New PB at Thunderhill East bypass (

New lap 86DRIVE Challenge Street class record ...for an hour (beaten by 0.67 by Qianli Xing)
+ bonus: a potential 2:06.8 messed up in the last couple of corners.
Thumbnail photo credit: ‪@studiousGR86‬
Info on the car and mods:
2022 Toyota GR86 Premium
- 245/40R17 GT Radial SX2 tires on 17x9 et37 front with 3 mm spacers / et47 rear Titan 7 T-S5 wheels
- Annex Suspension ClubSpec Pro coilovers, 6k front / 8k rear springs
- 19 mm Perrin front anti-roll bar, soft setting
- OEM 15 mm rear anti-roll bar
- Brembo B-M4 front BBK
- CSG CP brake pads
For data logging, I use a DIY CAN bus reader:
github.com/tim...
RaceChrono is projected onto the head unit using Screen2Auto.

[@casgarage]

hey, that is very NICE driving! I was thinking about going front 22mm and rear 19 mm for the sway bars, do you think that is good, or too much?

[@TimurIskhodzhanov]

Thanks! Car suspension is a complex system and I can't possibly give a useful answer to this question without understanding the rest of the setup. What spring rates do you have/plan to have, and what tires/level of grip do you target?

[@casgarage]

I'll prob be on same street tires, yokohama V601, springs I'm not too sure, on Ohlins R&T factory springs. I don't even know how much spring rate they came with. @@TimurIskhodzhanov

[@casgarage]

found the spring rates, front&rear 5kg/mm@@TimurIskhodzhanov

[@TimurIskhodzhanov]

@@casgarageSorry, I somehow missed your replies. For 5k/5k rates and slightly more grip that those tires generate, I think those bars would be adequate. You can always fine tune with the rear bar if needed.

[@casgarage]

thanks for the reply @@TimurIskhodzhanov