dOWNSTOPS - THEORY
Downstops limit how far the suspension arms travel downward, which determines how far upward the chassis rises. This affects the car’s handling
(due to effects on camber and roll-center) and the ability of the tires to “follow” the track. The effects may change with the type of track and/or
amount of grip available.
More suspension travel (lower downstop value) makes the car more responsive but less stable; it is also typically better on a bumpy tracks or tracks
with slow corners. Less suspension travel (higher downstop value) makes the car more stable and is typically better on smoother tracks.
It is very important to have the same downstop settings on the left and right sides of the car.
Front Downstops
Higher front
downstop value
·
Decreases front chassis upward travel on-throttle.
·
Increases high-speed steering.
·
Increases “initial” on-throttle understeer.
·
Better on smooth tracks.
Lower front
downstop value
·
Increases upward chassis travel on-throttle.
·
Decreases high-speed steering.
·
Decreases “initial” on-throttle understeer.
·
Better on bumpy tracks.
Rear Downstops
Higher rear
downstop value
·
Decreases rear chassis upward travel off-throttle or under braking.
·
Increases stability under braking.
·
Better on smooth tracks.
Lower rear
downstop value
·
Increases rear chassis upward travel off-throttle or under braking.
·
Increases steering in slow corners.
·
Better on bumpy tracks.
1. Place the droop gauge support blocks on the set-up board, and then place the chassis on
the support blocks.
Make sure the chassis is solidly mounted on the support blocks so it does not move.
DOWNSTOPS
InItIal steps
set-up components:
prepare the car as follows:
use the following set-up components:
·
Shocks: Detach the shocks.
·
Anti-roll bars: Detach the anti-roll bars.
·
Wheels: Remove the wheels.
·
Droop Gauge Support Blocks
·
Droop Gauge
dOWNSTOPS - EFFEcTS OF adJUSTMENT
dOWNSTOPS - MEaSURING
FRONT RIdE HEIGHT
REaR RIdE HEIGHT
