Aftermarket Sway Bar Selection
- Thread starter ElkySS89
- Start date
I have a Hollow 36mm bar on the front and a 1'' control arm mounted UMI rear bar. I feel the car still has a decent amount of body roll. I think I need to look towards a stiffer rear spring rate at this point.
there's a book called how to make your car handle by Mark Savitske,it's light theory that goes into all this stuff.he was a sh*t box of a sales guy but the amount that the book goes into covering these parallel 4 link suspension cars/sway bar theory/geometry/etc makes for a good read.it's since been revised aswell.
i liked it too.there's 4-5 pages on sway bar and sway bar related. One thing that he does point out is that "many people fall into the bigger as better trap and shop only for the largest bar they can find. Sometimes this works but many times their compromise in the vehicles performance. If other mods have been made say in an increased Spring rate lowered roll center,things like that the best way bar may be a smaller swaybar. The vehicle is really a combination of its parts and it doesn't care how massive the sway bar may look it only cares how the sway bar interacts with a rest of its components. And that makes perfect sense because if your vehicle is mostly stock and all the suspension opponents are totally clapped out you put a huge sway underneath it you're only masking existing problem.
Not meaning to be a d*ckhead here but g-bodys are not parallel 4-link suspension. G-bodys are C4L (converging 4 link) set-ups. Big difference between the two.
Mark was a great source for suspension info @ one time.
my mistake 👍 i meant to say triangulated four link. thank you for the correction,it was necessary.
I've been reading a bunch of his old posts. It's a shame he had to completely disappear
A better simple theory is to use thick bars with softer springs or thinner bars with stiffer springs. For example, the police package Crown Vics use stiffer springs but thinner bars than regular Crown Vics, this is mainly for them to help haul heavy loads.
Keep in mind with G bodies that stiffer suspensions causes the frame and body to flex more. This is why stiffening the chassis and body is important for these cars. Full set of good body mount bushings, F41 braces, GP brace, Jeff brace, rear seat brace, rear shock brace, etc.
Keep in mind with G bodies that stiffer suspensions causes the frame and body to flex more. This is why stiffening the chassis and body is important for these cars. Full set of good body mount bushings, F41 braces, GP brace, Jeff brace, rear seat brace, rear shock brace, etc.
Last edited:
I never thought of it that way but that's a good point. That said, I'm already running UMI braces on the front and rear and fresh poly body bushings. Working on finding some under hood braces.
Similar threads
