Quote:
Originally Posted by fe1rx
An interesting point that is not visually apparent because of the dust boot normally covering the top of the OE shock - the 135i rides on its rear bump stop at normal ride height. The bump stop is very soft and fairly linear in its initial stiffness, but it adds to the total spring rate at the rear and means that the rear has a progressive total rate, even with a linear spring.
|
I suspect this is the key to the ride improvement from the Dinan upper shock mounts--that the car no longer rides on the bump stops.
I just installed the Dinan mounts recently. That annoying E9x/E8x secondary oscillation after bumps is reduced--I suspect due to not bouncing off the bump stops all the time.
Very interesting topic, fe1rx.