Poly/Roto LCA's From UMI?
11-08-2010, 06:44 AM
#1
Poly/Roto LCA's From UMI? I have a 2002 Trans am WS6 with full exhaust and a 4000 stall that NEED'S suspension. Well one thing I'm confused with is that I would get the Poly/Poly $99 LCA's from UMI but the thing is people say Poly/Poly set-up's have a harsher ride quality. Well, I see the Poly/Roto-Joint LCA's that are $179 which isn't bad but I know nothing about them and I see no review on them unless I'm over looking. So who has them and how do you like them as far as ride quality? Performance?
Thanks!
Thanks!
11-08-2010, 07:26 AM
#2
A poly/rotojoint setup isn't going to give you a smoother ride than poly/poly...in contrast to rubber bushings, poly is harsher, but any spherical rod end-style is a direct mechanical connection without any buffering softer material, and as such will transmit more NVH.
I went from poly/rod LCAs to rod/rod LCAs and don't have any complaints. Rotojoints are supposed to be quieter than rod ends (meh), but there are instances of them loosening up over a short amount of time and requiring attention to keep tight.
I went from poly/rod LCAs to rod/rod LCAs and don't have any complaints. Rotojoints are supposed to be quieter than rod ends (meh), but there are instances of them loosening up over a short amount of time and requiring attention to keep tight.
11-08-2010, 08:42 AM
#3
Like Element mentioned the poly/poly is going to give you best ride quality out of all the control arms, but not as well as the factory rubber. The downfall to poly bushings is they can bind the suspension not allowing it to articulate correctly. However this should only be a concern if the vehicle is exposed to high handling, autocross or similar. For a street car with hard driving or daily driven the poly/poly set up is a good set up, inexpensive and low maintenance.
The Roto-Joint is a spherical bearing set up, the allows free movement in the suspension and helps to prevent bind. The Roto-Joint is very streetable, it is not noisy back can firm up the suspension since there is no give.
If I can help anymore please ask. Thanks for considering UMI!
Ryan
The Roto-Joint is a spherical bearing set up, the allows free movement in the suspension and helps to prevent bind. The Roto-Joint is very streetable, it is not noisy back can firm up the suspension since there is no give.
If I can help anymore please ask. Thanks for considering UMI!
Ryan
11-08-2010, 10:18 AM
#4
Like Element mentioned the poly/poly is going to give you best ride quality out of all the control arms, but not as well as the factory rubber. The downfall to poly bushings is they can bind the suspension not allowing it to articulate correctly. However this should only be a concern if the vehicle is exposed to high handling, autocross or similar. For a street car with hard driving or daily driven the poly/poly set up is a good set up, inexpensive and low maintenance.
The Roto-Joint is a spherical bearing set up, the allows free movement in the suspension and helps to prevent bind. The Roto-Joint is very streetable, it is not noisy back can firm up the suspension since there is no give.
If I can help anymore please ask. Thanks for considering UMI!
Ryan
The Roto-Joint is a spherical bearing set up, the allows free movement in the suspension and helps to prevent bind. The Roto-Joint is very streetable, it is not noisy back can firm up the suspension since there is no give.
If I can help anymore please ask. Thanks for considering UMI!
Ryan
So there is no change in Straightline drag racing performance from Poly/Poly to Poly/Roto?
