BRZ suspension sucks!

[Ultramaroon]

Originally Posted by Koa

ugh Kool, I really am starting to think you're the world's most elaborate method-actor or troll... you do so much dang tinkering for the silliest things and report the most odd problems

It's The Couve so you may be onto something. ...sadly.

[KoolBRZ]

I don't know what the toe/camber links are actually called. That's just a descriptive name I use for them. There are short links on the rear suspension that changes the toe angle based on how compressed or extended the suspension is. The result is, a rear end that turns when it leans. It points the wheels to the outside of a corner, helping to rotate the car. It also tends to turn the car a lot sharper than you intend as soon as the weight shift starts causing body lean. I knew it was there, but this is the first time it was causing me to over-correct in a corner. The softer rear springs of the BRZ are inducing oversteer by increasing body roll, which makes the toe rods change the direction the rear tires are pointing. I'd rather have predictable understeer than unpredictable oversteer.

[Bergen23]

I can't even

[Captain Snooze]

Originally Posted by KoolBRZ

There are short rods on the rear suspension that changes the toe angle based on how compressed or extended the suspension is. The result is, a rear end that turns when it leans. It points the wheels to the outside of a corner, helping to rotate the car.

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?

[redlined600]

I think you should look at the rear suspension a little closer.

[swarb]

first you need anti-reversion headers so you have have all that torque down low at 2k rpm/20mph
second you need frs springs in the front and brz in the rear, make sure your tow rods are set correctly.

Originally Posted by Captain Snooze

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

[Stang70Fastback]

Originally Posted by Captain Snooze

Monty Python and the Holy Coilovers.

LOL.

[Racecomp Engineering]

I will say that of all of the post/threads I have ever read on all forums since 1999 this one is the most ....."interesting"....by far !

Myles

[pantdino]

If you all figure out how to make my '13 FRS ride less harshly, let me know.


In my '95 M3 I know the road is not completely smooth, but the 2-3mm bumps are smoothed just enough they don't get annoying. In the FRS I swear I could feel driving over a penny.


That is unnecessarily harsh for a street car.


And PLEASE don't tell me BMW doesn't know anything about suspension design.

[boredom.is.me]

Shouldn't you be working on a new forum name?

[chaoskaze]

I like this guy, he test everything himself & focus on wuts important to him ONLY. Can't wait to see more haha

[jvincent]

Originally Posted by Captain Snooze

*shudder*

Don't worry, KoolBRZ isn't our favourite lawyer from Calgary.

If I am wrong, then I have severely underestimated Suberman's writing skills.

[KoolBRZ]

Originally Posted by pantdino

If you all figure out how to make my '13 FRS ride less harshly, let me know.


In my '95 M3 I know the road is not completely smooth, but the 2-3mm bumps are smoothed just enough they don't get annoying. In the FRS I swear I could feel driving over a penny.


That is unnecessarily harsh for a street car.


And PLEASE don't tell me BMW doesn't know anything about suspension design.

Are you still on the stock tires? I have 3 sets of tires I've tried, all sized 215/45/17. Les Schwab studless performance, Michelin Primacy, (stock), and Michelin PSS2. The PSS2's have very firm sidewalls and don't soak up the bumps. The best riding FR-S I've driven had stock suspension and 225/45/15 performance all-season tires. It rode better than my wife's 2011 Corolla. He had groceries in the trunk, so I couldn't really pitch it into the roundabout's without scrambling some eggs, if you know what I mean. That's what really blew my mind. All this guy did to his FR-S to get a better ride was get a slightly bigger set of tires. You already have FR-S suspension, so you're halfway there. I will be mounting my Bilstein HD shocks with FR-S springs this weekend. I want to try using the tophats from my HKS struts because they soak up more vibration and have camber adjustment in front. I won't know till next week, but I think your best ride is with the FR-S spring rates of 2.7 N/mm front to 3.7 N/mm rear.

[DAEMANO]

Originally Posted by Mr.Impreza

This is actually how i feel with my Subaru. I have the Cusco Zero 2 coilovers and for the first year thought it was cool and loved them but now regret the purchase everyday because it drives pretty bad haha....good luck getting a coffee in that car

It's why I'm not planning to touch the suspension on this car. People say it has a wheel gap...i don't really think so...it's already so low and looks good. Also when a car is lowered you lose a lot o the fun factor unless your on a race track.

Only thing i may consider in the future is TRD springs

TRD Springs on stock struts will feel hard (supposedly they're the same as Eibach Pro-Kit which is firmer than stock). If you want more comfort, choose either a slightly softer but not too low spring (like "RS*R Down Sus" (not "Superdowns" unless you change the bump stops too) or go with a softly sprung coil like ST Coilovers, or RS*R Black-i or Sports-i.