I see that the progress rear sway bar does not mount to the chassis with bushings. In the past when i have seen roll bars, they were.

does progresses rear sway bar work well with out mounting to the chassis?

 

I would say yes. I have not installed mine yet (waiting on coilovers to arrive), but based on the reviews in this thread it seems like everyone is more than pleased with how well it works... pretty much from post #91 on, LOL!

 

Here you go:https://www.fitfreak.net/forums/fit-...-page-5-a.html

 

the reason it doesn't mount to the chassis with bushings is because the fit has a torsion beam rear suspension, which is most likely different from the suspension of cars you've seen equipped with rear sway bars. there is no need for the rear sway bar to mount to the chassis in cars with this type of suspension. however, it works based on the same principle, linking up the rear wheels to limit their independent suspension travel (thus reducing roll).

haha, to answer your question: yes it works well.

 

It doesn't have to mount to the chassis but it would be better if it did. When one wheel moves up and down compared to the opposite wheel the shape of the unmounted chassis bar distorts considerably compared to the controlled chassis mounted bars. Never tried on without chassis mounting and don't think we would.. That distotion just looks too uncertain to trust on track.
And yes with the Fit's tosion beam axle don't see as much effect from rear bars as changes to the front bar, such as complete removal.

 

i dont think it would work better if it were mounted to the chassis.

the way our suspension in the rear works, it is basically just a swaybar. what the progress bar does is adds to what the stock suspension is doing.

and hell yes it does work

 

My concern is repeatability. A distortion rarely has repeatability and if you can't count on the suspension doing the same thing under the same circumstances there is a problem the driver has to sort out. Much like 'flexible flyer' chassis.

Then, of course, not having tried one, we don't know about the Progress bar. Its just a concern that can only be settled by laps around the race course. Laps repeatable? Lap time spread? etc.

 

ok this answered my question. thanks

 

there is a guy on youtube who tracks his insight. his only mods (iirc) are stickier tires and he replaced his rear torsion suspension with one from a jetta (heavier car = stiffer rear torsion beam). essentially, we could do the same, with the same results. what the progress bar does is stiffens up the rear torsion beam.