What are the differences in running a 13 5/8" Jacobs ladder compared to a 14"?

one is shorter than the other

You got to love a GENIUS

A 13 5/8 will react faster, a 14 will take more to get similar movement but in my opinion possibly generate more leverage

Thanks, does one free up the chassis more?

I have been researching this same question. In my opinion, the longer arc should hold the car up longer, to free the car up entering the corner, the shorter arc should load the RR quicker.I think!but I am no genius. So if somebody could explain, in idiots terms, that would be real nice.

In my past experience, a shorter ladder hooks up harder than a long ladder.

I have heard about guys running different length arms to change the reaction. Like longer on top or bottom. Anybody want to help me on this? Thanks

A 14" ladder is definetely going to free the car up on entry as well as all the way thru the corner,out here on the west coast I've run both a 13 5/8 and a 14" ladder,the 13 5/8 is what i normally run but if the the track is very tacky with a big cushion and I'm having a tough time getting the car to rotate thru the corner thats when I would run the 14" ladder.

Like what some guys mentioned earlier,the shorter ladder reacts a little quicker in getting RR bite into the car,the longer ladder delays the reaction time.

i am uncertain of what you mean by, a shorter ladder hooks up harder than a long ladder. Do you mean it is harder to get the car to hook up, or the car hooks up better?
Sorry if I am a little ignorant, but terminology is different in some regions than others.
I just want to be clear, on my interpretation, because LEADERS EDGE seems to be the Guru. So whatever he says, goes!:thumb