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#1
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Why flip rear pivot blocks on X-5?
Hi,
I've heard people mention this, and seen setups (e.g. Ellis Stafford), where the rear pivot blocks are flipped over, and out of necessity have been ground away to make room for the outdrives, as the natural left block goes on the right and vice versa. But I wonder what is the point in this? What does it achieve? I've had a think about it, and as far as I can tell it would raise the chassis in relation to the rear wishbone / suspension arm by about 3mm, or however tall those little lugs are on the pivot blocks are. But what I don't know is what effect this would have on the handling. Can anyone shed any light on this for me? I'm sure others are wondering the same thing too. Thanks in advance.
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X-5^2 :: CR2 :: XXX-T MF |
#2
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It raises the hingepins and allows the car to go though the bumps better.
A
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Ashley Williams I always thought by 2013 we would have flying cars, but we have got blankets with sleeves! |
#3
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and alters the rear anti squat,
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Mattys the driver,my names carl
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#4
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How does it alter the anti squat Carl? We talking more anti-squat, like more than 4 degrees or something?
I don't suppose you can have less than zero anti-squat...'cos this would be pro-squat. He he, anti anti-squat. Dunno, just rambling now.
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X-5^2 :: CR2 :: XXX-T MF |
#5
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I think Ellis or Elvo will be able to give you a technical answer to this but ill try to do my best.
What you are doing is lowering the wishbone pivot point in relation to the chassis. this means that you are raising the roll centre, the rear of the car will roll a bit more in the corner but it should be better over bumps and just feel that bit more planted. We used to play about with raising wishbones when i raced on road and moving them up by 0.5mm made a massive difference to the handling of the car. |
#6
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Surely arent you raising the wishbone pivot point compared to the chassis as you are raising the hinge pin?
A
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Ashley Williams I always thought by 2013 we would have flying cars, but we have got blankets with sleeves! |
#7
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Inner hinge pin goes UP in relation to the chassis - if everything else stays the same - roll centre goes UP, rear end rolls LESS.
But I think the plantedness comes from having the wishbone and camber link closer together. BTW, the little lugs should be filed/Dremeled off.
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#8
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Quote:
Cheers.
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X-5^2 :: CR2 :: XXX-T MF |
#9
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2° anti-squat block flipped = 2° pro-squat = not what you'd want. To be remedied with lots of spacers under the front 2 screws.
Using the 0° block is probably easier.
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