BRZ suspension sucks!

[KoolBRZ]

Originally Posted by Captain Snooze

I am not familiar with steer on the rear of these cars. Could you point me in the direction of where I'd get more information?

Check out this link http://www.ft86club.com/forums/showthread.php?t=3002 . It shows a pic of the right side rear and the Toe/camber link is directly in front of the axle. I copied the pic and circled it below. since it is neither a horizontal, nor a vertically fastened link, it changes both camber and toe when the suspension is either compressed or extended beyond normal ride height. That means that, yes, it changes both camber and toe when you lower your car. This is one reason to keep the stock ride height. So the rear wheel steering will continue to work correctly.

[Shark_Bait88]

Originally Posted by KoolBRZ

I'd rather have predictable understeer than unpredictable oversteer.

So you're switching the suspension on a car that was tuned to have a more neutral setup and undertsteer for the suspension from a car that was tuned to have a rear biased setup that would induce more oversteer?

[Captain Snooze]

Originally Posted by KoolBRZ

It shows a pic of the right side rear and the Toe/camber link is directly in front of the axle.

That alters toe only. This is why they are called toe links or toe rods. Rear camber is altered via camber bolts or the lower control arm which is not doable with stock lower control arms. Hence the need for aftermarket lcas.

Originally Posted by KoolBRZ

it changes both camber and toe when the suspension is either compressed or extended beyond normal ride height. That means that, yes, it changes both camber and toe when you lower your car. This is one reason to keep the stock ride height. So the rear wheel steering will continue to work correctly.

You have not answered my question. The fact that the toe and camber changes when the car is lowered (or raised for that matter) is well known and is easily corrected. I am more curious about the rear wheel steering.

[Jaden]

This is my response to this thread...

[ame="https://www.youtube.com/watch?v=C3JzbWVDzac"]Billy Madison - "Everyone in this room is now dumber for having listened to it" [Legendado] - YouTube[/ame]

Jaden

[Calum]

Originally Posted by KoolBRZ

Check out this link http://www.ft86club.com/forums/showthread.php?t=3002 . It shows a pic of the right side rear and the Toe/camber link is directly in front of the axle. I copied the pic and circled it below. since it is neither a horizontal, nor a vertically fastened link, it changes both camber and toe when the suspension is either compressed or extended beyond normal ride height. That means that, yes, it changes both camber and toe when you lower your car. This is one reason to keep the stock ride height. So the rear wheel steering will continue to work correctly.

The length and thus the arch that the upper and lower control arms move through are what determine the camber curves, not the toe link. You may have too much toe out at the moment but that is adjustable via said toe links if you get an alignment.

I can't believe you've spent that much time and money replacing suspension parts but you haven't bothered to sort out your alignment. The alignment will make a large difference in the feel of the car, especially the symptoms you've described. Also if you read the threads/reviews on any damper they'll tell you there is a break in period.

[Captain Snooze]

Do the triplets exhibit rear roll steer? Given the wheel side/outside of the toe arms travels in an arc with wheel movement. When cornering could there be unequal amounts of compression and rebound that result in differing left/right toe changes?

[KoolBRZ]

Originally Posted by Calum

The length and thus the arch that the upper and lower control arms move through are what determine the camber curves, not the toe link. You may have too much toe out at the moment but that is adjustable via said toe links if you get an alignment.

I can't believe you've spent that much time and money replacing suspension parts but you haven't bothered to sort out your alignment. The alignment will make a large difference in the feel of the car, especially the symptoms you've described. Also if you read the threads/reviews on any damper they'll tell you there is a break in period.

No, that isn't what I mean. My alignment is better than stock. I'm just not used to feeling the rear wheels helping me around the corner because I have had stiffer springs on the rear for the last 10 months. The car has to lean to create a noticeable turning effect.

[Shark_Bait88]

Ok, I'm definitely convinced that this is an incredibly elaborate troll thread now.

[Calum]

Peace out koolbreeze.

[Digitalanalog]

Wat. Rear wheel steering? Please stop.

I've copied the exact alignment specs that i run on my m3 to my brz and it has drastically change the behavior of the car. You are doing something wrong and trying to find a way to justify it

[slicktop]

Having toe out on a car can make it seriously unsafe to drive. That "rear wheel steering" is the beginning of an accident waiting to happen.

Stop. Just stop. Get your damn car aligned before you cause an accident.

[Captain Snooze]

What about roll steer?

[themadscientist]

As the owner of an Atessa equipped Nissan and a DTSS equipped Mazda I can say, rear steering is bullshit.

[Captain Snooze]

Originally Posted by themadscientist

As the owner of an Atessa equipped Nissan and a DTSS equipped Mazda I can say, rear steering is bullshit.

I suspect Porsche may beg to differ.