [OP] Tacoma convert

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    I VERY SPECIFICALLY asked people to not chime in with
    "x2"
    "buy another truck"
    type feedback... :deadhorse:

    Rear-steer, while a sound suggestion, is not in the spirit of the original question.

    I didn't answer my own question, I was merely attempting to get everyone's creative juices flowing.

    :boink:
     
  10. Dec 9, 2010 at 6:56 AM
    #10
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    How does rear steer not fit "in the spirit of the original question"?
     
  11. Dec 9, 2010 at 6:58 AM
    #11
    viperstd

    viperstd [OP] Tacoma convert

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    Does this truck have mechanical steering stops, or are they internal to the pump? When I turn the wheel it feels like I am hitting a mechanical (tab-type) stop. Would relocating this free up a few degrees of wheel toe?
     
  12. Dec 9, 2010 at 6:59 AM
    #12
    viperstd

    viperstd [OP] Tacoma convert

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    Because I wasn't thinking along those lines when I wrote the question :D!
     
  13. Dec 9, 2010 at 7:04 AM
    #13
    05Moose

    05Moose Middle-Aged Member

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    Just look under the front of the truck at the wheel. You'll see the flat metal stop.
     
  14. Dec 9, 2010 at 7:05 AM
    #14
    Lurkin

    Lurkin Well-Known Member

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    Add a rear diff disconnect so you can do front digs.

    I know, I know, "not in the spirit...."
     
  15. Dec 9, 2010 at 7:06 AM
    #15
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    Ah, change the rules as we go I see. Will we be making a wheel rounder next?
     
  16. Dec 9, 2010 at 7:08 AM
    #16
    05RedTaco

    05RedTaco Nom Nom Nom

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    Any modification, you do in order to accomplish your goal will cost a lot of money.

    You have to ask yourself is this really worth it?
     
  17. Dec 9, 2010 at 7:12 AM
    #17
    viperstd

    viperstd [OP] Tacoma convert

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    is a "wheel rounder" like a "finger-longer"?
     
  18. Dec 9, 2010 at 7:13 AM
    #18
    Pugga

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

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    I'm gathering the OP has no intention of actually doing this. This is just a 'what if'.

    If your front wheels turn over too far you'll just plow with the front tires with a rear wheel drive truck which is why rear steer is an effective solution. It reduces turning radius while not overextending the angles on your front end.
     
  19. Dec 9, 2010 at 7:14 AM
    #19
    viperstd

    viperstd [OP] Tacoma convert

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    Is it worth it? No... Is it a fun mental-exercise? For me, yes it is.
     
  20. Dec 9, 2010 at 7:15 AM
    #20
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Cut the rear suspension, and re mount it forward about 20".
     
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