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Originally posted by mx-k: What is the purpose of them then? Are they only good if you use them along with other suspension upgrades, or are they just there for looks? they stiffen the chassis, which is a good thing. But it's not going to physically change how much grip the car has. It doesn't play...

umm, strut tower bars won't do a thing for ya.

umm, figure out the corner weights and then just use the spring rates to figure it out.

They'll all be different.

Originally posted by marshmallow15:
ugh please dont remind us of this subject.

anyway i thought it was 350 front and 450 rear?

That would be terrible. Honestly.

IE, very stiff, but the spring rates are close in ratio to one another, but would need a bit more sway bar in rear.

you have an alignment problem, not a tirewear problem.

do you get fender rub under hard cornering?

Originally posted by Steeb: having less springs for same weight... ok yes stock progressive rate springs get stiffer as you compress them but with less spring they compress faster given the weight sitting on top of them is still the same. my point is even if it is stiffer your going to bust a hole ...

Originally posted by Steeb:
your suspension could not have gotten stiffer suspension by cutting your springs.that alone is common logic...

Umm, yes it could. Look at the formula for spring rate.

something you might also want to consider is that it hit a freaking Dodge Dualie...that thing wasn't light either, and we don't know the speeds involved.

konis will do fine with super low springs...

but you'll need to get them revalved when they blow.

Having less than an inch of suspension travel (what happens when you lower that much) will blow EVERY damn shock out there.

well that's good.

the Mazda dealership here is full of idiots.

are those in degrees? If so, they are horribly out of spec. My ~half inch is .37 each side. And when you put the camber bolts in, it gives you freeplay, so if you tried to get rid of some camber, it should be noticeable. It depends on where you tightened them. and FWIW, unless you've got a good shop...

Originally posted by Ryencool: p.s. it isnt the toe. I dont know how many times people have tried to tell me this. If the toe is not dead on, which mine isnt your car pulls to one side, so my stearing wheel is slightly off center. this means toe has no effect and im not dragging the tires cause im ...

keep in mind that the stock one is possibly hollow...

also, sway bar stiffness is determined by the square of the diameter, so a small difference in diameter makes a big difference with the car.