XRAY - Model racing cars

The downstop will limit the travel of the chassis upward. You can by increasing the downstop (limiting upward travel) reduce the amount of weight transferred away. The car will be more more stable with higher downstop levels all round but will not roll as much so is not good for pop dots or bumpy conditions.

The downstop scew is hit at point where the weight is being transferred away from that end. This means that there is more grip at that end of the car as the downstop is hit and the force required to lift the end is much greater than that produced.

So off power, more downstop at rear will stop weight being transferred away and more rear end grip will remain.

On-power with front downstop, as weight.is transferred away (acceleration/front lifts) when downstop is reached the transfer.is limited.

This is directly connected to droop. With the car ready to run place forefinger and thumb on the front wheels and pull the front shock tower upwards, this gives an indication of what change does what.

If you want an accurate reading try lifting the car at the rear/front center hole and measure how far you lift before wheels leave the ground. This should happen at the same time. If not check the downstops are equal and that suspension is not binding.

Tony from a physics point of view does the downstop screw once reached create a pivotpoint?