[NickE]

The code i put above would scale the input to the output. To limit it without scaling, do something like this:

if(vexRT[Ch1]>80){
   motor[port1] = 80;
}else if(vexRT[Ch1]<-80){
   motor[port1] = -80;
}else{
   motor[port1] = vexRT[Ch1];
}