Ferrari & F-1 Pics

Started Feb 24, 2004 | Discussions thread
John Davis Veteran Member • Posts: 3,504
Re: F-1 regulations

Kyle Burt wrote:

One of the reasons there is so littel difference in F-1 cars these
days is because of regulations - this includes the tyres. the
maximum diameter is specified & so is the tyre bead diameter. This
yields a regulated sidewall height. Since there is so much
sidewall F-1 cars use this as thier primary means of suspension,
which one of the reasons why a tyre can be designed for a specific
car (or a car for a tyre) - the flex of a sidewall has a lot to do
with the spring rate of a car..

Interesting... that's what I thought, but in a sense, for the ultimate prototype technology platform that is odd. Because a rubber tire suspension offers very little control. The theory behind low profile tires is to decouple the (uncontrolled) tire springness from the actual (controlled) suspension components - spring/shock. Of course (on daily drivers), on less than autobhan-class surfaces we pay a comfort price.

John

Here is a llink to the f-1 sporting regs if anyone is interested
(section 12 in the text deals with wheels & tyres)

http://www.fia.com/homepage/selection-a.html

John Davis wrote:
Notice the height of the sidewalls on those tires! Compare that to
today's 30-40% low profile tires of the street legals sports cars
we drive.

I guess that rubber is needed to cushion the road given that the
suspension itself is very hard. Also... lower profiles would imply
larger wheels raising the unsprung weight.

John

nick_eos wrote:

The one the only David Coul... err Mr Shoemaker himself

2003 Silverstone, 10D with a 70-300IS

Hopefullt this year will be back with the 1Ds 100-400IS and 1.4 MKII

http://www.pbase.com/nick_eos/silverstone_2003

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