BRZ suspension sucks!

[themadscientist]

Don't kill his dream. Steer into the skid you magnificent lunatic!

[Ultramaroon]

Originally Posted by themadscientist

GM put a flat six in the back of a car once. And?

fify

[themadscientist]

Dammit, you're right; I had Subaru on the brain and forgot it was a six. CURSES!

[Captain Snooze]

Strumming my pain with his knowledge
Stinging my life with his words
Killing my brain cells with his wrong
Killing my brain cells with his wrong
Telling my whole car with his words
Killing my brain cells with his wrong

I read he sang a bad song
I heard he had a style
But not in a good way
To chuckle for a while
And there was this weird forum post
Total weirdness to my eyes

Strumming my pain with his knowledge
Stinging my life with his words
Killing my brain cells with his wrong
Killing my brain cells with his wrong
Telling my whole car with his words
Killing my brain cells with his wrong


[ame="https://www.youtube.com/watch?v=dpNdMIAnKko"]Roberta Flack - Killing Me Softly With His Song - YouTube[/ame]

Apologies to Charles Fox and Norman Gimbel

[Ultramaroon]

Originally Posted by Captain Snooze

Apologies to Charles Fox and Norman Gimbel

At least! Now what about the rest of us?

[Captain Snooze]

lol

[Ultramaroon]

Originally Posted by themadscientist

Dammit, you're right; I had Subaru on the brain and forgot it was a six. CURSES!

Well played. Excellent recovery.

[redlined600]

Originally Posted by KoolBRZ

Calm down. My car is aligned. The way the car is designed, it will toe the outside wheel out and the inside wheel in when it leans over. It doesn't mean you can parallel park the car sideways. I'm only mentioning it because I'm not used to my car leaning in the corners. I'm changing to the stiffer FR-S springs this weekend anyway.

Please go into more mechanical detail on why you think this.
Either
A. The suspension doesn't work the way you think it does
B.You have the terminology mixed up.

Just trying to help people understand.

[TheVoiceOfReason]

Sounds to me that we may be talking about bump steer

[tahdizzle]

[KoolBRZ]

Originally Posted by redlined600

Please go into more mechanical detail on why you think this.
Either
A. The suspension doesn't work the way you think it does
B.You have the terminology mixed up.

Just trying to help people understand.

I'll go with (B.). I just know what it does. I don't know what it's called. I just know that the rear wheels toe out on compression, and toe in on extension. The tracking link goes through an arc when the wheel is compressed or extended. At the bottom of the arc, when the suspension is extended, it pushes on the wheel. At the top of the arc, when the suspension is compressed, it pulls on the wheel. When I'm taking off the struts this weekend, and I'll see if I can get some pics of the suspension compressed and extended.
So, what I believe so far, if you want a softer ride and you have a BRZ with stock suspension, install stock FR-S suspension instead and slightly taller tires, (225/45/17), and if you have an FR-S with stock suspension, and you want a softer ride, just get slightly taller tires.

[Racecomp Engineering]

Originally Posted by KoolBRZ

I'll go with (B.). I just know what it does. I don't know what it's called. I just know that the rear wheels toe out on compression, and toe in on extension. The tracking link goes through an arc when the wheel is compressed or extended. At the bottom of the arc, when the suspension is extended, it pushes on the wheel. At the top of the arc, when the suspension is compressed, it pulls on the wheel. When I'm taking off the struts this weekend, and I'll see if I can get some pics of the suspension compressed and extended.

First, lets call it bumpsteer.

Second, lets read the MotoIQ article that you linked to:
http://www.motoiq.com/MagazineArticl...cion-fr-s.aspx

"The rear suspension is very similar to the GE Subaru Impreza, being a somewhat unremarkable multilink. The suspension has toe in under roll, a moderate amount of camber gain under roll and a bit of anti squat in the geometry."

Like many cars, the rear of the car toes in under compression.

Third, this has nothing to do with ride quality and nothing to do with the handling difference between FR-S and BRZ since geometry is the same. The difference is the spring rates, which are mildly stiffer in the rear and mildly softer in the front for the FR-S. Both are bumpstop active at the front and rear.

Both cars ride and handle pretty well stock IMO. The difference in ride between the two is negligible. The difference in handling is subtle, but noticeable.

If you want to improve ride for cheap, Bilstein B6 HDs and the right tire would be a good choice for smoothing out larger bumps. If you really want to, you could custom valve the Bilsteins for a little extra.

- Andy

[redlined600]

Originally Posted by KoolBRZ

I'll go with (B.). I just know what it does. At the bottom of the arc, when the suspension is extended, it pushes on the wheel. At the top of the arc, when the suspension is compressed, it pulls on the wheel.

So you have toe in and toe out confused. That's part of the reason people are giving you such a hard time.

Toe in = front of wheel points toward center of car
Toe out = front of wheel points out from center of car

In the rear, toe in generally makes the car more stable. Toe out generally makes it less stable.

Also this is not really active steering as the amount toe change is small.

[Panman]

Originally Posted by Racecomp Engineering

If you want to improve ride for cheap, Bilstein B6 HDs and the right tire would be a good choice for smoothing out larger bumps. If you really want to, you could custom valve the Bilsteins for a little extra.

- Andy

QFT - I have the B6 with Invos for Daily on 17x8 and love them.