BRZ/FR-S Suspension Options List (Springs and Coilovers)

[Turbowned]

So funny, I always assumed the 86 and FR-S had the same spring rates and thus handled the same. Apparently I was wrong!

[Racecomp Engineering]

Originally Posted by gmookher

why are most companies running such stiff rear coils???? Its almost hard to find a soft rear aftermarket coil, for those of us not trying to drift but rather keep the rubber from slipping? I drove the TRD coils this weekend and the rear was way too stiff. ride height ok, compliance-none

*cough* rceyellows *cough*

[xwd]

Ignore I was incorrect, didn't see the different springs for the MT versus AT.

[TOM'S]

BuddyClub D-1 Damper kit( BC02-D112ZN6)
9k front 7k rear, solid upper mount
MSRP $1549

BuddyClub Racing Spec Damper kit ( BC02-RSD12ZN6)
9K front 7k rear, pillow ball w/ upper camber adjust.
MSRP 1799

[ahausheer]

Originally Posted by Turbowned

So funny, I always assumed the 86 and FR-S had the same spring rates and thus handled the same. Apparently I was wrong!

Me too, so there are in fact three different stock suspension tunes? Perhaps a new thread is in order. How does the Scion compare to the Toyota? I don't know enough about spring rates etc to make an inference from the data alone. Would one car tend towards over steer more? Which would have less roll? Which would allow more high frequency bumps though to the cabin?

[Nafe]

TRD (no model) TBD-TBD/3.5K TBD-TBD/5.8K TBD $TBD$

Can someone tell me where these figures came from?? is that TRD USA or TRD JPN??
I have a set of TRD JPN springs here, not fitted and I haven't got the spring rates.. It lists spring rates there, but not in the spring only section?? If these spring rates are correct for the JPN stuff I will be over the moon. *slightly* stiffer in the rear than I was wanting, but not the end of the world

[WindMeisters]

Thanks for the info guys. I was also surprised between the differences of the 86 and Fr-s. Off topic
I know there is a particular thread on this but...what rates would provide the most stability.

[WingsofWar]

updated with Buddy Club coils

[Nafe]

Originally Posted by WingsofWar

updated with Buddy Club coils

Hey mate, can you offer some insight on this at all please??
Thanks

TRD (no model) TBD-TBD/3.5K TBD-TBD/5.8K TBD $TBD$
Can someone tell me where these figures came from?? is that TRD USA or TRD JPN??
I have a set of TRD JPN springs here, not fitted and I haven't got the spring rates.. It lists spring rates there, but not in the spring only section?? If these spring rates are correct for the JPN stuff I will be over the moon. *slightly* stiffer in the rear than I was wanting, but not the end of the world

[WingsofWar]

Originally Posted by Nafe

Hey mate, can you offer some insight on this at all please??
Thanks

the TRD stuff?

[SLICVIC]

best thread on here so far. very interested to know how low the BC and Stance coils can go. Rear coilovers seem limited on how low before bottoming out into the control arm bushing

[Nafe]

Originally Posted by WingsofWar

the TRD stuff?

Yeah mate, if you can, the TRD stuff.

[Racecomp Engineering]

Originally Posted by WindMeisters

Thanks for the info guys. I was also surprised between the differences of the 86 and Fr-s. Off topic
I know there is a particular thread on this but...what rates would provide the most stability.

I think a lot of these lowering springs go waaay too soft up front and way too stiff in the rear, which is not good for stability. Yes stiff in the rear will help the car turn but too much when you have such a soft front can cause issues. Being so soft up front with a bigger drop means you're going to be riding the bumpstops and could have corner entry understeer, followed by snap oversteer if you lift to bring things back in line.

Just my thoughts.

- Andrew

[WingsofWar]

Originally Posted by Racecomp Engineering

I think a lot of these lowering springs go waaay too soft up front and way too stiff in the rear, which is not good for stability. Yes stiff in the rear will help the car turn but too much when you have such a soft front can cause issues. Being so soft up front with a bigger drop means you're going to be riding the bumpstops and could have corner entry understeer, followed by snap oversteer if you lift to bring things back in line.

Just my thoughts.

- Andrew

I agree, the factory configuration on the FRS is really balanced and rotates incredibly well when you need it. Giving it more rotation from those spring rates listed really makes me wonder how and why the aftermarket came to offer those particular sets. Perhaps the spring rates reflect the general tuning of most FR cars? In case of a S13, i can see those rates be a much better improvement.

Id love to take the time to investigate it further, and see what real time testing has been done to get good suspension tuning recommendations for those particular rates.

Maybe chat with shops and companies that was one of the few shops offered early pre-production releases for development.