I'm going to add adjustable rear lower control arms after I lower my mcs with eibach springs. I'd like to use h-sport arms, but I have a concern that the control arms are not in a plane that is [parallel] [edited] to the vitrtual pivot axis, which means that the end bolts need to rotate a little to prevent binding.

I realize that the urethane in the h-sports will give a little, but when I asked h-sport about this geometry, I didn't get an answer.

So, did any of you who use these arms check for free movement of the suspension with the shocks and sway bar disconnected? Or does somebody know the answer to this for sure?

Thanks
Flyboy 2160

 

Not only are the lateral links not in the pivot plane, they're almost tangential! My guess is you didn't get a response from H-Sport because the answer is quite obvious. However, the magnitude of the angle versus travel ratio is minimal, and apparently not enough to cause binding by either the stock rubber bushings or H-Sport's polyurethane. I do not doubt both the stock bushings and polyurethane's are twisting throughout the suspension travel; however, we're talking the equivalent of a few foot-pounds of spring here, hardly worth mentioning.

If it makes you sleep better at night, grab a pair of spherical bearing links, and prepare to feel every crack on the road, as well as be shoved into SM in Solo2.

Good luck,
Ryan

 

>>I'm going to add adjustable rear lower control arms after I lower my mcs with eibach springs. I'd like to use h-sport arms, but I have a concern that the control arms are not in a plane that is normal to the vitrtual pivot axis, which means that the end bolts need to rotate a little to prevent binding.
>>
>>I realize that the urethane in the h-sports will give a little, but when I asked h-sport about this geometry, I didn't get an answer.
>>
>>So, did any of you who use these arms check for free movement of the suspension with the shocks and sway bar disconnected? Or does somebody know the answer to this for sure?
>>
>>Thanks
>>Flyboy 2160

Give Randy Webb a call and see what he says. I don't think you have to worry about this. Let us know what he says.
He has installed the H-sport control arms with various spring sets. I have the H-sport springs and rear control arms and I don't have any binding or problems.