Originally Posted by
Cannondale1974
Ok, I made a quick little video of my XXX-CR. (1/10th 2WD buggy) Front springs are red (2.5 rate), rear springs are white (1.8 rate) Best I can tell the back has a much lower frequency rate and must be brought up to match the front since I have the softest springs available in the front for this car. What do you think? How far "mismatched" does this appear to be in your opinion?
http://www.youtube.com/watch?v=f20gDe6BeNc
Also, most drops were made from about 2-3" as anything above that would bottom out the rear chassis.
Yes to get it more balanced you need to raise the rear spring rate.
One thing to keep in mind to make this test as accurate as possible is:
1. the suspension arm downtravel is close to equal front to back.
2. You do this test on the tires/foam you'll be running with. If you change to a totally different foam you may have to redo this test.
3. the chassis shouldn't bottom out and hit the table. If the chassis hits the table than the natural rate the spring will rebound changes. Select a drop height where the chassis doesn't bottom out.