violentblue
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| posted on 11/3/07 at 08:16 PM |
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a Little Help with my IRS design
I'm trying to set up my IRS on a +4 build
using Ford Thunderbird components.
I've found that taking measurements from the factory setup them modeling it in cad, the camber change seems a little counter intuitive. I looked
at the rorty plans and my components are just too different to adapt well to his plans.
can anyone reccomend some good resources online, how to set up an irs suspension?
assuming a 5" ride heigth to bottom of chassis, 22" wheels (15" rims plus rubber)
how much camber should the rear have, and how much gain at full bump (2"?)
how do i determine my roll center and adjust suspension to suit?
Thanks
a few pics of my other projects
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Chippy
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| posted on 11/3/07 at 11:06 PM |
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Not asking much are you, would take ten pages to get that lot sorted. If you can source the book, "Designing and Building Special Cars" by
Andre Jute, it will answer all those questions, well worth finding a copy. My copy is dated 1986, so you may have to try your local library, see if
they can get it for you. HTH Ray
To make a car go faster, just add lightness. Colin Chapman - OR - fit a bigger engine. Chippy
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violentblue
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| posted on 12/3/07 at 02:54 AM |
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i figured i was asking a bit much, but any help is more than i have
a few pics of my other projects
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violentblue
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| posted on 13/3/07 at 02:35 PM |
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I ordered a copy of stanforth's book.
I also found this page explaining how to find roll center (here)
using this information I worked backwards from my predetermined roll center, I managed to come up with a design that performs O.K. in bump and roll
I get about 1.5 degree camber gain in a 2" bump, the roll center drops a little less than 2"
in a 3degree roll, I get about 1 1/4" movement horizontaly
I'm sure it could be a little more ideal, but it is far superior to the stock layout.
a few pics of my other projects
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