t.j.
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| posted on 4/5/07 at 05:26 PM |
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Q: 205 or 220
Now we all come to rest look please in to this question from me.
http://locostbuilders.co.uk/viewthread.php?tid=65090
It is quit strange that there is so much difference in the locost principal vs the tiger avon set-up.
Someone got a clue?
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Peteff
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| posted on 4/5/07 at 07:33 PM |
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Tiger seem to favour parallel wishbones, that's all so you won't get any camber compensation in cornering like the Locost system.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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gazza285
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| posted on 4/5/07 at 09:03 PM |
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Yes you will because the wishbones are still unequal length, as long as the wishbones are at least horizontal to begin with.
DO NOT PUT ON KNOB OR BOLLOCKS!
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Peteff
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| posted on 4/5/07 at 11:10 PM |
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Sorry,
I thought Tiger used the same length, now I've looked at the picture. Is it F27 that uses equal length wishbones?
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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flak monkey
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| posted on 9/5/07 at 05:26 PM |
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An unequal length set up will give you camber compensation in cornering/bump.
Non parallel wishbones allow you to alter the roll centre height. I would suggest that having non-parallel is better, than parallel on a seven type
car.
Heres how to find the roll centre:
First you need to find the instant centre, which is where two lines drawn along the wishbones (viewed from the front) cross over. The from this point
back you need to draw a line back to the centre of the contact patch of the wheel. Do this for both sides, and the point where the lines cross is the
roll centre.
You ideally want a roll centre above the ground, as this gives you better handling (more turn in responsiveness) and also reduces the amount of
roll.
The roll centre height changes under dynamic conditions, what you dont want to happen is for the roll centre to move below the ground at any point.
Usually the front roll centre is set lower than the rear.
Theoretically the lower you can get the roll center, the less body roll you will have in cornering due to the differing weight transfer. If you have a
high roll centre most of the weight transfer energy goes into body roll rathr than through the springs of the suspension. But like I said you need to
keep it above the ground, so that it never goes below it at any point.
I would suggest that buying a book such as Carrol Smiths Tune to Win would be a wise investment, as there is shed loads of info available. Some of it
is beyond what I have come across, so I can only give you a rough idea of what to aim for.
David
[Edited on 9/5/07 by flak monkey]
Sera
http://www.motosera.com
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