SCCA Solo C Street Discussion

[TrqlessWonder]

Originally Posted by simpleisbest

Just needed to get to a computer.

Please find attached the pdf copy of an official publication from Toyota's accessories group. Big thanks to Jason I. and Steve M. to help clarify this situation for all.

This letter hereby confirms that the TRD Spring and Sway bar packages have been available as port options for all year FR-Ss to date.

Enjoy!

That looks like it should get the job done for surviving a protest. Nice work.

[toeout]

What will be the end game now for the FR-S in CS? What is the earliest they could re-class the car or is it more complicated than that? Really thinking about STX->CS

[G_Ride]

I'm curious to see how an FRS does with those springs and swaybars now.

[G_Ride]

Originally Posted by toeout

What will be the end game now for the FR-S in CS? What is the earliest they could re-class the car or is it more complicated than that? Really thinking about STX->CS

The earliest we would see re-classing is next year. I doubt the FRS will get re-classed.

[simpleisbest]

Hard to say. My money would be a combination of either:

1) Classify as "best of breed" of the twins for Street. Bring the RS 1.0 back into CS.
2) Move the BRZ down to D or E Street
3) Bump the FR-S entirely up to B-Street (unlikely but possible)

Either way, it is what it is. I'm interested to see how this plays out.

[renfield90]

Unless we are somehow not faster than the RX-8 or the MX-5, we're off to BS. Hell, I would expect some ringers to build out an FRS a month before nats to try and vulture the class.

Let's be real here: yes, as competitors we need to max out the rules, but this sort of disruption isn't good for the sport. Everyone with a BRZ is gonna get a shaft here.

The sane thing to do, if you're the SEB and you're seeking stability in the category after one of the most disruptive rules transitions ever, is to limit this disruption to one year. That lets the BRZ/MX-5/RX-8 crowd stay in the game for next year. Otherwise CS becomes spec FRS.

[simpleisbest]

Originally Posted by renfield90

Unless we are somehow not faster than the RX-8 or the MX-5, we're off to BS. Hell, I would expect some ringers to build out an FRS a month before nats to try and vulture the class.

Let's be real here: yes, as competitors we need to max out the rules, but this sort of disruption isn't good for the sport. Everyone with a BRZ is gonna get a shaft here.

The sane thing to do, if you're the SEB and you're seeking stability in the category after one of the most disruptive rules transitions ever, is to limit this disruption to one year. That lets the BRZ/MX-5/RX-8 crowd stay in the game for next year. Otherwise CS becomes spec FRS.

Don't forget about the ND! It's supposed to land in C-Street and is looking like the car to have...

[chucky12012]

Originally Posted by renfield90

Unless we are somehow not faster than the RX-8 or the MX-5, we're off to BS. Hell, I would expect some ringers to build out an FRS a month before nats to try and vulture the class.

Let's be real here: yes, as competitors we need to max out the rules, but this sort of disruption isn't good for the sport. Everyone with a BRZ is gonna get a shaft here.

The sane thing to do, if you're the SEB and you're seeking stability in the category after one of the most disruptive rules transitions ever, is to limit this disruption to one year. That lets the BRZ/MX-5/RX-8 crowd stay in the game for next year. Otherwise CS becomes spec FRS.

I think another possibility is that the SEB simply rolls out in the end of year Fasttrack a specific rule disallowing the TRD parts for the FR-S. This would even it back out and we all know that at the end of the day, they can make exceptions to a rule if they feel so inclined. That being said, thank you for doing the leg work to dig into this. I'm not sure how my revalved Bilsteins will play with the lowering springs anyways, so Ill watch from the sideline to see how it all works out.

[Wepeel]

Well, this is awkward.

[SVLTE]

Just bought my '13 FR-S about a month ago, and have jumped headfirst into figuring out how I want to set up my car for CS. This spring and sway business is definitely good news, but throws a minor curveball into my decision with regard to dampers. I was leaning toward bilstein B6's given their build quality, their serviceability, and my lack of experience with suspension tuning on cars (I understand it on my mountain bike, but that's a whole different ball game). Given that these shorter, stiffer springs are now legal, are bilstein b8's also legal? I only found one mention in this thread that stated their shorter length excluded them, but would the overall length of stock dampers with TRD springs put the B8's within the limits of SCCA's stated 1" limit with regard to stock length?

[Jawnathin]

Originally Posted by SVLTE

Just bought my '13 FR-S about a month ago, and have jumped headfirst into figuring out how I want to set up my car for CS. This spring and sway business is definitely good news, but throws a minor curveball into my decision with regard to dampers. I was leaning toward bilstein B6's given their build quality, their serviceability, and my lack of experience with suspension tuning on cars (I understand it on my mountain bike, but that's a whole different ball game). Given that these shorter, stiffer springs are now legal, are bilstein b8's also legal? I only found one mention in this thread that stated their shorter length excluded them, but would the overall length of stock dampers with TRD springs put the B8's within the limits of SCCA's stated 1" limit with regard to stock length?

The spring doesn't change the length of the stock dampers. The same damper appears to be used whether you have the 'regular' springs or these new TRD springs. If the shocks were illegal before, they're still illegal now.

[Jawnathin]

Went to the Scion webpage and 'built' my FRS. On the swaybar package, it says the rear bar is...

15.8mm 4130 solid rear sway bar with polyurethane bushings

Yet the TRD document attached earlier says its 17.5mm.

Which one is correct and/or legal?

[simpleisbest]

Originally Posted by Jawnathin

Went to the Scion webpage and 'built' my FRS. On the swaybar package, it says the rear bar is...

15.8mm 4130 solid rear sway bar with polyurethane bushings

Yet the TRD document attached earlier says its 17.5mm.

Which one is correct and/or legal?

Probably a typo. I expect it could happen with internal publications. The PN is correct and the PN is actually on the bars themselves. PNs are also on each spring. Easy match there.

Also FYI, it seems the bars are hollow. So expect lower stiffness vs a solid bar.

Still no idea on the spring rates or sway bar wall thickness.

Also, keep in mind the springs are meant to be paired with the stock dampers and still keep them within OEM estimated life expectancy. No idea on how much firmer than stock they calculate out to be.

[SVLTE]

Originally Posted by Jawnathin

The spring doesn't change the length of the stock dampers. The same damper appears to be used whether you have the 'regular' springs or these new TRD springs. If the shocks were illegal before, they're still illegal now.

I searched around a bit and THINK I answered my own question. B8's are less than 1" shorter in extended length than the B6, which I believe are OEM length. I'm hoping to get some confirmation from the earlybirds on here before I order tomorrow. I'm way too lazy to pop the OE dampers off and measure them.