Dale
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| posted on 24/8/05 at 07:10 PM |
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wishbone pickups and chassis inclination
Since I am redoing my wishbones and mounting points I though I would check out weather or not any chassis height difference 5 or 5.5 inches front 6-
6.5 inches rear makes a differnece. I have never seen mention of it but I guess the pickup refernece points are measured from the bottom of the
chassis rails and not parallel to the ground.
Dale
Thanks
Dale
my 14 and11 year old boys 22
and 19 now want to drive but have to be 25 before insurance will allow. Finally on the road
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Volvorsport
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| posted on 25/8/05 at 10:22 AM |
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my wishbone pick up points are different , they stick the wheel out further and also have better geometry for bigger wheels , and i have based that
round 5 inch ride height
www.dbsmotorsport.co.uk
getting dirty under a bus
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kb58
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| posted on 25/8/05 at 01:45 PM |
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Will it make a difference? Yes. Will you like it? No one can answer that except you.
There's another aspect of it though. It's not a problem, *IF* you have determined that by moving them you haven't messed up the
suspension geometry. For example, will bumpsteer be different? And where is the roll center now versus before.
Will it make the car undrivable? No, but you're messing with the very essence of what gives a car its "feel" and if you just move
things, it's likely to be much different, in a bad way.
Or perhaps I don't understand your question. If you are asking can you move the pickups, and will it matter, it all depends if you are moving
the points differently relative to each other. OTOH if you're asking, can you shift all of them by the same amount, then yes, it'll be
fine.
quote:
Originally posted by Dale
Since I am redoing my wishbones and mounting points I though I would check out weather or not any chassis height difference 5 or 5.5 inches front 6-
6.5 inches rear makes a differnece. I have never seen mention of it but I guess the pickup refernece points are measured from the bottom of the
chassis rails and not parallel to the ground.
Dale
[Edited on 8/25/05 by kb58]
Mid-engine Locost - http://www.midlana.com
And the book - http://www.lulu.com/shop/kurt-bilinski/midlana/paperback/product-21330662.html
Kimini - a tube-frame, carbon shell, Honda Prelude VTEC mid-engine Mini: http://www.kimini.com
And its book -
http://www.lulu.com/shop/kurt-bilinski/kimini-how-to-design-and-build-a-mid-engine-sports-car-from-scratch/paperback/product-4858803.html
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Dale
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| posted on 25/8/05 at 04:49 PM |
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I have recalcuated the locations and am happy with what is suposed to happen, camber adustment roll height ect. Bump steer will be minimal with the
rack in the correct spot.
The real question is my calculations are based on the car siting level, but I want the car to sit about an inch or so lower at the front than the
back so the chassis is going to be at a very small angle to the ground.
My lower wishbone will be bracketed ontop of the lower chassis rail , parallel to it. In doing this with the lower chassis rail actually sloping up
towards the rear of the car so the wishbone will be actually slightly higher at the back than the front- this will give a bit of anit dive-I would
guess less than one degree.
I am wonderng if I should lower the back of the upper wishbone pickup the same amount as the chassis inclination or another degree or so that it
does not produce dive.
I want to run fairly soft springs with a swaybar so a couple of degrees of antidive may be a good thing- but I dont want have it binding up-
espeacially since I am using bronze bushings.
Dale
Thanks
Dale
my 14 and11 year old boys 22
and 19 now want to drive but have to be 25 before insurance will allow. Finally on the road
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