Spring Strength & Damping

[Rob H]

Some help needed from the more knowlegable.

1. I have some sets of springs from Tamiya, they all seem to be made from the same guage wire. Which ones would be the softest, the ones with less or more turns / coils.
2. Also, last week, I ran the car Tamiya DF-03 with the current damper set up which worked well on bumpy ground. This week ran with a different chassis and battery configuration which made the car much lighter (about 150 - 175 rams) but the front was bouncing at high speed.

Can you tell me what I need to look at, front damper oil or springs to hard?, which to change first to try to prevent the bouncing?

regs
rob