Standard Shocks vs Sachs Performance package

[Racecomp Engineering]

You can definitely make these into nice GT cars with better handling and ride quality than stock. With a 1 inch drop too.

- Andrew

[Ernest72]

Originally Posted by Racecomp Engineering

You can definitely make these into nice GT cars with better handling and ride quality than stock. With a 1 inch drop too.

- Andrew

I was leaning towards yellows and B6, you think they will do that?

[N_Raged]

Originally Posted by Ernest72

I was leaning towards yellows and B6, you think they will do that?

Bilstein B6/B8 are monotube. And monotube shocks are more performance oriented instead of comfort oriented, so no. GT means comfort so you're better off with twin-tube shocks.

I've lowered my Saab on Eibach Pro-Kit's (1.2" drop) and its B6 shocks HATED it. The ride was attrocious after. IMO you need the B8 for any amount of lowering.

[ZDan]

B8/B6 ride fine, better than stock PP Sachs for sure.
Also B6 are fine for lowering up to about an inch, springs won't be "loose".
I got B8s with 1.25" lower Swift springs but with further research I found that people have run the same springs with B6.

Originally Posted by N_Raged

Bilstein B6/B8 are monotube. And monotube shocks are more performance oriented instead of comfort oriented, so no. GT means comfort so you're better off with twin-tube shocks.

I've lowered my Saab on Eibach Pro-Kit's (1.2" drop) and its B6 shocks HATED it. The ride was attrocious after. IMO you need the B8 for any amount of lowering.

[Yoshoobaroo]

Originally Posted by ZDan

B8/B6 ride fine, better than stock PP Sachs for sure.

Good to hear, can you elaborate? I test drove a PP a few weeks ago and I HATED the bounciness in the front. Hoping that RCE yellows with B6s will be more compliant.

[ZDan]

Originally Posted by Yoshoobaroo

Good to hear, can you elaborate? I test drove a PP a few weeks ago and I HATED the bounciness in the front. Hoping that RCE yellows with B6s will be more compliant.

My impression is the Bilsteins have less high-speed damping (less harsh/crashy) and more low-speed damping (firmer under braking/cornering, maybe a bit less bouncy over undulations with stiffer springs vs. Sachs)

[Racecomp Engineering]

B6 and RCE Yellows is a great combo.

It was my plan for my own car, which was initially supposed to be an all around street fun daily driver. Lots has changed since then with my car, but it's still a great combo!

- Andrew

[sneaky_pete]

Originally Posted by nashcarr

Big difference from BRZ w PP. Have driven and ridden in it. She has as well. The TRD springs on anything but smooth roads are crap.



They didnt do their homework and they are really not damped properly with the TRD lowering springs. Down at the Dragon they were great, but I live in Ohio where the roads blow


I COULD buy some OEM springs and swap them out or by coilovers as well.


I could also complain about the TRD springs since they are under warranty, they MIGHT replace them, who knows???

I swapped out the stock springs in my MY14 86 GTS (Australia) and put in the TRD units along with the TRD sway bars.

i doubt our roads are any better than yours.

In terms of ride quality I find very little difference between the stock springs and the TRD in their initial travel, the TRDs are a tad firmer for sure but still comfy for most conditions. when you hit bigger bumps the TRDs hit the bumps stops which is to be expected since they are lower, even though the bump stops are smaller - reaching the limit of the travel in the damper I guess.

the most noticeable difference between the two is how flat the car sits in corners, way flatter with the TRD springs, the sways will have something to do with it too.

there would have been a fair bit of development work go into the TRD springs and the TRD sways. they may not be perfectly matched to the stock dampers but they wouldn't have released them as a kit for the car if they were not going to be a handling improvement. they would have specified new dampers if that was the case.

I like them a lot. I don't think you are going to find any relief in a BRZ - it's going to be different but not chalk and cheese.

My wife got sick in our 86 on the stock suspension - she hasn't been in it since but she is fine with it. Ours isn't a daily and she knows what it means to me so its not going anywhere. she loves the look of the little jigger too.

maybe the twins aren't the car for you. hire one with stock suspension and see what you think.

[gpvecchi]

Update on my post with latest discoveries.

https://www.ft86club.com/forums/show...9&postcount=36

[dragoontwo]

Originally Posted by gpvecchi

Update: reading a Japanese article, I discovered that Subaru added a couple of stabilyzing spoilers behind rear wheels, on the bumper in models G and H, and suspensions have been tuned accordingly. Toyota didn't, that's why Subaru rear shocks have been revised, but not Toyota's.

Is that what the tiny plastic piece behind the rear wheel is?

[N_Raged]

Originally Posted by dragoontwo

Is that what the tiny plastic piece behind the rear wheel is?

Yes I have them on my 2019. They look so insignificant I wouldn't think it would warrant changing the damping rates to compensate.

[gpvecchi]

Those.

[Ernest72]

It supposably just smooths out the turbulent air go around the rear end. I got them for my BRZ, they were $30 bucks on eBay. Can’t say they do anything.

[nikitopo]

I have Bilstein spec'd by STI dampers in a 2015 BRZ and I'll check now the Sachs factory dampers in a 2020 BRZ. The springs on the Bilstein are 10mm lower, so the height difference is not that much. I'll be interested mainly on a comparison of damping characteristics. I am aware that factory was constantly improving the chassis stiffness and suspension up to manufacturing year 2019, so pretty interested to see how far they went.