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#&$#//#-*<<<14th Official Hard-at-work Thread

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Old 05-03-2016, 06:33 AM
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are you running a square setup?
Old 05-03-2016, 10:26 AM
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Originally Posted by JBamin
are you running a square setup?
Yes I am, 255 RS-3's all around, 14k springs in the front, 12k in the rear. Everything other than wheels and tires and coilovers is stock.
Old 05-03-2016, 01:40 PM
  #733  

 
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Evening flyby lol...
Old 05-03-2016, 05:26 PM
  #734  

 
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Originally Posted by ISADE
Originally Posted by JBamin' timestamp='1462286031' post='23955644
are you running a square setup?
Yes I am, 255 RS-3's all around, 14k springs in the front, 12k in the rear. Everything other than wheels and tires and coilovers is stock.
I was wondering how square affected the early ap1. I keep reading more articles were guys mention it causing more oversteer.
Old 05-04-2016, 06:40 AM
  #735  

 
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Originally Posted by JBamin
Originally Posted by ISADE' timestamp='1462299989' post='23955959
[quote name='JBamin' timestamp='1462286031' post='23955644']
are you running a square setup?
Yes I am, 255 RS-3's all around, 14k springs in the front, 12k in the rear. Everything other than wheels and tires and coilovers is stock.
I was wondering how square affected the early ap1. I keep reading more articles were guys mention it causing more oversteer.
[/quote]

It's really odd that oversteer is insanely easy at autocross, but at Mid Ohio it felt very well balanced. I was expecting oversteer to be killer on the track (higher speed) but it wasn't.
Old 05-04-2016, 07:10 AM
  #736  
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Originally Posted by ISADE
Originally Posted by JBamin' timestamp='1462325211' post='23956321
[quote name='ISADE' timestamp='1462299989' post='23955959']
[quote name='JBamin' timestamp='1462286031' post='23955644']
are you running a square setup?
Yes I am, 255 RS-3's all around, 14k springs in the front, 12k in the rear. Everything other than wheels and tires and coilovers is stock.
I was wondering how square affected the early ap1. I keep reading more articles were guys mention it causing more oversteer.
[/quote]

It's really odd that oversteer is insanely easy at autocross, but at Mid Ohio it felt very well balanced. I was expecting oversteer to be killer on the track (higher speed) but it wasn't.
[/quote]


Adding extra grip to the front will lossen up a car.

I think there are a couple things that you need to consider.

The AP1 problem is typically a snap response when the car is loaded and you step over the limit. AP2 geometry changes, and damper changes helped reduce this. Typically a transient issue is solved with geometry and damping.

As far as the transient loose condition, in autocross the transitions are extremely fast and tend to make apparent a transient problem in the car moreso than at the track where it is more subtle due to smaller and slower inputs.

Until you get pushing hard in HPDE 3/4, you probably won't notice the snap issues. HPDE 1/2 is too slow and safe to really start seeing the limit of the car. You would have to do something really abnormal to upset the car in 1/2 to notice the snap oversteer.

With that said, when I was square on stock suspension, the snap oversteer seems the same on an AP2. The static balance was looser, but I kept the rear bar as I prefer to drive off the rear wheel. Others disconnect the rear bar to bring the static balance more neutral/tight.

Old 05-04-2016, 08:01 AM
  #737  

 
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track and autocross oversteer is an expected beast at some point in time. my main worry though is when I experience it while driving spiritedly on backroads... trees, ditches, and poles do not play as nice as cones and sandpits.
Old 05-04-2016, 08:16 AM
  #738  
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Originally Posted by JBamin
track and autocross oversteer is an expected beast at some point in time. my main worry though is when I experience it while driving spiritedly on backroads... trees, ditches, and poles do not play as nice as cones and sandpits.

^ and that's why I keep spirited driving to the track I've had my fair share of pucker up moments, especially at the Dragon (129) and on Hellbender (28). I've slowed down considerably, and by slowed down I mean, from slow to turtle

Oh, and make no mistake, I'm slow at the track too. Just even slower on public roads.
Old 05-04-2016, 08:46 AM
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Originally Posted by JBamin
track and autocross oversteer is an expected beast at some point in time. my main worry though is when I experience it while driving spiritedly on backroads... trees, ditches, and poles do not play as nice as cones and sandpits.
I would commend you for finding those limits at autocross and track. Use those experiences to recognize what happens at the limit, and how to avoid it on the street.

I recently spoke with an exceptional former pro driver, instructor at mid Ohio school and friend. He said they won't allow students out on the main track in the s2000's anymore. This is due to the high degree of difficulty of recovering the car, once it's beyond just loose. Too much risk. Food for thought when on a spirited street drive.
Old 05-05-2016, 04:49 PM
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Originally Posted by BlueBarchetta
Originally Posted by JBamin' timestamp='1462377685' post='23956760
track and autocross oversteer is an expected beast at some point in time. my main worry though is when I experience it while driving spiritedly on backroads... trees, ditches, and poles do not play as nice as cones and sandpits.
I would commend you for finding those limits at autocross and track. Use those experiences to recognize what happens at the limit, and how to avoid it on the street.

I recently spoke with an exceptional former pro driver, instructor at mid Ohio school and friend. He said they won't allow students out on the main track in the s2000's anymore. This is due to the high degree of difficulty of recovering the car, once it's beyond just loose. Too much risk. Food for thought when on a spirited street drive.
I hope he isn't there this coming Tuesday. I an attending a class and will be using my S!


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