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Prepping for BSP

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Old Jan 31, 2013 | 12:03 PM
  #601  
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I am curious to what kind of natural frequencies you guys are shooting for in BSP trim?
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Old Jan 31, 2013 | 03:41 PM
  #602  
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900 lbs springs is in the 2.7X range (front) 800 LBS springs is in the 2.6X range (rear), I'd say somewhere around there. Alot of people in STR ran around 900F/800R.

I'd have to look at my spreadsheet to give you exact numbers but thats ballpark.
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Old Jan 31, 2013 | 05:18 PM
  #603  
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Originally Posted by steguis
I was able to snag some 17x7 OZ Superleggera (15lb) wheels to use for my rains. Since I'm running a square setup, do you guys think it's ok to shoehorn 245 Hoosier H20s on them or should I really try to go even narrower like a 225 since i'd use these only when there's standing water?
In my opinion, by the time the hs0 is actually faster then the base a6, there needs to be a fair amount of standing water. With that said, i would not recommend wider then 225. Also as a note, many have come across the idea that a heavier wheel is better in the wet, It also provides a much larger flywheel effect for the brakes to slow consistently and not freak out in to abs ice mode... just my opinion / observation
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Old Jan 31, 2013 | 05:43 PM
  #604  
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Interesting. Didn't think of it that way.
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Old Jan 31, 2013 | 06:09 PM
  #605  
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Do Hoosier H2Os need to be heat cycled before competition like normal R-comps?
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Old Jan 31, 2013 | 07:04 PM
  #606  
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IMO, A6's are at their best with stickers on them...
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Old Jan 31, 2013 | 07:25 PM
  #607  
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Originally Posted by josh7owens
900 lbs springs is in the 2.7X range (front) 800 LBS springs is in the 2.6X range (rear), I'd say somewhere around there. Alot of people in STR ran around 900F/800R.

I'd have to look at my spreadsheet to give you exact numbers but thats ballpark.
2.7 seems high for those spring rates. Can you give me some example corner weights for a 2500-2600lb s2000?
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Old Jan 31, 2013 | 07:51 PM
  #608  
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Originally Posted by 03threefiftyz
Originally Posted by josh7owens' timestamp='1359679291' post='22306633
900 lbs springs is in the 2.7X range (front) 800 LBS springs is in the 2.6X range (rear), I'd say somewhere around there. Alot of people in STR ran around 900F/800R.

I'd have to look at my spreadsheet to give you exact numbers but thats ballpark.
2.7 seems high for those spring rates. Can you give me some example corner weights for a 2500-2600lb s2000?
"Assuming" each corner weights the same, which isn't exactly true but whatever.

Heres some corner weights of my car with 150LBS in the driver seat to simulate me..



From my spread sheet:

2750 LBS car 2600 plus my 150 lbs ass.

Front MR .7, rear MR .67

Springs:900F/800R

Wheel rate: 441F/359.12R

NF: 2.719F/2.454R
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Old Jan 31, 2013 | 07:55 PM
  #609  
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Do you have the actual LF, RF, LR, RR weights with and without you?
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Old Jan 31, 2013 | 07:57 PM
  #610  
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Solid ninja edit, Josh.
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