accessing multiple inlets from js object

sorry if i missed somehting completely obvious but i need to assign each input on my js object to a different variable in the javascript file. so far any input i use changes on the "throttle" variable and the inlet() function gives an error that it does not exitist, any help would be incredibaly apreciated.

follows are the patcher and javascript

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var throttle = 0;
var cutoff = 6500;
var rpm = 1000;
var ratio = 3.45;
var fd = 3.94;
var load = 0;
var speed = 0;
var dragco = 0.31;
var drag = 0;
var tire_w = 195;
var tire_s = 45;
var rim = 15;
var pi = 3.14159;
var acc = 0;

function msg_int(throttle)
{
    speed_cal(tire_w,tire_s,rim,fd,ratio,rpm);
    drag_co(dragco);
    acceleration();
    outlet (0, throttle);
}

function speed_cal(tire_w,tire_s,rim,fd,ratio,rpm)
{
    speed=(tire_s*tire_w/100+rim*25.4/2)*2*pi*rpm*60/(fd*ratio*1000000);
    outlet (1, speed);
}

function drag_co(dragco)
{
    drag = speed * dragco;
//    outlet (0, drag);
}

function acceleration()
{
    acc = power() - drag;
//    outlet (0, acc);
}

function power()
{
    if(rpm < cutoff)
        load = Math.sqrt(rpm) * throttle;
    else
        load = Math.sqrt(rpm);
    outlet (2, load);
}