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Kurt Bilinski
08-30-2005, 08:14 PM
When I designed my Mini, I started with 6" shock travel. 1" is used up by the bump rubber, leaving 5" to be split between bump and droop. I chose 2" droop and 3" bump.

Later I was told I'd done it wrong, that it should have been the opposite, with more droop then bump to let the rear inside tire stay on the ground longer. (This is a street car) What's the consensis here on this?
Kurt Bilinski
08-30-2005, 08:14 PM
When I designed my Mini, I started with 6" shock travel. 1" is used up by the bump rubber, leaving 5" to be split between bump and droop. I chose 2" droop and 3" bump.

Later I was told I'd done it wrong, that it should have been the opposite, with more droop then bump to let the rear inside tire stay on the ground longer. (This is a street car) What's the consensis here on this?
Chris Clarke
08-30-2005, 08:41 PM
Kurt,

Let me be one of the first to say welcome to the forum. Your project is really inspiriational to a lot of us here. I have been following your progress daily on the Kimini for the past year or two now. I also would like to start something that is similar to what you talk about for your future project early next year.

I cant really help you with your question, there are a lot of other people on here who can though.

I can point you to this old thread which is really good, and talks about the effects of limiting your droop travel. This may be able to help you clarify some things.

Zero Droop Thread (http://fsae.com/eve/forums/a/tpc/f/125607348/m/18910968321/r/18910968321#18910968321)


Chris
Denny Trimble
08-30-2005, 10:17 PM
My approach is to work from a desired ride frequency (1.5 to 2 Hz for a street car? I'm in unfamiliar territory here http://fsae.com/groupee_common/emoticons/icon_smile.gif ), then pick a spring rate to get that frequency. Then, with the static weight on each corner, you can find out how far your spring will deflect (f=kx) if it has zero preload at full droop. And there you go.

It doesn't matter if you have 4" of droop, if your spring goes slack at 2" droop http://fsae.com/groupee_common/emoticons/icon_smile.gif