AdvanSRT-4 said:
madneon said:
Since there seems to be a few on here runnin the BC's we need to do a mass pm or post to find out the best set up for our rides (ie, spring preload ...etc) I have adjusted my preload but after reading this I might tighten my preload a little I didnt realize that makin it looser would give me a bouncer ride if anyone has any more input post or pm....oh yeah the bottom ring if you loosen that and spin the CO housing it will lower or raise the car after you are done tighten it back up
I like that idea. Would be nice to know. :thumbsup:
I'm still kind of lost about the bottom ring. I thought you adjust the top ring to lower it. :huh: I'm lost :lol: (Like I said earlier, I'm learning)
The top rings that are immediately below the spring are for preload, yo uloosen the lowest of the two, and raise the upper ring to raise the preload, or lower it to reduce preload. The lowest ring that is above the mounting threaded body is how you raise/lower the overall height of the car.
To lower the car, you must first preload your springs, you do this by simply removing the wheel, leaving everything bolted up, and tighten the upper ring until the spring no longer moves freely, then raise it more to rais the preload, on my car, I gave it one inch of preload on each corner, then you tighten the second lockring against the upper one to lock your spring perch (first lockring). After you are done measure each rear coilover from the tophat to the first lockring, the rear two coilovers should have the same measurement, and the front two should also be the same, but the fronts will be different than the rears because the two springs are different lengths.
After you have set the preload on all four corners, put the wheels back on the car, and drive it around the block (but not too far), to make sure your tires are flat on the ground.
Then measure the cars ride height from the ground to each fender lip, and add whatever measurement you want the car to sit at to your equation. Then you have the distance you will raise or lower the bracket/body of the coilover.
So lets say you measured the car at 23-1/2 inches off the ground on your front fenderlip, and your rear is 24-1/2" off the ground, and you want your car to sit at 24" all around. You would lower the rear 1/2", and raise the front 1/2", duh.....heres how you do that.......
Raise the front of the car in the air, take off the front tires, loosen the lowermost lockring (3rd one), unbolt the coilover from the knuckle and slide it off of the knuckle, push the coilover out of the way so you have room to turn the lower mounting body 360*, since you want to raise the front, you would unscrew (clockwise) the lower mounting body 4 times (each turn is approximately 1/8"). Then bolt it back onto the knuckle, and lock the lower lockring against the mounting body, it is easier to lock it against it if the coilover is bolted up already, the same for unlocking it.
Do the same for the rear, but you want to turn the body in the opposite direction (counter-clockwise), this shortens the coilover, lowering the car.
There is an easier way to do it, by twisting the coilover body without unbolting it, but this is VERY bad for the internal valving, so don't be lazy, do it the right way!!!
Then set the car on the ground, drive around the block, and remeasure, if your measurements were accurate prior to doing the adjustments, your car should be sitting 24" off the ground all around.
madneon said:
Since there seems to be a few on here runnin the BC's we need to do a mass pm or post to find out the best set up for our rides (ie, spring preload ...etc) I have adjusted my preload but after reading this I might tighten my preload a little I didnt realize that makin it looser would give me a bouncer ride if anyone has any more input post or pm....oh yeah the bottom ring is there to keep the ring above tight as well as not allowing the CO thread body to move....I think I got that right
My preload on all four corners is set at one inch tighter.
My bound/rebound (damping) settings are set as follows.
1softest/32hardest
Daily Driving:
F-6/R-3
Sprited Street:
F-10/R-8
Mountain Road:
F-16/R-14
I haven't done the following, but my settings will be as follows...
Autocross:
F-18/R-16
Road Course:
Upped Pre-load to 1-1/2"
F-20/R-18
Drag Racing:
Upped Pre-load rear only 2"
Reduced Preload front only 1"
F-25/R-32 (higher rear to negate weight transfer on launch)