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Tracking / Autocross / HPDE / Drifting What these cars were built for!


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Old 04-02-2013, 12:56 PM   #15
icemang17
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1st off.....body roll isn't neccesarily a bad thing.....it transfers grip from one tire to the other... jumping up to super stiff roll bars is NOT a good idea or a 1st step in developing a proper suspension for a track-race car.

Roll bars should be used to fine tune the handling characteristics of a vehicle to the drivers preference.... Our cars are quite loose (oversteer) out of the box...which is what most race drivers like...

Remember a sway bar is essentially and undamped spring.....which never is a good idea
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Old 04-02-2013, 01:02 PM   #16
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Originally Posted by blu_ View Post
Are the people here who have done tires and stiffened the suspension still okay with the stock bushings? I would think those would be the next weak link... but am curious if people are noticing them.
Swapping a few key bushings can make a big difference, especially when you move to stickier tires. Also, a good performance alignment will help make the most of all that grip.

To the OP... as you said, driving instruction will do more for you than reducing body roll. A good alignment at least with some camber bolts up front is a cheap mod in the meantime that you should probably do to get even wear on your tires and maximize the grip you have. Think about your budget and level of commitment and your options will start to become a little more clear.

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Old 04-02-2013, 01:11 PM   #17
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Interesting thread. So this one reason why I am hesistant to use stickier tires, and plan to stay with stock tires for now. With the increased grip and body roll, you will probably have uneven tire wear (outer edges worn prematurely). Have anyone noticed this? If so, to counter this, you could increase camber, but you can't get much camber from the stock suspension. Only -1.4 with camber bolts. This means having to move up to a coilover system with camber plates to address the uneven tire wear found with grippy tires
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Old 04-02-2013, 01:15 PM   #18
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nah I cant support that last sentiment at all

rather, youre really cuttin yourself short with that crappy oe rubber
even bone stock

really the dunlops star specs are wonderful on a bone stock car.

I literally asked my wife to drive them and see if she liked them, refused to give them back to me. take that as what its worth from a wifey.


GET RID OF PRiUS tires NOW

(Thank me later)
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Old 04-02-2013, 01:16 PM   #19
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Originally Posted by orthojoe View Post
Interesting thread. So this one reason why I am hesistant to use stickier tires, and plan to stay with stock tires for now. With the increased grip and body roll, you will probably have uneven tire wear (outer edges worn prematurely). Have anyone noticed this? If so, to counter this, you could increase camber, but you can't get much camber from the stock suspension. Only -1.4 with camber bolts. This means having to move up to a coilover system with camber plates to address the uneven tire wear found with grippy tires
That goes for the stock tire too. They're stickier than people believe them to be.

Body roll isn't a bad thing. Just roll with it
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Old 04-02-2013, 01:39 PM   #20
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Originally Posted by Huehuecoyotl View Post
nah I cant support that last sentiment at all

rather, youre really cuttin yourself short with that crappy oe rubber
even bone stock

really the dunlops star specs are wonderful on a bone stock car.

I literally asked my wife to drive them and see if she liked them, refused to give them back to me. take that as what its worth from a wifey.


GET RID OF PRiUS tires NOW

(Thank me later)
Not sure how the wifey meter is relevent here, but are the outer edge wearing at all? If not, you might not be driving hard enough if you're on stock camber settings.

Don't me wrong, I get the value of grippy tires. I'm running NT01s on my spyder and it's a blast to drive. There's also plenty of value in running stock tires at the track in a car like the BRZ. Especially if you want to learn car control at reasonable speeds.
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Old 04-02-2013, 10:01 PM   #21
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Originally Posted by Huehuecoyotl View Post
nah I cant support that last sentiment at all

rather, youre really cuttin yourself short with that crappy oe rubber
even bone stock

really the dunlops star specs are wonderful on a bone stock car.

I literally asked my wife to drive them and see if she liked them, refused to give them back to me. take that as what its worth from a wifey.


GET RID OF PRiUS tires NOW

(Thank me later)
Hey hey there now stock tires are actually really really good.

I ran all stock except brake pads, air filter and lines at streets of willow CW on the 31st for the first time and got 1:34.522, 2:16.XXX at Button willow CW13, and Chuckwalla CW 2:17. I dont consider myself a good driver by any means and just started tracking January of this year and honestly these tires are awesome to learn on. You learn to control the car when it breaks loose. It is much harder to learn that at higher speeds with the grip better tires have. Plus sliding around is really fun
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Old 04-02-2013, 10:11 PM   #22
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Quote:
Originally Posted by RAWR BRZ View Post
Plus sliding around is really fun
Do you think your times would be faster if you were sliding less? I'm not doubting it lowers the limit so its easier to learn.
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Old 04-02-2013, 10:32 PM   #23
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I've got 245/40 ZIIs on a 17x8 rpf1 and a Strano front bar and I -love- how the car feels on the street. It still slides if I want it to, but just has incredible stick. I've only got the tires on to scrub them for 3 days (they are just for auto-x) but I will be putting stickier rubber on for the summer on the OEM wheels.

I've got a couple middle of nowhere, visibility for miles loops I run out by my parents house in the country and I didn't feel like I was getting excessive sway. The Strano front sway bar really tightened up the front end and steering response too. I haven't gotten it on a track yet (Blackhawk in May) but I really like how it feels right now.
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Old 04-02-2013, 10:54 PM   #24
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Do you think your times would be faster if you were sliding less? I'm not doubting it lowers the limit so its easier to learn.
I was sliding my oem tires to some descent lap times at Big Willow on the 24th.
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Old 04-02-2013, 11:13 PM   #25
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Do you think your times would be faster if you were sliding less? I'm not doubting it lowers the limit so its easier to learn.
Those were "intentional" slides, when I said fun to slide around :P theyre much easier to slide than say rs3 but yes I agree upgrading tires = go faster. What I am trying to say is, if someone runs stock 2:20 at button willow, they can run 2:15 at least with rs3, but thats upgrading the car and not the driver someone who can drive can run 2:15 with stock tires at button willow so the stocks "arent" as bad as people think they are so imo more people should rock them a bit longer then upgrade to rs3. It is much scarier and harder to control a car that breaks loose on rs3 than prius tires. Just too many people improving their car to go faster rather than themselves. just saying
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Old 04-03-2013, 01:26 AM   #26
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I was sliding my oem tires to some descent lap times at Big Willow on the 24th.
weren't you running 1:42-1:43 or something? I can just imagine how scary it is to go through turn 8 and 9 at those speeds.
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Old 04-03-2013, 02:46 AM   #27
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weren't you running 1:42-1:43 or something? I can just imagine how scary it is to go through turn 8 and 9 at those speeds.
Yup mid 1:43's it was fun apexing turn 8 at 116mph with a good amount of sideslip on all four tires :-)
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Old 04-03-2013, 11:05 AM   #28
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when I finally make it out to buttonwillow and those other great tracks in cali, I want y'all to show me the lines!
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