Hi. I have DA6 XSi on D2 Coilover and use Skunk2 camber kit for front and rear.
I make car lower like this:
With the back I don`t have any problems but fron is lowering nearly on maximum and front of the car jumping on every Hole on the street and i hear after mount camber kit the short sound “bum”. If somebody have car with cambers and realy lowering pleasy give show how low i can drive savety and if you have any issue with that. thanks a lot.
what size rims an tires are you running on there
Here is what I would recommend:
Measure the distance from the center of your axle to the top of the arch of your fender - write it down for all 4 corners.
Raise the car on jackstands, remove all 4 wheels, remove your coilovers, remove the springs from the coilovers, re-install the shocks by themselves.
Use a jack underneath your suspension. Raise the suspension up until you’ve reached your static ride height (when the distance between the center of your axle and the top of the fender arch is the same as the measurement you recorded in step 1).
Now you can look at your suspension as it sits when the car is on the ground. Look at all your suspension components. How much compression of the shock do you have until you hit the bump stop? How much compression do you have until the shock fully bottoms out? How much compression do you have until the upper control arm hits the inside of the strut tower…etc.
Keep in mind that the distance in compression travel at the shock will be less than the actual wheel travel. For example, the shock may compression 1" but the wheel may move upwards 1.5".
By looking at the suspension in this fashion you can see how much wheel travel you have until you either hit the bump stop, bottom out the shock, or bottom out other suspension parts. Everybody’s situation is different because of different shocks and different alignment settings. You can also install the wheel and check to see your wheel/tire clearances.
Now, you might be saying “well, now I know how much travel I have at my current ride height, but how do I know how much travel I NEED?” OK, time to determine that (and actually it’s probably best to do this step before you do any of the above work as it’ll save you time in the long run). To determine how much travel you need:
Put the car up on jackstands, adjust your suspension to increase your ride height. Go ahead and raise the car nice and high it’s only temporary.
Get 4 zip ties. Put a zip tie on each shock piston rod right above the bump stop (do this when the suspension is at full droop).
Lower the car back down to the ground. Roll it back and forth a few times to settle the suspension. Now raise the car back up on jack stands.
Get out your measuring tape again. The zip tie will have moved, by lowering the car onto the ground and thus compression the suspension this will have pushed the zip tie upward toward your top hat. Measure the distance between the zip tie and the bottom of your top hat (in essence, when the zip tie would “bottom out”). This number gives you your available compression travel at this ride height. Take this measurement for all 4 corners and write it down.
Lower the car back down onto the ground. Take it for a drive. Try to put the car through the normal type of driving you would do. The goal is to get the suspension to travel as much as it needs to. If you just cruise around smooth roads you won’t get an idea of how much travel you need over bumps, pot holes, during hard cornering… Just be careful since your ride height is different from normal and thus your alignment settings will be out of spec and the car may handle different from what you’re used to.
After driving the car for as long as you feel appropriate bring it back to the garage and get it back up on jackstands.
Get out the measuring tape again. The zip ties should have moved even more now from normal compression travel while you were driving. The zip ties will have moved to the point of maximum compression travel experienced. Measure the distance from the zip tie to the bottom of the top hat (same point you measured in #4 above). Record this measurement for all 4 corners.
Time for some basic math! Take the value from step #4 and subtract the value from step #7. This will give you the amount of compression travel needed at the shock.
You can now use this required compression travel to set your ride height. When setting your ride height you need to make sure that your static ride height puts at least that much distance between the top of your bump stop and the bottom of your top hat. But keep in mind, this is how much travel your shock requires, you need to also make sure that at that ride height your other suspension components have enough room to move. But that’s easily checked by the first procedure I mentioned.
archivethis
See this is what a forum is for! Great write up colin
Excellent write up.