This weekend I installed the bmr adj uca and mount. The car felt the best it ever has. My LCAs were at pointing up to the axle. I received the LCA relo brackets to fix that, and bolted those on, with the LCAs on the lowest hole. The car feels worse.

I'm hoping I just need to go to the middle hole and try to get the LCAs level with the ground, I'm planning on adjusting them tomorrow. I just wanted to make sure there isn't something I'm missing!

 

How does it feel worse? And how low is your car on the coilovers?

 

I'm probably at about a 1.7" drop right now. The rear end just doesn't seem as tight or predictable.

 

Might be they are too low. Slightly perpendicular to the ground is what I think you want since stock the LCA's I believe are parallel or slightly perpendicular to the axle. Are the Eibach's two way or just single adjustable?

 

They are only height adjustable, no rebound or compression adjustments. I'm hoping I can move the LCAs to the middle and regain the feel I had before the relo brackets.

 

Gotta setup instant center, measure angle of pinion and dtiveshaft, set angle accordingly. Examples - 2 degrees

 

Yeah, what is the pinion angle set at currently?

Having all kinds of adjustment is great but you have to have a baseline setting to start from.

 

LCAs should be angled down slightly towards the rear. You may have your LCAs angled for optimum launch traction, which won't do much for your cornering. Mine are angled slightly up after a 1.25" drop and my traction isn't great. Wheel spin is very smooth and predictable, though. I'm going with some Whiteline brackets in a couple weeks. Please post your findings.

 

There's a good post here explains instant center, anti-squat and why you want the lower control arm to be almost in-line with the axle, rather than adjusted all the way down.

 

What brand lca and relos do u have ?

 

I appreciate everyone's input. I have the bmr relo. brackets with the factory LCAs, I'll replace the LCAs eventually with some non adjustable aftermarket.

I moved the LCAs to the middle hole of the relo and it made quite an improvement. The LCAs are now nearly parallel to the ground with a slight angle down to the axle. I still want to say it felt better with the LCAs pointed up to the axle??? I don't know why that is.


I tried to get some accurate degree measurements using an angle finder, but I couldn't seem to get the angle finder to sit flat on the pinion yoke to get a solid number.

I think I'll select a ride height, get my new wheels and tires, then have a full alignment done including checking
/adjusting the pinion angle.

Before the uca, my driveshaft would contact the tunnel on hard launches or big bumps, I'm glad that's dealt with.