mikep
Vintage Ride
- Joined
- May 24, 2003
- Location
- 38? 27' N 75? 29' W
I agree. IF the spring is at the halfway point between bushing and ball joint (and a 144 is close, haven't measured an 1800), it has a motion ratio of 0.5, so the pressure at the wheel is half that of the spring, and the distance the ball joint moves is twice that of the spring. 500lb/2 inch, which gives a wheel rate of 250 lb/inch.
For non-easy numbers, we square the motion ratio. (0.5 x 0.5 = 0.25 mr^2)
For non-easy numbers, we square the motion ratio. (0.5 x 0.5 = 0.25 mr^2)