Swifties...how accurate is your Qualcomm at recording over speeds or critical events?

It was the worst kept secret at the Go Kart track....

 

Nope, its the tires. When you have new rubber there is more tire to turn at the same RPM, thus you will go faster. As your tread wears out you will slow down. I have seen it several time in various trucks.

 

That's it.

I'm demanding a new set of tires at our B service this week.

 

It doesn't take much thought at all.
If your tires have a larger circumference (which happens with 1 inch of new tread) you will travel farther with each revolution of that tire.

 

I'm not sure how the governor determines truck speed.
If it is the gearing then it would probably be engine RPM or something. If so, new tires would have a speed advantage over worn tires.

 

It goes off of a sensor on your output shaft.
one of my owners had a bad one and it gave her a bunch of exsessive over speeds.
she got the part fixed and no more over speeds.
the govener goes off of rpm. The shop can program in different tire sizes(tall rubber)

 

No...they don't reprogram them when you get new rubber. If they did you would be in once a month as your tire wore down. They program in an average amount. You go quicker when they are new, closer to 62 during most of the life of the tire, but when tread wears down to minimun you may barely be going 60.