pcmw

Hmm....

I would refer you to read Todd's threads on the lower arm bushings. Anytime there is more than normal stress to the suspension geometry from lowering, altered offset, heavier wheels, or worn bushings... tramlining may occur. It basically means that the stocks setup can no longer adequately control that wheel.

MW

strongsail

my sc4 has stock wheels & tires and it tramlines on pavement seams and tries to climb lane grooves on the freeway, but not badly. I think tires affect it too. But I've always noticed that negative camber equals sensitive steering, and it can be too much, and tire wear is an issue too. The stock front camber setting on the SC is almost zero. If you lower the car or change its track by changing offset, and you don't do alignment, you can end up with a car that's uncomfortable and, worse, unpredictable.

You really should read Iain's thoughts on this topic. He's right when he says feedback vs. comfort in your alignment settings are very personal. He doesn't pay for alignment by the job - he pays in advance and may align the car several times every time he changes wheels, tires, brakes, etc.

sc4oo, all things being equal, with proper alignment, you will still get a lot more road feel through low profile tires, for sure.

pcmw, you're right too, when you deviate from the geometry that the carmaker designed into the car, you will get wear rates and failures that you wouldn't get otherwise.

strongsail

lex400sc, why doncha try 10mm spacers in front and 15's in back - I'd be real interested in what differences you notice - and if you don't like how the car feels, just pull out the front spacers or get the suspension aligned - I don't think rear spacers will affect things much either. Hey, if you're doing springs too, front and rear alignment will have to be part of the whole project anyway, I'd think -