12-10-2013, 08:56 PM
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#4 (permalink)
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Track Member
Join Date: Mar 2013
Location: Mission Viejo, CA
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Quote:
Originally Posted by 03threefiftyz
I violently disagree with the frequency guidelines above. You won't find a formula car with 1.5hz frequencies on planet earth. Most GT based race cars are 3hz+ and formula cars are over 4. 14k is not all that stiff in reality.
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Formula 1 no. Formula 5000, probably. I don't have specs on either one nor am I friends with any drivers from either one. But without Aero, I can not see any reason to use anything stiffer than 14K on a road course that has bumps, camber, and traction changes.
In a nice flat Auto X environment I can see the point. 14K spring with a corner weight of ~800 lbs is pushing the limit of tire compliance and would only be good on a very smooth flat surface-like auto X or tarmac. You will not be getting enough bump travel to ensure tire compliance. I don't know the math on bump stop rubbers, but proper bump stops is probably a better answer than 18K springs whether on tarmac or corner 6 of Big Willow.
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