BC Coilovers

[bkscott]

I ran mine a 1.5 with 275/315's. The only time I rubbed was the rear inner fenderliner with 4 people in the car, and I hit a bad dip at hi speed.

[Tmick5jr]

Originally Posted by CamaroSS sleeper

I have BCs about a 2" drop.
1. wheel offset can determine how much you can lower the car.
2. Camber Alignment (negative camber will help you tuck the tire, dont go crazy on the negative camber do.. -0.8 max or youll have tire wear problems.)
3. width if tire and wheel.

Im not sure on stock wheels..
but My setup is Zl1 replicas per GM specs
11" wide wheel rear with 295/35/20 michelins -----10" wide wheel front with 275/40/20

clearance is tight as a virgin in my car, but no rubbing

I've been running a -1.5 forever and i have no abnormal tire wear... in fact my outsides are slightly more worn

[pbclax1]

Thanks for all the responses. This is what i would like to get it to something around.

[pbclax1]

Current height

[CamaroSS sleeper]

Originally Posted by Tmick5jr

I've been running a -1.5 forever and i have no abnormal tire wear... in fact my outsides are slightly more worn

-1.5????? is this your weekend car? track car?
I had -1. but couldn't get the rears to hook for shit.. I would just sit there like I was on butter.
I have a long commute 60 miles per day and with soft tires they go by quick. at least that was my experience.

wear on the outside indicates toe issue or bad shocks,or crazy driving!

[CamaroSS sleeper]

Originally Posted by pbclax1

Current height

I wonder if the offset on the new wheels is different from the old style.
you can see other people are lower without rubbing on stock wheels, but the older style.

[Tmick5jr]

Originally Posted by CamaroSS sleeper

-1.5????? is this your weekend car? track car?
I had -1. but couldn't get the rears to hook for shit.. I would just sit there like I was on butter.
I have a long commute 60 miles per day and with soft tires they go by quick. at least that was my experience.

wear on the outside indicates toe issue or bad shocks,or crazy driving!

When i see a corner i dive in, and i have a track day in them. just looking at the wheel you can't tell that its angled in with a -1.5. and i know plenty of people with -1.5 that experience no abnormal tire wear, especially with p zeros. Just my experiences

[pbclax1]

Lowered front another 1/4" and back another 1/2". Pretty much have no space left to adjust the fronts anymore...


Total drop is 1.5" all around

[pbclax1]

Went through and rechecked the fronts today. Preload is set to the "recommended" 4mm but I am pretty much maxed out on drop for the fronts...Im not understanding this?

[pbclax1]

If anyone can help that'll be greatly appreciated. I contacted bc and provided pictures and their response was to take out the middle perch. I can understand if I was trying to slam the car but I am not. Currently I am at a 1-7/16" drop in the front. I have maybe 1/8" between my perches. Preload is set to 4mm as bc recommends.

In the back I have atleast 3/4" left to drop on the Coilover if I wanted but my fronts are maxed out. Attached pics of the springs and current front wheel height compared to fender.

[pbclax1]

The spring

[fif_gen_powa]

Are you undoing the lowest perch and threading the coil down or just lowering the perch that keeps the spring in place?

[pbclax1]

Originally Posted by fif_gen_powa

Are you undoing the lowest perch and threading the coil down or just lowering the perch that keeps the spring in place?

I am loosening the lowest lock perch and threading the whole assembly downwards as is recommended to not effect preload.

[fif_gen_powa]

The only other thing that comes to mind is to "time the bushings"
There's a few threads on here about it