I will echo what Ian wrote. When the Azenis got above 130ish on my pyrometer
they began to loose grip. This temp was easily acheived after one run. So
water is definately necessary after that.
Pete
>Ian wrote:
>Down in Calclub (l.a. region) the STS crowd got together a while ago and
>figured out the whole water sprayer thing on the azeni'. I think the ideal
>temp was decided to be about 130-135 and all the top STS contenders spray
>their tires down after *every* run. I think they wet them more than the r-
>tire guys. I haven't noticed mine overheating but my car is also 2300# and
>has that camber friendly double wishbone thing that might help. Or its
>driving style.
>
>Ian
>
>
> > A friend co-drove my car on Sunday. We were getting
> > cycled through the line the second we switched drivers
> > and as a result the tires got a little toasty. Okay...
> > more than a little toasty, they were BLAZING hot!!! We
> > both noticed the grip was getting progressively worse.
> > Normally I'd question my own driving but, I was really
> > pleased with my 3rd and final run and as we were
> > crossing the finish line my co-driver said "wow, that
> > should be a really good time". I thought so too, I
> > didn't make any major mistakes, the run just felt
> > great. I was thinking that I nailed something in the
> > high 58's. Nope, I was over a half second slower than
> > my first (which was also my fastest) run and ended up
> > with a 60.2xx. We were both kind of puzzled.
> >
> > I often see people with little containers of water
> > cooling down their tires between runs. I always
> > thought to myself "self, you are't a consistent enough
> > driver for that to make a difference". After Sunday
> > I'm thinking to myself "self, you really ought to buy
> > a water tank".
> >
> > So for those in the know, what's the deal? Does
> > watering the tires really help (I kinda wish watering
> > them would help me to grow new ones)? Is this heat vs
> > performance curve that we noticed real or imagined?
> > Has anyone conducted any (somewhat) controlled
> > experiments with the Falkens to evaluate their
> > performance in relation to heat?
> >
> > Cheers, Joe
> >
> > =====
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> >
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>
>Ian Green
>2003 Team Coleader
>UC Davis Formula SAE
>http://mae.ucdavis.edu/~fsae
>97 Honda Civic CX
>http://www.geocities.com/stscxr
>
>"I never let school get in the way
>of my education." - Mark Twain
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