geekfreek95
Quarry Creeper
I stripped my stock servo horn and need to know the best person or place to get one and what type clamping or just aluminn
x2, The longer one. I haven't been able to hurt a Racers Edge (7980 at 8.4V) but it's a little shorter than the long Robo arm.Robotronics...
Yes, a shorter horn will make more steering force, problem with the XR's steering geometery (at least with VP knuckles, never bolted the stock ones on) is a short horn won't allow full throw. The radio/servo still has travel, but the linkage can only swing left (looking from front, right turn) so far before the horn and linkage go straight with each other, opposite direction and the ball end hits the horn. I spent an hour getting everything just right for full throw in both directions.If your servo/radio allows for it, open up the EPA's and run a shorter horn. This provides the servo more mechanical leverage.
Short servo horn + long knuckle arm = most mechanical advantage for the servo.
But Robitronics double clamping HD horn is the best. Racer's Edge is good, but not a clamp style.
Yes, a shorter horn will make more steering force, problem with the XR's steering geometery (at least with VP knuckles, never bolted the stock ones on) is a short horn won't allow full throw. The radio/servo still has travel, but the linkage can only swing left (looking from front, right turn) so far before the horn and linkage go straight with each other, opposite direction and the ball end hits the horn. I spent an hour getting everything just right for full throw in both directions.
The Racers Edge is a double clamping style. Slightly less beefy than the Robo though. This is the first I've saw the Hanger 9, looks beefy also.
Short servo horn + long knuckle arm = most mechanical advantage for the servo.