Lowering

[rob the elder]

Originally Posted by wspohn Has anyone bump steered a Solstice? Ground clearance considerations aside, I wonder if dropping one a couple of inches wouldn't introduce some unwanted bump steer.

In my case, the only difference that I noticed was a bit harsher ride because of the reduced travel. I noticed no difference in steering.

I reduced the preload on the springs which helped but it is still noticably harsher than stock.

[idkfa]

Originally Posted by wspohn It's pretty routine to check this when building a race car, and I just figured that one of the serious solo or race guys would have done it, but I guess they aren't watching this thread!

I wonder if it's been answered over on the scca boards. If you ever do hear back, I'd love to know as well.

[Carpe Diem]

Originally Posted by rob the elder Here are some of Punisher at various heights. One of the advantages of BC is you can move it up and down when you wish.

Get Mysti out of the shop tomorrow. Hood dents gone and new front facia and passenger-side grilles. Having the front arrowhead emblem and bump removed. (A nose job.). Anyway, while she was up on the rack, I was looking around underneath. I see some damage to the exhaust flex coupler and a couple other spots from rubbing over speed bumps. She's lowered 1-1/2", and I supposed she's settled a bit more than that. I have BC coil overs as well.

Rob, did you have The Punisher realigned each time you changed the ride height?

[Carpe Diem]

Originally Posted by wspohn Has anyone bump steered a Solstice? Ground clearance considerations aside, I wonder if dropping one a couple of inches wouldn't introduce some unwanted bump steer.

I believe bump steer is a factor af alignment rather than ride height - specifically toe-in and camber. There are several threads here that discuss bump steer.

[TomatoSoup]

Originally Posted by Carpe Diem I believe bump steer is a factor af alignment rather than ride height - specifically toe-in and camber. There are several threads here that discuss bump steer.

Yes, but changing the ride height changes the relative angles of all the suspension parts, moving them of of their designed 'sweet spots'. Thus a bump can have a more extreme effect on toe and camber angles than it would at the original ride height.

Not an expert here, so don't know that it WILL have such and effect, just that it could.

[wspohn]

I asked the same question on the Kappa board in hopes that a solo type who has been through it would respond (nothing so far).

Good explanations at

Bump Steer Explained - Circle Track Magazine

and

Longacre Racing Online -- Tech Article "Bump Steer "

Dave at DDM said he may have a graph of toe vs. suspension travel for the Kappa suspension and will post if he can find it. I'll repost here if he doeas.

[jeff465]

I had a friend that owned a 1970 trans am Mustang (ex Jones car I think). Ford relocated the upper and lower control arm chassis mounting holes 2" higher.

[jackl]

Eibach Pro(gressive) on my 2006 Sol...

Other info in signature... Cheers!