Prototype Swift Springs for FR-S - Page 6 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

JoeBoxer · 01-03-2013, 05:15 PM

Any thoughts on using the BRZ ones on a FR-S with Koni's?

bpracer · 01-03-2013, 05:30 PM

I'm using the BRZ part number on my FR-S. I've spent too much money on the car recently to upgrade the dampers.

The damping is OK with the stock units but I think the front may be a bit more under-damped. I don't have enough time with good weather to have a definitive opinion.

JoeBoxer · 01-03-2013, 06:46 PM

Quote:

Originally Posted by bpracer

I'm using the BRZ part number on my FR-S. I've spent too much money on the car recently to upgrade the dampers.

The damping is OK with the stock units but I think the front may be a bit more under-damped. I don't have enough time with good weather to have a definitive opinion.

So you're saying the 3.8 fronts could stand to be stiffer? Like RCE Yellows maybe? I've got some soft front springs now and i'm looking to get something stiffer per RCE and others recommendation.

mach330 · 01-03-2013, 06:54 PM

Quote:

Originally Posted by bpracer

Yes they do, but they list the wrong rates for the BRZ part number, the FR-S listing is correct.

What's the rates for the brz compare to frs on these swift springs if they are different?

Tap'd from my G-Nex

JoeBoxer · 01-03-2013, 06:56 PM

Quote:

Originally Posted by mach330

What's the rates for the brz compare to frs on these swift springs if they are different?

Tap'd from my G-Nex

BRZ is 3.8/4.5 and FR-S is 3.0/4.5 I think.

Evasive Motorsports · 01-03-2013, 09:15 PM

We have these instock.

-Randy

mach330 · 01-03-2013, 09:21 PM

Quote:

Originally Posted by Evasive Motorsports

We have these instock.

-Randy

Wanted to get a quote to install these and do alignment. Was thinking of doing this during dyno day.

Tap'd from my G-Nex

wparsons · 01-04-2013, 04:19 PM

Quote:

Originally Posted by JoeBoxer

BRZ is 3.8/4.5 and FR-S is 3.0/4.5 I think.

If that's true then these are a fair amount software than the RCE yellows (400lbs all around?)!

JoeBoxer · 01-04-2013, 04:27 PM

Quote:

Originally Posted by wparsons

If that's true then these are a fair amount software than the RCE yellows (400lbs all around?)!

Here's a link with more info
http://www.vorshlag.com/forums/showt...7516#post57516

tonystewart · 01-04-2013, 04:37 PM

RCE yellow is 250

wparsons · 01-04-2013, 08:45 PM

Hrmm... not sure where I got the 400lb/in figure from, 250 isn't even 4kg/mm even so it's not like I just added zeroes. Must be too much vegging over the holidays

It sounds like the BRZ rates are probably a pretty good neutral rate with the FRS rates being more tail happy (although a bit less than stock looking at the front to rear rates).

Has anyone driven an FRS with both these and the yellows to compare the balance?

bpracer · 01-05-2013, 12:02 AM

Quote:

Originally Posted by wparsons

Hrmm... not sure where I got the 400lb/in figure from, 250 isn't even 4kg/mm even so it's not like I just added zeroes. Must be too much vegging over the holidays

It sounds like the BRZ rates are probably a pretty good neutral rate with the FRS rates being more tail happy (although a bit less than stock looking at the front to rear rates).

Has anyone driven an FRS with both these and the yellows to compare the balance?

I think you would be hard pressed to find somebody that had driven these back to back. My car feels pretty neutral at speed with the Swift BRZ springs. Low speed, it is still rotates fine, doesn't push. Between the Racecomps and the "BRZ" Swift's it may be more personal preference. The drop is slightly lower on the Swifts.

I have slightly wider track (10mm spacers) than the front. That softens the rear rate a bit.

I got tired of waiting for what the BRZ STI springs rates might be and if they would be available.

If I lived somewhere with nice smooth roads I probably would have already gone with the Racecomps. As it was, the Swifts offered a slightly less aggressive spring rate for the front while still not biased too far to the rear.

If my car had come with the worldwide Toyota GT86 rates, I might not have changed the springs. But yeah, it looks better lowered and I will admit to that bit of form, rather than function, with my choice.

mines13 · 01-07-2013, 12:29 PM

I just installed the production version of the BRZ Swift springs on my FR-S. (3.8F 4.5R) I previously had a pre-production set of of the FR-S rates (3F 4.5R) They are still very neutral, but not quite as tail happy as the FR-S rates were. I expect increased stability on track, but the FR-S rates would likely be better for slower more technical use, such as AutoX or other parking lot antics, if that is your bag.

gmookher · 01-07-2013, 12:53 PM

so what are the correct rates for swifts?

01-04-2013, 04:37 PM	#80
tonystewart Senior Member Join Date: May 2012 Drives: 2013 Scion FR-S Raven Location: Lake Worth Florida Posts: 1,182 Thanks: 76 Thanked 373 Times in 253 Posts Mentioned: 13 Post(s) Tagged: 1 Thread(s)	RCE yellow is 250 __________________ May'12 AT Raven, OFT V2, Perrin IntakeTube, Pulley & Overpipe,HKS Snorkel,FA20 EL Header,Nameless Frontpipe w/ Helmholtz, Crawford AOS, Cusco O2W Cooler, Grimmspeed Strut/MC Brace, Winjets w/D2S 3.0 HID by Illuminating Lighworkx, Fogs w/EU Stalk, LED's, JDM UnderPanels, Diffuser, Rigid Collars, Whiteline, HVT Camber Plates, Koni's, Swift Springs, GTSpec LCA, SPC Toearms, DBA 4K T-Slot Rotors, Ferodo DS2500, Vorshlag BrakeLines, MichelinPSS, 5Axis Wing, Raammat, Ensolite, JPM Coachworks, OEM+Ref400, 20mmspacers, TOMS

01-07-2013, 12:29 PM	#83
mines13 Join Date: Nov 2011 Drives: '13 FR-S '12 CBR1000RR Location: Irvine, CA Posts: 1,038 Thanks: 305 Thanked 527 Times in 241 Posts Mentioned: 22 Post(s) Tagged: 0 Thread(s)	I just installed the production version of the BRZ Swift springs on my FR-S. (3.8F 4.5R) I previously had a pre-production set of of the FR-S rates (3F 4.5R) They are still very neutral, but not quite as tail happy as the FR-S rates were. I expect increased stability on track, but the FR-S rates would likely be better for slower more technical use, such as AutoX or other parking lot antics, if that is your bag. Last edited by mines13; 01-07-2013 at 12:41 PM.

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01-03-2013, 05:15 PM	#71
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