yes im bored, but no really been spoiled by cars like the GT3 RS which have no body roll at all even with much softer springs vs the ACR.

Viper specs sheet.jpg

Based on the image above, you can find out that all models have spring rates that are exactly 2.5 times stiffer in the rear, except for the ACR.

so:

- SRT Viper: 500/200 = 2.5

- GT/GTS: 550/220 = 2.5

- TA: 600/240 = 2.5

- ACR: 1300/600 = 2.16

Perhaps there is something magical about this ratio of front to rear spring rate split on this platform especially if one were to calculate the spring's natural oscillation frequency and how that effects the drivability and handling on track.

My question is if the ACR spring rates were exactly where they have to be or if this is the best compromise they managed to come up with due to the effects of front vs rear downforce. To get the same ratio the ACR would require 1500lbs springs in the rear or 520lbs springs in front.

Also if we were to compare the sway bar stiffness settings between the SRT/GT/GTS vs the TA we would come up with the following:

- SRT/GT/GTS: Front bar is %43 stiffer than rear.

- TA/ ACR: Front bar is %48 stiffer than rear.

This difference might be simply due to how sway bars are made in that sizes go up a minimum of one millimeter. Reducing the percentage above will have the benefit of increasing load transfer on the rear axle, which should help with some of the inherent weakness of the front end.

My solution for this is to buy a set of stock ACR/TA sway bars and send them over to a swaybar manufacturer (which im already working on). Measure both bars and duplicate them while increasing the front bar 1mm and the rear bar by 2mm. This would help neutralize the car's handling much more in addition to the added benefit of reducing body roll.

I did some preliminary number crunching and came back with good results. I just want to confirm the stock bar diameters before I post anything however. I am making those for myself but I spoke to the swaybar manufacturer and anyone who wants those will be able to order them directly. Will need a few weeks though.

What do you guys think?