Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB
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Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB (https://www.ft86club.com/forums/index.php)
-   Suspension | Chassis | Brakes -- Sponsored by 949 Racing (https://www.ft86club.com/forums/forumdisplay.php?f=59)
-   -   Better handling by removing/reducing swaybars? (https://www.ft86club.com/forums/showthread.php?t=93025)

Captain Snooze 08-10-2015 01:52 AM
Quote:
Originally Posted by Chad_W (Post 2351552)
At the same time you replaced the OEM sway bars with ones 2-3mm less in diameter... Would you retain some ride comfort here, while shifting some of the anti roll responsibility to your now stiffer strut/spring combo?

I'm really only thinking about this for a street application. The desired result would be to not sacrifice too much compliance, while going to a slightly more aggressive spring/strut combo
Why are you ignoring damper quality from your scenario?

EAGLE5 08-10-2015 02:30 AM
The FR-S will understeer until you apply power or jerk it into a corner. Then it will happily oversteer. Damnit.

Ultramaroon 08-10-2015 03:51 AM
Quote:
Originally Posted by jsimon7777 (Post 2351911)
The FR-S will understeer until you apply power or jerk it into a corner. Then it will happily oversteer. Damnit.
Not my experience. I apply power and it just plows more.

Chad_W 08-10-2015 11:41 AM
Awesome data! Thanks for all the input.

Is it fair to say that not all roll is bad? Going completely flat around corners my be a desirable trait, but does that mean it offers the ultimate amount of grip? Can a suspension with a little bit of roll be grippier (like the new Miata for example)?

Chad_W 08-10-2015 11:42 AM
Quote:
Originally Posted by Captain Snooze (Post 2351898)
Why are you ignoring damper quality from your scenario?
In this case I'm saying the OEM dampers are getting switched with Bilsteins.

wparsons 08-10-2015 11:47 AM
Quote:
Originally Posted by jsimon7777 (Post 2351911)
The FR-S will understeer until you apply power or jerk it into a corner. Then it will happily oversteer. Damnit.
You can coax it into oversteering, but you can do that with almost any car with the right (or wrong) inputs. I find it easier to get lift oversteer than power on oversteer from mine.

EAGLE5 08-10-2015 12:08 PM
Yes, lifting mid corner will take the weight off the back tires and induce oversteer. That makes the car rotate too. There is so much to EASILY play with on the frs's stock suspension and tires, it's kind of amazing. I love it. My one spin yesterday was power oversteer.

Gunman 08-10-2015 12:53 PM
Quote:
Originally Posted by Chad_W (Post 2352135)
Awesome data! Thanks for all the input.

Is it fair to say that not all roll is bad?
Yes.

Quote:
Originally Posted by Chad_W (Post 2352135)
Going completely flat around corners my be a desirable trait, but does that mean it offers the ultimate amount of grip? Can a suspension with a little bit of roll be grippier (like the new Miata for example)?
During a Claude Rouelle seminar, he talked about roll, and weight transfer, and that due to the weight transfer in roll, the outside tires can gain more grip than the inside tires lose. So, up to a point, weight transfer via roll is a good thing, to gain grip.

GSpeed 08-10-2015 02:07 PM
Quote:
Originally Posted by Gunman (Post 2352224)
Yes.



During a Claude Rouelle seminar, he talked about roll, and weight transfer, and that due to the weight transfer in roll, the outside tires can gain more grip than the inside tires lose. So, up to a point, weight transfer via roll is a good thing, to gain grip.
I would LOVE to take one of his seminars again. It's so much more expensive when you're not an FSAE student!

Jake

Racecomp Engineering 08-10-2015 02:44 PM
Any of you guys going to PRI this year?

Oh and on topic...the stock front swaybar contributes quite a bit more to roll-resistance than the rear bar. Removing the front bar would have much more of an impact than removing the rear bar (and IMO it wouldn't be an improvement for MOST set-ups).

- Andrew

Ultramaroon 08-10-2015 03:52 PM
Quote:
Originally Posted by PST (Post 2352316)
I would LOVE to take one of his seminars again. It's so much more expensive when you're not an FSAE student!

Jake
Yay FSAE. Go Lobos! :D

fika84 08-10-2015 04:03 PM
I used to work for Claude Rouelle. For 2 years. The only people that look up to him, are FSAE students. He is despised by the professional world.

It all depends on the tires and what they want.

Ultramaroon 08-10-2015 04:44 PM
Quote:
Originally Posted by fika84 (Post 2352436)
I used to work for Claude Rouelle. For 2 years. The only people that look up to him, are FSAE students. He is despised by the professional world.

It all depends on the tires and what they want.
Care to elaborate?

Racecomp Engineering 08-10-2015 04:56 PM
Quote:
Originally Posted by fika84 (Post 2352436)
I used to work for Claude Rouelle. For 2 years. The only people that look up to him, are FSAE students. He is despised by the professional world.

It all depends on the tires and what they want.
Interesting.

- Andrew


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