BMI Racing "Copperhead 12" discussion and support
#1413
Tech Champion
Naw I'm too lazy to do it that way. I set my ride height with the droop screws backed out. I then slide a piece of paper under the droop screw and tighten it until it has a fair amount of drag on the paper. I then set the other side to about the same amount of drag.
#1415
in order to get it even and quantified:
1) back off on the droop screws
2) set the ride height to the desired ride height+0.25mm+droop.
3) set the droop screws to reduce ride height by 0.25mm
(now the ride height should be at the desired rideheight+droop
4) set ride heigth to desired ride height.
its not as bad as it sounds.
#1416
Tech Champion
Why are you doing .25mm + droop instead of just + droop? The way you outline would give you .25mm more droop than you want.
#1417
does that make sense?
you set the ride height a little high, bring it back down with the droop screw to the desired upstop, then back off the ride height to where you want it be.
nothing is cut in stone or anything, just trying to find a repeatable, quantifiable, and convenient way to set droop.
#1419
the idea was to use a ride height gauge in the usual manner, but to set droop. i can reverse gravity, but i can lift the car above the desired ride height and then adjust the droop setting or 'upstop' based on the ride height.
i want to have equal preload to set ride height against the upstop. if there is too much preload or uneven preload, then there can be deformation in the lower arm that dorks the measurement.
#1421
yeah, at first i tried to set the ride height then add a spacer or something to set the upstop, but nothing was more reliable and easier than just setting the upstop first then backing off to the desired ride height.
#1422
Tech Champion
Ah I see what you are doing...your using the pre-load to set the ride height to it's "drooped" ride height with the droop screws then dropping the car down to it's actual ride height with the ride height screws. However I still don't see the need for the extra .25mm...even with the pre-load your droop screws should be the proper setting for the droop...so all you should have to do is set the ride height.
#1423
Ah I see what you are doing...your using the pre-load to set the ride height to it's "drooped" ride height with the droop screws then dropping the car down to it's actual ride height with the ride height screws. However I still don't see the need for the extra .25mm...even with the pre-load your droop screws should be the proper setting for the droop...so all you should have to do is set the ride height.
the extra preload to have some adjustment in the droop screw setting that i could monitor with the ride height gauge.
#1424
Tech Champion
Regardless of if the droop screw is just touching or has significant pressure on it...the suspension can't travel any farther than that. So if you add enough pre-load to overcome the weight of the car you could set your ride height + droop with the droop screw then set your final ride height with the ride height screw alone.