"inhouse" means "using block of wood + BFH"
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| Driving Style - Trying to understand https://www.ausmini.com/forums/viewtopic.php?f=2&t=32400 |
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| Author: | Blokeinamoke [ Sat Jun 02, 2007 2:43 pm ] |
| Post subject: | Driving Style - Trying to understand |
In preperation for the Moke becoming legal I have adjusting my driving style. I am having a few issues undertsanding the dynamics of this thing. 1. Wagging tail - the tail hangs out all over the place. Strange it cant be power on oversteer - obviously. Sideways through roundabouts is possible without really trying. Any reason 2. bump steer - the suspension bsuhes, shocks and cones are all new or newish - cant see why this happening 3, Tramlining - Its not overtyred so again that has me guessing I didnt have the same in Bens Moke - it behaved as expected.Mine handles very differently. |
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| Author: | sports850 [ Sat Jun 02, 2007 2:49 pm ] |
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Have you had an alignment done by somewhere that knows mini's yet or is it "about" right till you get it rego'd ? |
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| Author: | Blokeinamoke [ Sat Jun 02, 2007 2:51 pm ] |
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sports850 wrote: Have you had an alignment done by somewhere that knows mini's yet or is it "about" right till you get it rego'd ?
It has been aligned inhouse and tied down etc as per the book. Should be about right but that would explain some of it. |
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| Author: | speedy [ Sat Jun 02, 2007 2:52 pm ] |
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"inhouse" means "using block of wood + BFH"
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| Author: | Blokeinamoke [ Sat Jun 02, 2007 2:53 pm ] |
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speedy wrote: "inhouse" means "using block of wood + BFH"
and a large metal pipe
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| Author: | VicMini13 [ Sat Jun 02, 2007 3:50 pm ] |
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If you're pretty confident with the alignment, try playing with the tyre pressures. Do you have hi-lo's? Maybe they are set a little low, or the corner weights are out (not all set to the same height placing more weight on some wheels) |
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| Author: | Blokeinamoke [ Sat Jun 02, 2007 4:24 pm ] |
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VicMini13 wrote: If you're pretty confident with the alignment, try playing with the tyre pressures.
Do you have hi-lo's? Maybe they are set a little low, or the corner weights are out (not all set to the same height placing more weight on some wheels) no hi-los. Corner weights? |
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| Author: | 1310/71 [ Sat Jun 02, 2007 5:49 pm ] |
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How old are the tyres? - they're probably rock hard and starting to perish. Just 'cause they've still got tread doesn't make them ace. KB |
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| Author: | Mike_Byron [ Sat Jun 02, 2007 5:59 pm ] |
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Now that you have driven it - I would put it up on jack stands and check all the subframe bolts and then check all the suspension components for looseness. Your right it should not be happening. Lets get some technical terms clarified first. Bump steer is where a car comes down on the suspension and in doing so changes the toe in and toe out by lengthening the steering arms. Makes the car walk badly under heavy braking. Minis and mokes just dont have that much suspension movement under normal conditions. Corner weights - again a racing thing which is commonly called weight jacking. This is where you can compensate and balance the weight of each corner of the car by place washers etc under suspension mounts to place more weight on the opposite corner. Driver training schools use an extreme example of this with hydraulic rams to change the weight balance and make a car slide widely but predicabley. Again not something a moke should be doing. For what your describing to be happening something is fundementally wrong under the car. |
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| Author: | VicMini13 [ Sat Jun 02, 2007 6:03 pm ] |
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Blokeinamoke wrote: VicMini13 wrote: If you're pretty confident with the alignment, try playing with the tyre pressures. Do you have hi-lo's? Maybe they are set a little low, or the corner weights are out (not all set to the same height placing more weight on some wheels) no hi-los. Corner weights? This is the amount of weight that sits on each wheel. One of the traps of hi-los when they are set at different heights, but can also be caused by twisted body, subframe(s) or a subframe put in on an angle. As an example, if the front right is lower than the others, the frront right and rear left will carry mote weight than the front left and rear right. More serious is the car can "rock" on the two diagonal wheels like a table with one leg longer. |
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| Author: | DOZ [ Sat Jun 02, 2007 6:12 pm ] |
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Mine oversteers badly. Shocks at the rear are stuffed whereas fronts are good. Tramlining can be caused by incorrect offset wheels like you see on the super minis. Daniel |
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| Author: | Blokeinamoke [ Sat Jun 02, 2007 6:12 pm ] |
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1310/71 wrote: How old are the tyres? - they're probably rock hard and starting to perish. Just 'cause they've still got tread doesn't make them ace.
KB new quality goodride tyres - 170/75/r13. the chassis is straight (I made sure of that) - I have no hi-los and the suspension dimensions are square. bump steer is what I am experienced - car feels fidgety under heavy brakes and at the bottom of the suspension travel - Just spannered the car - all over retightened every nut and bot to spec so a loose anything is unlikely maybe I should drive Bens again to do another comparison
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| Author: | sports850 [ Sat Jun 02, 2007 6:17 pm ] |
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It should be good and stable , jack up each corner and try and wobble each wheel/suspension etc ? |
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| Author: | cush [ Sat Jun 02, 2007 6:24 pm ] |
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is the handbrake off? 
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| Author: | Blokeinamoke [ Sat Jun 02, 2007 6:25 pm ] |
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cush wrote: is the handbrake off?
damn - that would be it that and the 150kg person sitting on the rear right corner of the car 
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