Chris, we are pretty happy with them. I'll know this weekend if we are going to Milwakee for sure and if we are you can bet that's the tire we will be on.

I saw you post on sccaforums. That's about what I'm seeing. What suspension parts are you using?

d

In 14.8 B the rules state that an offset bushing may be used, however, it also states that it does not authorize the use of an angled hole whose direction differs from that of the original bushing. The OEM toe bushing does not allow for adjustment in the similar fashion as the bump steer kit does with the offset bushing sleeve, hence why I have been hesitant to install mine. Although I've heard of other guys running them..

One other thing, what is the decision on rear strut bars for cars not equipped with them from the factory. I thought they are allowed so long as they only have 2 connecting points but, have heard that this is still up in the air.

The general ST strut-bar-one-axis-stiffening rule was rescinded in a fasttrack in the spring. To my knowledge no new rule has been put forth.

As for the rear. What's the point? As chronohunter would say "There's no struts back there."

d

I use my strut bar as a place to tie down my fuel jugs so that they don't roll around on the way to the parking lot

It's not an angled hole, so we're good there.

I would agree with that, but the only difference in adjustment is the bushing is offset which the rules state is legal; so until someone comes up with a valid reason (maybe there is one, I'm not an expert) I don't think it's fair to call them iffy.

I'm not understanding why the WL bumpsteer correction kit on the rear of the Evo would ADD understeer when the point of the kit is to eliminate it. What gives? Did some of you install them the wrong way?

I'm on the zzyzx coilovers.

The design of the WL bumpsteer kit or any bumpsteer kit for that matter is to minimize the natural suspension toe-in under compression, or should I say, gain back what is lost when the car is lowered. I know of no bushing bumpsteer kits that completely eliminate it. Ideally, a perfect-world bumpsteer kit would cause a little bit of toe-out during compression, at least in autocross, to help rotate the car. It might make it loose, but that can be tuned out.

The WL kit raises the front control arm at the body point, again, only to gain back what is lost. IMHO, it does not raise it enough, but that is the limit of the OEM suspension parts.

One thing though, when installed, you loose some of the movement to bring back toe-out to a respectable position. On mine, driver side was fine installed per directions, passenger side needed a slight bushing rotation/adjustment for a proper setting.

Properly installed, it should not cause the car to "understeer".

Dave

How do you like these? They're high on my list of candidates.

I love them. Considering the really high spring rates we are running the car rides incredibly well. They have lasted too with no problems what-so-ever. I have logged 51+ thousand miles on them in my car. They are easy to dial in and in my opinion very competitive nationally for an autocross coil-over. Next season we will be doing some time attacks in the car so we will see how they hold up to the riggors of a track but I have no worries.

Dave are you sure about that? From what I read the bumpsteer kit just keeps the toe in check when the suspension is compressing. A lot of suspension tuners say you want the toe to be in check as the suspension moves through its range of motion. The EVO has a natural tendency to toe out under sever compression (per Chronohunter) in the rear, the bumpsteer kit just helps dial out some of that toe under rear compression so that the car is not as "darty". So it a way it should promote a little more understeer while keeping the toe in check.

I didn't like the bumpsteer kit. Pulled it after 2 events and made some more drastic changes to get this pig to turn.

Dave is correct. It's just an offset bushing that helps you dial in the toe after doing ride height and/or camber changes. With the bushing you can still set the car to have toe-in or toe-out which will be the factor in oversteer versus understeer. I wish they never would have called it a "bump steer correction kit". It sounds way more fancy then it is.

+1

I drive my car 6 hours one way for Milwaukee events which I've done about 4 times this year, plus a trip to Indy. Even with no engine mods my co-driver and I have been PAXing quite well at fairly competitive Milwaukee events. The coilovers are a HUGE part of that.