C4 rear suspension geometry, camber rods.
11-13-2008, 02:45 AM
#1
Le Mans Master
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St. Jude Donor '03 & '05
C4 rear suspension geometry, camber rods.
I noticed a few pictures on this forum of the camber rods. Some of the camber rods went from the Diff carrier bracket down, 5- 10 degrees angle to the mounting point on the spindle. Some were almost level, like the C5's. Is there a difference in performance or years to cause this? Mine is level to the ground, with DRM brackets. I see that C5's are level too.
11-13-2008, 01:04 PM
#2
Burning Brakes
could it be something visual: like the car being up in the air and off the suspension when the pic is taken? I thought most were designed to be approximately level when the weight is on the suspension.
11-13-2008, 10:49 PM
#3
Le Mans Master
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St. Jude Donor '03 & '05
If you look at the camber brackets that attach to the diff, you will notice hat I am talkinig about.
This bracket puts the camber rods further to the ground, and the eccentric bolt is below the carrier
This one the bracket and bolt are flush with the carrier.
This bracket puts the camber rods further to the ground, and the eccentric bolt is below the carrier
This one the bracket and bolt are flush with the carrier.
11-13-2008, 11:05 PM
#4
Former Vendor
The diff in the first picture isn't installed giving it a much different look.
When changing the camber rod locations, you can adjust the amount of camber change during suspension travel.
The installed picture is a early car and the other one is a late car.
Randy
When changing the camber rod locations, you can adjust the amount of camber change during suspension travel.
The installed picture is a early car and the other one is a late car.
Randy
11-14-2008, 09:21 AM
#5
Along with what Randy said about the camber curve, the brackets were made to reduce bump steer.
Having the rods level is probably where you want them but, that's not why the brackets were designed.
Having the rods level is probably where you want them but, that's not why the brackets were designed.
11-14-2008, 10:04 AM
#6
Burning Brakes
Why it is has been mentioned above. It's funny you used the installed pic you did since that camber rod kit is the one I make and sell here. That's one of my customer's cars.
11-14-2008, 10:56 AM
#7
Le Mans Master
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St. Jude Donor '03 & '05
I wasnt thinking the brackets were made to keep the rods level, I was just mentioning it. I had noticed this before, but didnt put 2n2 together.
11-14-2008, 01:46 PM
#8
Instructor
Help the lysdexic...
How would the camber rods affect bump steer? Isn't bump steer a change in toe as the wheel rises and falls?
I'd think changing the bracket location for the camber rods would change the camber curve but not the amount of camber.
If the top pic were at the same "ride height" as the bottom pic, I'd expect the top pic to lose neg camber in upward wheel movement, the bottom pic to gain.
One of these days I'll figure it all out....
How would the camber rods affect bump steer? Isn't bump steer a change in toe as the wheel rises and falls?
I'd think changing the bracket location for the camber rods would change the camber curve but not the amount of camber.
If the top pic were at the same "ride height" as the bottom pic, I'd expect the top pic to lose neg camber in upward wheel movement, the bottom pic to gain.
One of these days I'll figure it all out....
11-15-2008, 02:29 PM
#9
Team Owner
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They work together, the toe rod was setup for a given geometry, if that's changed it will have an effect.
Change the length of any side of a square, it's no longer a square.
Change the length of any side of a square, it's no longer a square.
