I asked this question in the advacend forum and they refered to here.....for whatever reason. So yes, I have not done any swap on sway bar and touch it for that matter.


https://www.evolutionm.net/forums/br...-now-what.html


Add the Lower Arms Bar Version 1 and 2, and Front Center. Currently, I have Ohlins coilover - lower about 0.5" from stock height...so don't think that the geometry is off. I have stock front tower brace and DC Sport rear tower brace. This is an Evo 9 with setting Tarmac on road course. The tires are Continental SportContact 2.

Before adding the brace, it has a minor understeer. Now, the understeer is very noticeable...same shock/center diff setting.

I brake/double clutch downshift....turn the wheel....trailbrake into the corner...hit apex.....gently increase the gas. Standard procedure. The understeer exhibits heavily in the turn in.

Any idea?

Increase front sway bar size?

Add their complete brace kit?

Change the front tower bar?

Increase front Camber?

I would've expected increase rigidity in the front would help the front to get more grip, inducing oversteer....

 

I dont have an Evo but my experience was that with the car in stock form, I added a rear lower tie bar and there was a very noticeable difference. The car showed less understeer at turn in and in long sweepers as long as I kept slightly on the throttle it would stay pretty much neutral.

Are those lower arms fully adjustable? If they are, did you make sure you set them to the stock length? If so, then I would think of two things:
1.consider stiffening up the chassis at the rear of the car to balance out the front
2.softer front Damping setting since at first the chassis was doing some of the damping thus taking of some work from the front suspension. Since now the suspension is doing everything, it could be telling you that it was too stiff.

 

IMO.....placebo. I just don't see the real world explanation behind this.

 

So why front tires squeal and I lose grips in the front....the car is heading straight when the wheels are turned AFTER I put the braces on....that's placebo?

Before, it was doing less...going into the same corner, same gear, same RPM.....

Explain more please.......

 

Get an alignment.... go in slower get on the gas sooner!